WPT including necessary repairs water supply drainage installation and other allied civil works in Residential and Non residential Buildings at Professor Colony Civil Line Section No.2 under PWD. City Sub Dn. No.2 Bhopal.

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

Nominal concrete 1:4:8 or leaner mix (i/c equivalent design mix).

For thickness of tiles 10 mm to 25 mm

For thickness of tiles above 25 mm and upto 40 mm

Cement mortar 1:4 (1 cement : 4 sand)

Cement Mortar 1:6 (1 cement : 6 sand)

Painting top of roofs with bitumen of approved quality @ 17kg per 10 sqm impregnated with a coat of sand at 60 cudm per 10sqm including cleaning the slab surface with brushes and finally with a piece of cloth lightly soaked in kerosene oil complete :

With residual type petroleum bitumen of grade VG 10

In 75x75mm deep chase

75 mm diameter (minimum wall thickness 1.8mm)

110 mm diameter (minimum wall thickness 2.2mm)

Coupler

75 mm (minimum wall thickness 1.8mm)

110 mm (minimum wall thickness 2.2mm)

Single push fit Coupler :

75 mm (minimum wall thickness 1.8mm)

110 mm (minimum wall thickness 2.2mm)

Single tee with door

75x75x75 mm (minimum wall thickness 1.8mm)

110x110x110 mm (minimum wall thickness 2.2mm)

Single tee without door

75x75x75 mm (minimum wall thickness 1.8mm)

110x110x110 mm (minimum wall thickness 2.2mm)

75 mm bend (minimum wall thickness 1.8mm)

110 mm bend (minimum wall thickness 2.2mm)

Shoe (Plain)

75 mm Shoe (minimum wall thickness 1.8mm)

110 mm Shoe (minimum wall thickness 2.2mm)

75 mm (minimum wall thickness 1.8mm)

110 mm (minimum wall thickness 2.2mm)

Stone ware spout

Upvc spout (Pipe dia.110 mm)

1:4 (1 cement : 4 sand)

1:6 (1 cement : 6 sand)

1:4 (1 cement : 4 sand)

1:6 (1 cement : 6 sand)

1:3 (1 cement : 3 sand)

1:4 (1 cement : 4 sand)

Neat cement punning

G.I. chicken mesh as per ISI specification and in the required width with 50mm long

Bombay nails before plastering upt 10 meter height.

Providing and fixing fibre mesh of 145 GSM weight in required width with cement mortar before plastering upto 10m height.

Finishing with Epoxy paint (two or more coats) at all locations prepared and applied as per manufacturer's specifications including appropriate priming coat, preparation of surface, etc. complete.

On steel work

On concrete work

One coat.

Two coats.

Two or more coats on new work

With cement mortar 1:4 (1 cement : 4 sand)

Upto and including 12mm dia

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

Epoxy bonding adhesive having coverage 2.20 sqm/kg ofapproved make

Stirrer mixed Acrylic Polymer of approved make @ 2% of weight of cement used) modified Cement slurry made with non shrink compound in concrete/RCC work

Stirrer mixed SBR Polymer (of approved make) modified Cement slurry made with Shrinkage Compensating Cement in concrete/RCC work.

Epoxy injection grout in concrete/RCC work of approved make

Internal work - Exposed on wall

15 mm nominal outer dia .Pipes.

20 mm nominal outer dia .Pipes.

25 mm nominal outer dia .Pipes.

32 mm nominal outer dia .Pipes.

40 mm nominal outer dia .Pipes.

50 mm nominal outer dia .Pipes.

Concealed work including cutting chases and making good the walls etc.,

15 mm nominal outer dia .Pipes.

20 mm nominal outer dia .Pipes.

25 mm nominal outer dia .Pipes.

32 mm nominal outer dia .Pipes.

15 mm nominal outer dia .Pipes.

20 mm nominal outer dia .Pipes.

25 mm nominal outer dia .Pipes.

32 mm nominal outer dia .Pipes.

40 mm nominal outer dia .Pipes.

50 mm nominal outer dia .Pipes.

Internal work - Exposed on wall

15 mm dia. nominal bore

20 mm dia. nominal bore

25 mm dia. nominal bore

32 mm dia. nominal bore

40 mm nominal outer dia .Pipes.

50 mm nominal outer dia .Pipes.

concealed pipe including painting with anti corrosive bitumastic paint, cutting chases and making good the wall.

15 mm dia nominal bore

20 mm dia nominal bore

External work : including trenching and refilling etc.

15 mm dia. nominal bore

20 mm dia. nominal bore

25 mm dia. nominal bore

32 mm dia. nominal bore

40 mm nominal outer dia .Pipes.

50 mm nominal outer dia .Pipes.

