REPAIR TO ROOF TREATMENT, RETROFITTING AND ASSOCIATED WORK IN ZONE-III AREA UNDER AGE B/R-II OF GE (I) KANPUR

Demolition of brick work or stone/boulder masonry built in Cement Mortar including all quoins, arches, pillars, etc, nut excluding ashlar facings, dressed stone work and precast concrete articles complete all as specified and directed.

M&L for Brickwork with subclass ‘B’ bricks, straight or curved on plan exc 6m mean radius built in built in cement mortar 1:6 complete all as specified and directed.

M&L for Brickwork with subclass ‘B’ bricks, straight or curved on plan exc 6m mean radius built in built in cement mortar 1:6 (except bricks i.e. by using old bricks after proper cleaning) complete all as specified and directed.

M&L Brickwork with subclass ‘B’ bricks, straight or curved on plan to any radius in half brick thick walls built in CM 1:4 complete all as specified and directed.

Dismantling of terracing tiles/brick tiles laid bedded and pointed in any mortar of any description or thickness in floors, aprons etc complete all as specified and directed.

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, 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 kerb/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 surfaces 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 1.5 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 green first coat, complete 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.