Construction of Sewage Pumping Station, including SITC of Solar Panel Peparlla at-Siddhpur, Dist. Patan

ITEM NO –3: Excavation for foundation for loose and soft soil including sorting out and

stacking of useful materials and disposing of the excavated stuff up to

meter lead incl. dewatering forexcavationinwetcondition

 All sorts of soil

Any soil which generally require close application of picks or jumpers or scarifies to

loosen it stiff sand, gravel, clay soft and murum etc. including shoring, strutting

dewatering as necessary etc. fall under this category.

1.1. Any soil which generally yields to the application of pickaxes and shovels, phawaras

rakes or any such ordinary excavating implement or organic soil, gravel silt, sand turf

loam, clay, peat etc., fail under this category

2.0. Clearing the site

2.1. The site on which the structure is to be built shall be cleared, and all obstructions loose

stone, materials and rubbish of all kind bush wood and trees shall be removal as

directed The materials so obtained shall be property of the Government and shall be

conveyed und stacked as directed with all lead. The roots of the trees coming in the

sides shall be cut and coated with a hot asphalt

2.2. The rate of side clearance is deemed to beincluded in the rate of earth work for which no

extrawill be paid.

3.0. Setting out

After clearing the site the center lines willbe given by the Engineer-in-charge. The

contractor shall assume full responsibility for alignment, elevation and dimension of each

and all 'parts of the work. Contractor shall supply labours materials, etc. required for

setting out the reference marks and bench 'marks and shall maintain them as long as

required and directed.

4.0. Excavation

The excavation in foundation shall be carried out in true line and level and shall have the

width and depth as shown in the drawings or as directed. The contractor shall do the

necessary shoring and shutting or providing necessary slopes to a safe angle, at his own

cost. The payment for such precautionary measures shall be paid separately it not

specified. The bottom of the excavated area shall be leveled both longitudinally and

transversely as directed by removing and watering as required no. earth filling will be

allowed for brining it to level, if by mistake or any excavation is made deeper or wider

than, that shown on the plan or directed. The extra depth or width shall be made up with

concrete of same proportion as specified for the foundation concrete at the cost of the

contractor. The excavation up to1.50 mt. depth shall be measured under this item.

5.0. Disposal of the excavated stuff

5.1. The excavated stuff of the selected type shall be used in filling the trenches and plinth or

leveling the ground in layers including ramming and watering etc.

5.2. The balance of the excavated quantity shall be removed by the contractor from the site

of work to a place as directed with lead up to all lead and lift.

6.0. Mode of measurements & payment

6.1. The measurement of excavation in trenches for foundation shall be made according to

the sections of trenches shown on the drawing or as per sections given by the Engineer-

in-charge. No payment shall be made for surplus excavation made in excess of above

requirements or due to stopping and sloping back as found necessary on account of

conditions of soil and requirements of safety.

6.2. The rate shall befor a unit of one cubic meter.

ITEM NO –4: Providing and laying controlled cement concrete M25 for bottom plug for

well in drycondition, including ramming and curing or under water by

tremie or any other suitable method complete

The work shall be executed as per specification of Item No. 5 except the work is

for Providing and cast in situ C.C. in grade M-25 proportions of ingredients as per mix

design by weigh batching using granite, quartzite trap metal of size 12 mm to 20 mm

and or 6 mm to 12 or 6 mm to 12 mm mm including scaffolding centering formwork,

needle vibrated consolidation, curing and hydraulic testing etc. complete

(excluding cost of reinforcement) with centering & shuttering/ deshuttering etc.

for all water retaining structures. e) Sump kerb, Staircase

ITEM NO –5: Providing and casting in situ Controlled Cement Concrete M- 300 for Well

curbs including necessary shuttering, laying, vibrating and curing complete..

The work shall be executed as per specification of Item No. 5 except the work is

for Providing and cast in situ C.C. in grade M-30 proportions of ingredients as per mix

design by weigh batching using granite, quartzite trap metal of size 12 mm to 20 mm

and or 6 mm to 12 or 6 mm to 12 mm mm including scaffolding centering formwork,

needle vibrated consolidation, curing and hydraulic testing etc. complete

(excluding cost of reinforcement) with centering & shuttering/ deshuttering etc.

for all water retaining structures. b) R.C.C. slabs and platform

ITEM NO –8: Supplying cutting, bending, binding and placing in position steel as per plan

and design and as per ISS 2502 including cost of steel and binding wire for

reservoirs/structures. Dodeformed (TMT) bars confirming to relevant IS Fe-

500grade for all diameters.

This work shall consist of furnishing and placing coated, or uncoated or high strength

deformed reinforcement, bars (intentioned) of the shape and dimensions shown on the

drawings and conforming to these Specifications or as approved by the Engineer in

Reinforcements may be either T.M.T. tensile steel, high strength deformed bars.

They may be uncoated or coated with epoxy or with approved protective coatings

T.M.T. bars reinforcement for R C C work shall conform IS 432 (Part II) 1966 and

shall be of tested quality. It shall also comply with relevant part of IS 456-1966

All reinforcement shall be clean and free from dirt, paint, grease or oil, all scale

or loose or thick rust at the time of placing.

All steel shall be procured form original producers no re-rolled steel shall be

incorporated in the work.

Only new steel shall be delivered to the site every bar shall be inspected before

placing to its position and defective brittle or burnt bar shall be discarded cracked ends

of bars shall be discarded.

Distance between bars shall be as specified in drawings and as directed by the

Engineer in Charge all bars shall be placed at an accurate distance from each other and

shall be bind tightly to maintain the desired pitch Suitable means shall be provided for

holding bars securely in position

Mild steelbinding wire shall be of 1.63 mm or 1.22 mm (16-to-18-gauge diameter

and shall conform IS 280-1972

The use of black wire will be permitted for binding reinforcement bars. It shall be

free form free from dirt, paint, grease or oil, oil scale or loose or thick rust and any other

undesirable coating which may prevent adhesion of cement mortar at the time of

Only new binding wire shall be delivered to the site all binding wire shall be

inspected before binding to its position and defective brittle, rusted, used wire, shall be

PROTECTION OF REINFORCEMENT

Uncoated reinforcing steel shall be protected from rusting or chloride

contamination. Reinforcements shall be free from rust, mortar, loose mill scale, grease,

oil or paints. This may be ensured either by using reinforcement fresh from the factory

or thoroughly cleaning all reinforcement to remove rust using any suitable method such

as sand blasting, mechanical wire brushing, etc. as directed by the Engineer.

Reinforcements shall be stored on bricks, racks or platforms and above the ground in a

clean and dry condition and shall be suitably marked to facilitate inspection and

identification.

Portions of uncoated reinforcing steel and dowels projecting from concrete shall

be protected within one week after initial placing of concrete with a brush coat of neat

cement mixed with water to a consistency, of thick paint. This coating shall be removed

by lightly tapping with a hammer or other tool not more than one week before placing

of the adjacent pour of concrete. Coated reinforcing steel shall be protected against

damage to the coating. If the coating on the bars is damaged during transportation or

handling and cannot be repaired, the same shall be rejected.

The work shall consist of furnishing and placing reinforcement to the shape and

dimensions shown as on the drawings or as directed by The Engineer in charge.

Reinforcing steel shall conform accurate to the dimensions given in the bar

bending schedules shown on relevant drawing.

BENDING OF REINFORCEMENT

Bar bend g schedule shall be furnished by the Contractor and got approved by

the Engineer before start of work.

Reinforcing steel shall conform to the dimensions and shapes given in the

approved bar bending Schedules

Bars shall be bent cold to the specified shape and dimensions or directed by the

Engineer using a proper bar bender operated by hand power to obtain the correct

radius of bends and shape.

Bars shall not be bent or straightened in a manner that willdamageparent

material or the coating bars bent during transport or handling shall, be straightened

before beinng used on work and shall not be heated to facilitate straightening

PLACING OF REINFORCEMENT

The reinforcement cage should generally be fabricated in the yard at ground

level, and then shifted and placed in position. The reinforcement shall be placed strictly,

in accordance with the drawings and shall be assembled in position, only when

structure is otherwise ready for placing of concrete. Prolonged time gap, between

assembling of reinforcements and casting of concrete, which may result in rust formation

on the surface, shall not be permitted.

Reinforcement bars shall be placed accurately in positionas shown on the

drawings. The bars, crossing one another shall be tied together at every intersection with

binding wire (annealed), conforming to IS:280 to make the skeleton of the reinforcement

rigid such that the reinforcement does not get displaced during placing of concrete, or

any other operation. The diameter of binding wire shall not be less than 1 mm.

Bars shall be kept in position usually by the following methods:

In case of beam an slab construction, industrially produced polymer cover blocks

of thickness equal to the specified cover shall be placed between the bars and formwork

subject to Satisfactory evidence that the polymer composition is not harmful to concrete

and reinforcement. Cover blocks made of concrete may be permitted by the Engineer,

provided they have the same strength and specification as those of the member.

In case of dowels for Columns and walls the vertical reinforcement shall be kept

in position by means of timber templates with slots in them accurately, or with cover

blocks tied to the Reinforcement Timber templates shall be removed after the concreting

has progressed up to a level just below their location.

Layers of reinforcements shall be separated by spacer bars at approximately

One-meter intervals. The minimum diameter of spacer bars shall be 12 mm or: equal to

maximum size of main reinforcement or maximum size of coarse aggregate, whichever

is greater. Horizontal reinforcement shall not be, allowed to sag between supports.

Necessary stays, blocks, metal chairs, spacers, metal hangers supporting wires

etc, or other subsidiary, reinforcement shall be provided to fix the reinforcements firmly

in its correct position.

