COMPREHENSIVE REPAIR / MAINT TO LEAKAGE/ SEEPAGE AND CONNECTED SERVICES TO MARRIED ACCN INSIDE VIJAY DURG UNDER GE (FW) KOLKATA

Removal of existing water proof treatment of any description including cement plaster carefully from the surfaces cleaning and scrubbing down with water complete all as specified and as directed.

M & L for Providing, cement concrete, Type B1, 1:2:4 ( 20mm aggregate) in roof kerbs or mud stops, padding, rounded or chamfered on edges on existing roof( with proper slope) including preparing of roof slab complete all as directed by Engineer - in - charge.

M&L rendering 10 mm thick screed bed on concrete surface in CM (1:4) & even and smooth mixed with water proofing compound @ 250ml/Bags finished fair and even. ( Note -W.P.C. shall be measured and paid separately.)

M & L for water proofing treatment on existing cleaned RCC roof with following specification and manufacturer Instruction complete all as specified as directed. (a) Applying bitumen primer confirming to IS-3384-1986 over the cleaned plaster surfaces as per IS-3067-1966. (b) Applying a layer of APP based polymeric membrane 3.0mm thick (minimum) weighing 3.0 Kilogram per sqm (reinforced with polyster non oven fabric weighing not less than 160 Gmss per sqm by torch application. The over laps shall be minimum 100mm on the transverse direction and 75 mm on longitudinal direction. (c) applying one coat of aluminium paint @ 0.10 Litre per Sqm Over APP based Polymeric membrane.

Supply only integral water proofing compound all as specified and as directed.

M & L for Cutting grooves in brick wall, 75mm wide and 65mm deep and shaping horizontal face of groove with cement mortar 1:3 complete all as specified and as directed.

M&L for Taking down cement plaster in any description on brick or stone wall etc incl racking out joints. hacking for key scrubbing down with water etc.

M&L for 15mm thick cement plaster in cement mortar 1:4 on bricks or concrete surface and finished even and smooth without using extra cement including necessary scaffolding work all as specified and directed by Engr -in-Charge.

M&L for 15mm thick rendering in cement mortar (1:6) to fair faces of brick or concrete wall surfaces finished even & smooth without using extra cement all as specified and directed by Engineer -in-Charge.

M&L for 10 mm thick rendering in cement mortar (1:4) to fair faces of brick or concrete ceiling surfaces finished even & smooth without using extra cement all as specified and directed by Engineer -in-Charge.