LEAKAGE/SEEPAGE AND ROOF TREATMENT INSIDE COD KANPUR UNDER AGE B/R-I OF GE (I) KANPUR CANTT

Dismantling of terracing tiles/brick tiles single layer on roof,laid bedded and pointed in any mortar complete all as specified and directed. (APP membrane)

Demolition by using hand held electric drills, cutting machine, chisels etc (direct use of hammers on RCC roof for demolition is strcitly prohibited) of roof treatment including padding concrete of any description including mud in roof any thickness with and including roughening old concrete surfaces by picking, sweeping clean and washing down with water to remove dust etc complete all as specified and directed.

M&L for cement concrete type B0 (1:2:4) (using 12.5 mm graded stone aggregate) as in padding and coping, incl hunching, benching etc complete all as specified and directed.

M&L for 10 mm thick in CM (1:3) rendering on fair faces concrete surfaces / roof top mixed with liquid water proofing compound finished even & smooth without using extra cement complete all as specified and directed. Note : Liquid WPC shall be measured and paid separately.

Supply only liquid water proofing compound complete all as specified and directed.

M&L preparation of newly plastered sufaces of roof including cleaning the surfaces by using wire brush / pressure hose and applying high performance polyurethene liquid membrane waterproofing coating cold applied in two coats @ 1.5Kg /Sqm/ 2 coats spray/ brush applied, with an elongation of 300% to 700% and tensile strength of not less than 3 N/Sqmm as per ASTM D412 and ASTM D2370, crack bridging abiltity of 3.5mm as per ASTM C1305, shore a hardness of not less than 60 as per ASTM D2240. The item includes applying epoxy primer @ 0.15Kg/Sqm and a geotextile of 40 GSM to be applied over first coat while first coat is still wet as per manufacturer's instructions complete all as specified and directed. Note: The contractor shall submit a gurantee of 10 years from the date of completion of work for waterproofing treatment alongwith manufacturer's gurantee. The amount of Rs. 40 ( Forty ) per Sqm and min of Rs. 4000/- for waterproofing treatment shall be withheld from contractor's final bill till the expiry of gurantee period. The contractor at his own option may furnish fix deposit receipt pledged in favour of GE(I) Kanpur against guarantee money. 2. The water proofing shall be carried out by authorised applicator of manufacturer. The name of applicator shall be got approved from GE before commencement of work.

M&L for grouting using polymer modified waterproof grout.The detail procedure of inject grouting is as under complete all as specified and directed: (i) Drilling of 12mm dia holes upto 40mm depth and provide PVC nozzles/ entry ports over grid@ 1m c/c or less depending upon situation. (ii) Before injecting the grout compressed air to be blown to remove all dist and dirt. (iii) Grouting atpressure of 5kg/sqcm to be don till refusal/ rejection or appearance of grout from adjacent nozzle. (iv) Observe the cracks and make V groove along. (v) Nozzles and V groove shall be filled with polymer based mortar.

Removing of demolished meterial to a distance of exc 100m and n exc 200m or under, beyond the lead included in the rates, including loading, unloading complete all as specified and directed

S&F in repair 2 mm thick fibre glass reinforced translucent corrugated sheeting with two corrugations side lap fixed with coach screw and washer in roof, wall etc complete all as specified and directed.

S&F in repair 3mm thick solid in any colour polycarbonate sheet of profile matching with existing roof/wall cladding sheeting with all fitingS&Fixtures cub and bend if required shape and size fixed to roof /wall at proper position etc complete all as specified and directed. Note: work will be executed up to 15 m to 20 m height from ground level on roof of Hanger/ Warhouse.