Use of pebbles, broken stone, metal pipe, brick, mortar or wooden blocks etc as

devices for positioning reinforcement shall not be permitted

Bars coated with epoxy or any other approved protective coating shall be placed

on supports that do not damage the coating. Supports shall be installed in a manner

such that planes of weakness are not created in hardened concrete. The coated

reinforcing steel shall be held in place by use of plastic- or plastic-coated binding wires

especially manufactured for the purpose.

Placing and fixing of reinforcement shall be inspected and approved by the

Engineer before concrete is deposited.

All reinforcement shall be furnished in full lengths as indicated on the drawing.

No splicing of bars, except where shown on the drawing; will be permitted without

approval of the Engineer. The lengths of the splice shall be as indicated on drawing or

as approved by the Engineer. Where practicable, overlapping bars shall not touch each

other, and shall be kept apart by 25 mm or 1 1 1/4 times the maximum size of coarse

aggregate, whichever is greater, If this is not feasible, overlapping bars shall be bound

with annealed steel binding wire, not less than 1 mm diameter and twisted tight in such a

manner as to maintain minimum clear cover to the reinforcement from the concrete

surface. Lapped splices shall be staggered or located at points, along the span where

stresses are low.

Splicing by welding of reinforcement will be permitted only if detailed on the

drawing or approved by the Engineer. Weld shall develop an ultimate strength equal to

or greater than that of the bars connected.

While welding may be permitted for T.M.T. reinforcing bars conforming to IS:432,

welding of deformed bars conforming to IS: 1786 shall in general be prohibited. Welding

may be permitted in case of bars of other than S 240 grade including special. Welding

grade of S 415 grade bars conforming to IS:1786, for which necessary chemical analysis

has been secured and the carbon equivalent (CE) calculated from the chemical

composition using the formula:

is 0.4 or less.

The method of welding shall conform to IS:2751 and IS:9417 and to any

supplemental specifications to the satisfaction of the Engineer.

Bars shall be bent cold to the specified shape and dimensions oras directed by

Engineer in charge using the proper bender tool, operated by hand or power to attain

proper radius of bends. Bars shall not be bend or straightened in a manner that will

injure the material. Bars bent during transport or handling shall be straightened before

being used in the work. Bars shall not be heated to facilate bending.

Unlessotherwise specified a 'U' type hook at the end of each bar shall invariably

be provided to main reinforcement. The radius of the bane shall not be less then twice

the diameter of the round bar and the length of the straight part of the bar beyond the

end of the curve shall be at least four times of the diameter of the round bar. In case of

bars which are not round and in case of deformed bars, the diameter shall be taken as

the diameter of circle having an equivalent effective area. The hooks shall be suitably

encased to prevent any spiting of the concrete

All reinforcement bars shall be accurately placed in exact position shown on the

drawings and shall be securely held in position during placing of concrete by annealed

binding wire not less than 1 mm in size and by using say blocks or metal chairs spacers,

metal hangers, supporting wires or other approved devices at sufficiently close intervals,

Bars shall not be allowed to sag between supports not displaced during concreting or

any other operations of the work All devices used for positioning shall be of not

corrodible material wooden and metal supports shall not extended to the surface of the

concrete, except where shown in drawings. Placing bars on layers of freshly laid

concrete as the work progresses for adjusting bar spacing shall not be allowed. Pieces

of broken stone or brick and wooden blocs shall not be used Layers of bars shall be

separated by spacer bars pre-cast mortar blocks or other approved devices.

Reinforcement after bending placed in position shall be maintained in a clean condition

until completely embedded in concrete, Special care shall be exercised to prevent any

displacement of reinforcement in concrete already placed. To prevent reinforcement

form corrosion, concrete cover shall be provided as indicated on drawings. All bars

protruding from concrete and to which other bars are to be sliced and which are likely to

be exposed for a period exceeding 10 days shall be protected by a thick coat of neat

Bars crossing each other where required shall be secured by binding wire

(annealed) of size not less than 1 mm in such a manner that they do not slip over at the

time of fixing and concreting

As far possible bars of full length shall be used in case this is not possible,

overlapping of bars shall be done as directed by the Engineer in charge When

practicable overlapping bars shall not touch each other, but be kept apart by 25 mm

Where no feasible overlapping bars shall be bound with annealed wires not less than

mm thick twisted tight The overlaps shall be staggered for different bars and located at

points along the span where neither sheer not bending moments is maximum.

Whenever indicated on drawing or desired the Engineer in charge bars shall

bejointed by coupling which shall have a cross section sufficient to transmit the full

stresses of bars The end of the bars that are jointed by coupling shall be upset for

sufficient length so that the effective cross section at the base of threads is not less than

the normal cross section of the bar. Threads shall be standards threads Steel for

coupling shall conform to IS

When permitted or specified on the drawings joints of reinforcement bars shall

butt-welded so as to transmit their full stresses Welded joints shall preferably be located

at points when steelwill not be subject to more than 75 percent of the maximum

permissible stresses and welds so staggered that at any one section not more than

percent of the rods are welded Only electric are welding using a process which excludes

air form the molten metal and conforms to any or other special provisions for the work

shall be accepted Suitable means shall be provided for holding bars securely in position

during welding It shall be ensured that no voids are left in welding and when welding is

done in two or three stages previous surface shall be cleaned properly Ends of bars

shall be cleaned of all loose scale rust stages paint and other foreign matter before

welding Only competent welders shall be employed on the work. The M S electrodes

used for welding shall conform IS 814 Welded pieces of reinforcement shall be tested.

Specimen shall be taken form the actual site and their number shall frequency to test

shall be as directed by the Engineer in charge

MODE OF MEASUREMENTS &PAYMENT

For the purpose of payment the bar shall be measured correct up to 10 mm

length and weight payableworks out at the rate specified below

Sr. Diameter of weight of steel per Sr. Diameter of weight of steel per

No steel running meter No steel running meter

1 6 mm 0.22 Kg/Rmt 8 20 mm 2.47 Kg/Rmt

2 8 mm 0.39 Kg/Rmt 9 22 mm 2.98 Kg/Rmt

3 10 mm 0.62 Kg/Rmt 10 25 mm 3.85 Kg/Rmt

4 12 mm 0.89 Kg/Rmt 11 28 mm 4.83 Kg/Rmt

5 14 mm 1.21 Kg/Rmt 12 32 mm 6.31 Kg/Rmt

6 16 mm 1.58 Kg/Rmt 13 36 mm 7.99 Kg/Rmt

7 18 mm 2.00 Kg/Rmt 14 40 mm 9.86 Kg/Rmt

Excess consumption over 5% willbe charged at penal rate.

Reinforcement shall be measured in length including hooks, if any, separately for

different diameters as actually used in work, excluding overlaps. From the length so

measured, the weight of reinforcement shall be calculated in tonnes on the basis of IS:

1732. Wastage, overlaps, couplings, welded joints, spacer bars, chairs, stays, hangers

and annealed steel wire or other methods for binding and placing shall not be measured

and cost of these items shall be deemed to be included in the rates for reinforcement.

The contractunitrate for coated/uncoated reinforcement shall cover the cost of

material, fabricating, transporting, storing, bending, placing, binding and fixing in

positionas shown on the drawings as per these specifications and as directed by the

Engineer, including all labour, equipment, supplies, incidentals, sampling, testing and

The unitRate for coated reinforcement shall be deemed to also includecost of all

material, labour, tools and plant, royalty, transportation and expertiserequired to carry

out the work. The rate shall also cover sampling, testing and supervision required for the

The rate shall befor a unit of M.T Kg.

ITEM NO –9: Providing and casting in situ C.C. in grade M-15 (approx. corresp. to prop.

1:2:4) (proportions as per mix design or as per Table 9 of IS456 2000 in

masses by weigh batching ) using granite, quartzite trap metal of size 6 mm

to 20 mm for RCC work, including scaffolding centering, form work, needle

vibrated consolidation, curing comp. up to 6 meter depth or height

(excluding cost of reinforcement and neat finishing) with centering and

shuttering/deshuttering etc. comp. for structure for other than water

retaining. Footing (With form work)

The work shall be executed as per specificationof Item No. 5 except the work is

for Providing and cast in situ C.C. in grade M-15 proportions of ingredients as per mix

design by weigh batching using granite, quartzite trap metal of size 12 mm to 20 mm

and or 6 mm to 12 or 6 mm to 12 mm mm including scaffolding centering formwork,

needle vibrated consolidation, curing and hydraulic testing etc. complete

(excluding cost of reinforcement) with centering & shuttering/ deshuttering etc.

for all water retaining structures. a) R.C.C. beams, lintels and bracket

ITEM NO –10: Supplying, cleaning, cutting, bending, welding, fabricating, erecting

structural steel in position irrespective of locations and levels as per drawing

including handling and transport etc. complete including applying two coats

of primer red oxide and two coats of approved quality of paint over it etc.

complete as directed for gentry girder, platform, stairs, chequered plate for

cable trench etc.

MATERIALS: STRUCTURAL STEEL

All structural steel shall be complied with the requirements of IS 226-1961 and structural steel work IS

1915-1962 specifications for structural steel.

Steel for Pins and Rollers

Rolled steel pins and rollers, shall comply with requirements of the IS specifications appropriate for the

work. Steel casting for cast steel pins shall conform to grade 1 or 3 of IS 1030-1956 specifications for

steel casting (for general engineering purposes as appropriate).

Mild steel for bolts and nuts when tested shall comply with IS 1608-1960 and shall have tensile strength

of not less than 2500 Kg/cm2. Plain washers shall be made of steel.

Welding Electrode

Mild steel electrodes shall comply with requirements of IS 814-1957 specification for covered electrodes

for metal arc welding of mild steel.

