Public Works Department Tender

Centering shuttering including struttings, propping etc. and removal of form work for: Suspended floors, roofs, landings, balconies and access platform with 12 mm thick shuttering ply

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and skirting courses, fillets, columns, pillars, piers, abutments, posts and struts etc. upto floor five level excluding cost of centring, shuttering, finishing and reinforcement 1:1½:3 ( 1 Cement: 1½ fine sand : 3 graded stone aggregate 20 mm nominal size

Surface preparation by buffing method, using buffing machine and patch fill with rich grade concrete with Micro concrete , pre-packed polymer modified mortar ( if required), including required micro concrete or equ.including bond coat of SBR/cement slurry etc complete after removing loose friable material and weak concrete, surface defects such as blowholes and voids must be fully exposed. Repairs to the substrate, filling of joints, blowholes/voids and surface leveling must be carried out using appropriate products, surface biocide used in the treatment of microbial contamination (fungi, algae, mosses, lichen, mildew and moulds) to be applied prior to the application of a coating system. It is also essential that visible growth, flaking paint and others loose materials are removed prior to application. This may be achieved by wire brush, scraper or other similar means. Oil/grease contamination should be removed using a proprietary solution etc. complete High spots/undulation must be removed by grinding, outgrassing is a naturally occurring phenomenon of concrete that can produce pinholes in subsequently applied coatings, so the surface preparation must be touch sound and neat & clean to receive the coating. Measurement shall be in lenghth and breath

Providing and applying PU coating ( Polyurethane) by spray etc Complete as per manufacture specification minimum PU at the rate 0.700 kg/ Sqm etc complete the substrate should be checked for < 4% pbw moisture content, Relative Air Humidity 85%r. h. max, the mixing must be thoroughly mixed using a low speed electric stirrer (300- 400 rpm) or other suitable equipment, if applied by roller then roller shall be With a solvent resistant, "non-fuzzy' roller, or if applied by spray then spray shall be Ainless spray equipment, for example: piston pump Wagner EP 3000. (pressure: 200 - 250 bar, nozzle: 0.38mm -0.53mm, angle: ca. 50 - 80°) including materials skilled applicator, labours, tools tackles etc complete (The product performance shall be guranteed for ten year from the date of application) Two component, composite water based silicone impregnateing solution with Nano mechanism, which impart water repellency at 100% for mineral construction materials, with UV resistance, barrier against chloride ions, carbon dioxide and water, it can be Siloxane- Silicone modified two-component waterborne polyurethane was synthesized by the reaction between siloxane- modified hydroxyl-functiona! polyurethane aqueous dispersion and the hydrophilic-modified polyisocyanate, or with any such equal Composite mechanism, with a NANO mechanism, so that, the process of impregnateing and surface protection shall be ensured.Two process waterproofing system Component "A" as base application - Impregnateing solution with low vicious, which should provides 100% water repellency Component "B" as top application- Protection to treated surface with UV resistance, barrier against chloride ions, carbon dioxide and water, with excellent bond strength, etc.Measurement shall be in lenghth and breath

Providing and placing in position Micro Concrete, which shall be cement based pre-packed single component chloride free, non-shrink , free flow, self compacting ready to use after mixing water in specified proportion obtained from approved manufacturer as per specification upto Grade not less than M 40 for column, beam, slab etc. wherever required including mixing with paddle fitted low RPM machine, including materials, Aggregate, labours etc. complete.