Structural repairs and painting of various buildings in RCF Estate at Chembur Mumbai 400074

Providing and laying in position plain cement concrete of specified grade with trap/granite/ quartzite /gneiss metal mixing in concrete mixer including bailing out water, compacting, finishing surface, curing and including the cost of centering and shuttering at all level : Nominal Mix of 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

Providing precast cement concrete Jali of Nominal Mix 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 6mm nominal size) reinforced with 1.6 mm dia mild steel wire including centering and shuttering, roughening cleaning, fixing and finishing in cement mortar 1:3 (1 cement: 3 fine sand) etc. complete excluding plastering of the jambs, sills and soffits. 100 mm thick.

Sealing the expansion joints or various joints by polysulphide sealant so as to make the joint completely water tight complete as directed. size 25 mm x 25 mm

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:6 (1 cement : 6 coarse sand)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level upto floor five level in all shapes and sizes in : Cement mortar 1:6 (1 cement : 6 coarse sand)

Uncoursed rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20mm nominal size) upto plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand).

Providing and applying 12 mm thick internal plaster in cement mortar 1:3 with neeru finish at all heights and locations in one coat for masonry (except stone masonry) and concrete surfaces including racking out joints, hacking of concrete surface, watering, finishing, curing, scaffolding etc. complete.

Supply of unskilled labours with tools & tackles for odd & unmeasurable work.

Providing and applying 20mm thick external sand faced cement plaster with neat cement rendering upto any height and at all locations in cement mortar proportion specified below in two coats for masonry (exceptstonemasonry) and concrete surfaces including providing waterproofing compound to the first coat of plaster as per manufacturers specification, racking out joints, hacking of concrete surface, finishing, curing, scaffolding etc complete as directed By Engineer In Charge. Min. time lag between two coats shall be 24 hours.(as per IS2402 of 1963.) In cement mortar 1:3.

Providing and laying Indian patent stone flooring 40mm thick with M-15 grade concrete using 6mm to 20mm metal over bedding laid in proper grade and slope or over the slab, including compaction, marking lines, to give appearance of tiles as per the approved pattern, finishing smooth with cement slurry as mentioned below, curing etc. complete. In plain natural/ grey colours.

Providing and fixing UV resistant selffit UPVC pipes of approved make for Rainwater downtakes confirming to IS 13592:1992 Type A suitable for 4kg/sqcm pressure for following pipe diameters including rain water receiving recess with pvc plug bend necessary fittings such as offsets shoes, fixing the pipes on wall with clips filling the joints with solvent/cement and necessary scafolding etc. complete as directed by Engineer In Charge. 100mm dia.

Providing and fixing UV resistant selffit UPVC pipes of approved make for Rainwater downtakes confirming to IS 13592:1992 Type A suitable for 4kg/sqcm pressure for following pipe diameters including rain water receiving recess with pvc plug bend necessary fittings such as offsets shoes, fixing the pipes on wall with clips filling the joints with solvent/cement and necessary scafolding etc. complete as directed by Engineer In Charge. 150mm dia.

Providing and fixing in position collapsible steel gates with vertical channels 20 x 10 x 2 mm & braced with flat iron diagonals 20 x 5 mm size, top & bottom T section 40 x 40 x 6 mm size, 30 mm steel pulleys complete with bolts-nuts, locking arrangements, stoppers, handles and painting with one coat of red oxide zinc chromate primer and two coats of synthetic enamel paint including all labour, materials, tools and equipments, etc complete as directed by Engineer Incharge.

Removing corrosion of steel reinforcement by mechanical means like wire brushing, chipping to remove loose rust and then Providing & applying One coat of Concrete Penetrating Corrosion Inhibitor (Surface applied) which works on Bipolar Inhibition Mechanism on entire concrete surface to be repaired by using brush or spray at 250 ml per Sq.Mt./Coat or as per manufacturer’s specification.

Providing & applying One coat of structural grade epoxy bond coat by brush conforming to ASTM-C-882-87 to the prepared concrete surface to be repaired / strengthened. This is applied prior to the application of polymer repair mortar / epoxy mortar / Microconcrete to have monolithic action between old concrete surface and new concrete surface.

Repairs to the deteriorated / damaged areas of RCC elements in the structure shall be carried out by using powder Polymer Modified repair mortar. The polymer modified mortar is applied when the epoxy bonding coat is still tacky. In one application 25 mm thickness shall be built. Subsequent layer shall be built with one bond coat of Polymer modified cement slurry. The polymer modified repair mortar shall be mixed, applied and cured as per technical specifications.