All work shall be in accordance with the drawings and shall satisfy IS specification No. 1915-1961. Care

shall be taken to ensure that all parts in assembly fit accurately together. Notes or specifications on the

drawings supplied by the Engineer-in-Charge/consulting Engineer, are to be constructed as superseding

or cancelling any clause of this specifications with which they conflict. On all drawings dimensions shown

in figures shall be acted in preference to measurement by scale.

All structural steel members and parts shall have straight edges. All straightening shaping and levelling

etc. shall be done by pressure only and not by hammering. All joggles and knees shall be formed by

pressure and where practicable in making these, the metal shall not be cut and welded.

All structural steel parts where required shall be sheared, cropped sawn or flame cut and ground

accurately to the required dimensions and shape.

The diameter of bolts holes shall be 1.5 to 2.0 mm. larger than the nominal diameter of bolt. All holes

for bolts shall be drilled unless permitted by Engineer-in-Charge for punching the holes. Care shall be

taken, such as surrounding material is not deformed or damaged in case of punching the hole is allowed.

Welding of steel conforming to relevant IS specifications shall be in accordance with general

requirements of metal arc welding. In additional to general requirement, the following care shall be

(a) The welding shall be positioned for downward welding wherever practicable.

(b) The welding current shall conform with respect of voltage and ampere to the recommendations of

the manufacturers of the electrode being used. The arc length, voltage and ampere shall be suited to

the thickness of material, type of groove and other circumstances of the work.

(c) The surface to be welded and surrounding material for a distance of at least 155 mm shall be free

from scale, dirt, grease, paint, heavy rust or other surface deposit.

(d) Members to be welded shall be held in correct position by holes, clamps, wedges, jigs or other

suitable devices or by tack welding until welding has been completed, such fastening as may be used

shall be adequate to ensure safety. Suitable allowance shall be made for war page and shrinkage.

(e) Tack welds located where the final welds will later be made shall be subject to the same quality

requirements as final welds. Defective and broken tack welds shall be removed before final welding.

(f) Fusion faces shall be made or cut by shearing, chipping, machining or by gas cutting.

(g) Exposed faces of welds shall be made reasonably smooth and regular so as to conform as closely as

practicable to design requirements and shall not be of less than the required cross section.

(h) Finished welds and adjacent parts shall be protected with clean boiled linseed oil after all slag has

Safety Precautions

(a) Operators of welding and cutting equipment shall be protected from the rays of the arc flame

gloves and by helmet, hand shields, or goggles equipped with suitable filter lenses.

(b) Closed space shall be ventilated properly while welding is being gone therein.

(c) Welders should be provided with such staging as will enable them to perform the welding

operation. For site welding shelter should be provided to protect welders and the parts to be

welded from the weather.

The Constructor shall employ a competent welding supervisor to ensure that the standard of

workmanship and the quality of materials comply with requirements laid in this specification.

The Constructor shall provide free access to the representative of Engineer-in- Charge/Consulting

Engineer to the work being carried out at all reasonable times and facilities shall be provided so that

during the course of welding he may be able to inspect any layer of weld metal. He shall be at liberty to

reject any material that does not conform to the terms of the specifications and to require any defective

welds to be cut out and welded. The representative of the Engineer-in-Charge/Consulting Engineer shall

be notified in advance of any welding operations.

Inspection and testing of welds shall be done as laid down in IS 822 and IS

No welder shall be employed in any position expect those who are fully qualified to welding.

Qualification for welders shall be as laid down in IS

All steel work intended to be bolted together must be in contact over the whole surface. Joints which

have to take compressive stress and the ends of all stiffeners shall meet truly over the whole of the

butting surface.

All member shall be so arranged that they can be accurately assembled, without being unduly packed,

strained or forced into position and when built shall be true and free from twist kinks, buckets or open

joints between component pieces. Work shall be kept properly bolted together and no drifting shall be

allowed except for the purpose of drawing assembled sections together in accuracies in matching of

holes may be corrected. But drifting to enlarge holes is prohibited. Failure in any of the above respect

will involve the rejection of defective members.

Mode of Measurement and Payment

Measurement of this item shall be as per IS 1200(Part VIII) - 1974 or as per its latest revision so far as

The contract rate shall be suitable for unit of one metric ton of structural steel.

ITEM NO –11: Grouting with 1:3 cement mortar for anchor bolt pockets machine bases,

pipe sleeves, pocket holes etc. including roughening and cleaning of concrete

surfaces curing etc.complete..

Grout shall be provided as specified on the drawings. The proportion of standard Grout shall be such as

to produce a flowable mixture consistent with minimum water content and shrinkage. Surface to be

grouted shall be thoroughly roughened and cleaned. All structural steel elements to be grouted, shall be

cleaned of oil, grease, dirt etc. The use of hot, strong caustic solution for this purpose will be permitted.

Prior to grouting, the hardened concrete shall be saturated with water and just before grouting water in

all pockets shall be removed. Grouting once started shall be done quickly and continuously. Variation in

grout mixes and procedures shall be permitted if approved by ENGINEER. The grout proportions shall be

limited as follows:

Sr. No. Use Grout Thickness Mix Proportions W / C Ratio (max.)

One part Portland cement to

1 Fluid Mix Under 25 mm

25 mm and over but less One part Portland cement to 2-

than 50 mm part sand

One part Portland cement to 3-

3 Stiff Mix 50 mm and over

Non-Shrink Grout

Non-shrink grout where called for in the Schedule of Quantities or specified on the drawings shall be

provided in strict accordance with the manufacturer’s instructions/ specifications on the drawings.

ITEM NO –12 Providing and applying with two coats 20 mm thick inside cement plaster with

OPC cement and water proofing agent on inside of inlet chamber, screen chamber, grit

chamber, wet well, consisting of 12 mm thick backing coat of C. M. 1:3 (1 cement : 3 sand)

and 8 mm thick finishing coat of C. M. 1:1 (1 cement: 1 sand) etc. complete including

necessary curing, scaffolding required if any etc. complete..

All joints in masonry shall be raked to a depth of 12 mm with a hooked tool made for the purpose when

the mortar is still green and in any case within 48 hours of its laying. The surface to be rendered shall be

washed with fresh clean water free from all dirt, loose plastering work is commended. Concrete surfaces

to be rendered will however be kept dry. The wall should not too wet but only damp at the time of

plastering. The damping shall be uniform to get uniform bond between the plaster and the wall. Cement

shall be sulphate resistance cement confirming to IS 12330 for underground work and in OPC for the

work above ground level.

The proportion if the mortar shall be as specified under the respective items of work. Cement shall be

mixed thoroughly in dry condition and then just enough water added to obtain a workable consistency.

The quality of water, sand and cement shall be as per IS: Standards. The mortar thus mixed shall be used

immediately and in no case shall the mortar be allowed to stand for more than 25 minutes after mixing

with water. Cement sulfates resistant cement conformity to IS: 12330 for underground work at OPC for

the work above ground low.

Curing of plaster shall be started as soon as the applied plaster has hardened enough so as not to be

damaged. The decision, as to when the plaster has hardened, will be given by the Engineer. Curing shall

be done by continuous applying water in a spray and shall carried out for at least 7 days.

Whenever the specifications or the item of work calls for water proofing, the Contractor shall provide

the percentage of water proofing compound as specified in the items of work.

Where lath plaster is specified, it shall be paid for at the same rate as for plasterwork without metal lath

except that separate payment for metal lath will be made.

Ceiling plaster shall be done before wall plaster and wall plaster shall commence at top and work

Interior plaster:

This plaster shall be laid in two coats of 12 and 8 mm for 20 mm and single coat for 15 mm & 10 mm

thickness. The mortar shall be dashed on the prepared surface with a trowel and finished smooth by

trowelling on the surface with neeru (lime cream). Neeru shall be properly slaked fat lime. The standard

of finish expected is high and shall conform to IS: 2394. Interior plaster shall be carried out on jambs,

lintel and sill faces, top and undersides etc. as shown in the drawing or as directed by the Engineer. Rate

quoted for plasterwork shall be deemed to include plastering of all those surfaces. However, if the item

of work includes plaster finish, no separate payment would be made under ‘plastering work’.

Exterior Plaster:

Exterior plasterwork shall be carried out in 2 layers. The first layer being 12 mm thick and the second

layer being 8 mm thick. The first layer shall be dashed against the prepared surface with a trowel to

obtain as even surface. The second layer shall then be applied and finished leaving as even and uniform

surface, trowel finished unless otherwise directed by the Engineer.

Exterior Sand Faced Plaster:

The plaster shall be applied in 2 coats. The first coat or the scratch coat should be approximately 12 mm

and shall be continuously carried be without break to the full length of wall or natural breaking points

such as doors, windows etc. The scratch coat shall be dashed on the prepared surface with heavy

pressure, brought to true and even surface and then lightly roughened by cross scratch lines, to provide

bond for the finishing coat. The mortar proportion for this scratch coat shall be as specified in the

respective item of work. The scratch coat shall be cured for at least 7 days and then allowed to dry.

The second coat shall be 8 mm thick and it shall not be applied until at least 10 days have elapsed after

the application of the scratch coat shall be evenly damped. This coat shall be applied from top to bottom

in one operation and without joints, finish shall be straight, true and even. The mortar proportions of

this coat shall be as specified under the respective item of work. Only approved white sand shall be used

for the second coat and for finishing work. Sand for finish shall be used for the second coat and for

finishing work. Sand for finish shall be even coarse size and shall be dashed on the surface and sponged.

Wherever 32 mm thick plaster has been specified, this is intended for purpose of providing beading,

bands etc. This work should be carried out in two or three layers and as directed by the Engineer.

