REPAIR TO CERTAIN WATER SUPPLY INSTALLATIONS AT AF STATION GWALIOR

Amount

Dewatering of existing water tank cleaning the inside surfaces of the tank 50000 to 100000.00 gallon capacity by scraping down walls and bottom surface to remove all disputation / fungus other micro organisms etc using light hammer and wire brushes, taking out and removing sedimentaried loose dirt /mud sludge vegetation and other foreign material completly form the tank disposal of all the waste/spoil to out of MOD land at a place as per direction of Engineer-in-Charge and washing repeatedly the inside surface of tank with water and washing with rebukes solution and clean water thoroughly complete all as specified and directed.

M&L for taking down decrepit existing unserviceable cement plaster loose/ unsound debilitate cement concrete of any discription and in any position from existing external/internal surface of RCC slabs/beam/columns/RCC fasica etc average profundity 30mm (max hight upto 25 Meter form existing groud level) with power driven of pneumatic chisel and disposal of unservicable matrial i.e. debris and rubish outside MOD land as per direction of Engineer-in-Charge upto a 1.5km of lead including cutting of all edges making square shoulders of the cavities roughning the smooth surfaces, abrade out/expel corrosion all loose/scale/rust etc from the observed reinforcement by applying rust remover and cleaning the steel reinforcement properly and after that applying protezion ferro single component cementations on observed reinforcement surface to create a continous film not less than 1mm thick and preparing the surface to get epoxy grout motar including providing nesessary proportion bracing and runners to relieve the member from the load comming on it with working platform as required and as per design and pattern including preparing the surface to cordinate with the existing surface, complete all as specified and directed 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 cementitions corrison 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 completen all as specified and directed.

M&L for mending to crake after opening up in "V" groove manner covering the area of the 10cm from center line of crake with the depth of 10mm to 30mm and existing deteriorate surface of RCC roof slab,beams,columns, chhajja and similar work any position of existing surface upto top of tank from normal ground level by structural strengthning with expanding powered or dual shrinkage compensating non shrink free flow plasticized grout make of Thermax/Torchtar Ltd/Ooms polymer Ltd conforming to the requirement of BS EN 1504-3 class R4 complete all as specified and directed.

M&L for drilling hole in RCC using drilling machine upto a profundity of 15mm and 18mm dia,expel dust, etc by vaccum cleaner and blowers, providing and fixing of heavy grade GI pipe nipple 15mm dia, 50mm long @1.0mtr c/c in both direction and injecting cement slurry blended with using integral water proofing liquid admixture for concrete mortar and integral water proofing compound for cement based concrete and motar chemical confirms to IS 2645-2003 having specific gravity 1.1-1.2 gm/cc, chloride content nil as per IS 2645-2003 and 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 and plasticizing expending grout admixture chemical cementation based plasticized grout admixture cement by through nipple and closing ends epoxy putty / silica jelly after injecting the chemicals mixed with cement slurry complete all as specified and directed.

M&L for applying two coats of water proofing and protective coating on internal/external walls, floors and ceiling etc of Thermax/Torchtar Ltd/Ooms polymer Ltd. Industrial with mucis properties high performance cement using cementatious two components acrylic modified elastomeric water proofing coating with corrosion protection for concrete and masonary and elastomeric waterproofing coating for concrete and masonary surface chemical complies to ASTM D454/ASTM C836,DIN 1.048 p.5 ASTC D412 having shore hardness D scale=20 non volatile ,low temperature feasibility test, tensile strength > 0.40MPa ,elongation <20% cleanig, mixing using slow speed electric drill and application of two coats complete including, M&L for 10 mm thick polymer modified rendering in CM 1:4 mixed with intregal water proofing liquid admixture for cement mortar and integral water proofing liquid admixture for concrete mortar and integral water proofing compound based concrete and mortar chemical confirming to IS2645-2003 of Thermax/Torchtar Ltd/Ooms polymer Ltd as approved by GE @200 ml 50 KG bag of cement as per manufacture's instructions over a coat of using 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 then 8% by wt of cement as per manufacturing instruction to internal and external surface of RCC roof/slab/beam/column/tanks and brick surface etc.Top of surface shall be finished even and smooth with existing cement including all necessary form work timbering planking and shuttering etc and finishing the surface to match with existing surface complete all on specified and directed