Leak-proof Shuttering for Encasement: Providing, fabricating & fixing the leak-proof shuttering made with marine plywood/M.S. sheets with proper supports at all locations for all shapes etc., for encasement & deshuttering the same after specified period or next day of placing the microconcrete / concrete. Providing & applying approved oil on all surfaces of formwork coming in contact with concrete as per specification. For column, beams etc.

Providing Micro Concrete jacketing to walls of thickness upto 75 mm using Polymer modified cement premixed quartz sand aggregate packed in bags of standard manufacture, for high early strength of 40 N /mm sq.cm of approved brand. The dry product is to be mixed with 12.5% water by weight, along with washed and poured into rigid form work moulds & tamped properly, & cured for 3 days. rate is also inclusive of necesary supports to be provided for structural members and required barricading. [Payment is to be made by weight premixed of micro concrete product consumed as per site register records. No extra payment shall be made for shuttering or any other material.]

Providing and applying Dr. Fixit Primeseal as priming coat and two coats of Dr. Fixit Raincoat or equivalent as per manuacturers specifications to parapet walls and vertical faces, dead walls where ever required and as directed including filling surface cracks should be filled with Dr. Fixit Crack X or Dr. Fixit Unifiller or polymer modified mortar for wider cracks if required.

Providing and fixing GI/PVC Nozzel (8mm to 12 mm dia) for cement grouting as per scope of the work mentioned including,driling,sealent putty , removing the nozzel directed etc complete.

Providing and fixing Resin/PU packer(Nozzel) for PU/water compatable epoxy grouting as per scope of the work mentioned including, driling, sealent putty, removing the nozzel directed etc complete.

Grouting Cement and polymer slurry as per scope of the work including all material, manpower and machineries etc complete as directed.

Grouting PU foam resin as per scope of the work including all material, manpower and machineries etc complete as directed.

Grouting water compatible Epoxy as per scope of the work including all material, manpower and machineries etc complete as directed.

Jacketting the existing column of size as shown in the drawing by removing the concrete cover to reinforcement, by chipping or other suitable means to expose the reinforcement of existing column in order to make available the same for binding the extra reinforcement as shown in the drawing and also removal of rust, scales of the reinforcement in order to provide and apply approved make of epoxy resin to get proper bond with newly laid M25 grade concrete. The aforesaid concrete shall be laid by the sides of the existing column with uniform thickness of 115 mm or as specified, for jacketing purposes thereby increasing the sectional dimensions by 150 mm or as specified (excluding finishing) at any height with requisite shuttering, centring, scaffolding, proping, repairing the existing surface as specified and also removal of debris, curing etc. complete as per design and drawing etc. directed. (NOTE :- Reinforcement will be paid separately under respective item of schedule ).

Jacketting the existing beam or beam connections as shown in the drawing by removing the concrete cover to reinforcement, by chipping or other suitable means to expose the reinforcement of existing beam or beam connections in order to make available the same for binding the extra reinforcement as shown in the drawing and also removal of rust, scales of the reinforcement in order to provide and apply approved make of epoxy resin to get proper bond with newly laid M25 grade concrete. The aforesaid concrete shall be laid by the sides of the existing beam with uniform thickness of 75 mm or as specified, for jacketing purposes thereby increasing the sectional dimensions by 100 mm or as specified (excluding finishing) at any height with requisite shuttering, centring, scaffolding, proping, repairing the existing surface as specified and also removal of debris, curing etc. complete as per design and drawing etc. directed. (NOTE :- Reinforcement will be paid separately under respective item of schedule).

Providing and fixing in position steel bars reinforcement of various diameters for R.C.C. pile, pile caps, footings,raft,retaining wall,shear wall, lift wall,foundations, slabs, beams, columns, canopies,staircases, newels, chajjas, lintels, pardies, coping, fins, arches, etc. as per detailed designs,drawings and bar bending schedules,including straightening, cutting, bending, hooking the bars, binding with wires or tack welding, supporting as required etc. all complete at all levels. HYSD steel bars (Fe 415)

Shear Connector: Make 10/12 mm dia holes using heavy duty electrically operated hammer drills in the concrete of RCC members to a depth of about 75 mm at 500 mm c/c or at suitable grid in zig-zag fashion, clean the holes using air jet and fix pre-fabricated 100 + 50 =150mm L-shape 8 mm dia rebar using Anti Corrosive protective coating so that 75 mm out of 100 mm is inserted inside the concrete and 25 mm remain outside along with 50 mm bend. The shear connectors are used to tie the additional reinforcement bars. Reinforcement will not be paid seperately.

Removing and refixing drain pipe (soil, waste water, ventilating or rain water) of any size with all fittings including cleaning pipe before fixing and painting as directed.

Removing mosaic, cement marble, granites non-slippery, tandur, kotah, shahabad stone or Indian Pattern stone, glazed tiles in flooring and dado including bedding brick bat coba etc., and delivering materials in Ward Office and carting away unserviceable materials.