In the case of pebble face finished plaster, pebbles of approved size and quality shall be dashed against

the final surface to obtain as far as possible uniform pattern. In all cases, workmanship shall conform to

ITEM NO –7: Providing and laying 50 mm thick cement concrete flooring in 1:2:4 (1

cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) including water

proofing compound finishing with a floating of neat cement etc. complete laid in one layer

finished including necessary curing with ordinary portlandcement at bottom of chambers..

If directed by the Engineer, the Contractor shall use approved waterproofing admixtures made

by reputed manufacturer in the mortar for plasterwork. The quantity to be used etc. shall be in

accordance with the manufacturer’s instructions subject however to the approval of the Engineer. These

admixtures shall not contain calcium chloride unless specifically allowed by Engineer and shall conform

to IS: 2645 with property of strong hydro phober and corrosion inhibitor. Dosage – 2% by weight of

cement i.e. 1 kg per 50 kg bag of cement. Manufacturer must comply ISO – 9002 specifications. Payment

shall be made for actual quantity of such admixture used unless it is already covered in the rates for the

work concerned.

MOSAIC, TERRAZZO AND PLAIN CEMENT TILING WORK IN FLOORING

The type, quantity, size, thickness, color etc. of the tiles for flooring and skirting work shall be of best

quality approved by the Engineer. For this purpose, the Contractor shall provide the Engineer with

necessary samples for his selection.

Before the tiling work of commenced, the sub-surface shall be thoroughly cleaned and washed of all

loose materials, dirt and scum or laitance and then well wetted without forming water pools on the

The tiles shall be laid on cement mortar bedding of about 20 to 25 mm thick. The proportion of mortar

shall be one part of cement, 6 parts of sand. The mortar shall be evenly spread on the sub-floor. The

tiles shall be fixed on this bed one after another, each tile being gently tapped with a wooden mallet till

it is properly bedded and in level with the adjoining tiles. The joints shall be perfectly straight and

uniform in thickness. The tiles shall be laid perfectly in level unless otherwise specified or required or

desired by the Engineer. After laying the tiles the joints shall be finished with white cement or cement of

approved color.

Floor tiles laid adjoining the wall shall project 12 mm under the plaster, starting or dado as may be

required by the Engineer. Half tiles and pieces shall not be avoided as far as possible. After laying, the

flooring shall be allowed to cure undisturbed for seven days. Design traffic shall not be allowed on the

floor for at least 14 days after laying the tiles.

About a week after laying the tiles, each and every tile shall be lightly tapped with a small wooden

mallet to find out if it gives a hollow sound; if it does, such tiles along with any other cracked or broken

tiles shall be removed and replaced with a new tile proper line and level. The same procedure shall be

followed again after the tiles are finally polished. For the purpose of ensuring that such replaced tiles

match with those earlier laid, it is necessary that the Contractor order enough extra tiles from the

factory to meet this contingency. The tiles shall finally be cleaned and polished by using dilute oxalic acid

or any other method recommended by the manufacturer and approved by the Engineer.

After the joints have developed sufficient strength, the floors shall be machine polished to the desired

finish as approved by the Engineer. Sufficient quantity of water shall always be used during polishing to

prevent scratching.

For dado and skirting work, the vertical surface shall be thoroughly cleaned and wetted. Thereafter it

shall be evenly and uniformly covered with about 12 mm thick 1:2 cement mortar. For this work the tiles

as obtained from the factory shall be of the size required and practically fully polished. The back of each

tile to be fixed shall be covered with a thin layer of near cement paste and the tile shall then be gently

tapped against the wall with a wooden mallet. This shall be done from the bottom off the surface

upwards. The joints shall be as close as possible and the work shall be truly vertical and flush. After the

work has set, hand polishing with carborandum stones shall be done so that the surface attains a high

glossy finish. Corners and junctions shall be finished true. The workmanship shall conform to IS:

The work is subject to the approval of the Engineer. If the Engineer rejects any portion of the work, the

same shall be removed and redone by the Contractor to the satisfaction of the Engineer at no extra cost

The procedure for laying and finishing cement tiles in floor and dado shall be as for mosaic tiles except

that in this case the tiles shall be cement tiles instead of mosaic / terrazzo tiles.

 Unit of measurement for floor tiling, and dado shall be sq.m. or part thereof of the superficial

area. Actual quantity of tiling work carried out will be measured and paid for after making

deductions for openings etc. For skirting, unit of measurement shall be running meter for the

specified width

ITEM NO –15: Wall painting (two coats) with plastic emulsion paint of approved brand and

manufacture of undercoated wall surface to give an even shade including

thoroughly brushing the surface free from mortar dropings and other

foreign matter and sand papered smooth.

Water shall beconform M-1. The plastic emulsion shall conform to I.S.: 5411-

The painting work shall beforsubsequent coat of plastic emulsion paint of

approved brand& manufactures on undecorated wall surfaces to give an even shade as

Wherever scaffolding is necessary it shall be erected in such a way that as far as

possible on part of scaffolding shall rest against the surface to be wall painted. A

properly secured strong and well tied suspended platform (Zoola) may be used for white

washing. Where ladders are used pieces of old gunny bags shall be tied at top and

bottom to prevent scratches to the floors and walls. For wall painted of ceilings, proper

stage scaffolding shall be erected where necessary.

 Preparation of surface:

The undecorated surface to be painted shall be thoroughly brushed from dust,

dirt, grease, mortar dropping and other foreignmatter and sand papered smooth. New

plaster surface shall be allowed to dry for at least 2 months before applications of plastic

All unnecessary nails shall be removed. Pitting in plaster shall be made good

with plaster again with a finegrade sand paper and made smooth. A coat of plastic paint

shall be applied over the patches. The surface shall beallowed to dry thoroughly before

the regular coat of paint is allowed. The surface affected by moulds, moss,fungi, algae

lichens, efflorescence etc. shall be treated in accordance with I.S; 2395 (Part 01)

Before applying paint, any unevenness shall be made good by applying putty made of

plaster of paris mixed with water onentire surface including filling up the undulation and

then sand papering the same after it is dry.

 Preparation of Mix :

This shall be done as per manufacture's instructions. The thinning of emulsion is

to be done with water and not with turpentine. The quantity of thinner to be added shall

be as per manufacturer instructions.

 Application :

Before pouring into small containers for use, the paint shall be stirred thoroughly

in item container. When applying also, the paint shall be continuously stirred in the

smaller container, so that its consistency is kept uniform.

The paint shall be laid on evenly and smoothly by means of crossing and laying

off the crossing andconsist of covering the area over with paint, brushing the surface

hard for the first time over and then, brushingalternately in opposite direction two or

three times and then finally brushing lightly in direction at right angles to thesame. In this

process, no brush Marks shall be left after the laying off is finished. No hair marks from

the brush orclogging of paint puddles in the corners of panels, angles of moldings, etc.

shall be left on the work. The fullprocess of crossing and laying off will constitute one

The paint shall be applied with brush or rollers. For undecorated surfaces, the

surface shall be treated withminimum two coats of cement water proofing paint. The

second or subsequent coat shall notbe started until the proceeding coat as become

sufficiently hard to resist marking by brushing being used.

The surface on finishing shall present a flat velvety smooth finish. It shall be even

and uniform in shadewithout patches, brush marks, paint drops etc.

 Precautions :

(a) Old brushes if they are to be used with emulsion paints, shall be completely dried of

turpentine or oil paint by washing in warm soap water. Brushes shall be quickly washed

in water immediately after use and kept immersed in water fusing break periods to

prevent the paint from hardening on the brush.

(b) In the preparation of wall for plastic emulsion painting, no oil base petals shall be

used in filling cracks, holes etc.

(c) Splashes on floors etc. shall be cleaned out without delay as they will be difficult to

remove after hardening.

(d) Washing or surfaces treated with emulsion paint shall not be done within 3 to

weeks of application.

 Protective measures :

The surface of doors, windows, floors, articles, of furniture etc. and such other

parts of the building not to be white washed shall be protected from being splashed

upon. Such surfaces shall be cleaned of paint splashed if any.

 Mode of measurements and payment

All the work shall be measured in the decimal system as under:

(a) Dimensions shall be measured to the nearest 0.01 m.

(b) Area in individual item shall be worked out to the nearest 0.01 sq.m.

All the work shall be measured in sq. mt. Deductions for jambs, soffits, sills etc.

for openings not exceeding 0.5 sq. mt. each in area, for ends of joists, posts, beams,

girders, steps etc. not exceeding 0.5 sq mt. each in area and for openings exceeding

sq. mt. and not exceeding 3.0. sq. mt. each in area, deductions and additions shall be

No deductions shall be made for ends of joists, beams, posts, etc. and openings

not exceeding 0.5 sq mt.each. No addition shall be made for reveals, jambs, soffits, sills

etc. of these openings not for finish around ends ofjoints, beams, posts etc.

No deductions for openings exceeding 0.5 sq.mt. but not exceeding 3 sq. mt.

each shall be made asfollows and no addition will be made for reveals, jambs, soffits etc.

of these openings :

(a) When both the faces of walls are provided with finish, deduction shall be made for

(b) When each face of wall is provided with different finish, deduction shall be made for

that side of frame fordoor, windows, etc. on which width of reveals is less than that of the

other side. Where width of reveals on bothfaces of wall are equal, deduction of .50% of

area of opening on each face shall be made from total area of finish.

(c) When only one face of wall is treated and the other face is not treated, full deduction

shall be made if thewidth of reveal on the treated side is less than that on the untreated

side, but if the width of the reveal is equal ormore than on the untreated side neither

deductions nor additions to be made for reveals, jambs, soffits, sills etc.

In case of area of openings exceeding 3 sq. mt. each, deductions shall be made

for openings but jambs,soffits, sills shall be measured.

No deductions shall be made for attachment such as casing, conducts, pipe,

electric wiring and the like.