M&L for providing and fixing welded MS wire mesh with anticorrosive primer mucis of Thermax/Torchtar Ltd/Ooms polymer Ltd on observed reinforcement on RCC roof/floors/ceilings/chajja/slab/balconies/ beam/columns/fasica/any brick work or stone inner or outer wall surface etc.weight not less then @1 kg / sqm applying 25mm thick one component chloride free thixotropic fibre reinforcement polymer modified alkali resistant synthetic fibre for exceptional resistance cracking complies repair with mortar in the ratio of 0.33 :1:4 mixed with cement sand mortar and with liquid water proofing admixture for concrete and mortar of make Thermax/Torchtar Ltd/Ooms polymer Ltd confirm to IS: 2645 -2003 having specific gravity 1.0 to 1.2 gm/cc chloride content nil as per IS: 2645 -2003 and acrylic emulsion based concrete bonding agent and cement modifier TM bond Ar. having specific gravity of1.02 to be applied on the surface before plastering of make Thermax/Torchtar Ltd/Ooms polymer Ltd in the ratio as per recommendation manufacturer total chemical not less then 5% by weight of cement complete all as specified and directed.

M&L for providing fixing welded MS wire mesh weight not less then @1 kg/sqm (with anti corrosive primer applied as mentioned in description in item no.6 and applying Rheoplastic non shrink corrosion resistant,high strength metallic aggregates compound on celing/beam/columns etc ,one component cementitous microconcrete thixotropic non shrinkage mucis having compressive strength on BS 4551 -80 thickness of 25-30 mm with 1:1:4 cement mortar and strength (ASTM C-109) 80 MPa @28 days,tensile strength 2.0 N/MM2 @ 28 days (ASTM C-348) 4MPa @28 days,Flexural strength 10N/MM2 (ASTM C-348) 11MPa@28 days,Young Modulus 27KN/mm2 (ASTM D-469),Expansion Characteristics(ASTM C-827-1987) unrestrained expansion upto 4%pressure to restrain plastic expansion approx 0.004 N/mm2 before pouring metallic aggregate it is recommended to apply granolithics E-RAISIN based solvent free concrete bonding agent in accurate proportion with complete homogenesity having mix density of 1.45 to 1.5 kg/ltr compressive strength(BS 6319 PART 2 ) 40 MPa at 7 days ,flexural strength (BS 6315 PART 3) 25MPa at 7 days ,tensile strength (BS 6319 PART 7) 15MPa at 7 days ,bending strength (ASTM C-881) 11N/mm2 at 7 days having an overlay time of 3 hours at 30°c make Thermax/Torchtar Ltd/Ooms polymer Ltd. pouring of micro concrete using suitable arrangement as required using pumping device for uniform flow of micro concrete.The side shuttering can be removed after 3 days and bottom shuttering after 7 days, ensuring proper bond between the micro concrete and the existing concrete substrate in complete including all tools ,plants,shuttering and tackels as directed by GE.

M&L for drilling hole chemical anchoring of reinforcement on existing column/beam/chajja/wall with hilti HIT-HY 70 BS-5080 or equivalent make Thermax/ Chemco system /Webac chemicals /STP ,maximum hole depth 100 mm ,steel bar 12 mm dia and drill bit size 14 mm with polyster resin based anchoring material for H/V/large annular applications or post installed bars or in accordance with bar thickness complete all as specified and directed .

M&L TMT bar 10 mm dia and over, cut to length bent to shape required including cranking,bending spirally for hooping of column,hooking ends and binding with mild steel wire(annealed) not less then 0.9mm or securing with wire clips complete all as specified and directed .

M&L for curing of the surface using viscosity alkalie reactive wax based concrerte curing compound. Chemical curing efficiency with the internationally recognized ASTM C 309 -90 a standards including all tools and taketls including adoption of neccesary safety arrangements like safety belts, ropes,helmets,netting etc which are required for safety of working at height exceeding 3 m to 25 m height shall be mandatory and beemed to be inclusive as quoted rates complete all as specified and directed .