25 mm nominal bore

32 mm nominal bore

15 mm nominal bore

20 mm nominal bore

25 mm nominal bore

15 mm nominal bore. Weighing not less than 32 gms.

20mm nominal bore. Weighing not less than 40gms.

25 mm nominal bore. Weighing not less than 62 gms.

Making hole upto 20x20 cm and embedding pipes upto 150 mm diameter in masonry and filling with cement concrete 1:3:6 (1 cement : 3 sand : 6 graded stone aggregate 20 mm nominal size) including disposal of malba.

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete :

25 to 40 mm nominal bore

50 to 80 mm nominal bore

Fibre glass cloth when the first layer is still green. Overlaps of joints of fibre cloth should not be less than 10 cm. c) third layer of 1.5 mm thickness consisting of slurry of cement @ 1.289 kg/sqm mixed with water proofing cement compound @ 0.670 kg/sqm and sand @ 1.289 kg/sqm. This will be allowed to air cure for 4 hours followed by water curing for 48 hours. The entire treatment will be taken upto 30cm on parapet wall and tucked into groove in parapet all around.

Cement concrete 1:2:4 (1 cement : 2 sand : 4 graded stone aggregate 20 mm nominal size)

Cement mortar 1:3 (1 cement : 3 sand)

Cement mortar 1:4 (1cement : 4 sand)

and transverse direction at 23°C as 350/300 N/ 5cm. Tear strength in longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacture of membrane. (with five years service gurantee).

2mm (for corrugated roof sheets)

Joint strength in longitudinal and transverse direction at 23°C as 350/300 N/5cm. Tear strength in longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane : (with 5 years service guarantee)

Providing and laying APP ( Atactic Polymer) Polypropylene modified prefabricated five layer 3mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 ltr/sqm. by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ltr and viscosity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc., and preparing the surface complete.

The vital physical and chemical parameters of the membrane shall be as under: Joint strength in longitudinal and transverse direction at 23°C as 650/450N/5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane: (with 5 years service guarantee).

(i) Surface preparation roughening of surface, opening cracks in ‘V’ groove in size of 5mmX10mm (WXD), filling of cracks with putty with laying fiber glass mesh, Cleaning of surface by scrubbing with steel wire/Nylon brush. Removing all dust particles and washing with adequate water to clean completely.

(ii) Providing and applying 1st coat of fibre glass mesh (minimum thicknes 70-80 micron) and two component flexible waterproof and protective modified mortar, dry powder 80%chemical 20% acrylic resin having 30% solid contents) with mix proportion of part 1 and 2 with proper mixing with laying of fiber glass mesh (of weaving size of 10X10 yarn/inch duly coated with alkaline resistant polymer). Allow the coating to air cure for minimum 2 Hrs. After two hours of 1st coat applying

2nd coat (minimum thickness 100 micron) of fibre glass mesh of with mix proporation of part 1 and 2 with proper mixing. Allow the coatingto air cure for minimum 2 Hrs.

After two hours of 1st coat applying 2nd coat (minimum thickness 100 micron) of fibre glass mesh of with mix proporation of part 1 and 2 with proper mixing. Allow the coating to air cure for minimum 2 hrs. Consumption of two component should be acrylic resin @17.90 kg for 10 sqm area or as per manufacture instructions. (After two coats of diamond shield, surface is to be cured properly minimum for 4 hrs. before application of third coat).

(iii) Providing and applying 1st coat of sealer coat 50-60 micron (single component Hight build elastomeric, fixable pure acrylic waterproofing membrane having solid content of 65%) and allow it to air cure for 4Hrs. minimum. After two hours minimum of 1st coat applying 2nd and finals coat 120-140 micron of sealer coat and allow it to air cure for 4 Hrs mimimum. Consumption of Sealer coat should be @ 5.40 kg per 10 sqm area.

(iii) The treated area should be cure with water for 48 hrs. by flooding the surface.

The final appearance of the coating will be milky white. All above operations to be done in order.(five years guarantee)

(i) Removal of damaged waterproofing treatment if any like bituminous membrane / plaster/ brick bat koba/screeding etc. (ii) Surface preparation: Roughening of surface by scrubbing with steel wire/ Nylon brush/ Removing all dust particles and washing with adequate water to clean completely, opening of cracks in 'V' groovein size of 5mm x 10m (WxD), filling of cracks with elastomeric creak

filler/PU sealent repair of potholes and holor making on roof surface by polymer mortar with adding SBR bonding agent.

(iii) Providing and applying 1st coating of rubberized elastomeric liquid membrane as primer (ratio 1:2 1 part liquid membrane and 2 part water) by brush/ Roller/ Spray having minimum thickness of 70-80 micron. Allow the coating to set in natural air for minimum2 hrs, then put reinforcement by laying 45gsm fibre glass mesh and applying 2nd coat of rubberized elastomeric liquid membrane (Ratio: 1 part membrane and 20% water) with minimum thickness 100-120 micron. Allow the coating to set in natural air for minimum 12 hrs.

