REPAIR AND MAINTENANCE OF GLACIS OF HATHNI KUND

Amount

PMM Repairs ( FOR PATCH REPAIRS)- upto 25mm average thickness (in 2 layers) PMM repairs shall be done as per following methodology. (NS Item) Rate analysis enclosed a. Chipping of plaster and unsound/weak concrete material till reinforcement bars are exposed, which enabls their rust removal below, from slabs, beams, and columns etc. with standard power driven percussion type or pneumatic chisel of standard make as directed by Engineer-incharge including tapering all edges, making square shoulders of cavities etc complete and disposal of debris up for all lifts and leads. upto 25mm thickness. b. Rust removal by Providing and applying a combination of acid based material, corrosion inhibitors and dispersing agents reebaklen RR rust remover, for removal of all rust/ scales/corrosion from reinforcement bars before micro concreting or patch repair, It Shall be applied with brush for complete wetting of rusted metal surface at coverage of 2- 2.5 Sqm/ltr. c. Anticorrosive treatment by Providing and applying an epoxy based zinc rich anti corrosive primer having adhesive bond strength ≥ 1.5 MPa as per ASTM D4541, & shall comply toper ASTM B-117 to be applied on well cleaned, fully exposed and all loose scale , rust free rust free surface obtained by grit blasting or suitable means , to be done with coverage @4.5sqm/litres to achieve a minimum thickness of 40microns DFT or as per direction of Engineer-In charge. d. Applying epoxy bond coat on the sound concrete substrate using approved spray machine &ensuring that no pin holes are visible. (In case pin holes are still visible after a coat, a second coat shall be applied to ensure absence of pin holes). Immediately after application of epoxy bond coat as above apply PMM (Polymer modified cementitious mortar) of 25 mm thickness. Bonding agent shall have Compressive strength(BS 6319 Pt.2)- 50 Mpa at 7 days, Flexural strength strength(BS 6319 Pt.3)- 35 Mpa at 7 days, Tensile strength (BS 6319 Pt.7)- 20 Mpa at 7 days, Shear Strength (BS 6319 Pt.4)- 10 Mpa at 7 days. e. PMM by providing and laying Renderoc RG SPL of Fosroc, Shrinkage Comensated, single component, polymer modified, fibre reinforced cementitious repair mortar, over the tacky bond coat, that achieves Compressive strength (BS 6319 ) > 50 MPa at 7 day , > 70 Mpa at 28 days, Tensile Strength > 4MPa, Flexural Strength > 9Mpa at 28 days, Finishing the same with trowel carefully compacting the same around the rebars and finishing to bring it in line with existing concrete surface on the beams, slabs, piles etc., , complete in all aspect as per manufactur's methodology. Rates include cost of all labour, materials, Tools and Plants, propping, scaffolding, shuettering, safety arrangement, quality control, testing complete as per specifications and direction of engineer in charge". f. Item rates of PMM are inclusive of all materials, labour, tools and plants, propping, scaffolding, safety arrangement, quality control, testing and all items of works from above quality control etc. complete in all respect, as per specifications and as directed by Engg.-in-charge. Work shall be complete only after proper wet curing has been done by contractor and surface has been evaluated for satisfactory quality by sounding/tapping with a blunt metal instrument, and testing of PMM cubes filled up and cured by contractor during the application of PMM (75mm size cube crushing strength at the end of 28-day to be not less than 45 N/sqmm) in addition to NDT Testing as per under item of "Testing of works"

Providing and applying injection grouting using non shrink cement slurry admixed with Cebex 100 of Fosroc @ 225gms/ Bag of cement through the PVC nozzles ( 12mm dia PVC/ Plastic Nozzles - 4` to 9` long , provided into the cracks/ honeycombed areas using 140 PSI hand operated Grouting Pump under pressure till the refusal,doing final Cement slurry Grouting (after 28 Days),, finally cutting and sealing of Nozzle. including all labour, supervision, tools and tackles and transportation etc. complete as per direction of Engineer -incharge

Bidder Name

Amount

vijay kansal contractor (GSTN-06AKYPK2355A2Z5) BID ID -1024508

Shri Ganesh Construction Co.(GSTN-NA)--1025147

vijay kansal contractor

vijay kansal contractor