REPAIRS TO ARREST SEEPAGE, LEAKAGE IN WALLS, RCC CHAJJAS, CANTILEVERS ETC IN TECHNICAL AREA AT CVRDE AVADI

Note for Item No. 1 to 6 :- a)The work shall be carried out in building at height from ground floor to 4th floor. b) The rate quoted shall included necessary ladder, safety equipments / accessories required for the work.

Material & labour repairs to RCC ceiling/Column/Beam, pressure grouting / injection grouting with plasticized, non shrink cement / mortar admixture applied in and around areas showing seepage on roof slab, column beam junctions and other location using shaligrout IP / EI from STP Ltd / Dr Fixit Epoxy injection / EPCO-K-HP250 OF M/s Krishna Conchom. (Pressure grouting shall be done at 0.30 m intervals using 12 mm dia nozzle, depth of hole shall be minimum 50 mm for rack slabs and 100 mm for beams / Columns) Rate include cost of labour, materials, tools, plant, water / Electricity charges).

Material & labour for Chipping the cracked / loose spalled concrete on the soffit of slab / beam using proper tools like hammer, chisel etc. and removing the loose particle completely duly cleaning it with wire brush and removing the dust etc. complete until to reach sound good concrete surface and keeping the surface dry and removing the debris and dumping the same at the nominated locations as directed by the Engineer in charge with all lead and lift etc. Complete all as specified and as directed

Material & labour cleaning the existing deteriorated reinforcement by sand blasting / mechanical rotary brushes wherever reinforcement is corroded by more than 30% providing extra reinforcement of new cold twisted CRS bars including cutting, bending and straightening and placing in position complete in all levels and if necessary welding the new bars with the existing. Rods by over lapping with all lead and lift etc. Complete and as directed by the Engineer in charge.

Removing the loose particles rust / mild scale deposits completely duly cleaning it with wire brush / crush sheet etc. and removing the dust etc complete over the old concrete surface and supply of zinc rich epoxy primer NITOZINC PRIMER @ 10 Sqm/ ltr and mixing mechanically until it is homogenous with all lead and lift etc. complete and as directed by the Engineer in charge.

Apply one coat of rust remover chemicals such as feovert from Krishna conchom/ Rust remover from Dr Fixit/ shali Rustoff from STP @ 20 Sqm/ Ltr on steel surface including all lead and lift etc completed all as directed by Engineer in Charge.

Repair to slab & beam using structural grade ready mixed epoxy mortar such as EPCO-KP-HP-350 Krishna Conchom / Epoxy repair mortar from Dr Fixit / Nitobond AR & RenderocS2 of FOSROC. After surface preparation the substrate should be thoroughly soaked with water (any excess being removed) Prior to applying one coat of Nitobond SBR and scrubbing it well into the surface. Renderoc S2 can be applied as soon as the Nitobond AR become tacky. Place about 2.75 litres of drinking quality water in the mixer and, add the supplied liquid polymer part and mix with the machine in operation, add Renderoc S2 powder and mix for 2 to 3 minutes apply the mixed Renderoc S2 to the prepared substrate with a gloved hand or trowel. First work a mini layer of the mortar on to the layer. Thoroughly compact the mortar on to primed substrate. Where thicker sections are required, the surface of the intermediate layer should be scratch keyed and primed with Nitobond AR. Repriming with Nitobond AR and further application of Renderoc S2 may proceed as soon as this layer has set. Renderoc S2 is finished by striking off with a straight edge and closing with a steel float. Applying one coat of acrylic curing membrane NITOBOND AR mixed with water in the ratio 1:1 with all lead and lift etc, complete and as directed by the Engineer-in-Charge.

Taking down cement plaster on brick walls including racking out joints, hacking for key scrubbing down with water etc.