Corrugated surfaces shall be measured flat as fixed and not girth. The quantities

so measured shall beincreased by the following percentage and the resultant shall be

included with the general areas:

(a) Corrugated steel sheets……………………………………… 14%

(b) Corrugated A.C. sheets………………………………………. 20%

(c) Semi corrugated A.C. Sheets……………………………….. 10%

(d) Nainital pattern roof (Plain sheeting sheets)……………….. 10%

(e) Naintial pattern roof (with corrugated sheets)……………… 25%

Cornices and other wall features, when they are not picked out in a different

finish/colour shall be girthedand included in the general area.

Extra payment shall be done on ceiling and sloping roofs.

The rate shall include the cost of ail materials, labour, scaffolding, protective

measures etc. involved in allthe operations described above.

The rate shall be for a unit of One sq. meter.

ITEM NO –16: Providing and fixing water tight construction or expansion joints 150 mm.

dia. Widethin ribbed PVC.

PVC (Vinyl) asbestos floor tiles shall have smooth surface and shall be homogenous. The tiles

shall be of best quality and of approved make and shall conform to IS:3461. The tiles shall be

plain or mottled. The color, finish and mottling shall match as per the sample approved by

Engineer. Plain tiles shall have the color uniformity distributed through the tile. Mottled tiles

shall have the colors distributed at random throughout the thickness of the tile. The material

shall not develop any toxic effect in service and shall not give disagreeable odor. The type,

thickness and size of tiles shall be as specified in the item of work. The PVC (Vinyl) asbestos floor

tiles when tested in accordance with the methods given in IS: 3464 shall conform to the

requirements specified in Table 1 of IS: 3461. The Contractor shall send test results along with

the sample for approval. The tiles used shall be of Marbles or approved equivalent and shall be

fixed on floor/walls as per the manufacturer’s specification.

 ITEM NO –17: Brick work using common burnt clay building bricks having crushing

strength not less than 35kg / Sq. C. M. in ramp, steps and Foundation & Plinth in

cement morter1:6 (1 cement : 6 coarse sand) including racking out joints,

curing,scaffolding required if any etc. complete, as directed

Bricks shall conform to M-15. Cement mortar shall conform to M-11.

The proportion of the cement mortar shall be 1:6 (1 cement : 6 fine sand) by

 Wetting of bricks:

The bricks requiredfor masonry shall be thoroughly wetted with clean water for

about two hours before use or as directed. The cessation of bubbles, when the bricks

are wetted with water is as indication of through wetting of bricks.

Bricks shall be laid in English bond unless directed otherwise. Half or cut bricks

shall not be used except when necessary to complete to bond; closures in such case

shall be cut to requiredsize and used near the ends of walls.

A layer of mortar shall bespread on full width for suitable length of the lower

course. Each brick shall first be property bedded and set home by gently tapping with

handle of trowel or wooden mallet. Its inside face shall be flushed with mortar before the

next brick is laid and pressed against it. On completion of course, the vertical joints shall

be fully filled from the top with mortar.

The walls shall be taken up truly in plumb. All courses shall be laid truly

horizontal and all vertical joint shall be truly vertical. Vertical joints in alternate course

shall generally be directly one over the other. The thickness of brick course shall be kept

The brick shall be laid with frog up wards. A set of tools comprising of wooden

straight edges, mason's spirit level, square half meter rub, and pins, string and plumb

shall be kept on the site of work for frequent checking during the progress of work.

Both the faces of walls of thickness greater than 23 cms. shall be kept in proper

place. All the connected brick work shall be kept not more than one meter over the rest

of the work. Where this is not possible, the work shall be raked back according to bond

(and not left toothed) at an angle not steeper than 45 degrees.

All futures, pipes, outlets of water, hold fasts of doors and windows etc. which are

required to be built in wall shall be embedded in cement mortar.

Bricks shall be so laid that all joints are quite flush with mortar. Thickness of

joints shall not exposed 12 mm. The face joints shall be raked out as directed by raking

tools daily during the progress of work, when the mortar is still green so as to provide

key for plaster or pointing to done.

The face of brick shall be cleaned the very day on which the work is laid and all

mortar dropping removed.

Green work shall be protected from rain suitably. Masonry work shall be kept

moist on all the faces for a period of seven days. The top of masonry work shall be kept

well wetted at the close of the day.

 Preparation of foundation bed:

If the foundation is to be laid directly on the excavated bed, it shall be leveled,

cleared of all loose materials, cleaned and wetted before stating masonry, If masonry is

to be laid on concrete footing, the top of concrete shall be cleaned and moistened. The

contractor shall obtain the engineer's approval for the foundation bed before foundation

masonry is started. When pucca flooring is to be provided flush with the top to plinth, the

inside plinth offset shall be kept lower than the outside plinth top by the thickness of the

The frames of doors, windows, cupboards etc. shall be housed into the brick

work at the correct location and level as directed. The heavy steel doors, window frames

etc. shall be built in with work, but for ordinary steel doors and windows required opening

for frames, hold-fasts, etc., shall be in the wall and frame embedded later on in order to

avoid damage to the frames.

Necessary scaffolding shall be provided. The supports of the scaffolding shall be

sound and strong tied, together with horizontal pieces over which the scaffolding plunks

shall be fixed. Simple scaffolding shall be allowed normally. In this case scaffolding hole

shall rest in hole header horizontal coarse only. Minimum number of holes be left in brick

work for supporting horizontal scaffolding poles. The contractor is responsible for

providing and maintaining sufficiently strong scaffolding so as to withstand all loads likely

to come upon it.

For the face of brick work, where plastering is to be done, joints shall be racked

out to a depth not less than thickness of joints. The face of brick work shall be cleaned

and mortar dropping removed on very same day that brick work is laid.

 Mode of measurements & payment

The masonry work of G.F. shall be measured and paidunder this itemrate

includes cost of all materials & labour.

Brick work in parapet shall be included in the corresponding masonry item of

floor immediately below the floor above which the parapet is built.

No deduction shall be made from quantity of brick work nor any extra payment

made for embedding in masonry of marking holes in respect of following item.

Ends of joints, beams, posts, girders, rafters, purlins trusses corbel, steps, etc.

where cross sectional area does not exceed 500 sq.cm.

Opening not exceed in 1000 sq.cm.

Wall plate sand bed plates bearing of slab, chhajjas, and like whose thickness

does not exceed 10 cms. and the bearing does not extend the full thickness of wall.

Drainage holes and recesses for cement concrete blocks to embed hold fasts for

doors, window etc.

Iron fixtures, pipes up to 300 mm. dia. hold fasts of doors, and window built into

masonry and pipes etc. for concealed wiring.

Forming charges of section not exceeding 350 sq.cm. in masonry.

Apparatuses for fire places shall not be deducted nor shall extralabourrequired to

make splaying of jumps, throating and making trenches over the aperture be paid for

The rate shall befor a unit of one cubic meter

ITEM NO –21: Filling with available excavated earth (excluding rock) in trenches, plinth,

sides of foundation in layers not exceeding 20 cm in depth consolidating each

deposited layer by ramming and watering..

The earth to be used for filling shall be free from salts, organic or other

foreignmatter all clots of earth shall be broken.

As soon as the work in foundation has been completed and measured the site of

foundation shall be cleared of all debris brick bats mortar dropping etc. and filled with

earth in layers not exceeding 20 cms. each layer shall be adequately watered, rammed

and consolidated before the succeeding layer is laid. The earth shall be rammed with

iron rammers where feasible and with the ends of crow-bars, where rammer cannot be

The plinth shall be similarly filled with earth in layers not exceeding

cmsadequately watered and consolidated by ramming with iron or wooden rammers.

When filling reaches finished level the surface shall be flooded with water for at least

hours and allowed to dry and then rammed and consolidated.

The finished level of filling shall be kept to shape intended to be given to floor.

In case of large heavy duty flooring like factory flooring, the consolidation may be

done by power rollers, where so specified. The extent of consolidation required shall

also be as specified.

 Mode of Measurements & Payment

The payment shall be made for filling in plinth and trenches. No deduction shall

be made for shrinkage or voids, if consolidatedas instructed above.

The rate shall befor a unit of one cubic meter.

ITEM NO –22: Dewatering by pumping set of required capacity includlng temporary

plaltformcarting pumping at site and fixing the same in position including all

accessories and fuel and labour etc. complete.

Contractor should take into account the subsoil and ground water conditions, which may be

encountered, particularly the running sand conditions at work site and shall adequately allow for shoring

/ strutting and dewatering by pumping.

Drainage channels and sumps shall be provided in the pit to drain all surface and ground water by

pumping. Contractor shall dewater and maintain excavated pits dry at all times by use of dewatering

sump pumps including ancillary equipment for the construction of substructure SPS during actual

excavation; laying PCC and RCC, inspection, testing and backfilling etc. or as directed by Engineer at the

site where inflow of ground water in the opinion of Engineer Obstructs the progress of work, leads to

insanitary conditions by stagnation, retards the speed of construction, is detrimental to the safety of

workers, materials, structure, equipment and such other causes. The ground water level shall be

lowered well below the founding level to provide dry firm working conditions and to prevent sand

boiling or bottom heave with consequent loss of bearing capacity. Heavy pumping in excavation which

may result in removal of fine material from soil shall be avoided. Contractor shall ensure that there is no

damage to existing adjoining structures due to dewatering operations. Contractor shall also make

necessary arrangements for the disposal of drained water to nearby storm water drain or nullah if

allowed by Engineer or up to a lead of 100 m from excavated trench / pit as directed by Engineer. In no

case removal of water shall be allowed to spread over the adjoining area.

