SPECIAL REPAIR TO ROOF TREATMENT IN BLDG NO. 380 AT JCDA AF UNDER GE AF AT VSN NAGPUR

Amount

Taking down carefully existing bitumen tar felt including plaster and roughening the surface ,wire brushing , cleaning and washing with water etc., and removing the rubbish to a distance exceeding 500m but n.exc 1Km & depositing where directed .

All as per item no 1.00 above but on vertical surfaces like parapet execpt brick coba/tiling etc complete all as specified and as directed.

Material and labour for roof treatment on RCC roof slab complete as mentioned below, all as specified and as directed:- (i) Checking the roof slab by flooding test with water till total elimination of leakage/seepage/ dampness all as specified in SSR Part-I (after ascertaining location of leakage/seepage/ dampness, carrying out treatment vide item No. 9 hereinafter of pressure grouting shall be operated at the required locations). (ii) Brushing surface with neat cement slurry at the rate of 3.00kg of cement per Sqm. (iii) Cleaning the plastered roof surfaces and applying a coat of bitumen primer @ 0.3 kg/sqm on top of dry surface. (iv) Laying APP modified polymeric membrane 3mm thick with non woven polyster core laid bonded to the sub strata and over lap shall be sealed/ fused by flame "torch" application method all as per manufacturers instructions.

M&L for applying bitumen base aliminum paint @ 0.2 kg/Sqm in two coats over APP modified polymer complete all as specified and directed.

M&L for a coat of hot bitumen @ 1.2 kg/sqm shall be applied over polymeric membrane and blined with clean dry sand @ 0.5 kg/Sqm complete all as specified and directed.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceabletiles to store and rubbish off the premises complete all as specified and as directed.

M&L for Cement concrete tiles 25cm x 25cm x 22mm thick, machine pressed; set jointed and pointed with grey cement and pigment in roofs, and cut and polished over and including screed bed or bedding layer of cement mortar(1:4) 20 mm thick mixed with chemical compound @200ml/bag of cement or as per manufacturers instructions for laying floor finishes complete all as specified and directed.

M&L for PCC 1:2:4 type B-0 using 12.5 mm graded stone aggregate as filleting and benching slightly rounded off and filling undulation of roof surfaces where as reqired etc. Including necessary formwork if any, complete all as specified and directed.

Material and labour for grouting in roof through PVC nipples at a spacing of 45 to 60cm C/C including drilling injection points to a depth of 75-100mm, providing 10mm dia PVC nipples and pressure grouting using with and including cement mixed with plasticizing admixture like FOSROC (model CEBEX100) or PIDILITE (model 207 PIDICRET 8AM) @ 225gms/50kg of cement to fill up all capillaries/ voids/ honeycombing areas inside concrete with pressure of 2 to 4 Kg/Sqcm and continued till refusal. After grouting, nozzles to be sealed with the sealing compound/mortar etc, all as per manufacturers instructions and as directed. Note:- After ascertaining the location of leakage/ seepage/dampness under item No.3 here-in-before, this item shall be operated at the required location.

M&L for rendering over roof slab 10mm thick in CM 1:3 concrete surfaces including mixed with water proofing complound @3% by weight of cement concrete and finished surfaces fair and even surfaces including removing old plaster completly complete all as specified and directed.

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

S&F PVC (SWR) pipe, 75mm bore single socketed, in any length with rubber ring joints fixed to wall, all as specified and as directed by engr in charge.

S&F PVC (SWR) Bends, 75mm bore fixed to pipes all as specified and as directed by engr in charge.

Demolition of concrete (reinforced) any description and in any position not otherwise specially provided for all as specified and as directed by engr in charge.

M&L for RCC 1:2:4 type B0 (using 12.5mm graded stone aggtegate) for chajja any thickness and in any width all as specified and as directed by engr in charge.

M&L for Formwork to chullah hoods, cha jjas, troughs and similar items in cluding edges all as specified and as directed by engr in charge.

M&L for Formwork to edges of concrete for fair finished surfaces flats, treads, breaks in floors, window cills,concrete rail ings, openings in concrete walls, floor and roofs n exc 20 cm wide and sides of RCC/ PCC bands in walls, horizon tal or sloping and similar work exc 10cm but n exc 20cm wide all as specified and as directed by engr in charge.

Disconnecting existing PVC water tanks of capacity exc 250 litres & n. exc 500 litres setting aside (or lowering) for repair work and hoisting , reconnecting, refixing in the same position complete all as specified and as directed.

Disconnecting existing PVC water tanks of capacity exc 500 litres & n. exc 1000 litres setting aside (or lowering) for repair work and hoisting , reconnecting, refixing in the same position complete all as specified and as directed.

Taking up or down steel tubing and connections 15mm bore all as specified and as directed .

Taking up or down steel tubing and connections 20mm bore all as specified and as directed.

Taking up or down steel tubing and connections 25mm bore all as specified and as directed .

Refixing the steel tubing 15mm bore obtained from item No. 20 above after, cleaning in new or old position (wall, ceiling, floor etc.) complete all as specified and as directed.

Refixing the steel tubing 20mm bore obtained from item No 21 above after cleaning in new or old position (wall, ceiling, floor etc.) complete all as specified and as directed .

Refixing the steel tubing 25mm bore obtained from item No 22 above after cleaning in new or old position (wall, ceiling, floor etc.) complete all as specified and as directed.

S&F GI water tubes 15mm bore medium grade with all fittings and fixed complete to walls and ceiling or laid in floors all as specified and as directed.

S&F GI water tubes of bore 20 mm dia tubes medium grade with all fittings and fixed complete to walls and ceiling or laid in floors all as specified and directed.

S&F GI water tubes of bore 25 mm dia tubes medium grade with all fittings and fixed complete to walls and ceiling or laid in floors all as specified and directed.

S&F in repair 25mm Ball valves high pressure of PTMT with epoxy coated Aluminium rod & highdensity plastic ball screwed for iron pipe and fixed. (Minimum weight 15mm-142gms/ 2 0mm-210gms./ 25mm-455gms/ 40mm - 690 gms) all as specified as directed.

S&F Rotational moulded polye thylene water storage tanks Capacity 500 ltr (cylindrical verticalwith closed top) hoisted and fixed in position all as specified in SSR Part I Complete all as specified and as directed.

M&L for applying evenly a tack coat of industrial bitumen 85/25 at the rate of 1.2 kg per sq.m including cleaning surfaces Complete all as specified and as directed.

M/S Darshan Singh Plaha

M/s Ashwin Bhange

dhanshree enterprises

M/s Prakash R. Verma

M/s Rahul Traders

M/s M.G. Hargunani

S D WAGHAMSHI