REPAIR AND MAINT OF OHT AND ALLIED WORK UNDER AGE B/R-II UNDER GE BABINA

Amount

Note for item number 2 to 15- MEMORANDUM OF UNDERSTANDING- The Tenderer shall submit the memorandum of understanding (MOU) from the manufacturer to execute the items with trained persons for application within 15 days from the date of commencement of the work as per date mentioned in work order No.1. If he fails to submit MOU within 15 days he will not be allowed to commence the work. No extensions of time will be granted for the period lapse in submission of MOU. (B). Bidder must submit the authorized applicator certificate at the time of awarding the Contract. (C). Bidder must have the work experience of OHT repair of contract value of 50 Lacs as single work order, or two work orders of value of 25 Lacs in last two years. (D). Applicator of structural repair has to ensure the warranty for next 10 years of the work executed

Dewatering of existing water tank for cleaning the inside surfaces of the tank by scraping down walls & bottom surfaces using steel wire brushes to remove all disputation/ Fungus & other micro organisms etc. And taking out and removing sedimentary loose dirt/mud sludge vegetation and other foreign material completely from the tank by using steel wire scraper (Punji) and steel brushes (No hammering shall be allowed) and disposal of all the waste/spoils to a distance out of MOD land at a place as directed / marked by local bodies and washing repeatedly the inside surfaces of tank with water and washing with rebukes solution and clean water thoroughly to the entire satisfaction of Engineer-in-Charge and directed. Note- This item shall be undertaken by the authorized rep. of manufacturer only.

M & L for dismantling down decrepit existing unserviceable cement plaster loose/unsound debilitate cement concrete of any description and in any position from existing external/Internal surfaces of RCC/slab/beam/columns/RCC fascias etc. average profundity 15 mm (Max. height up to 25 mtr. from existing ground level) with power driven pneumatic chisel carefully and disposal of unserviceable material ie Debris and rubbish outside MOD land at placec specified by local bodies upto irrespective of lead including cutting of all edges, making square shoulders of the cavities roughening the smooth surfaces, abrade out/expel corrosion all loose/scale/rust etc from the observed reinforcement by applying rust remover of approved make and cleaning the steel reinforcement properly, and after that applying single component cementations on observed reinforcement surfaces to create a continuous film not less than 1 mm thick and preparing the surface to get epoxy grout mortar including providing necessary proportions, bracing and runners to relieve the members from the load coming on it including scaffolding with working platform as required and as per design and pattern including preparing the surface to coordinate with the existing surface, complete all as specified and directed by Engineer-in-Charge using alkaline based rust remover for corroded steel structure and concrete remover cleaning etching Agent Chemical make of Thermax/Torchtar Ltd./Ooms Polymer Ltd. of cementitious corrosion inhibiting using primer mucis protezione ferro mono and Anti corrosive primer exposed steel and concrete surface Chemical Make of Thermax/Torchtar Ltd./Ooms Polymer Ltd. Complete all as specified and directed by Engineer- in -charge. Note: - This item shall be undertaken by the authorized rep of manufacturer only.

M & L for Timber form work of adequate strength to sides and soffits of lintels, beams columns, shelves, Chajjas including overhangs of OHTs irrespective of heights etc for fair finished flat surface, complete all as specified and directed by Engineer-in-charge

M&L for drilling hole in RCC using drilling machine up to a profundity of 15 mm and 18 mm dia, expel dust, etc by vacuum cleaner and blowers, providing and fixing of heavy grade GI pipe nipple 15 mm dia, 50 mm long, @ 1.0 Mtr. C/C in both direction and injection cement slurry blended with using integral water proofing liquid admixture for concrete mortar and integral water proofing compound for cement based concrete and mortar Chemical Confirms to IS 2645-2003. having specific gravity 1.1-1.2 gms/cc, chloride content Nil as per IS 2645-2003 & using Acrylic polymer based bonding agent and acrylic emulsion cement modifier and water based concrete bonding agent chemical make of Thermax/Torchtar Ltd./Ooms Polymer Ltd.having specific gravity of 1.02 using expending power grout admixture with plasticizing and grout and plasticized expending grout admixture Chemical cementations based plasticized grout admixture cement bag through nipple and closing ends nipple epoxy putty/silica jelly after injecting the chemicals mixed with cement slurry complete all as specified and directed by engineer in charge. Note:- This item shall be undertaken by the authorized rep of manufacturer only.

