Repair and retrofitting of western cell of cooling tower in Phosphoric acid plant of FACT (Cochin Division), Ambalamedu. Kochi.

Amount

Chipping & removing damaged concrete layer, de-bonded concrete, cracked portion, loose concrete etc., to a depth of about 15mm behind the existing corroded/ damaged reinforcing bars in RCC structural members using chisel & hammer / concrete breaker machine in low vibration mode, removing all damaged/loose particles, loose plasters, surface preparation of concrete using wire brush/scrapper to completely remove dust, debris, unwanted particles etc.

Chipping & removing old cement plastered surface including racking out joints & clearing the surface for replastering & disposal of the debris as per directions within a distance of 150 m.

Applying one coat of Epoxy Zinc Phosphate Primer of approved brand & quality followed by two coats of epoxy high build finish paint using "Epilux - 4 high build " of Berger Paints or equivalent approved brand over the primer already done at all heights after thoroughly cleaning surfaces to be painted by using waterjet spray/ manually including cost of primer, paint, cost of brush, labour charges, scaffolding charges and all other incidental charges etc.complete as per deptl. instructions.

Painting with one coat of zinc chromate yellow metal primer and two coats of synthetic enamel paint using approved brand & quality at all heights after cleaning the surface by using waterjet spray/ manually including cost of all paint and materials, labour charges, etc.complete as per deptl instructions

Centering and shuttering including strutting, propping etc. and removal of form for :Lintels, beams, plinth beams, girders, bressumers and cantilevers

Centering and shuttering including strutting, propping etc. and removal of form for :Columns, Pillars, Piers, Abutments, Posts and Struts

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level Thermo Mechanically Treated bars of grade Fe-500D or more.

Rust Removal: Providing and applying approved alkaline chemical rust remover with paint brush after cleaning the surface thoroghly and removing loose particles after 24 hours of its application

Anticorrosive Treatment to Steel: Providing and applying single coat of zinc rich anti corrosive coating such as nitozinc primer in 40 micron thickness to the exposed reinforcing bars after application of alkaline rust remover on main and lateral links all complete as directed by EIC

Providing and applying bond coat on the prepared surface toreceive new polymer mortar/ polymer modified concrete, with two componentsepoxy based bonding coat Concresive1414 of BASF/Nitobond EP of Fosroc orequivalent material in one full coat.Laying of reinstatement polymer mortaror micro concrete shall be completedwithin the overlay time of bonding coat.This bond coat act as bonding agentbetween old and new concrete. Item rateinclusive of all materials, labours,supervision, tools, tackles, transportation, fixing etc., complete as per specification and as directed

Relnforced cement concrete 1:1.5:3 (l cement : 1.5 coarse sand (zone-II1) : 3 graded stone aggregate 20 mm nominal size) work at all- levels, excluding cost of centering, shuttering, finishing and reinforcement & including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and Curabillty as per direction of Enqineer in-charge.

Providing and laying of polymer modified micro- concrete like Emaco S46 T of BASF/Renderoc RG (S)of Fosroc/ReCon MC 40 of Conmix or equivalent material blended with washed, saturated surface-dry (SSD), graded, low absorption, high density aggregates of size 8 mm & below up to 30% by weight of micro-concrete and water at 4 lit. per 25 kg bag and pouring into the form work using suitable pumping device for uniform flow of concrete. The side shuttering can be removed after 3 days and the bottom shuttering after 7 days ensuring proper bond between the micro concrete and existing concrete substrate. Item rate inclusive of all materials, labours, supervision, tools, tackles, transportation, curing, etc., complete as per specification and as directed.

Providing and laying 25 mm (incl.+5mm) average thick polymer modified latex mortar like "RENDROC SP40" of M/S FOSROC chemicals or equivalent with poly propylene fibers as per the manufacturers specification over the concrete surface roughened by chipping followed by water jetting including filling the crevices/ undulations flushing with adjacent surface curing etc., concrete at all heights including all material and labour charges and all as directed by EIC

Anchoring rebar after placing in position and inserting into the holes drilled and grouted using the FIS EM Plus 390S manufactured by Fischer/ HIT RE500 V4 epoxy anchor of HILTI or equivalent make for beams and columns as directed by the engineer-in-charge. Rate shall include supply of and all materials (except reinforcement rods), conveyance, all charges for cleaning the surface, ,drilling holes, fixing rebar, grouting etc, at all levels (reinforcement rods paid in separate item) - with 12mm dia rebar of 100mm embedment depth

Cement plastering with CM 1:4,15 mm thick one coat floated hard and trowelled smooth at all levels including cost of cement

Supplying, # CONBEXTRA GP 2” or equivalent epoxy grout for grouting works.

Collecting spoil earth, debris etc.from site, conveying to places with an average lead of 1 KM by mechanical transport, dumping and forming embankment for filling, spreading in layers as per directions (20%deduction will be made if measured loose in lorries & from stack).

ENGINEERS DIAGNOSTIC CENTRE PRIVATE LIMITED (BID ID -3124404)

STANDARD REHABILITATORS PVT.LTD (BID ID -3128136)