SPECIAL REPAIR TO ROOF AND CONNECTED WORKS OF DALHOUSIE BARRACK (BLDG NO BI-1) UNDER GE (FW) KOLKATA

Amount

Dismantling stone slabs and tiles of any description or thickness in floors, aprons etc laid bedded and pointed in any mortar complete all as specified & directed.

Taking down/removing of existing water proofing treatment on roof surfaces and wall surfaces complete, including screed bed, racking out joints, hacking for key scrubbing down with water etc including dismantling of lightening strip and refixing the same in position, and removing rubbish out from MD land complete all as specified and directed. Note :- Dismantling and refixing of the lightening strip is deemed to include in the rate quoted if any.

Material and labour for spreading / brushing neat cement slurry with 2.75 Kg/ Sqm on old concrete surface complete all as specified and directed..

Material and labour for 50 mm thick PCC(1:2:4) type B0 (using 12.5 mm graded stone aggregate) for padding concrete as on roof complete all as specified and directed by Engineer-in-Charge.

Material and labour for 15 mm thick (average) screed bed in CM (1:3) on concrete surfaces on roof, mixed with water proofing compound and finishing the surface even and fair without using extra cement complete all as specified and directed (Water proofing compound shall be measured and paid seperately).

Material and labour for preparation of horizontal or vertical surfaces for water proofing treatment on existing cleaned RCC roof with the following specification and manufacturings instruction complete all as specified and as directed:- (a) Preparing and clening of fully dry surfaces as per IS3067-1966 (b) Applying bitumen primer conforming to IS:3384-1968 over the cleaned plaster surface @ 0.5 Ltr per sqm (c) Applying a layer of APP based polymeric membrance 3.0mm thick (minimum) weight 3.6 Kg per sqm (reinforced) with polyster Non woven fabric weighing not less than 160gms per sqm by torch application. The over laps shall be minimum 100mm on the transverse direction and 75 mm on longitudinal direction.

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

Supply and fixing Heat Resistant roof/Terrace Tiles of size 300 mm x 300 mm of thicness 10 mm minimum ,white coloured, with mineral composition, SRI (solar refractive index) > 78, solar reflection > 0.70 and initial emittance > 0.75 on waterproof and sloped surface of terrace, laid on 20 mm thick cement sand mortar in the ratio of 1:4 (1 cement : 4 coarse sand) mixed with liquid water proofing compound @ 200ml/50 kg bag of cement,applying cement slurry and scratching the screed bed for proper fixing of tiles,laying the tiles with 4-6 mm spacers and grouting the joints with mix of white cement & marble powder in ratio of 1:1, including rubbing and polishing of the surface upto 3 cuts complete, including providing skirting upto 150 mm height along the parapet walls in the same manner complete all as specified and directed. Note : Waterproofing compound shall be measured and paid separately Make : Make as approved by GE shall be of ISI marked and in case there is no BIS certification system/ Indian standard for the product, these shall be certified by accredited (NABL) laboratories to confirm to other standard of repute ,like British / European /American Standards

Material and labout for applying mixture of 80/25 bitumen and coarse sand (1:3) by weight, at the junction of roofing to vertical surfaces 8cmx8cm, complete all as specified and directed.

Material and labout for forming 20mm thick expansion joints filled with preformed bituminous filler and top 30mm primed and sealed with sealing compound grade 'A' for 150mm thick concret slab, complete all as specified and directed.

Material and labour for precast cement concrete (1:2:4) type B1 (20 mm gaded stone aggregate) , solid building blocks or slabs 10cm thick , set in cement mortar 1:4 complete in walls,roof, in base of GI strip etc complete all as specified and as directed.

Material & labour for Plain Cement Concrete (1:2:4) type B1 using 20 mm gaded stone aggregate as in cills, steps, seismic and similar bands, plinth courses, string courses, lacing courses, copings, kneelers, apex stones, kerb and the like including weathering, slightly founded or chamfered angles and throating as directed including use and waste formwork (straight or curved) complete all as specified and as directed.

Demolition of Brick work / stone masonry built in cement mortar including all quoins, plinth course and similar bands etc complete all as specified and directed.

Material & labour for old size brick work with fly ash brick straight or cuved on plan exc 6.0 mtr mean radius built in cement mortar 1:4 cement mortar complete all as specified and directed.