(iv) Providing and applying 3rd coat of rubberized elastomeric liquid membrane (Ratio: 1 part membrane and 10% water). Total DFT (Dry film thickness) thickness after 3rd coat must be 280-300 micron and consumption in three coats @ 6.5kg for 10sqm

(v) Providing and applying 4th and 5th coat of High quality waterproof membrane in white colour, single component special synthetic resin based flexible thixotropic white color coating with excellent UV resistance (SRI - 144) with more than 300% elongation (confirming ASTM D 412-98) in ratio: 1 part membrane and 10% water thickness of 200 micron DFT in two coats, with average consumption @ 5kg per 10 sqm. After application of fourth coat let it air dry for minimum 3 hrs before application of fifth coat.

(vi )The treated area must be tested for water leakage/seepage by flooding with water for 48 hrs

(vii) Application of membrane coating shall be got done by authorized applicator of manufacturer

(viii) 5 years of service guarantee to be provided. All above operations to be done in order as per direction on Engineer-in-Charge.

Providing & applying crack fill paste for crack filling up to 5 mm cracks.Widen the crack by putty knife in V/U shape & apply 1st priming coat of crack fill paste diluted with water in 1:1 proportion over the crack by brush. Apply 2nd coat with filling of crack fill paste when the surface is tacky but not dried completely with putty knife & spatula.After 4 hours of application 2nd coat apply 3rd coat of Crack fill paste. The work shall be carried out as recommended by the manufacturer’s specification & the direction of the Engineer-in-Charge

Providing and applying integral crystalline slurry of hydrophilic in nature for waterproofing treatment to the RCCstructures like retaining walls of the basement, water tanks, roof slabs, podiums, reservior, sewage & water treatment plant,tunnels / subway and bridge deck etc., prepared by mixing in the ratio of 5 : 2 (5 parts integral crystalline powder: 2 parts water by weight) for vertical surfaces and 3 :1 (3 parts integral crystalline slurry : 1 part water by weight) for horizontal surfaces and applying the same from positive (internal) side with the help of synthetic fiber brush. The material shall meet the requirements as specified in ACI- 212-3R- 2010 i.e by reducing permeability of concrete by more than 90% compared with control concrete as per DIN 1048 and resistant to 16 bar hydrostatic pressure on positive side. The crystalline slurry shall be capable of self- healing of cracks up to a width of 0.50mm. The work shall be carried out all complete as per specification and the direction of the engineer- in-charge. The product performance shall carry guarantee for 10 years against any leakage.

For vertical surface two coats @ 0.70 kg per sqm

For horizontal surface one coat @1.10 kg per sqm.

Providing and applying crystalline mortar by mixing in the ratio of 4.5 : 1 (4.5 parts crystalline mortar : 1 part water) for the treatment of faulty construction joints, cracks, tie rod holes and spalled & honeycombed surface of RCC underground structures like basement, water tanks, bridge deck etc. to ensure water tightness. The crystallie mortar shall conform to the EN 1504-3 having compressive strength Class R4 > 45 MPa and adhesive bond strength Class R3 > 1.5 MPa. The work shall be carried out all complete as per specification and the direction of the Engineer-In-Charge.The product performance shall carry guarantee for 10 years against any leakage.

For sealing cracks and faulty construction joints, routed out/making U-shape groove size 25x25mm and then primed the area with integral crystalline slurry @0.05kg/ running metre and while the surface is tacky filled the groove upto surface with crystalline mortar @1.50kg/ running metre. Once crystalline mortar is touch dry then finally applied two coats of integral crystalline slurry @0.05kg/running metre per coat.

For patching of tie rod holes, prepared tie rod hole surface and then primed the area with integral crystalline slurry @ 0.070 kg/sqm and while the surface is tacky repair and then filled the tie rod holes with crystalline mortar @ 0.040 kg per hole. The crystalline mortar should be tightly rodded into tie rod holes or packed tightly (For 25x25x25 mm tie rod hole, use 0.040 kg to fill the hole)

Sub- Engineer Sub-Divisional Officer Executive Engineer

PWD Bhopal City -2 Sub Division PWD Maint. Divn No. 1

Bhopal Bhopal

(mailto:[email protected]塹ᴻ䡿ⲯ嶂藄挧ꮥ)

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WPT including necessary repairs water supply drainage installation and other allied civil works in Residential and Non residential Buildings at Professor Colony Civil Line Section No.2 under PWD. City Sub Dn. No.2 Bhopal.