Material & labour for rendering in CM 1:4, 15mm thick on external surfaces of concrete and brick masonry using water proofing compound @ 3% by the weight of cement and finished the surfaces even and smooth without using extra cement all as specified and directed by Engr-in-charge. Note :- The work shall be carried out in building at height from ground floor to 4th floor. b) The rate quoted shall included necessary ladder, safety equipments / accessories required for the work.

Material & labour for Rendering 10mm thick Cm 1:6 on fair face of brick walls or concrete surface finished fair and even without using extra cement.

Material & labour for 5mm thick rendering in CM 1:3 on ceiling of roof slab and finished the surfaces even and smooth without using extra cement all as specified

Material & labour for preparation of newly plastered surfaces of walls and applying two coats of distemper oil emulsion complete all as specified and as directed by Engr-in-Charge.

Material & labour for applying 3mm thick internal wall care putty complete all as specified

Material & labour for preparation of new decorated surfaces and applying three coat of white wash on ceiling all as specified and directed by Engineer in charge.

Material & labour for preparation of new plastered surfaces of wall and applying two coats of exterior weather coat paint including one coat primer all as specified and directed by Engineer in charge. Note :- The work shall be carried out in building at height from ground level to 13.0 meter. Note :- The work shall be carried out in building at height from ground floor to 4th floor. b) The rate quoted shall included necessary ladder, safety equipments / accessories required for the work.

Material & labour for preparation of old surfaces of walls and applying two coat of exterior weather coat paint complete all as specified and directed by the Engineer-in-Charge. Note :- The work shall be carried out in building at height from ground floor to 4th floor. b) The rate quoted shall included necessary ladder, safety equipments / accessories required for the work.

Disconnecting existing tanks, setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position including cleaning repairing and providing new outlet connection of required size complete for capacity exc 250 but n.exc 500 ltrs all as specified and directed.

Material & labour for writing letters or figures (Block, Roman, Italic or Indian) n.exc 30cm high with best quality synthetic enamel paint complete all as specified and directed.

Material & labour for Writing stops, commas, short lines, dashes, hyphens, brackets etc with best quality synthetic enamel paint complete all as specified and directed.

Supply & Fix PVC ball valves 20mm dia bore, high pressure, with polyethylene float and fly nut complete, screwed for iron pipe or brass ferrule all as specified and as directed by the Engineer-in-Charge.

Taking down or up old 20 mm dia steel tubing galvanised and connections including cleaning for refixing .

Taking down or up old 25 mm dia steel tubing galvanised and connections including cleaning for refixing .

Supply & Fix Galvanized steel water tubing 15 mm dia bore, medium grade including provision of all fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc fixed complete to walls and ceilings all as specified and as directed by the Engineer-in-Charge.

Supply & Fix Galvanized steel water tubing 20 mm dia bore, medium grade including provision of all fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc fixed complete to walls and ceilings all as specified and as directed by the Engineer-in-Charge.

Supply & Fix Galvanized steel water tubing 25 mm dia bore, medium grade including provision of all fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc fixed complete to walls and ceilings all as specified and as directed by the Engineer-in-Charge.

Refixing of old Galvanized steel water tubing 15 mm dia bore, medium grade including provision of all fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc., fixed complete to walls and ceilings all as specified and as directed by the Engineer-in-Charge.

Refixing of old Galvanized steel water tubing 20 mm dia bore, medium grade including provision of all fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc., fixed complete to walls and ceilings all as specified and as directed by the Engineer-in-Charge.

Refixing of old Galvanized steel water tubing 25 mm dia bore, medium grade including provision of all fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc., fixed complete to walls and ceilings all as specified and as directed by the Engineer-in-Charge.

Demolition of cement concrete in any position floors(sunken floor) / roof surfaces including removal of old tar felt, plastering, concrete mugs, tiles etc up to the original RCC roof level including removal of debris from site 1 Km away from Defence land all as specified and directed by Engineer-in-Charge.

Material & labour for cement concrete (1:5:10) type D2 using 40mm stone aggregate as in foundation filling and mass concrete complete all as specified and directed by Engineer-in-Charge.