M & L for applying two coats of water proofing and protective coating on Internal walls, floors & ceiling etc. make of Thermax/Torchtar Ltd./Ooms Polymer Ltd. industrial with mucis properties - high performance cement using cementations two components acrylic modified elastomeric water proofing coating with corrosion protection for concrete and masonary and elastomeric water proofing membrane coating for concrete and masonary surfaces chemical complies to ASTM D4541 ASTM C836, DIN 1.048p 5 ASTC D412 having shore hardness D Scale = 20 Non Volatile, low Temperature Feasibility Test, Tensile strengh > 0.4 Mpa, Elongation > 20% Cleaning. mixing using slow speed electric drill and application of 2 coats complete M & L for 10 mm thick polymer modified rendering in cement mortar 1:4 mixed with using integral water proofing liquid admixture for concrete mortar and integral water proofing compound based concrete and mortar Chemical conforming to IS 2645 - 2003 of Thermax/Torchtar Ltd./Ooms Polymer Ltd. as approved by Engineer-in-charge @ 200 mI /50dg bag of cement as per manufacturer's instructions over a coat of using Acrylic polymer based Bonding Agent and acrylic emulsion cement modifier and water based cement bonding agent chemical of Thermax/Torchtar Ltd./Ooms Polymer Ltd. having specific gravity of 1.02, not less than 8% by weight of cement of as per manufacture's instruction for internal and external surface of RCC Roof / Slab/Beam/Column/Facias/any brick surface etc. Top of the Surface shall be furnished even and smoother with extra cement including all necessary formwork, timbering, planting and shuttering, scaffolding etc and finishing the surface of match with the existing surface complete all as specified and directed by Engineer-in-Charge. Note: - This item shall be undertaken by the authorized rep of manufacturer only.

M & L for fixing welded MS wire mesh weighing not less than 1 Kg/Sqmt and applying using mucis protezion ferro mono primer and Anticorrosive primer uncovered steel and concrete surface chemical (Single component, cementitious corrosion inhibiting primer) of make Thermax/Torchtar Ltd./Ooms Polymer Ltd.on uncovered steel reinforcement and wire mesh having mixed density of 2.01.02.05, adhesive on bond strength- 1 N/mm touch drying time of 10-15 minutes and applying 15 mm thick cement mortar 1:4 with using integral water proofing liquid admixture for concrete mortar and integral water proofing compound for cement based concrete and mortar chemical make of Thermax/Torchtar Ltd Ooms Polymer Ltd.100/L 1.1-1.2 gm/cc, chloride content: nil as per IS 2645-2003 & using acrylic polymer base bonding agent and acrylic emulsion modifier and water based concrete bonding agent chemical STD having specific gravity of 1.02) of Thermax/Torchtar Ltd Ooms Polymer Ltd. in ratio as per recommendation of manufacture total chemical not less than 8 % by weight and providing rendering 20 mm layer of mortar (1:2) single component polymer modifier using 5f single component thixopropic fibre reinforced polymer modified repair mortar 1:1:4 make of Thermax/Torchtar Ltd./Ooms Polymer Ltd./ to achieve compressive strength of 15 N/mm in 1 Day, 25 N/mm in 3 days adhesion bond strength of > 2 N/mm providing rendering 10 mm thick in cement mortar (1:1)and all as specified and directed by Engineer-in- charge. Note: - This item shall be undertaken by the authorized representative of manufacturer only.

M & L for providing and filling epoxy putty into RCC crack after opening up RCC cracks in V-groove manner approximate 10 mm wide & 10 mm deep using mechanical cutter, properly cleaning the same to remove loose dust. Dirt etc. and filling the same using Epoxy resin based putty and resin jointing and repair compound Chemical the solvent free, thixotropic Epoxy resin based putty having 100% solid contents mixed density of 1.6 g/cc, compressive strength - 50 N/mm2, pot life of 40 minutes at 27 degree c, after 8 hours drying it has to be recoated within 24 hours and finishing in line and level with existing concrete surface etc. complete all as specified and directed by Engineer in Charge. Make : Thermax/Torchtar Ltd./Ooms Polymer Ltd./ as approved Note:- This item shall be undertaken by the authorized rep of manufacturer only.

M&L for providing and applying two coat of using water based Aliphatic Protective anti carbonation protective and decorative coating for concrete and Masonary and Acrylic emulsion Sealer Coat Cum Primer chemical make of Thermax/Torchtar Ltd./Ooms Polymer Ltd. as approved, Having High performance Water Based aliphatic protective coating to uncovered concrete on masonary surface after proper surface Preparation, cleaning of dust, dirt etc. System should be application of Thermax/Torchtar Ltd Ooms Polymer Ltd. / – water based acrylic polymer primer cum sealer coating on prepared surface and application of 2 coats of using water based Aliphatic Protective anti carbonation protective and decorative coating for concrete and Masonary and interior exterior water base primer chemical make of Thermax/Torchtar Ltd./Ooms Polymer Ltd. at 260-280 microns DFT @ 200 microns WFT using suitable brush or roller complete all as specified and directed by Engineer-in- Charge. Note:- This item shall be undertaken by the authorized rep of Manufacturer only.

