Public Works Department Tender

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.

Providing and applying Single componenet Hydrophobic Polyurethane resin, which shall be low Viscos 250 (mPa-s), specific Gravity upto 1.20 (G/ml) or Higher , Tensil Strength Not less than 15N/Mm2 , Tensil Shear Strength Noty less than 7 N/Mm2, Compressive Strength Not less than M50 etc complete including PDP Pump, which shall be High Pressure Gauge fitted pump, electrically operated as per from approved manufacturer as per specification

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 Airless 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-functional 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