Material and labour for mild steel TMT bars 10 mm dia and over, cut to length, bent to shape required, including cranking bending spirally for lintels and binding with and including mild steel wire (annealed) not less than 0.9 mm dia or securing with clips, complete all as specified and directed.

Material and labour for Precast Reinforced Cement Concrete 1:2:4, type B-1 (using 20 mm graded stone aggregate) as in cover slab of drain, etc and set in cement mortar 1:6 including necessary form, moulds, etc complete all as specified and directed by the Engr-in-Charge. Note:- Cost of Form Work is deemed to be inclusive of unit rate quoted be the contractor & reinforcement shall be measured & paid separately.

Taking down cement plaster of any description on brick or stone walls, etc including raking out joints, hacking for key, scrubbing down with water etc complete all as specified and directed.

Material and labour for dubbing out average 10mm thick cement plaster 1:4, on irregular face of walls (when specifically ordered in writing) complete all as specified and directed.

Material and labour for 15 mm thick rendering in cement mortar 1:4, on fair faces of brick work or concrete surfaces, mixed with integral water proofing compound as per manufacturer's instructions and finished the surface even and smooth without using extra cement including all necessary scaffolding, complete all as specified and directed. (Note : WPC shall be measured and paid separately against respective item).

"Supply only" liquid water proofing compound (ISI marked) complete all as specified and directed.

Material and labour for preparation of old platered surface of wall after removal of existing treatment and applying two coats of of water based weather proof exterior emulsion paint over a coat of alkali resistance primer over 2 mm thick exterior wall care putty including all necessary scaffolding,complete all as specified and directed. Note :- (i) Painting work shall be carried out acoording to Smart Painting procedure mentioned in PS (ii) Painting work shall be carried out directly through a paint manufacturer as approved by GE or their approved applicator. (iii) After completion of work approved paint manufacturer or their approved applicator shall submit warranty for one year on workmanship and warranty on product as applicable.

Material and labour for preparation of new platered surface of wall and applying two coats of weather proof exterior emulsion paint over a coat of alkali resistance primer over 2 mm thick exterior wall care putty including all necessary scaffolding,complete all as specified and directed. Note :- (i) Painting work shall be carried out acoording to Smart Painting procedure mentioned in PS (ii) Painting work shall be carried out directly through a paint manufacturer as approved by GE or their approved applicator. (iii) After completion of work approved paint manufacturer or their approved applicator shall submit warranty for one year on workmanship and warranty on product as applicable.

Supply and fixing Steel window/ventilators fixed type, complete with glazing bars including taking down old steel window/ventilators complete all as specified and directed.

Material and labour for 4.8mm thick sheet glass, ordinary quality obscured or frosted on one side and glazing with oil putty in square exc 0.5 Sqm in each pane, complete all as specified and directed

Material and labour for preparation of new steel and iron surfaces of any description, over 10cm in width or girth not otherwise described and applying two coats of synthetic enamel paint over a coat of primer complete all as specified and directed..

Disconnecting existing water tanks exc 500 & n.exc 1000 ltr of capacity, setting aside (or lowering if required) for repairs,etc and hoisting if required re-connecting and re-fixing in position after cleaning and removing all scale and dirt etc from tank and from mouths of circulating pipes etc all as specified & directed. (Note : Date of cleaning shall be painted on the surfce of PVC tank and cost of the same shall be included in quoted rate).

All as per item No 26 here-in-before but exc 1000 Ltr but not exc 2000 Ltr capacity complete all as specified and as directed.

Supply, hoisted and fixing in position 1000 Ltrs capacity rotational moulded polyethylene water storage tank, double layer construction, ISI mark (cylindrical vertical with closed top) hoisted and fixed in position with and including 20 mm dia GI pipe medium grade washout pipe 450 mm long with plug and 20 mm dia GI pipe medium grade overflow pipe 600 mm long with fittings complete all as specified and as directed

All as per item No 28 here-in-before but 2000 Ltr capacity complete all as specified and as directed.

Supply and fixing in repairs 25 mm Ball valves high pressure of HDPE, with polythene float and flynut complete, screwed for iron pipe or brass ferrule complete all as specified and directed.