Contractor shall exercise his own judgement regarding the extent of pumping required and approximate

size of dewatering pumps as other facilities required to keep the excavation dry. Contractor shall submit

his scheme and also indicate sequence of operation, limits of excavation and the capacity and other

details of the equipment and accessories he intends to use for dewatering during the construction and

the number, capacity and location of pumps etc. The Contractors shall bring to site only such equipment

and accessories, which are approved by Engineer in writing. The contractor shall provide adequate

standby arrangement for pumping in case of electric power failure / mechanical failure.

No separate payment whatsoever shall be made for dewatering if required to be done during

excavation, laying PCC and construction of RC substructure up to the plinth level, laying and jointing of

pipes, construction of manholes, inspection, testing and backfilling etc. and Contractor should quote

ITEM NO –24: Distempering in 3 coats with oil bound distemper of approved brand and

manufacture and of required shade on wall surface to give an even shade over

and including a primer coat with distemper primer of approved brand,

thoroughly brushing the surface free from mortar dropping and other foreign

material and also inclusive of preparing the surface even and smooth etc.

complete, as directed

Oil bound washable distemper and primer shall be of approved brand and

manufacture. The distempershall be of requiredcolour and shade and the same shall

conform to I.S. : 428-1969. The shade shall be approved by Engineer in charge.

The distempering shall be carried out on wall surfaces to give an even shade.

Where scaffolding is required, it shall be erected in such a way that as far as

possible no pail of scaffolding shallrest against the surface to be distempered. A properly

secured and well tied suspended platform (Joola) may beused for distempering. Where

ladders are used, pieces of old gunny bags shall be tied at top and bottom to

preventscratches to the walls and floors. For distempering to ceiling, proper stage

scaffolding shall be erected wherenecessary.

 Preparation of surface :

The undecorated surface to be distempered shall be thoroughly brushed from

dust, dirt, grease, mortar dropping and other foreignmatter and sand papered smooth.

New plaster surface shall be allowed to dry for at least 2 months before applications of

All unnecessary nails shall be removed. Pitting in plaster shall be made good

with plaster again with a finegrade sand paper and made smooth. A coat of distemper

shall be applied over the patches. The surface shall beallowed to dry thoroughly before

the regular coat of distemper is allowed. The surface affected by moulds, moss,fungi,

algae lichens, efflorescence etc. shall be treated in accordance with I.S; 2395 (Part 01)

1966. Before applyingdistempering, any unevenness shall be made good by applying

putty made of plaster of pairs mixed with water onentire surface including filling up the

undulation and then sand papering the same after it is dry.

 Priming coat :

A priming coat of distemper primer of approved manufacture and shade shall be

applied over thepapered surface in case of new work on undecorated surface. If the

distemper priming is done after the wall surfacedries completely, the distemper primer

shall be applied.

Application of primer shall be done as under: The primer shall be applied with a

brush on the clean dry andsmooth surface. Horizontal strokes shall be given first and

vertical strokes shall be applied immediatelyafterwards.This entire operationwill

constitute on coat. The surface shall be finished as uniformly as possible leaving no

brushmarks. It shall be allowed to dry for at least 48 hours before oil bound distemper or

paint is applied.

Oil bound distemper is not recommended to be applied within six months of the

completion of wallplaster

 Preparation of oil bound distemper :

The distemper shall be diluted with water or any other prescribed thinner in a

manner recommended by the manufacturer only. Sufficient quantity of distemper

requiredfor a dayswork shall be prepared.

 Application of Distemper coat:

For undecorated surfaces, after the primer coat is dried for at least 48 hours, the

surface shall be lightly sand papered to make it smooth for receiving the distemper,

taking care not to rub out priming coat. All loose particles shall be dusted of after

rubbing. Minimumtow coats of distemper shall be applied with brushes in horizontal

strokes followed immediately by vertical strokes which together shall constitute one coat.

The subsequent coats shall be applied after a time interval of at least 24 hours between

consecutive coats to permit proper drying of the proceeding coat. The finished surface

shall be even and inform without patches, brush marks, distemper drops etc.

Sufficient quantity of distemper shall be mixed to finish one room at a time. The

application of a coat ineach room shall be finished in one operation and no work shall be

striated in any room which cannot be completedon the same day.

15 cm. double bristled distemper brush shall be used. After day's work brushes

shall be thoroughly washedin hot water with soap solution and hung down to dry. Old

brushes which are dirty and caked with distemper shallnot be used on the work.

 Protective measurements:

The surfaces of doors, windows, floors, articles of furniture etc. and such other

parts of the buildings as are not to be distempered shall be protected form being

splashed upon. Such surfaces shall be cleaned of distemper splashes if any.

 Mode of measurements and payment

Priming coat of distemper primer, scraping of surface spoiled by struck roots,

removal of oil and grease spots, treatment for infraction of effloresces., mould moss,

fungi, algae and Kitchen and patch repairs to plaster shall be included in this item for

which nothing extra shall be paid.

All the work shall be measured net in the decimal system as in place subject to

the following limits unlessotherwise stated hereinafter:

(a) Dimensions shall be measured to the nearest 0.01 m.

(b) Area in individual items shall be worked out to the nearest 0.01 sq. m. All work shall

be made for ends ofjoints, beams, posts etc., and openings, not exceeding 0.5 sq.mt.

each and no addition shall be made for reveals,jambs, soffits, sills etc. of these openings

not for finish around ends of joints, beams, posts etc.

Deductions of opening exceeding 0.5 sq.m. but not exceeding 3 sq. m. each shall

be made as follows andnet addition shall be made for reveals, jambs, soffits etc. of these

(a) When both the faces of wall are provided with same finish, deductions shall

be made for one face only.

(b) When each face of wall is provided with different finish, deduction shall be

made for that side of frame fordoors, windows etc. on which width of reveals is less than

that of the other side but no deduction shall be made onthe other side. Where the width

of reveals on the both the fates of wall are equal, deduction of 50% of area ofopening on

each face shall be made from area of finish.

(c) When only one face of wall is treated and the other face is not treated, full

deductions shall be made if thewidth of the reveal on treated side is less than that on

untreated side but if the width of the reveal is equal or morethan that on untreated side

neither deductions nor additions to be made for reveals, jambs, soffits, sills etc.

In case of opening of area exceeding 3 sq. m. each deduction shall be made for

openings but jambs, sillsand soffits shall be measured.

No deductions shall be made for attachments such as casings, conduits, pipes,

electric wiring and the like.

Item includes removing nails, making good holes, patches with materials similar

in composition ofdistemper.

The extra rate shall be paid for carrying our distempering work on ceiling/sloping

roofs over and above.

The rate includes cost of ail materials, labours, scaffolding, protective measures

etc. involved in all theoperations described above. This shall also include conveyance,

delivery, handing, unloading, storing work etc

The rate shall be for a unit of one sq. meter

ITEM NO –25&26: Applying two coats of Birla(white cement based) or Asian (acryliclapy

putty) or equivalent & two coats of primer of approved brand and manufacture

on new wall surface to give an even shade including thoroughly brushing the

surface free from mortar dropping and other foreign matte rand sand papered

ITEM NO –26: Providing and fixing iron doors including using the frames of channels, angles

and flatsand MSsheetsasperdrawingincludingrevating orwelding andfixing in

concrete block including iron fixture and fastening with one coat of primer and

3coats of enamel paint etc. complete.

The structural steel shall conform to M-22

The M.S. Grill shall be prepared as per the drawing or as directed for fixing to

wall frames of windows etc.

The grill shall be fabricated to the designs and patterns shown in the drawings

and the weight shall be asdirected, and the joints shall be reverted or welded as shown

in the plan or as directed. The grill so formed shall befixed into the frames of the

windows etc. before they are erected in position. The outside strip frame of the grill shall

behoused to its full thickness into the recess cut into the frame of the windows etc. The

grill shall be fixed to the framewith number of bolts and nuts or screws viz. bolt nut/screw

per 30 cm. of the length of outer strip subject to minimumof 2 Nos. on each side of the

frame oras indicated in the drawing or as directed.

The bolts and nuts or screws shall be counter sunk and shall be fixed with the top

of their heads flush with theface of the frame strips.

 Applying primer coat

The enamel paint shall conform to M-44 B.

The materials requiredforwork of painting work shall be obtained directly from

approvedmanufactures or approved dealer and brought to the site in maker's drums;

keng. etc. with seal unbroken.

All materials not in actual use shall be kept properly protected, lids of containers

shall be kept closed andsurface of paint in open or partially open containers covered

with a thin layer of turpentine to prevent formation ofskin. The materials which have

become state or flat due to improper and long storage shall not be used. The paintshall

be stirred thoroughly in its container before pouring into small containers. While applying

also, the paint shallbe continuously stirred in smaller container. No left over paint shall

be put back into stock tins. When not in use thecontainers shall be kept properly closed.

If for any reasons, things is necessary, the brand of thinner recommended by the

manufacturer shall beused.

The surface to be painted shall be thoroughly cleaned and dusted. All rust, dirt

and grease shall bethoroughly removed before painting is started. No painting on

exterior or other exposed part o the work shall becarried out in wet, damp or otherwise

unfavorable weather and all the surfaces shall be thoroughly dry beforepainting work is

Application of paint:

Brushing operations are to be adjusted to the spreading capacity advised by the

manufacture of particularpaint. The paint shall be applied evenly and smoothly by means

of crossing and laying off. The crossing and layingoff consists of covering the area over

with paint, brushing the surface hard for the first time over and then brushingalternately

in opposite directions two or three times and then finally brushing lightly in a direction at

right angles tothe same. In this process, no brush marks shall be left after the laying off

is finished. The full process of crossingand laying off will constitute one coat.

Each coat shall be allowed to dry completely and lightly rubbed with very fine

grade of sand-paper andloose particles brushed off before next coat is applied. Each

coat shall vary slightly in shade and shall be gotapproved from Engineer-in-charge

before next coat is started.

