Necessary Precautionary Measures Towards Stoppage Of Water Seepage From Roof Top At G Block Unnayan Bhawan, Kmda, Saltlake, Kol 91.- 1 Uprooting and removing plants from the surface of walls parapet etc and making good damages. (Repairing of damages to be paid separately).(b) Medium size plant of girth of exposed stem above 75 mm.but not exceeding 150 mm. lift upto 6 mtr. 2 Making one set of scaffolding only for replacing glass panels, painting,uprooting plant and another repairing works of building and S&P works for external works only with 10 cm. dia bamboo as main posts at the rate of 1 metre centre to centre and 7.5 cm. dia bamboo ties @ 0.75 metre apartfitting and fixing with necessary coir, nails etc. as per direction of the Engineer-incharge.3.90 metre height. 3 Upto height 7.5mtr 4 Upto height 11.1 mtr 5 Upto height 14.7 6 Labour charges for shiftingscaffoldingin proper position as directed to the EIC .3.90 metre height 7 Upto height 7.5mtr 8 Upto height 11.1 mtr 9 Upto height 14.7 10 Cleaning the concrete surface by removing dirt and debris, marking defective locations and removing loose concrete by careful stripping untill hard surface is exposed, cutting the concrete to regular shape, wire brushing the exposed surface and removing debris from site complete as per direction of the Engineer - in - Charge. 11 Cleaning the exposed reinforcement preferably upto full diameter by wire brush, applying two coats of polymer based rust removing compound left for 24 hours, removing the coating and then applying two (2) coats of polymer modified anti corrosive protective coating formulated to inhibit the corrosion of reinforcement as per manufacturers specification] 12 Applying epoxy based reactive joining agent for joining the old concrete withfresh concrete to be applied within manufacturers specified time as permanufacturers specification. (0.4 Kg / m² of concrete surface). 13 Removing corroded worn out portion of reinforcement (when the area of bar is damaged by more than 25%) by cutting and replacing the same by a newplain round bar of requisite diameter by binding with required lap / welding with old bar, including cost of reinforcement, complete in all respect including removing unserviceable materials from site as per direction of theEngineer - in - charge. Note : Payment on weight (Kg.) of newreinforcement. 14 Stripping off worn out plaster and raking out joints of walls, celings etc. upto any height and in any floorincludingremoving rubbish within alead of 75m as directed. 15 Removing loose scales, blisters etc. from old painted surface andthoroughly smoothening the surface to make the same suitable for receiving fresh coat of paint. 16 Repairing crack in wall by cement grouting (1 : 2) including widening the crack on the surface (into V section) cleaningand packing the same with cement mortar (1 : 2) and finishing off to match with adjacent surface.(Cement-69 Kg/100 m) 17 Applying 2coats of bonding agent with synthetic multi functional rubber emulsion having adhesive and water proofing properties by mixing with water in proportion (1 bonding agent :4 water :6 cement) as per Manufacturers specification [For Cement to be supplied by the contractor] 18 Ordinary Cement concrete (mix 1:2:4) with graded stone chips (6mm nominal size)excluding shuttering and reinforcement,if any, in gound floor as per relevant IS codes.Pakur variety.3rd floor. 19 Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/stagingwhere necessary (Ground floor).[Excluding cost of chipping over concrete surface]With 1:4 cement mortar(a) 20 mm thick plaster3rd Floor 20 Renewing expansion joint with Elastomeric Polysulphide Sealant of gap size 50mm X 25mm Including cleaning of the expansion joint thoroughly, mending of edges & surface, placing 50mm dia Backer rod as back up material with the cost of materials, labours, & all other incidental charges as per manufacturers specification & direction of Engineer-incharge. 21 Hire and labour charges for 75 mm dia bamboo railing on Jhau/Eucalyptus or other approved timber posts 1.4 m above G.L. and 0.60 m below G. including tying strongly with coir ropes and boring holes for posts in any soil/ concrete surface/Bituminious surface packing the sides etc including cost of carriage of all materials and labour complete including cost of restoration to the damages of the ground to its original condition as per direction of Engineer in charge after removing the barricade. (Cost of restoration would be paid separately.)75mm. dia bamboo railing & 125mm. diaJhau/Eucalyptus/other approved timber posts @ 1.60m apart (i) Railing with 4 rows 22 Rendering the Surface of walls and ceiling with White Cement base WATER PROOF wall putty of approved make & brand.(1.5 mm thick)i)Ground floor3rd floor 23 Applying Exterior grade Acrylic primer of approved quality and brand on plastered or cencrete surface old or new surface to receive decorative textured(matt finish)or smooth finishacrylic exterior emulsion paint including scraping and preparing the surface throughly, complete as per manufacturers specification and as per direction of the EIC. Two coat3rd floor 24 Protective and Decorative Acrylic exterior emulsion paint of approved quality, as per manufacturers specification and as per direction of Engineer-in-Charge to be applied over acrylic primer as required. The rate includes cost of material, labour, scaffolding and all incidental charges but excluding the cost of primer. In Ground floor (Two Coat)Normal Acrylic EmulsionGround floor.3rd floor 25 Taking out old damaged tarfelt from theroof, parapet etc.preparing theroof surfacesbyremovingall spoils, blisters,moss etc.from the working site and disposal of the samebeyond the compound and cleaning the site in all respectasper direction of Engineer-in-Charge3rd floor 26 Supplying & laying 3mm thick pre-fabricated plastomeric water proofing membrane conforming to EN 12311-1& ASTMD5147, manufactured with Atactic Poly Propylene (APP) modified premium grade asphalt ,specially reinforced with non-woven polyester core with polyester reinforcement @160gms pers qm & both faces covered with thermo-fusible polyethylene film/MineraL on top face over a coat of primer@ 0.40 lit/sqm of manufacturers specification on smooth,clean dry surface preparedwherever required.Lap joint shall be provided of 75 mm in longitudina l&100 mm in transverse direction and fused using LPG/ Propane torch employing extra care ensuring full bondage, complete removal of entrapped air and sealing edges into grooves in appropriate manner as per direction of Engineer-in-chargall complete including materials,labour and applicable taxes. (Payment shall be made on the basis of finished surface area.). Membrane Property: Softening Point > 150 deg C, Cold Flexibility < -6 deg C, Tensile Strength, N/cm : 600 (longitudinal), 450 (transverse), Tearing Strength, N: 300 (longitudinal), 200 (transverse)3rd floor 27 Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal /Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge 28 Add @ 18 % GST on Sl. No. 1.00 to 12 29 Add @ 1 % CESS on Sl. No. 1.00 to 13
