tender for water proofing work in chc pahadi - 40 mm thick cement concrete flooring with 20 mm nominal size stone aggregate and 1:2:4 (1 cement : 2coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete. dsr 11.3 , 2 providing and applying solying solvent free, two component (astm d16, type v), polyurethane coating system, non-tar extended, standard 1.00 mm (drythane std) with highly elastic base coat 0.50 mm (400he) for high crack spanning capability. tough durable film, highly reistand to mechanical damage and totally impervious to water immersion. product shall not emit any volatile organic compounds (voc) or odor and will be totally environment friendly.