Each coat the last shall be lightly rubbed down with sand paper of fine pumice

stone and cleaned of dustbefore the next coat is applied. No hair marks from the brush

of clogging of paint puddles in the corners of panels,angles of moldings etc. shall be left

Special care shall be taken while painting over bolts, nuts, rivets, overlaps etc.

Approved best qualitybrushes shall be used.

Mode of measurements and payment

The new steel and other metal surface shall be measured under this item.

All the work shall be measured net in the decimal system, as executed subject to

the following limits unlessotherwise stated hereinafter.

(a) Dimensions shall be measured to the nearest 0.01 meter.

(b) Areas shall be worked out to the nearest 0.01 sq. meter.

No deductions shall be made for openings not exceeding 0.5 sq. mt. each and no

addition shall be madefor painting to beddings, moldings, edges, jambs, soffits, sills etc.

of such opening.

In case of fabricated structural steel and iron work, priming coat of paint shall

beincluded withfrabation. In case of trusses if measured in sq. m. compound girders,

stanchions, lattices, grader and similar work,actual area shall be measured in sq. m. and

no extra shall be paidfor painting on bolts heads, nuts, washers etc.No addition shall be

made to the weight calculated for the purpose of measurements of steel and iron works

forpaint applied on shop or at site.

The different surfaces shall be grouped into one general item, areas of uneven

surfaces being convertedinto equivalent plain areas in accordance with the table given

as per Annexure-ll for payment.

No payment shall be made for weight of screws, bolts nuts etc. only weight of grill

The rate shall befor a unit of one kg.

ITEM NO –27: Providing and fixing window having extruded aluminum Colour anodized

section frame main outer size 95mm x 24mm x 1.17 mm (of Jindal Section no :

2459 @ wt. of 0.738 Kg/mt), horizontal Three track member size 92mm x

mm x 1.30 mm (of Jindal Section no. 8688, @ Wt. 1.07 Kg/mt), vertical member

of size 92mm x31.75mm x 1.50 mm (of Jindal Section no. 8933, @ Wt.

Kg/mt.) with sliding shutters of horizontal member size 40mm x 18mm x .29

mm (of Jindal section no. 8947 @ wt. 0.456 Kg/mt.) vertical member of size

40mm x 18mm x 1.29mm (of Jindal Section no. 8949 @ wt. of 0.456 Kg/mt with

5 mm thick transparent bronze colour tinted float glass with powder coated

aluminum fittings and fixtures and transparent silicon sealant glass fixing to

frame as per details etc.

Standard extruded anodized aluminum windows & ventilators allows used in the

manufacture of extruded section shall confirm to I.S. designation HEA - WP of IS 733 -

1975 and also designation WVG - WP of IS 1285 - 1975 section shall beas specified in

the drawing a design or as directed by Engineer-in-charge. All section shall be free from

scratches holes or any damages on surface. All section shall have finished plaster

surface on all sides.

The size of aluminum Colour anodized section frame main outer size 95mm x

24mm x 1.17 mm (of Jindal Section no : 2459 @ wt. of 0.738 Kg/mt), horizontal Three

track member size 92mm x 31.75 mm x 1.30 mm (of Jindal Section no. 8688, @ Wt.

1.07 Kg/mt), vertical member of size 92mm x 31.75mm x 1.50 mm (of Jindal Section no.

8933, @ Wt. 1.06 Kg/mt.) with sliding shutters of horizontal member size 40mm x 18mm

x .29 mm (of Jindal section no. 8947 @ wt. 0.456 Kg/mt.) vertical member of size 40mm

x 18mm x 1.29mm (of Jindal Section no. 8949 @ wt. of 0.456 Kg/mt with 5 mm thick

transparent bronze colour tinted float glass with powder coated aluminum fittings and

fixtures and transparent silicon sealant glass fixing to frame as per detailsas directed by

Engineer in charge.

Acrylic sheet :The transparent acrylic sheetof louvers fixed to alluminium strip

bladeshall be of approved make having thickness of 5mm. The acrylic sheetshall be

clear and free from scratches and cracks. The acrylic sheetshall be provided on wall

panel and fixed with transparent silicon gasket.

The acrylic sheetshall be of the brief quality, free from specks, bubbles, smoken

veins, air holes distress and other defects. The kind of acrylic sheetto be used shall be

asmentioned in the itemor as shown in detailed drawing or as directed by Engineer-in-

Glazing clips: Glazing clips shall be colour marble jambs all around the ventilator shall

be free from any scratches or holes or any damage of on surface all section shall have

finished luster surface on all sides.

Rubber Gasket : Rubber gasket shall be approved make shall be free from any

scratches or holes or any damage on surface and shall have finished luster surface on

Fixtures: Hinges shall be of approved make shall be free from any scratches or holes or

any damage on surface and shall have finished luster surface on all sides.

The work of standardcolour anodized alluminium windows & ventilators shall be

done with extreme finishing. The inclined blades shall be fixed as directed by Engineer-

in-charge. 5 mm thick transparent acrylic sheet shall be fixed on blades.

Product is from reputed company having ISO 9001-2000 certificate and with

three years performance guarantee.

 MODE OF MEASUREMENT& PAYMENT

The unitrate of standardcolour anodized aluminum windows & ventilators shall

include the cost of all labours, materials, anodizing charges, tools, plants, cost of

necessary fixtures & fastenings.

The rate shall befor a unit of one square meter

ITEM NO –28: Providing & fixing in position aluminium grill with 15 micron natural matt brush

finish anodised as per over all size and aluminium sections of approved make

conforming to IS:733 and IS : 1285, made out of DG - 104 design ( Jindal or

equivivelent ) fixed with required size F channel, rawl plugs and screws or with

fixing clips, or with expansion hold esters including necessary filling upof gaps

at junctions, at top, bottom and sides with required PVC/neoprene felt etc. and

aluminium snap beading for glazing / panelling, C. P.brass/stainless steel

screws, including standard anodised aluminium fittings and fixtures of

approved make and of adequate size and in adequate numbers, including cost

and fixing of fixtures etc. complete as per detailed drawings with all lead and

As per Item no 27 Providing & fixing in position aluminum grill with

micron natural matt brush finish anodized as per overall size and aluminum

sections of approved make conforming to IS:733 and IS : 1285, made out of DG -

104 design ( Jindal or equivalent ) fixed with required size F channel, rawl plugs

and screws or with fixing clips, or with expansion hold esters including necessary filling

up of gaps at junctions, at top, bottom and sides with required PVC/neoprene felt

etc. and aluminum snap beading for glazing / paneling, C. P.brass/stainless steel

screws, including standard anodized aluminum fittings and fixtures of approved

make and of adequate size and in adequate numbers, including costand fixingof

fixtures etc. complete as per

ITEM NO –35: Providing and fixing rolling shutter of approved make made of 80mm. wide

M.S. laths inter lock together their entire length and jointed together at the end locks

mounted on specially designed pipe shaft with bracket plates, guide channels and outside

locking with push- pull operation including the cost of hood cover and spring etc. complete

a)Shutters having width below 3.5 m. ITEM NO –30: Providing and laying broken China

Mosaic flooring for terrace using 12 mm to 20mm broken pieces of glazed tiles to be laid over

Cement mortar 1:3 to plain or slope and to be tempered to bring mortar crème out upto

surface using white cement including rounding of junctions and extending them upto 15 cm.

along thewall, clearing with water and oxalic acid etc. as directed

MATERIAL - WATER

1.1 Water shall not be salty brackish and shall be clean, reasonably clear and

freeobjectionable quantities of silt and traces of oil injurious alkalis salts organic

matter and other deleterious material which will either weaken the mortar of

concrete or cause efflorescence or attack the steel in R.C.C. container

fortransport storage and huddling of water shall be clean. Water shall confirm to

the StandardSpecification in I.S. 455 -

1.2 If required by the Engineer in charge, it shall be testedby comparison with

distilled water compression shall be made by means of standard cement tests for

soundness, time of setting and mortar strength as specified in I.S. 269 -

Any indication of unsoundness charge in time of setting by 50 minutes or more or

decrease of more than 10 percent strength of mortar prepared with distilled water

sample whencompared with the result obtained with mortar prepared with

distilled water shall be sufficient cause for rejection of water under test.

1.3 Water for curing, mortar concrete or masonry should not be too acidic/too

1.4 It shall befree of elements which significantly affect the hydration

reactionorotherwise interface with the hardening of mortar or concrete during

curing or those which produce objectionable stains or other unsightly deposits on

concrete ormortar surfaces.

1.5 Hard and bitter water shall not be used for curing.

1.6 Potable water will generally found suitable for curing mortar or concrete.

2.1 Cement shall beordinary Portland slag cement as per I.S. 1624 - 1974 or

Portland slag cement as per I.S.455-1976.

2.2 Cement shall be stored above the ground level in perfectly and dry and water

tight sheds. Wherever bulk storage containers are used, there capacity should be

sufficient to cater to the requirements at site and should be cleaned at least once

every 3 to 4 months. The aggregate shall be stored in such a way as to

preventadmixture of foreign materials. Different size of fine or coarse aggregate

shall be stored in separate stock piles sufficiently away from the each other to

prevent inter mixing the materials.

