SPL REPAIR TO ROOF TREATMENT TO BLDG NO P 53, P 54, P 55 AND P 58 OTM ACCN AT UNIT LOC AND P 38, P 39, P 42 TO P 44 JCO MD ACCN AT DOGRA LINE AND P 51, P 52, P 56, P 78 AND P 84 OR M ACCN AT DOGRA LINE OF 213 RKT REGT UNDER GE NASIRABAD

M & L for water proofing treatment to roof surfaces with APP modified membrane with non woven polyster reinforced, weight not less than 3 Kg /SQM and thickness of membrane not less than 3mm thick having thermal insulation with white mineral/gravel finish on upper side of membrane uniformly embedded during manufacturing process laid in following sequence complete all as specified and directed. (a) Applying 10 mm thick plaster in CM 1:4 mixed with and incl water proofing compound @3% by weight of cement on cleaned roof surface. After properly curing of the plaster, the roof will be tested for water tightening by ponding with water for 7 days for any seepage / leakage etc if any seepage is observed the recification will be carried out by pressure grouting under the pressure of 5 Kg/Sqm using cement based cement grout. After the roof surface is repaired the slab/roof will be again tested for water tightness against before processing further treatment. (b) Properly cleaning and drying of the plastered roof surfaces, parapets, gutters, drain mouths, etc for all foreign matters such as fungus, moss, dust, etc by wire brushing and dusting. Proper grooves shall be cut around CI drain outlets /pipes /chimney pipes and other similar situations to tuck in the treatment. Cont.... Item No 1.01

(c) Applying a coat of bituminous primer conforming to IS 3384-1965 @ 0.3 Kg/Sqm on the prepared surface till the surface is properly impregnated. (d) Laying APP modified water proofing membrane with 100mm overlap in longitudinal direction and 100mm overlap in transverse direction sealed and bounded to the surface by torch application method. (e) All joints and changes in direction should be curved with cement mortar 1:3 with SBR latex @ 200ml per bag of cement and cured well before laying the membrane. A fillet of PCC 1:2:4 type BO using 12.5mm graded stone aggregates shall be provided at all junctions of vertical and horizontal surfaces and wherever there is change of direction. NOTE :- (i) Work of water proofing treatment shall be carried out by the authorised applicator of the manufacture. Necessary documentary evidence in support of the authorised applicatior will be submitted to GE before the commencement of water proofing work. (ii) The quoted rates is deemed to include for the cost of scaffolding, T &P, etc required for execution of the work.

M&L PCC 1:2:4 type B-1 using 20 mm graded stone aggregate in lintels upto 1.5m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs not provided for in Item 04028, water troughs and the like including weathering, slightly rounded or chamfered angles and throating, as directed and including necessary form work complete all as specified and directed

Taking down cement or cement lime plaster on stone/brick wall, ceiling incl. Raking out joints, hacking for key, scrubbing down with water etc complete all as specified and directed.

M&L for rendering 15mm thick in CM 1:4 on stone masonry, external surfaces finished fair & even complete all as specified and directed

M & L for preparation of newly plaster surfaces of wall & applying two coats of cement base paint complete all as per specified and directed.

S & F rolled mild steel as in angle setion, fixed indepenntly with or without connecting plates or welding with existing steel or iron surfaces etc and similar work confirming to Gde E-165 (Fe 290) including necessary cutting, welding etc and fixing in position complete all as specified and directed.