REPAIR/ MAINT TO ROOFS, CHAJJAS AT VARIOUS BLDG UNDER AGE B/R-II AND PERIODICAL SERVICES TO CERTAIN PT BLDGS AT INS UTKROSH UNDER AGE B/R-II AT GE MINNIE BAY PORT BLAIR

Amount

Removing loose and broken concrete/ masonry surface by chiseling/ mechanically etc from the Rcc wall. roof slab, column, beam and similar structural members cutting edges, cleaning the dismantled portion with wire brush etc to make the reinforcement naked and remove dust, dirt and other foreign particle etc and removing to debris 50m from site all as specified and directed by Engineer-in-Charge.

M&L for providing and applying rust remover to the exposed corroded reinforcement as per manufacturer's instruction including removing of concrete all around reinforcement by manual methods such as hammering the rebar, using wire brushes, salt paper, chiseling, etc (if left uncleared) including applying two coats of anticorrosive primer over dry steel surfaces after allowing due time for removal of rust all as specified and directed by Engineer-in-Charge. Note : The circumferential area around rusted bars along the length shall be measured and paid under this quoted item.

M/L for reinforced deformed bars 10mm dia and over cut to length cranking bending spirally or hopping ends MS wire annealed not less than 0.9mm dia all as specified and directed by Engineer-in-Charge.

M&L for drilling 15mm dia holes in to RCC slab / wall / Column /beams to a depth of 100 to 150 mm & provide shear connector of 12 mm dia rod bent to "L" shape with 75mm to be embedded in hole of 100 mm to be used as dowel, fixed with polyster resin grout mixed mechanically and pour the same into the hole and insert the shear connector and finish the top; allow the same to set complete all as per manufacturer's instructions and as directed by Engineer-in-Charge.

M/L for applying one coat of epoxy bonding coat as per manufacturer's instruction to bind with old concrete / wall surfaces of soffit of slab, column, beam and similar structural members for new cement surface complete all as specified and directed by Engineer-in-Charge.

M&L for pressure guniting 40 mm average thickness in cement mortar 1:3 to all affected RCC structures including necessary scaffolding modyfying with mortar with polymer based resin & hardener complete all as per manufacturer's instructions including making good as directed by the Engineer-in-Charge. Note : Due to rebound during the pressure application, some wastage factor not more than 10% shall be considered for calculation purpose as per manufacturer's recommendations.

M & L for non shrink, cementitious Micro concrete mixed with 12.5mm graded crushed stone aggregate in the ratio by weight 18kg aggregate: 25kg micro concrete respectively or as per manufacturer's instructions, as in sides and soffits of beams, jacketing of columns, roof slab and similar structural members including necessary form work for fair finished surfaces. The formwork shall be water tight to facilitate pouring of micro concrete complete all as per manufacturer's instructions complete all as specified and as directed by Engr-in-Charge.

M&L for rendering the identified RCC surfaces with 15mm average thick cement mortar (1:3) on gunited surface by using POLYMER MODIFIED MORTAR in single layer of relevant proportion and weight of polymer, cement and filler material as per approved make, blended to a required consistency, applying, finishing and curing as per manufacturer's instructions including necessary scaffolding, formwork complete all as specified and as directed by Engr-in-Charge.

Supplying and applying High build hydrophobic polyurethane waterproofing coating on slab / masonary wall cold applied of spray / brush applied coating with an elongation of 550% and tensile strength of 4.5 N/mm2 as per ASTM D 412, no leakage upto 5 bars of water pressure as per DIN 1048, shore A Hardness of min. 75 as per ASTM D 2240. The system includes base preparation with one coat of epoxy primer resin and epoxy primer hardner. Apply SmartCare PU Magnum or approved equivalent in two coats to achieve an average thickness of 1.0 mm complete as per Manufacturer's specifications all as specified and directed by Engineer-in-Charge. NOTE FOR ITEM NO.01 to 09 : (i) The successful contractor shall execute the structural repair work through the Manufacturer's authorised applicator only and the copy of the agreement/certification for the same shall be submitted to the Accepting officer for approval before the execution of the work. An amount of 2.5 % of the quoted amount subject to a minimum Rs.50,000/- shall be retained against security deposit against the structural repair work under the respective items for 5 years and gurantee bond for the same shall be also submitted in Non Judicial stamp paper duly notarized along with the deposit amount for 5 years. The contractor shall quoted accordingly and no claim shall be entertained later.

M&L for demolition of RCC Roofs, floors (other than ground floors), beams, staircases, landing, chajjas and similar suspended work [reinforcement cut as required to facilitate demolition] of any description and in any position not otherwise specifically provided for including necessary safety precautions and scaffolding up to a height of 15.0m complete all as specified and directed by Engineer-in-Charge.

