SPL REPAIR TO BLDG NO. B-03 X-RAY BUILDING OF MH AGRA UNDER GE (WEST) AGRA

M&L for carefully taking down existing brick tiles, bituminous felt, mud phuska, including plastered lime or cement concrete of any thickness up to the mother slab, and cleaning the roof surface, including roof trenches, gutters, junctions, parapets, kerb walls, PCC fillets, benching etc. with wire brushes, flushing with water and removing the rubbish/debris to a distance not exceeding 500 m and depositing the same where directed, at a level not exceeding 1.5 m above the starting point, complete all as specified and as directed

M&L for cement concrete 1:2:4 type B-0 (using 12.5 mm graded crushed stone aggregate) as in roof kerbs or mud stops, rounded or chamfered on edges and similar works including use of necessary form work (striaght or curved) complete all as specified and directed.

M&L for cutting out cracks to V-section in existing roofs or terracing, cleaning out the cracks and filling them solidly with hot mixture of bitumen and clean, dry sand in the proportion of 1:1 by weight, including preparation of the surface and finishing smooth, complete all as specified and as directed

M&L for preparation of new plastered roof surfaces, including cleaning the surface using wire brush/ pressure hose and application of high performance polyurethane liquid membrane waterproof coating, applied cold in three coats @ minimum 1.8 Kg/Sqm total consumption by spray or brush application, having elongation of 300% to 700% as per ASTM D612, tensile strength not less than 3 N/Sqmm as per ASTM D412, crack bridging ability of minimum 3mm as per ASTM C1305, Shore A hardness not less than 60 as per ASTM D2240, including application of epoxy primer @ 0.15 Kg/Sqm and including laying of 50 GSM geotextile over the first coat while the coat is wet, complete as per manufacturer's specification, sound engineering practices complete all as specified and directed. Note :- (i) Work shall be executed by authorized applicator of manufacturer as per manufacturer's instruction. (ii) Ponding test of the roof shall be carried out for a continues period of 72 hrs both before and after the roof treatment, as specified and directed. The quoted rate shall be inclusive for the ponding test. In the event of any leakage being observed during the ponding test after completion of the roof treatment, the same shall be rectified by the contractor at his own cost and the ponding test shall be repeated until satisfactory results are achieved.

M&L for cement concrete 1:2:4 type B-1 (using 20 mm graded crushed stone aggregate) as in benching, coping, padding etc and similar work including use of necessary form work (striaght or curved) complete all as specified and directed.

Demolition of brick work or stone /boulder masonary built in cement mortar or cement lime mortar including all quoins, arches, pillars etc. but excluding ashlar facings, dressed stone work and precast concrete articles, complete all as specified and directed.

M&L for brick work with old size sub class 'B' bricks, straight or curved on plan exceeding 6 m mean radius, built in cement mortar 1:6 complete all as specified and directed.

All as per item No. 7 above, but except bricks, including cleaning of old size bricks and removing mortar therefrom complete all as specified and directed. Note :- Serviceable bricks retrieved from item No. 6 shall be reused.

M&L for brickwork with old-size, subclass ‘B’ bricks, straight or curved on plan to any radius, in half-brick-thick walls, built in cement mortar 1:4, complete all as specified and directed

Taking down cement or cement lime plaster on brick or stone walls or concrete surfaces etc (any thickness) including raking out joints, hacking for key, scrubbing down with water etc, including removal of rubbish off the premises, complete all as specified and as directed