Repairing of Under Ground Sump, leak repair to the Inlet and outlet pipe line of over head tank at P and T Colony Unit-IV, Bhubaneswar

Amount

Sub-Head : Dismantling and Demolishing

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Dismantling C.I. or asbestos rain water pipe with fittings and clamps including stacking the material within 50 metres lead :

100 mm dia pipe

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Dismantling the damaged and unserviceable GI pipe of 100mm dia of the main water supply line by cutting the pipe by the welding machine at site including all the cost of material and labour as per the direction of Engineer-in-Charge.

Dismantling of 100 mm ms bend in the existing main water supply line by cutting with welding machine at site including all the cost of material and labour as per the direction of Engineer-in-Charge.

Dismantling of damaged and unserviceable 150mm MS sluice valve of the main water supply line by cutting the rusted nuts and bolts with machine cutter including all the cost of material and labour as per the direction of Engineer-in charge.

Dismantling of welded GI pipe in the existing main water supply line by cutting with welding machine at site including all the cost of material and labour as per the direction of Engineer-in-Charge.

25 mm dia

50mm dia

Sub-Head : Concrete Work

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:2:4 (1 cement : 2 coarse sand(zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Extra for laying concrete in or under foul positions.

Sub-Head : Reinforced Cement Concrete

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level :

1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Sub-Head : Masonry Work

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in:

Cement mortar 1:6 (1 cement : 6 coarse sand)

Extra for laying brick work in or under foul position.

Sub-Head : Steel Work

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required.

In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works.

Supplying Folding type table made up of GI members of Size 2.00x0.35mx1.20m for carrying out repair work inside the under ground sump Including all the cost of materials and labour etc complete as per the direction of Engineer-in charge.

Sub-Head : Flooring

Cement concrete flooring 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete.

40 mm thick with 20 mm nominal size stone aggregate

Sub-Head : Water Proofing

Painting the inside surface of the under ground sump with high performance water proofing modified polymer (Fast flex)of Dr.Fixit or equivalent not less than 1.80 kg /sqm in two coats including all the cost of labour and material etc complete as per the direction of Engineer-in charge.

Repairing of RCC Over head water tank by applying micro concrete of Dr.Fixit or equivalent as per maunfaturers specification by removing the damaged concrete portion , cleaning of the rust from the reinforcement with chemical including all the cost of labour and material etc complete as per the direction of Engineer-in charge.

Sub-Head : Finishing

Cement plaster 1:3 (1 cement: 3 coarse sand) finished with a floating coat of neat cement.

12 mm cement plaster

18 mm cement plaster in two coats under layer 12 mm thick cement plaster 1:5 (1 cement: 5 coarse sand) finished with a top layer 6mm thick cement plaster 1:6 (1 cement: 6 fine sand).

6 mm cement plaster of mix :

1:3 (1 cement: 3 fine sand)

Neat cement punning

Extra for providing and mixing water proofing material in cement plaster work in proportion recommended by the manufacturers.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade :

Two or more coats on new work.

Sub-Head : Repairs to Buildings

Raking out joints in lime or cement mortar and preparing the surface for re-pointing or replastering including disposal of rubbish to the dumping ground, all complete as per directions of Engineer-In-Charge.

Making hole in the main water supply line by welding machine at site for providing branch line including all the cost of material and labour as per the direction of Engineer-in-Charge.

25 mm dia hole

50 mm dia hole

Making arrangement of standing fans, Exhaust fan and light for proper ventilation and illumination of under ground sump during execution of the repair work etc complete as per the direction of Engineer-in charge.

Sub-Head : Water Supply

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings. This includes jointing of pipes & fittings with one step CPVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge : External work

100mm nominal inner dia. Pipes.

Providing and fixing C.I. sluice valves (with cap) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) :

150 mm diameter

Class II

Providing and laying Double Flanged (Screwed/ Welded) Centrifugally (Spun) Ductile Iron Pipes of Class K - 9 conforming to IS: 8329 :

100 mm dia Ductile Iron Double Flanged

Providing and fixing of medium duty GI Pipe of 100mm dia of Jindal or equivalent in the main water supply line by welding at site including all the cost of material and labour as per the direction of Engineer-in-Charge.

Providing and Fixing of 100 mm ms bend in the existing main water supply line by welding at site including all the cost of material and labour as per the direction of Engineer-in-Charge.

Providing & fixing CI flange in the existing pipe line including all the cost of nut & bolts etc. all complete as per the direction of Engineer-in-Charge.

Sub-Head : Conservation of Heritage Buildings

Providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, upto 25 metre height, above ground level, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40mm dia M.S. tube, placed 1.5 metre centre to centre, horizontal & vertical tubes joint with cup & lock system with M.S. Tubes, M.S. tube challis, M.S. clamps and staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of work of cleaning and/ or pointing and/ or applying chemical and removing it thereafter.

The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc, wherever required, if feasible, for inspection of work at required locations with essential safety features for the workmen etc., complete as per directions and approval of Engineer-in-charge.

Note :- (1) The elevational area of the scaffolding shall be measured for payment purpose.

(2) The payment will be made once only for execution of all items for such works.

Sub-Head : NEW TECHNOLOGIES AND MATERIALS

Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect.

SBR Polymer (@10% of cement weight) modified cementitious bond coat @ 2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer