SPECIAL REPAIR TO THE EXISTING BRIDGE NEAR CENTENARY GATE OF HEMRL, PUNE

Amount

Chipping of unsound / week / damaged reinforced cement concrete of any description in any position, Preparation of surfaces by Pressure Jet washing, Grinding & Cleaning the exposed reinforced surface and removal of loose concrete with wire brush and scrubbers to bring the surface dirt / dust free and applying one coat of rust prevention liquid on exposed reinforcement surface to protect from corrosion & repair with patch work at any height including necessary scafolding etc complete all as specified and as directed by Engineer-in-charge. Make :- Asian Paints, Fosroc, Dr. Fixit, Perma or equivalent products.

Supplying & applying one coat of epoxy based concrete bonding agent over the existing concrete surface to bond old surfaces as per manufacturing instruction at any height including necessary scafolding etc complete all as specified and as directed by Engineer-in-charge. The bonding agent must have below properties:- 1) High strengh 2) Low shrinkage. 3) Chemical and Solvent resistance Make :- Asian Paints,Fosroc, Perma, Dr.fixit or equivalent products.

Supplying & applying Smartcare Epoxy Mortar for carryout the patch work in concrete structure by Mixing Resin Hardedner in the ration of 2:1 parts by weight & add 15-17 parts by weight Quartz filler at any height including necessary scafolding etc complete all as specified and as directed by Engineer-in-charge. The Mortar must have below properties:- 1) Compressive strength - 65 MPa ( in 7 days ) 2) Tensile strenghth - 20 MPa ( In 7 days ) 3) Flexure strength - 35 MPa ( in 7 days ) Make:- Asian Paints, Fosroc, Dr.Fixit, Perma or equivalent products.

Providing & applying One coat of water base organic Concrete Penetrating Corrosion Inhibitor which works on a Bipolar Inhibition Mechanism on the entire concrete surface (Surface should be free from oil, laitance, grease, Loose particles, etc. by wire brushing/ sandblasting/ water jet) to be repaired by using a brush or spray @ one litre for 4 Sqm or as per the manufacturer’s specification. Thoroughly remove the spalled concrete and loose material before application. Follow up with application of bond coat and subsequently with AP SC Repair mortar / concrete / plaster. It shall reduce corrosion rate minimum 5 times as per ASTM-G-109. Shall exhibit noble free corrosion potential (FCP) by about 150 mV against a control sample, at any height including necessary scafolding etc complete all as specified and as directed by Engineer-in-charge. Make :- Asian Paints, Fosroc, Dr.Fixit, Perma or equivalent products.

Supply and apply SC APCOREP POWTHROW sustained release Corrosion inhibiting caplets. It shall protect both anodic & cathodic sites and shall reduce Corrosion potential Ecorr by a minimum 80 mV in a conductive medium, by drilling 20-25 mm holes into the concrete at a depth of 30-40 mm and inserts to be filled by SC APCOREP EPOXY SEAL. Caplets shall inhibit corrosion inhibition efficiency of 98% (when added 0.03 % by weight) against the control sample evaluated by Tafel polarization method. The depth of penetration for effective corrosion protection shall be 100mm. Spacing of Pow throw shall be a) For RCC Columns- 1 metre from two opposite faces in a staggered fashion. b) For RCC Beams- 1 Umetre from two faces in a staggered fashion C) for RCC Slab- 1m x 1m grid, four units shall be inserted. AP Apcorep Epoxy LV Grout with pressure grouting Super low viscosity epoxy resin SC APCOREP MONOPOL Grout using injector till nozzles refused to accept the grout under pressure of 3-4 Kg/cm 2. Mix the base & hardener in the ratio 975 gm : 25 gm. Grout the material through pre-fixed nozzles in the structural elements and subsequently cutting / removal of nozzles and sealing of holes with SC APCOREP EPOXY SEAL putty. Monitor the leakages through other nozzles while grouting and seal them as per the requirement. The LV Grout has the following properties : 1) Viscosity - Less than 5 Cps 2) Compressive strength - 60 MPa ( in 7 days ) 3) Tensile strength - 20 MPa ( In 7 days ) 4) Flexure strength - 35 MPa ( in 7 days ) 5) Min. Specific Gravity - 0.95 at any height including necessary scafolding etc complete all as specified and as directed by Engineer-in-charge. Make :- Asian Paints, Fosroc, Dr.Fixit, Perma or equivalent products.

Supply and apply SC APCOREP EPOXY SEAL for sealing patchworks, and undulations in concrete. It comprises of Base and Curing Agent and should be mixed in equal proportion and air cured for 24 hrs. Supply and apply SC APCOREP IPN SYSTEM on a prepared sound substrate free from dust, algae, oil, grease and all the protrusions should be removed and fine cracks should be filled with compatible putty. The application of SC APCOREP IPN System (UC) primer with a consumption of 5-6 sqm per liter and DFT shall be 55-60 microns. Followed by the application of SC APCOREP IPN System (MC) intermediate coating in 5-7 hours with a consumption of 4-5 sqm/litre and DFT shall be 90-100 Microns. Then at last top coat of SC APCOREP IPN System (TC) coating shall be done with a consumption of 6-7 ltr per m2 and a DFT of 40-50 microns after an interval of 6-7 hours. The minimum tensile strength of the system will be 15 N/mm2, Minimum elongation of the coating must be 15% and it should be determined as per ASTM D-2370-73. Specific permeability: The maximum value must be 0.15 mg/cm2/mm/24hr and it should be determined as per ASTM D-1653-74. Adhesion with concrete: The minimum adhesion of the coating with concrete by pull out method must be 2.5 N/mm2 and it should be determined as per BS-3900-E- 270, at any height including necessary scafolding etc, complete all as specified and as directed by Engineer-in-charge. Make :- Asian Paints, Fosroc, Dr.Fixit, Perma or equivalent products.

Material and labour for Foundation protection from water errosion, WPT treatment to protect the foundation from entering water by hydrophobic silicon impregnattion chemicals at any depth including necessary scafolding etc complete all as specified and as directed by Engineer-in-charge. Make :- Asian Paints, Fosroc, Dr.Fixit, Perma or equivalent products.

Chipping or Scraping cracked / unsound / week / damaged reinforced cement concrete of any description in any position by wire brush, scrubbers and chiselling etc including cleaning the surface and removing dirt, dust, bird dropping, grease, oil, algae, fungus, monkey beats, vegetable growth etc., including providing, applying and washing the surface with liquid Ammonia Chemical of 5% solution and other chemical cleaning agent at any height including necessary form work etc, complete all as specified and as directed by Engineer-in-charge. Make :- Asian Paints, Fosroc, Dr.Fixit, Perma or equivalent products.

Material and labour for applying epoxy based bonding material Nitobond EP of FOSROC or Techno Commercially equivalent of PIDILITE, BOSTIK over cleaned exposed reinforcement as well as new reinforcement provided for corrosion prevention and fresh plaster bonding to old concrete Complete all as specified and as directed by Engineer-in-Charge. Note : Work shall be carried out by authorised applicator of manufacturer as approved by GE.

Material and labour for welded steel wire fabric not exceeding 4 Kg/Sqm fixed with necessary nails/fasteners and mild steel wire not less than 0.9 mm dia etc at wall/floor/slab etc, Complete all as specified and as directed by Engineer-in-Charge.

Material and labour for applying pressure guniting 25mm thick to all affected area of RCC/masonary structure including necessary scaffolding for the height of 6.5 metre from ground using sprayset HBL of Fosroc or equivalent of Pidilite @ 5 liters per 100 kg of cement and coarse sand in the ratio of 1:3 as per manufcturer instruction Complete all as specified and as directed by Engineer-in-Charge. Note : (i) Sprayset HBL of Fosroc or equivalent of pidilite chemical shall be measured and paid separately. (ii) Work shall be carried out by authorised applicator of manufacturer as approved by GE.

Supply only Sprayset HBL of Fosroc or equivalent of Pidilite, Complete all as specified and as directed by Engineer-in-Charge.

Material and labour for Rendering 5mm thick on fair faces of brick work or concrete surfaces in cement mortar 1:4, Complete all as specified and as directed by Engineer-in-Charge.

Material and labour for preparation of newly plastered wall surface and applying two coats of acyalic weather proof paint over and including a coat of acryalic primer, incl applying 1 mm thick putty over plastered surface to prepare the surface even and smooth, Complete all as specified and as directed by Engineer-in-Charge.

Fixing only chain link fencing including line wires, any mesh, size and type to any type of standards, rails, straining bolts, etc. including provision of binding wire, Complete all as specified and as directed by Engineer-in-Charge.

Supply only Chain link MS galvanised fencing, any size or type, Complete all as specified and as directed by Engineer-in-Charge.

M&L for MS angle posts, struts in fencing including cutting to shape as directed and drilling holes, notching for wire etc, flat iron fillets, bolts etc including all necessary drilling, bolting, riveting, welding etc and similar work conforming to Fe 290-) or grade E-165, Complete all as specified and as directed by Engineer-in-Charge.

Material and labour for preparation of steel surfaces and applying painting with synthetic enamel paint of approved brand and manufacture to give an even shade, Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture, Complete all as specified and directed by Engineer-in-Charge.

AN-ICON Engineering Technologies And Infrastructure Developments Pvt. Ltd (BID ID -3305369)

M/s S.R lahoti (BID ID -3304784)

M/S NILESH BUILDERS (BID ID -3304731)

M/S SAMRUDHI CONSTRUCTION (BID ID -3304697)

M/S.J.V.Datar (BID ID -3305231)

sanjay m. suryawanshi (BID ID -3304895)

K.K.Enterprises (BID ID -3305081)

AJAY ENTERPRISES (BID ID -3304707)

S.K.HARAL (BID ID -3304670)