Waterproofing of first floor roofs and renovation of CSIR CIMAP CRC Hyderabad main building

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in :

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

Providing and fixing on wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion, (i) Single socketed pipes.

110 mm diameter

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS :5382, leaving 10 mm gap for thermal expansion. Bend 87.5°

110 mm bend

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS :5382, leaving 10 mm gap for thermal expansion Shoe (Plain)

110 mm Shoe

Providing and fixing unplasticised -PVC pipe clips of approved design to unplasticised - PVC rain water pipes by means of 50x50x50 mm hard wood plugs, screwed with M.S. screws of required length, including cutting brick work and fixing in cement mortar 1:4 (1 cement : 4 coarse sand) and making good the wall etc. complete.

15 mm cement plaster on rough side of single or half brick wall of mix:

1:6(1 cement: 6 coarse sand)

Demolishing brick coba/work manually by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge.

In mud mortar

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.

Demolishing R.C.C. work by mechanical means and stockpiling at designated locations and disposal of dismantled materials up to a lead of 1 kilometre, stacking serviceable and unserviceable material separately including cutting reinforcement bars.

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.

Cutting holes up to 30x30 cm in walls including making good the same:

With common burnt clay F.P.S. (non modular) bricks

Grading roof for water proofing treatment with

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

Surface Cleaning & crack filling with two coats mixed with cement in ration 1:1.5 (1 ltr SBR latex : 1.5kg cement) of width 150mm of required length and 10mm depth and appropriate thickness etc. as per direction of engineer -in-charge.

Finishing the surface with 20mm thick jointless cement mortor 1:4 (1 cement: 4 coarse sand) in ratio admixture with water proofing compound conforming to IS code: 2645 and approved by Er-In-Charge including laying glass fiber of approved quality on top layer of plaster and finished the surface with trowel with heat cement slurry making pattern of 300mm X 300mm square 3mm deep and also to give required slope and treating the similer the adjoining wall upto 300mm height, including rounding the junction wall and slab.

Providing and applying two or more coat of high performance polymer modified cementenous coating with 45 GSM glass fiber mesh rainforcement with the help of brush, rolar & spray. After diluction of powder componant to the liquid pllymer to make smooth and homogenics serface etc. completes as direction of engineer -in-charge.

Providing and applying one self primer coat with water in ratio 2:1, 0.45 to 0.50 liter per square meter per coat) and three or more undiluted coat of high performance solar reflective water proof coating for roof of 1.0 to 1.1 liters per square meter per coat , including 45 GSM glass fiber mesh with a size of 2.5mm X 2.5mm with the help of brush, rollar & spray to make the surface heat insulated and leakproof etc. complete as per direction by engineer - in - charge.

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