Waterproofing work at various locations inside RCF Colony, Admin. Building, Priyadarshini Building and allied areas in RCF Estate at Chembur, Mumbai 400074

Preparing the surface throughly by cleaning, washing and removing dust, dirt, oil, grease and loose particles if applicable. Ensuring proper slope. The existing waterproofing is to be checked for soundness and repaired with polymer modified screed if required. Surface cracks should be filled with Dr. Fixit Crack X or Dr. Fixit Unifiller or polymer modified mortar for wider cracks if required. Application of one coat of Dr.Fixit Primeseal (diluted with water in the ratio 1:2) to the surface. Providing and fixing glass fibre mesh of 40 GSM as directed. Application of three coats of Dr. Fixit Newcoat or equivalent as per manuacturers specifications in three different colours to achieve a minimum thickness of 1 mm DFT as directed. The actual coated area will be paid.

Preparing the surface throughly by cleaning, washing and removing dust, dirt, oil, grease and loose particles if applicable, etc.Concrete substrates must be prepared mechanically using grinding equipment, abrasive blast cleaning or scarifying equipment to remove cement laitance and achieve an open textured surface. Weak concrete must be removed and surface defects such as blowholes and voids must be fully exposed. The existing waterproofing is to be checked for soundness and repaired with polymer modified screed if required. Repairs to the substrate, filling of blowholes/voids and surface levelling must be carried out using appropriate products from the Sikafloor®, Sikadur® and Sikagard® range of materials or equivalent. The concrete or screed substrate has to be primed or levelled in order to achieve an even surface.All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and/or vacuum. Ensuring proper slope. Application of one coat of sika floor primer by brush or roller (diluted with1 x Sikagard®-67 + 20 % water by weight) to the surface. Mixing sikaguard 67 Part A : Part B = 1 : 1 (by weight) & Application of two coats of sika grad 67 food grade or equivalent as per manuacturers specifications as directed. The actual coated area will be paid.

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.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 3.5 and above in superstructure above plinth level upto floor five level in all shapes and sizes in : Cement mortar 1:6 (1 cement : 6 coarse sand)

Providing and applying 20 mm thick external sand faced cement plaster with neat cement rendering upto 10m from ground level and at all locations in cement mortar proportion specified below in two coats for masonry (except stone masonry) and concrete surfaces including providing water proofing 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 IS 2402 of 1963.). In cement mortar 1:3.

Providing and laying in position plain cement concrete of specified grade cement 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 OPC: 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

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)

Providing Ready mix Micro Concrete jacketing to walls or beams 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. [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 laying Indian patent stone flooring 40 mm thick with M-15 grade concrete using 6 mm to 20 mm 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.

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. 100 mm 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. 150 mm dia

Removing corrosion of steel reinforcement by mechanical means like wire brushing, chipping to remove loose rust and then providing & applying migratory corrosion Inhabitor KP100 or equivalent as per manufacturers specifications on previously cleaned surface. Follow the instructions of the manufacturer before applying polymer bond coat of approved manufacturer such as sika, sunanda, krishna conchem, pidilite or equivalent as directed to the old concrete surface to make surface ready for PMM.

Bond Coat: 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.

Repair with Polymer Modified Mortar (PMM): 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.

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

Waterproofing the terrace slabs with average 100 mm thick, brick bats laid in cement mortar bed 1:4 filled with mortar 1:4 of total thickness 100 mm, laid to slope (1:100) with vata 15 cm, at the junction of walls and IPS flooring (1:2:3) 40 mm thick with admixture, of approved water proofing compound, as per manufacturers specification laid after grouting the slab, finishing curing etc. complete as directed and specified. (Horizontal measurement clear between walls will be paid for).

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 RCF Township Stores or as diretced by RCF Engineer and carting away unserviceable materials within RCF limit.

Removing cement plaster of any finish from the wall, complete with racking out the joints to a depth of 20 mm and carting away unserviceable materials as directed by Engineer In-charge within RCF limits.

Chipping / removing loose concrete upto reinforcement bars without damaging the reinforcement, removing all the existing loose plaster/concrete with the help of chisel & hammer or by power driven tools up to sound concrete including errecting scaffolding up to any height wherever required cleaning the working area, etc. & carting away the debris as directed by Site Incharge within RCF limit.

Providing and applying polymer based coating of approved brand in three coats to external walls, sloping roofs,dead walls etc to prevent water penetration / effect of sunray / fungs development and to protect the reinforcement from marine atmospheric effects, cleaning etc.complete including filling the surface cracks should be filled with Dr. Fixit Crack X or Dr. Fixit Unifiller or polymer modified mortar for wider cracks if required

Breaking and removing the water proofing layers of I. P. S. with bituminous joints and brick bat concrete over the existing terrace floor including cement vata and exposing R.C.C. slab top complete.

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 limits as per direction of Engineer-in-charge.

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer, 3 mm thick water proofing membrane, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufactured of density at 25°C, 0.87 - 0.89 kg/litre and viscocity 70 - 160 cps. Over the primer coat the layer of membrane shall be laid using butane torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 350/300 N/5 cm. Tear strength in longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto 2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane: 3 mm thick

Providing and fixing APP (Atactic Polypropylene Polymer) modified prefabricated five layer 2 mm thick water proofing membrance, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrance manufacture of density at 25°C, 0.87 - 0.89 kg/ litre and viscocity 70 - 160 cps. Over the primer coat the layer of membrane shall be laid using Butane torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 350/300 N/ 5 cm. Tear strength in longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacture of membrane. 22.18.1 2mm (for corrugated roof sheets)

Providing and applying first single coat of approved primer and two coats of aluminum paint of an approved make as per manufacturers specifications to any surfaces, at all height and locations as directed including scaffolding, scraping, cleaning and removing old paint if any and preparing surfaces for painting by any approved means etc. complete as directed by Engineer-incharge.

Removing Exsisting Tarfelt / Membrane treatment without damaging the concrete Surface, Including Cleaning the Surface with wire brushes, Lowering down the waste material and disposing the same to dumping yard within a radius of 3 KM and / or directed by EIC etc Completed.

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

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