M&L for applying 2 coat of hygienic coating on inner walls & floors/bottoms of sump/OHT make Thermax/Torchtar Ltd./Ooms Polymer Ltd. Using solvent free epoxy resin based protective coating and high performance epoxy floor coating. Chemical Lining & potable water retaining structures having 100% solid contents, approved by CFTRI (USFDA-175.300) and complies eto ASTMD 2370, etc non-toxic cured film meets requirements as per is 9883: 1981. Coating to be applied after proper surface preparation to expel loose dust, dirt etc. cleaning, blended using slow speed electric drill and application of 2 coats at 200 microns DFT complete all as specified and directed by Engineer in Charge. Note:- This item shall be undertaken by the authorized rep of manufacturer only.

M&L for drilling hole chemical anchoring of reinforcement on existing columns/chajjas/Top beams/Bottom beams/Circular Column beams/Braces with Hiti HIT-HY 70 or equivalent in Thermax/Torchtar Ltd./OOMS Polymer Ltd./ STP Ltd, minimum hole depth 100 mm, steel bar 12 mm dia and drill bit dia 14 mm, complete all as specified and directed by Engineer-in-charge. Make: HT-V-R M12X150 OF Hilti using Polyster Resin based Anchoring material for Horizontal vertical & large Annular Applications and Anchosin P Fix.chemical of Thermax/Torchtar Ltd./Ooms Polymer Ltd. Complete all as specified and directed by Engineer-in-charge. Note:- This item shall be undertaken by the authorized rep of manufacturer only.

M&L for MS TMT bars 10 mm dia and over as in reinforcement cut to length. Bent to shape required including cranking bending spirally for hooping for columns, hooking ends & binding with and including MS annealed wire not less than 0.9 mm dia complete all as specified and directed by Engineer in Charge.

External Internal plastering of a hollow Bottom, septum Surface using single component thixopropic fibre reinforced polymer modified repair mortar of Thermax/Torchtar Ltd./Ooms Polymer Ltd. Fiber reinforced cementitious and shrinkage controlled polymer modified vertical and over head cementitious Repair mortar system. Chemical the product shall be a single component thixotropic fiber reinforced polymer modified repair mortar needing only addition of water at site which can be applied by trowel, It is reinforced with specially designed bean shaped, alkali resistant synthetic fibers for exceptional resistance to cracking. It is recommended for repair situations requiring application of mortar up to 10-20 mm thickness 1:1:4 in one layer. The product shall achieve a compressive strength of 11 MPa in 1 day & 30 MPa in 28 days and a minimum flexural strength of 6 MPa@7 days it shall have a tensile strength of and shall have a minimum bond strength of 2 MPa. Chemical manufactured by Thermax/Torchtar Ltd./Ooms Polymer Ltd. the exposed concrete surfaces shall be protected by a system comprising of single part water based acrylic emulsion sealer cum primer coat using Styrene butadine rubber based polymer bonding agent cum cement mortar SBR and a single part aliphatic acrylate, water based top coat using. INC, It shall be breathable, resistant to carbonation, chloride, sulphates, water vapour and other liquid driven mechanisms. It shall be UV resistant and not allow water to permeate. It shall have good adhesion and compatibility with concrete. The product to be used shall be SBR Prime INC System comprising of primer & top coat manufactured by Thermax/Torchtar Ltd./Ooms Polymer Ltd. complete all as specified and directed by Engineer-in-Charge. Note:- This item shall be undertaken by the authorized representative of Manufacturer only

M & L for curing of the surface using Maxcure CC 75 Waxed base concrete curing compound and water based concrete curing compound. Chemical curing efficiency: with the internationally recognized ASTM C309-90 standards including all tools and taketls complete all as specified and directed by Engineer-in-charge. (A) Adoption of necessary safety arrangement like safety belts. Ropes. Helmets, netting etc. which are required for safety of working at height etc. which are required for safety of working at height exceeding 3 to 25 mtr height shall be mandatory and deemed to be inclusive on quoted rates

Taking down the old serviceable and rusted suporting structure panel from 15 Mtr. Height of OHT of any type in any position and fixing suitable design new supporting structure on the roof of Over Head Tank and fixing new staircase made of mild steel supports including thicjness 4mm angle and width 1.5 inch MS pipe 25mm dia nuts and bolts etc. Completed all as specified and directed by the Engineer-in-Charge

M/s R.D. Company

Neeraj construction company

M/s Raghav Traders