Complete removal of existing tratment,washing rubbing of old treatment and applying two coat of using water based Aliphatic protective anti carbonation protective and decorative coating for concrete and masonary acrylic emulsion sealer coat primer chemical make of Thermax/Torchtar Ltd/Ooms polymer Ltd. as approved having high performance water based aliphatic protective coating uncovered concrete and masonary surface after proper surface preparation,cleaning of dust,dirt,etc. System should be appluication of Thermax/Torchtar Ltd/Ooms polymer Ltd. water based acrylic polymer primer cum sealer coating on prepared surface and application of two coats of using water based Aliphatic protective anti carbonation protective and decorative coating for concrete and masonary and interior exterior water based primer chemical of make Thermax/Torchtar Ltd/Ooms polymer Ltd.at 260-280 micron DFT @200.Micron WFT using suitable brush or roller complete all as specified and directed.

Dismantling wrought iron or mild steel work of any description and any position not otherwise described for complete all as specified and directed.

M&L fix in repair MS framed work such as framed guard bars barred iron doors,ladders,framed balusters,walknays,railing and similar work confining to Fe-290,Gde E-165 for over head tank any position including made ofangle/MS pipe with nuts and bolts or butt welded, etc complete all on specified and directed

M&L for preparing new steel surfaces over 10 CM witdth or girth and applying two coats of synthetic enamal paint over and including a coat of red oxide primer complete all as specified and directed.

M&L for preparing old painted steel surfaces over 10 CM witdth or girth and applying one coat of synthetic enamal paint complete all as specified and directed.

Notes:- (a) The work shall be undertaken having experience of OHT rehabilitation work,experience and execution of work also done by authorized applicator with certificate is mandatory before commencement of work. (b) Material shall be tested (minimum three tests specimen from the single lot) before approval and after receipt of each consignment before incorporation in the work, from any Govt recognised lab, approved by GE at cost of contractor. (c) The material brought during the execution shall be checked with sample of material tested and approved by the GE for quality assurance before incorporated in the work. The Chemical shall be one of the make as given in BOQ and list of Make as approved by GE. (d) The material as incorporated in the work shall be procured directly from manufacturer or their authorized representative as mentioned in BOQ. An undertaking for being a authorized representative of the manufacturer along with supporting documents shall be submitted by the supplier. Material for incorporation in work shall be allowed only after production of purchase voucher/invoice from the manufacturer/documents pertaining to authorised dealership in original and test certificate from the manufacturer. The brand shall be got approved in writing from the GE. Application, Preparation of mix and method of mixing shall be as per manufacturer's instructions. Contractor will submit the 50% quantity of Chemical in the sealed container in the office of Engr-in-Charge before starting the work alongwith original purchase voucher of the material. Engr-in-Charge will keep the empty container of full quantity of the chemical in his custody till one year from the date of completion of work. (e) Adoption of necessary safety arrangement like belts, ropes, helmets, netting etc which are required for safety of working including fixing of steel pipe scaffolding (Telescoping or otherwise) including steel sheet lining or steel plate stiffener with steel angle and cradles including hoisting and lowering as required with and including all kind of fixing arrangement suitable for over head tank of any shape or type for 50000 gallons to 100000 gallons capacity fixed all around OHT and below bottom dome to carry out necessary repair/ replacement work at height exceeding 3 m and upto 25 m height shall be mandatory deemed to be inclusive on quoted rates from item no-1 to 14 and nothing extra will be entertained on this account.

(f) All demolished material obtained from dismantling/demolition items shall be deposited at place shown by Engr-in-charge properly spread and levelled and site to be cleaned to the entire satisfaction of Engr-in-charge otherwise panel recovery to a sum of Rs. 10000.00 be deducted from dues without any prior intimation.

Neeraj construction company

JAY PRAKASH SHARMA

Rama constructions

MOHAN SINGH BHADORIA

SHRI RAM CONSTRUCTION

USHA TRADERS

m/s vikash Engineers

YASH DEVELOPERS AND CONSTRUCTION COMPANY