M&L for RCC M-30 (Design mix)using 20 mm graded aggregate in Slabs supported on walls, beams and columns in floors, roofs, landings, balconies,canopies, deck slabs and in shelves and the like including formwork complete all as specified and directed by Engineer-in-Charge. Note : (i) TMT bars shall be measured and paid separately (ii) Rate including necessary safety precautions and scaffolding up to a height of 15.0m.

M&L for RCC M-30 (Design mix)using 20 mm graded aggregate as in Chajjas including formwork complete all as specified and directed by Engineer-in-Charge. Note :(i) TMT bars shall be measured and paid separately(ii) Rate including necessary safety precautions and scaffolding up to a height of 15.0m

M&L for MS TMT bars 10mm dia and over cut to length bent to shape reqd including cranking, bending spirally for hooking for columns, hooking ends and and binding with and including mild steel wire (annealed) not less than 0.9mm dia complete all as specified and directed by Engineer-in-Charge.

Taking down scrubs/vegetation growth from crevices completely upto any height and applying suitable chemical (herbicide) making good with PCC 1:2:4 or necessary plaster with CM 1:4 wiith WPC complete with all safety equipments including necessary safety precautions and scaffolding up to a height of 15.0m all as specified and directed by Engineer-in-Charge.

Taking down cement plaster including raking out joints hacking for key, scrubbing down with water complete all as specified and directed by Engineer-in-Charge.

M&L rendering 15 mm thick in two layers (10mm + 5mm) externally in cement mortar (1:4) on fair faces of brick work or concrete surfaces mixed with water proofing compound in top layer of 5mm thick as per manufacturer’s instructions and finishing the surfaces fair and even without using extra cement complete all as specified and directed by Engineer-in-Charge. Note : WPC shall be measured and paid separately as ‘Supply only’ on respective item.

M&L for rendering 10mm thick plaster in CM (1:6) on brick/block or concrete surfaces finished even & smooth complete all as specified and directed by Engineer-in-Charge.

M&L rendering 5 mm thick in cement mortar (1:4) on fair faces of brick work or concrete surfaces as in ceiling, soffits of slab, sunshade, etc and finishing the surfaces even and smooth without using extra cement complete all as specified and directed by Engineer-in-Charge.

Supply only Integral water proofing compound (ISI Marked) all as specified and directed by Engineer-in-Charge.

M&L Preparation of Newly plastered surface of wall and applying two coats of acrylic emulsion based premium quality matt finish exterior antifungal paint over a coat of primer as per manufacturers instructions all as specified and directed by Engineer-in-Charge.

M&L preparation of newly plastered surfaces of wall and applying two coats of oil bound distemper over a coat of primer complete all as specified and directed by Engineer-in-Charge.

M&L preparation of newly plastered surfaces of ceiling and applying two coats of oil bound distemper over a coat of primer complete all as specified and directed by Engineer-in-Charge.

M&L for preparation of old surfaces of wall and applying one coat of oil emulsion distemper complete all as specified and directed by Engineer-in-Charge.

M&L for complete removal of existing treatment on old wall surfaces and applying two coat of acrylic emulsion weather coat premium quality antifungal exterior emulsion over a coat of primer including scaffolding at any height including necessary safety arrangements complete all as specified and directed by Engineer-in-Charge.

M & L for complete removal of existing treatment on wall surfaces and applying two coats of oil bound distemper over a coat of chalk whiting, on plastered surfaces complete all as specified and directed by Engineer-in-Charge.

S&F for hard down steel wire fabric not exceeding 3 kg/sqm cut to lengths, bent to shape mild steel wire, (annealed) not less than 0.9 mm dia as in reinforcement all as specified and directed by Engineer-in-Charge.

M&L for applying curing compound on gunited surface for complete curing as per manufacturer's instructions all as specified and directed by Engineer-in-Charge.

M&L for preparation of old surfaces of ceiling and applying one coat of oil emulsion distemper complete all as specified and as directed.

M&L for applying a layer of 3mm thick wall care putty on wall thickness and making surface even and smooth complete all as specified and as directed by Engineer-in-charge.

RS ENGINEERING WORK (BID ID -3040737)

M/s Ramesh Lal (BID ID -3040714)

MAJUMDAR FURNITURE (BID ID -3040349)

Tropical Refrigeration (BID ID -3041360)

M/s K Moorthi (BID ID -3040599)

RPG AND COMPANY (BID ID -3040634)

ANDAMAN PAINTS PVT LTD (BID ID -3041291)