Material & labour for applying two coat of polymer modified cementitious water proofing coating as per manufacturer's instruction to bottom and vertical sides upto finished floor level +100 mm height thickness of each layer shall be 1mm. When second layer is sticky, coarse sand spray shall be carried out for the bottom and vertical surface including all waste pipe and junction shall be sealed with epoxy putty complete all as specified and as directed by the Engineer-in-Charge.

Material & labour Rendering 10mm thick in fair faces of brick work or concrete surfaces in CM 1:4 finished even and smooth with out using extra cement but using water proofing compound (3% of weight of cement) all as specified.(WPC will be measured separately)

Supply & Fix GI spouts 40mm dia projecting at least 20 cm clear of the wall.

Material & labour for PCC 1:2:4 TYPE B0 using 12.5 mm graded aggregate (with mixing 2% WPC by weight of cement) on roof as levelling course, kerbs or mud stops, rounded or chamfered on edges complete all as specified and directed by Engr-in-Charge. Note:- WPC Shall be measured and paid separately.

Material & labour for Water proofing treatment with water base polyurethane modified dispersion shall be carried out all as specified as under: - (a) Mechanical cleaning of surface to make it free from any bituminous residue / dirt. Oil and grease etc all as directed by GE / Engineer-in-Charge. (b) Cracks treatment by cutting open cracks and cleaning it from dirt loose materials etc and filling with polyurethane based sealant with and including application of PU based primer all as directed by GE / Engineer-in-Charge. (Contd..)

(c) Applying water based polyurethane modified dispersion (single component cold applied, non toxic, VOC complaint) in 03 coats including 01 coat of primer of same material after dilution of water at 50% or specific primer matching same material as per manufacturer specification and as directed by GE / Engineer-in-Charge. Properties of polyurethane based chemical shall be as follows: - (i) Highly elastic (ii) UV resistance (iii) Adhesion to concrete > 1N/Sqmm. (iv) Tensile strength - not less than 2.0N/Sq.mm for free film. (v) Elongation - not less than 300%. (vi) Solid content by weight - not less than 60%. (vii) Air / water permeability BSEN 12390 at 5 bar - 72 hours should be NIL and minimum dry film thickness of water proofing membrane must be 1.0mm. (viii) Accelerated weathering (ASTM 453): Pass 1000 hours.

(ix) Reaction to fire - non inflammable. Note: (i) To be applied by the manufacturer's authorized applicator only. Contractor has to provide manufacturer's test certificate for the above mentioned technical parameters and purchase vouchers. (ii) Removal of existing treatment to be paid separately. (iii) Roof top to be ensured to avoid water ponding. (iv) For accessible terrace and inaccessible terrace, 300mm height of vertical surface / parapet wall to be treated with same specification of slab. Make: Bostik, Berger, Fosroc, Asian Paints, Dr Fixit or any other make approved by E-in-C's Branch for PU based water proofing treatment.

Supply only Integral waterproofing compound

Supply & Fix vitreous china squatting pan "ORISSA' pattern or size 680x470 mm white with integral foot rest etc (Excluding flushing cistern and flush pipe) complete including trap set in cement mortar & provision of lime concrete bedding and making good to floor, fixed in repairs all as specified.

Supply & Fix vitreous china wash down water closet (pedestal pattern) white including connecting to trap and to flushing pipe anti syphonage pipe etc incl seat cover complete set in concrete flush pipe to closet including all joints and making good floor and wall all as directed.

Supply & Fix PVC flushing cistern 10 ltrs and flush pipe syphonic action type low level with inlet ball valve, float and handle including brackets of approved Make Parry ware slim line,Cera,Hindware etc

Supply & Fix Chromium plated cast copper alloy health faucet for 15mm dia incl 1.25 meter flexible telephonic tube and ABS wall hook incl making connection and fixed in position Complete all as specified and directed.

Supply & Fix vitreous china wash basin size 550 x 400mm including 32mm dia PVC waste coupling bore size and brackets in repair.