Removing cement plaster of any finish from the wall, complete with racking out the joints to a depth of 20 mm.

Chipping /removing loose concrete upto reinforcement bars, without damaging the reinforcement, removing all the loose materials and to make all the exposed surfaces free from oil, dust and all impurities etc complete.directed by Site Incharge.

Demolishing brick work in lime or cement mortar including plaster, paint, etc. manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within RCF estate as per direction of Engineer-in-charge.

Demolishing stone rubble masonry manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within RCF estate as per direction of Engineer-in-charge : In cement mortar

Transportation-Lead upto 3 km including levelling.

Providing and applying single coat of an approved make primer for waterproof cement paint as per manufacturers specifications to the smooth surface, upto 10m height from ground level and at all locations as directed including preparing surfaces for painting by any approved means, scaffolding, cleaning and curing etc. complete as directed by Engineer-in-charge.

Providing and fixing single skin trapezoidal profiled sheeting 930 -1020mm cover width 28-32 mm crests depth at 186-250 c/c ( above 195 mm c/c crest distance there will be minimum 2 ribs at the centre for stiffening). The feed material shall be manufactured from AZ 150 (min. 150 gms/sq.mt total on both sides) Zincalume / Galvalume sheets of minimum yield strength of 550 MPa, 0.45 mm BMT, ( 0.5 mm TCT excluding paint coating thickness), metallic hot dip coated with Al-Zn alloy (55% Aluminium, 43.5% Zinc, 1.5% Si ) as

per AS 1397 /IS15961 & painted with Super Durable Polyester Colorbond steel XRW or equivalent quality paint system of apporved color, suitable for exterior application conforming to AS/NZS 2728:2007 type-4 / IS15965:class3 of approved make. The sheet shall have a total coating thickness of 35 microns, super durable polyester paint system of 20 microns on exposed surface and 5 micron reverse polyester coat on back surface over 5 micron primer coat on both surfaces. The paint system shall have stable inorganic pigments for color durability. The product will be fastened using no.12-14x55 mm (or as per design requirement), mechanically coated with 25 micron Zn-Sn alloy or hot dipped zinc coated with min 40 micron hex self-drilling fasteners with EPDM washer of approved make confirms to AS3566:2002 class 3. The fastener shall be fixed on every crest of sheets for connecting with purlins. The contractor is to submit design and workshop drawings and take approval on the sheet profile, design and detail before installation of the sheets from the concerned authorities. (The measurement shall be based on per unit of finished/covered surface area.) Bare Galvalume/zincalume sheets for roofing work.

Providing, detailing, fabricating and fixing at desired location using hot rolled sections and MS Plates of grade Fe250 as per specifications and approved fabrication drawngs (which are to be prepared by Contractor and got approved from Engineer), transporting to site and erecting structural steel members for all heights & at all levels including provision of necessary erection bolts, fixing bolts, nuts, washers, cleats, stiffeners, gussets, baseplate ,and all necessary fixtures and operations like pre heating as per specifications, straightening, bending, cutting, drilling, grinding, machining if specified, welding, grinding and removing the welding burr and preparing surface for painting with wire brush cleaning and applying two coats of epoxy red oxide zinc phospate primer of 30 microns each and two coats of Epoxy Corrosion Resistant Enamel paint of 30 microns after fabrication including touching up with spray painting after erection, if required etc complete as directed by Engineer In Charge. (The qty. for this item shall be measured for gusset plates, base plates, bolts in M.T.)

Providing and fixing 75 mm nominal outside diameter UPVC soil/waste pipe as per I.S. 13592 : 1992 or latest, including all necessary fittings such as bends, tees, single/double junction, sloted vents, offsets on wall with clips filling the joints with solvent cement incl. necessary scaffolding etc. complete.

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Removing the small trees from wall portion from the roots and depositing the debris as shown inclusive of finishing the surface with C.S. plaster as directed.

Removing and refixing G.I. pipes of any size with all new fittings if necessary complete including cleaning but excluding painting.

Providing and fixing G.I. pipes of C class, complete with G.I. fittings and clamps, i/c cutting and making good the walls etc. Internal work - Exposed on wall 15mm dia. Nominal bore

Providing and fixing G.I. pipes of C class, complete with G.I. fittings and clamps, i/c cutting and making good the walls etc. Internal work - Exposed on wall 25mm dia. Nominal bore

Providing and fixing G.I. pipes of C class, complete with G.I. fittings and clamps, i/c cutting and making good the walls etc. Internal work - Exposed on wall 20mm dia. Nominal bore

Supply of skilled labours with tools & tackles for odd & unmeasurable work.