SPL REPAIR TO BLDG NO P-82 AND P-157 AT SOUTH COLONY RAIWALA

Removal of existing roof treatment i.e APP membrane, brick tiling incl mud mortar and open up RCC roof slab including picking, sweeping cleaning with wire brush and washing down with water to remove dust, dirt to get surface free of laitance , scales, oil or any other loose material complete all as specified and directed. Note :- (a) The work is required to be carried out at non-accessible roof for double storey . The contractor shall make arrangement of scoffolding,safety & security of workers and arrangement for approach to roof . (b) The rates quoted shall deemed to be included for these items

M&L for PCC 40mm thick of 1:2:4 type B-0 (using 12.5 mm graded stone agg) mixed with Liquid intergal water proofing compoud as per manufacturer direction and finishing the surface even and smooth with out using extra cement as in roof padding treatement to receive roof treatment complete all as specified and directed. Note :- liquid water proofing compound will be measured and paid seperately.

M&L for PCC (1:2:4) type B-0, using 12.5mm graded stone aggregates, as in concrete angle-fillets with a radiaus of 75 mm shall be provided at junctions between roofs, floor and vertical faces of walls (parapet, pillar for water tank staging and sunken floor) around obstacles such as pipes, chimney stacks etc. and other similar situation to ease up about corners mixed with integral water proofing compound as per manufactur direction complete all as specified and directed. Note :- Integral water proofing compound (WPC) will be measured and paid seperately.

Supply only WPC integral water proofing compound (Liquid type) complete all as specified and directed.

M&L for one coat of cement slurry admixed with acrylic bonding compound SBR Latex liquid polymer (slurry will be prepared as per manufacturer direction) as to be used for bonding of new concrete/ mortar to old surface. Note :- (i)The work is required to be carried out at non-accessible roof for double storey . (ii)The contractor shall make arrangement of scoffolding,safety & security of workers and arrangement for approach to roof .(iii) The rates quoted shall deemed to be included for these items.

M&L of water proofing treatment to non-accessible roof slab with APP based modified polymeric membrane as per manufacturer’s instructions with following course of description below :- (a) Applying evenly a tack coat @ 1.2 kg/Sqm using 85/25 grade of industrial hot blown bitumen on primed surface of roof by applying a priming coat of bituminious primer @ 0.30 Kg /Sqm, till the surface is properly impregnated. (b) Providing APP based 5 layer polymeric membrane minimum weighing 3.5 Kg/ Sqm and minimum 3 mm thick reinforced with polyester non-woven fabric (weight not less than 150 gms/sqm) centre core, laid on primed surface by torced applications as per the manufacturer's instructions with side over lap of 75 mm and end overlap of 100 mm. All overlap joints shall be sealed thoroughly by thermo fusing both the membrane layer (torching overlap by propane or butane gas torch ) and sealing it with the help of hot trowel. The overlap joints shall be made as a monolithic layer (c) Apply two coat of bituminous aluminium paint @ 0.20 Kg/Sqm over APP membrance Note : 1. The work of water proofing treatment shall be got executed through manufacturer or authorised applicator of the manufacturer only 2. The work is required to be carried out at non-accessible roof slab for double storeyed. The contractor shall make arrangement of scaffolding, safety and security of workers and arrangement for approach to roof . The rates quoted shall deemed to be included for these items.)

Demolition of lime concrete in floors and paving exe 15 cm thick above ground floor (sunken floor) including picking, sweeping cleaning with wire brush and washing down with water to remove dust, dirt to get surface free of laitance , scales, oil or any other loose material and removing the demolished material outside the MOD land complete all as specified and directed.

M&L two coat of acrylic polymer modified cementitious flexible waterproof coating on horizontal and vertical surface for sunken floor as per manufacturer instruction after base preparation of cleaning, brushing and removal of flaky materials. The coatings shall be applied at the intervals as per the manufacturer’s specifications and approved by Engineer in Charge . Note : Ponding test shall be carried out after water proofing coating for 48 Hrs .

M&L for 15 mm thick protection plaster in CM (1:4) floor and wall mixed with polymer modified repair mortar (SBR Latex liquid polymer as per manufactur direction ) complete all as specified and directed Note :- The rates of SBR quoted shall deemed to be included for the item.

M&L for 40 mm dia GI pipe, medium grade, as in spout pipe, projecting at least 300 mm beyond outer face of wall or as per direction of Engr-in-charge complete all as specified and directed.