Material & labour PCC 1:2:4, type B1 using 20mm graded aggregate laid to slope 25mm thick and finishing cement concrete surface even and smooth without using extra cement.

Dismantling of floor hearth or wall tiling of any description including cement mortar bedding (but not backing),removing serviceable tiles to store & rubbish off the premises complete all as specified and as directed by the Engineer-in-Charge.

Material & labour Non skid ceramic coloured tiles 7 to 8mm thick area of each tiles exc 0.06 Sqm but not exc 0.11 Sqm in floors etc and jointed in neat cement slurry including 15 mm thick screed in cement mortar (1:6) pointed in white cement with pigment to match the colour of tiles complete all as specified and as directed by the Engineer-in-Charge.

Material & labour Non skid ceramic coloured tiles 7 to 8mm thick area of each tiles exc 0.11 Sqm but not exc 0.18 Sqm in floors etc and jointed in neat cement slurry including 15 mm thick screed in cement mortar (1:6) pointed in white cement with pigment to match the colour of tiles complete all as specified and as directed by the Engineer-in-Charge.

Material & labour for Rendering 10 mm thick CM 1:4 as in backing coat on fair faces of brick walls or concrete surface finished fair and even.

Material & labour glazed ceramic coloured 300x450x7 mm thick on vertical surface such as skirting / dados set and jointed in neat cement slurry and pointed in white or coloured cement to match the shade complete all as specified.

Supply & Fix 75 mm bore PVC SWR pipe single socketed in any length with rubber ring joints fixed to wall for soil waste complete al as specified and as directed.

Supply & Fix 110 mm bore PVC SWR pipe single socketed in any length with rubber ring joints fixed to wall for soil waste complete al as specified and as directed.

Supply & Fix PVC(SWR) bends in 75mm dia any radius

Supply & Fix PVC(SWR) bends in 110mm dia any radius

Supply & Fix PVC(SWR) shoe in 110mm dia any radius

Supply & Fix 75 mm bore PVC (SWR) junction single, (Single T) equal or unequal

Supply & Fix 110 mm bore PVC (SWR) junction single, (Single T) equal or unequal

Supply & Fix in repair Gun-metal, globe or gate valves, with iron wheel head, screwed both end for iron pipe and fixed for 20mm bore pipe all as specified and directed by Engineer-in-Charge.

Supply & Fix in repair Gun-metal, globe or gate valves, with iron wheel head, screwed both end for iron pipe and fixed for 25mm bore pipe all as specified and directed by Engineer-in-Charge.

Supply & Fix in repair cast copper alloy stop cock / angle cock chromium plated fancy type screwed down, high pressure screwed ends for 15mm pipe or for unions and all complete

Supply & Fix in repair pillar taps 'Fancy type" cast copper alloy with capstan heads chromium plated screwed down high pressure with or without lettered hot or cold with long screwed shanks and fly nuts screwed for 15mm dia iron pipe

Supply & Fix in repair for Chromium plated brass bib tap cast copper alloy, fancy type ,screwed down, screwed for 15mm dia iron pipe and all complete

Supply & Fix in repair plastic water closet seat cover, white colour, closed pattern with, flat bottom, and cover and mild steel chromium plated or aluminised hinging device.

Supply & Fix in repair PVC(SWR) multi floor trap plain with grating including jointing with solvent cement 75mm dia

Supply & Fix in repair PVC connection 15mm size with PTMT nuts of length 450mm long as directed..

Supply & Fix in repair Waste fitting brass chromium plated for glazed ware WHB/ Sink with 32/40 mm dia.

Complete removal of vegetables, uprooting of trees / plants on the surface of buildings roofs/ walls etc and applying pesticides as per manufacturing instructions complete all as specified and approved by Engr-in- Charge.

Supply & Fix Stop valves(15 mm), cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, fancy type, chromium plated with long shank and cup (concealed type) screwed both ends for iron pipe or for unions and fixed complete all as specified and directed.

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