Taking up or down 25mm bore steel tubing and including cleaning for refixing or removal to store complete all as specified and directed.

All as per item No 31 here-in-before but 40 or 50mm bore of pipes complete all as specified and directed

Supply and fixing 25mm bore steel water tubing medium grade, galvanised with all fittings complete and fixed to wall and ceiling or laid in floors complete all as specified and directed

All as per item No 33 here-in-before but 40mm bore of pipes complete all as specified and directed

Supply and fixing in repair 25 mm bore gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed.

All as per item No 35 here-in-before but 40mm bore complete all as specified and directed

Cutting of the construction joints in 'V' shaped grooves, with depth and width upto 50 mm complete all as per manufacturer instruction.

Material and labour for patching the entire "V" shaped grooves with cement, admixed with quick setting compound and cover up the exposed area with plaster material admixed with quick fix material and cement complete all as specified and directed. Make : Fosroc Cebex 100 or quivalents solutions SIKA/STP/HINDCON as approved by GE.

Material and labour for grouting with free flowing grout mix, injecting the cement mixture with intraplast EP through and invluding PVC nozzle by high pressure injecting pump complete all as manufacturer instruction compelte all as specified and as directed. Make : Fosroc Cebex 100 or quivalents solutions SIKA/STP/HINDCON as approved by GE. Note : Cost of PVC nozzles shall deemed to be included in quoted rate

Material and labour for cleaning of internal surface of RCC water tank by removing all algae,dirt,sludge etc and coating entire inner surface of water tank with cementitous acrylic coating and testing the tank by filling with water by keeping the water inside the tank for more than 12 hours complte all as manufacturer instruction . Make : Fosroc Brushbond or quivalents solutions SIKA/STP/HINDCON as approved by GE.

Material and labour for coating the entire inner surface of water tank with 2 coats of potable grade water base epoxy water proofing coating of 200 micron, (after water testing found satisfactory water from the tank to be made empty) complete all as manufacturer instruction compelte and as specified and as directed. Make : Fosroc Nitocote CM 210 or quivalents solutions SIKA/STP/HINDCON as approved by GE. Note:- For Sl No 37 to 41 - Work will be carried out as per manufacturer instruction and by manufacturer rep only.

Taking down of Old unserviceable steel tubing of size 50mm dia complete all as specified and directed.

Demolition of cement concrete (un-reinforced) of any description and in any position not otherwise specifically provided for complete all as specified & directed.

Supply and fixing in repair of air termination single pointed aluminium rod, 12mm dia and 300mm long, fixed with Earthing strip for earth conductivity to gound complete all as specified and directed.

Supply and fixing in repair test point terminal block made of gun metal or phosporous broxze of size 75mm x 75mm x 25mm, drilled and screwed including 3 Nos, 8mm dia and 25mm long hex screws complete all as specified and directed.

Supply and fixing Junction box made out of 2mm thick mild steel sheet including applying two coats of synthetic enamel paint over a coat of zinc chrome primer duly spray painted of size not less than 20cm x 20cm x 15cm with locking arrangements with provision of earthing strip entry and exit, fixed at wall with GI bolts, nuts and washers (of suitable size), incl taking down existing Junction Box complete all as specified and directed.

Supply and fixing in repair Galvanised iron strip 32mm x 6mm fixing on Porcelain insulator at one mtr interval with clamp, screw etc for roof & down conductor above the ground level complete all as specified and directed. Note:- Porcelain Insulator are measured separately.

Supply and fixing 50 mm bore steel water tubing medium grade, galvanised with all fittings complete and fixed to wall and ceiling or laid in floors for fixing at roof for Air termination rod complete all as specified and directed

Supply and fixing Porcelain Insulator of size 75mm with arrangements including taking down old one complete all as specified and directed.

Materials & Labour for Earthing complete with copper earth plate electrode 600 mm×600 mm.×3.15 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to copper strip, 20x3 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion complete all as specified and directed.

Note: Schedule of credit (SCHEDULE OF CREDIT) amount of Rs ________ mentioned on Page No ____ shall be deducted from the total quoted amount of BOQ.

M/S KANCHAN KANTI BAKSI

PEARL CORPORATION

NIRMAL SALES CORPORATION

TOTCO

Prahalad Rai