Repairs to Flat RCC Roof to avoid Roof Leakages of Estate Buildings at O. F. Ambajhari

Amount

Repairs to flat RCC Roof to avoid Roof Leakages of Estate Buildings at O.F. Ambajhari

Demolition of cement concrete of any description and in any position at any height including removal of debris from site whereas directed by EIC, all as specified and directed complete

Material & labour for complete removal of old tar-felt of any thickness and its adhesive/coal tar & cleaning of old concrete/plastered surfaces by using wire brush, scrapper, sandpaper etc. & disposed off up to 1 Km, all as specified & directed complete

Roughening surfaces of old concrete floor by picking, sweeping clean and washing down with water to remove dust, etc. and brushing neat cement slurry with 3.0 kg of cement per sq. metre at any place & height as instructed by site- I/C and directed by Engg I/C.

Taking down of exisiting plaster on brick work or concrete surfaces/stone wall including raking out joints, hacking etc. including removal of debris from site whereas directed by EIC.

Material & labour for rendering cement plaster 15 mm in CM 1:3 for full height of parapet wall.

Disconnecting existing tanks, setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position. Tank capacity. exc. 500 ltrs. to n.exc. 1000 ltrs.

Dismantling and removal of damaged A.C. bends, partly embedded in masonry by cutting of wall and providing & fixing of new PVC (SWR) bends any radius with access door filling of joints and making good to wall including of scalffolding to match with existing surface at any height. Bend size 110 mm dia. with access door Make:- Price, Supreme, Finolex or equivalent make of pressure rating 6.00 kg/cm2

Dismantling and removal of damaged/cracked AC out-let/down take pipes of any length up-to 6.5mtr height, & providing & fixing of new PVC (SWR) pipes 110mm dia etc. Make:- Price, Supreme, Finolex or equivalent make of pressure rating 6.00 kg/cm2 double socket with rubber joins and filling of joints with approved quality of adhesive, fixed to wall with PVC clamp or lay treches including romoval of broken pipes to a distence not exc. 1000m. All as specified and directed complete.

Material and labour Galvanised Steel wire netting 0.71mm dia, 25mm size of mesh, for laying of concrete over existing roof slab, . all as specified and directed complete.

Providing & laying cement concrete 1:2:4 mix (12.5mm graded aggregate) in roof kerbs, rounded or chamferd on edge, cills, steps, parapet & railing, coping etc.

Material and labour for monolithic cement concrete 40 mm average thickness for maintaining slope over RCC slab as directed as per site condition in 1:2:4 mix (M15) nominal mix, 12.50 mm graded aggregate, including scaffolding, finishing the exposed surfaces of concrete to a fair, even and smooth and curing, all as specified and directed complete.

Supply and Mixing of water proofing compound 200 ml in 50 Kg cement for cement concrete work .Make/Brand accepted by E.I.C/S.I.C as per specification in SSR Part-I. (Mixing of water proofing compound will be done as per manufacture instructions) all as specified and directed complete. (Note:- Make of water proofing comopund wiill be restricted to 200 ml/50 kg cement or below.)

Rajesh Gurao