3.1 Sand shall be natural sand, clean, well graded, hared,strong, durable and gritty

particular free from immures amounts of dust, clay, kankar, modules, soft or flaky

particles shall alkali salts, organic matter, learn mica or other deleterious

substance and shall be got approved from the Engineer in charge. The sand

shall not contain more than 8percent of slit as determined by field test if

necessary, the sand

COARSE SAND - The fineness modules of coarse sand shall not be less than

2.5 and shall not exceed 3.0. The sieve analysis of coarse sand be asunder :

I.S. Sieve Designation % by wt. passing

FINESAND :The fineness modules shall not exceed 1.0 the sieve analysis of fine

sand beas under:

I.S. Sieve Designation % by wt. passing

Materials shall be stored as to prevent their deterioration of their quality and

fitness for the work.Any material which has deterioration or has been damaged or

is otherwise considered defective by the Engineer in charge shall not be used in

1.4 WATER PROOFING COMPOUND

Water proofing compound shall be of approved quality and make as approved by

Engineer in charge.

1.5 CHINA MOSAIC TILE PIECES

China mosaic type water proofing treatment on terrace using broken pieces of

glazed tiles shall be of 12 mm to 20 mm nominal size broken pieces shall be

made from hard and good quality of tiles.

1.7 WHITE CEMENT

White cement shall be of approved make it shall confirm definition of I.S. 8042-E-

1978 the sample of white cement shall be approved by Engineer in charge.

A First of all surface of the entire terrace shall be cleaned by thoroughly brooming

and then by wire brushes. All the loose material, dust and debries shall be

removed thoroughly from the entire surface of the terrace.

All joints and cracks shall be racked off and cut in trench which shall be filled by

neat cement slurry admixed with water proofing compound. The joints with

parapet shall be racked up to 30 cm height and shall be applied by neat cement

slurry admixed with water proofing compound.

Neat cement slurry shall be prepared and a water proofing compound of

approved make shall be mixed with the slurry in proportion specified by the

manufacturer of the compound and shall be laid throughout the surface of the

terrace by the use of brushes mala etc. Cement slurry shall be prepared by

adding adequate quantity of water so as to spreadit uniformly on the surface.

B 40mm thick Cement concrete 1:2:4 (1part of cement and 2 part of coarse sand

and 4 part coarse aggregate 20mm nominal size by volume) admixed with water

proofing compound of approved make in specified proportion) of specified

thickness shall be laid (Specification of C.C. 1:2:4 shall be followed for the

execution of this layer) all over the surface of the terrace in true level and

required slope including rounding of junctions of walls and slabs.

C After two days of proper curing applying a second coat of cement slurry on entire

surface of the terrace.

D The entire surface shall be finished with 20 mm thick C.M. 1:3 and China mosaic

tilling in true level and slope as directed by Engineer in charge and finally

finishing the surface with trowel with white cement slurry (Specification of white

glazed tiles flooring shall be followed for the execution of this item).

E Finishing the surface with 20 mm thick C.M. 1:3 and China mosaic tilling and

finally finishing the surface with trowel with white cement slurry.

F After two days proper curing the terrace shall be flooded for15 days.

7.0 MODE OF MEASUREMENT AND PAYMENT

7.1 The unitrate of flooring shall include the cost of all materials, tools and

plantrequiredfor mixing, laying of base layer in true level and slope as required

applying and placingbroken pieces of china mosaic tile in position, compacting,

finishing, curing, providing treatment of 30 cm high allover the length of parapets

and corners and sill of doors etc. and all other incidental expenses for producing

flooring work to complete the structure of its components as shown on the

drawings and according to these specifications. Item shall also include the cost of

making, fixing of all scaffolding and forms required for the work.

The rate of plastering shall include the cost of all labour, materials, tools and

plants, scaffolding and all incidental expenses as described herein above.

7.2 The plaster work shall be measured for its length and width, limiting dimensions

to those specified on plan or as directed. The rate shall be for a unit of one

7.3 A guarantee bond on appropriately stamped paper shall be given by the

contractor to the Department in the manner and form prescribed below.

7.4 The paymentwillbe made on Square Meter basis of the finished work.

FORM OF GUARANTEE BOND

guarantee that work will remain unaffected an will not be in anyway damaged by water rain and

will not leak from surface for a period for 5 years after completion of the work of water proofing

treatmentas per the terms and conditions of the contract and damage that might be caused on

account of water rain and or other similar type of dampness of leakage from walls or above

The guarantee shall remain in force for the period of 5 years from the completion of the work

under the contract and lit shall remain binding to the contractor for period of 5 years.

The deposit at the rate of 20% of the cost of this item from the running and final bills shall be

recovered and remained for the first one year after completion of the work or at least on

monsoon season passed whichever is later and 10% shall be retained for the balance of the

guaranteeperiod land shall be returned only after completion of the guarantee period.

MODE OF MEASUREMENT AND PAYMENT

The length and breadth shall be measured correct to cm. as per the dimension of the

sanctioned plants. No deduction shall be made not extraforpaid for any opening for pipes etc.

upto 0.1 sq.mt. The rate shall include the cost of all labour and materials required for the

operation involved. For satisfactory completion of work & measurement shall be paid on unit of

Sq.mt. of finished work.

ITEM NO –36: Providing and laying polished Kota stone slab flooring over 20 mm (average)

thick base of cement mortar 1:6 (1 cement : 6 coarse sand) laid over and

jointed with grey cement slurry including rubbing and polishing etc. complete

This work shall consist ofproviding and fixing machine cut, free edges, machine polished

blue kotah stone slab 25 mm thick for as per designof the shape and dimensions shown on the

drawings and conforming to these specifications or as approved by the Engineer in charge.

Water shall confirm to M-1. Cement Mortar shall confirm to M-11. Kotah stone slab shall

confirm to M-49.Sand shall conform to M-6.

1.0 KOTAH STONE SLAB

1.1. Kotah stone slab shall be hard even sound, and regular in shape and generally uniform

in colour. The colour of the stone shall generally be green. Only approved coloured shall not be

allowed for use. They shall be without any soft veins cranks of flaws polished kotah stone slab

shall be hard, even, and regular in shape and it should without fault.

1.2. The size of the Kotah stone slab to be used as approved by Engineer in charge or

Architect. However smaller sizes will be allowed to be used to the extent of maintaining required

pattern. Thickness shall be as specified. For stair casethe polished blue kotah stone slab shall

be in single piece.

1.3. Tolerance of minus 30 mm. on accounts of chisel dressing of edges shall be permitted

for length as well as breadth. Tolerance in thickness shall be +3 mm.

1.4. The edges of polished Kotah stone slab shall be truly chiseled and table rubbed with

coarse sand before paving. All angles and edges of the stones of shall be true, square and free

chipping and surface shall be true and plain.

1.5. The polished Kotah stone slab shall have machine cut free edges with half round pipe

moulding mirror polished surface. When brought on site. The stones to be used forflooring dedo,

skirting, sink, veneering, sills, steps, etc.

2.0 WORKMANSHIP

2.1 Kotah stone slab shall be of approved quality shall be laid evenly to level and slope as

directed by Engineer in charge over a bed of a base layer consisting of cement mortar

1:6 (1 cement: 6coarse sand by volume) or Lime Mortar 1:1.5 (1 lime : 1.5 lime putty by

2.2 Kotah stone slab shall be laid evenly as per detailed drawing or as directed by Engineer

in charge. Width, length and shape of stone shall be as per pattern shown in detailed

2.3. Cement and sand for base layer shall be mixed in proportions of 1:6 (1 cement :6coarse

sand by volume). Cement and sand shall be proportioned by volume after making due

allowance for bulking. The require quantity of water shall then be added and the mortar

mixed to produce workable consistency before mixing platform shall be thoroughly

cleaned before changing from one type of cement to another.

2.4. The mixing for base layer shall be done intimately. The operation shall be carried out on

clean water tight platform, and cement sand shall be first mixed dry in the required

proportion to obtain uniform colour and then the mortar shall be mixed for at least two

minutes after addition of water. In case of cement mortar, that has suffered because of

evaporation of water the same shall be re-tempered by adding water as frequently as

needed to restore the requisite consistency but its re-tempering shall be permitted only

within thirty minute from the time of addition to water at the time of initial mixing.

2.5. Cement and sand for base layer shall be mixed in proportion as specified in the item,

Cement and sand shall be proportioned by volume after making due allowance for

bulking. The required quantity of water shall then be added and the mortar mixed to

produce workable consistency.

2.6. Curing shall be started as soon as the mortar used for finished has hardened sufficiently

no to be damaged when watered. It shall be kept wet for a period of at least 7 days.

During this period, it shall be suitably protected from all damages;

2.7. During hot weather, all finished or partly finished work shall be covered or wetted in such

manner aswillprevent rapid drying of the flooring work.

2.8. Joints of polished Kotah stone slab flooring shall be through and continuous throughout

the building as directed by Engineer in charge.

2.9. Joints shall be filled with a stiff mixture of gray cement slurry.

2.10. The Kotah stone slab flooring work shall be finished by rubbing and mirror polishing after

the work of flooring is set properly.

3.0 MODE OF MEASUREMENT &PAYMENT :

3.1. The unit rate polished blue Kotah stone slabflooring shall include the cost of all

materials, tools and plantrequiredfor mixing, laying of base layer in true level and slope

as required applying &placing stones in position, finishing, curing etc. flooring all over the

length of walls and corners and sill of doors etc. and all other incidental expenses for

producing flooring work to complete the structure or its components as shown on the

drawings and according to these specifications. They shall also include the cost of

making, fixing and removing of all scaffolding and forms required for the work. The rate

includes cost of mirror polishing of flooring and dedo work.

3.2 Therateshall include the cost of all materials and laboursinvolved in all the operations

described above. The polished blue kotah stone slabflooring shall be measured in

Square meter correct to 2 places of decimal. Length and breadth shall be measured to

correct to a centimeter and between the finished the finished face of the skirting, dado or

wall plaster and no deduction shall be made nor extrapaidfor any opening in floors or

areas up to 0.1 square meter.

3.3 The rate shall befor a unit of one Square meter.