Supplying and installing 1.5 mm thick self-adhesive HDPE membrane of Pidilite, Grace, BASF or equivalent, having tensile strength of 25 MPa (as per ASTM D 412), elongation of 500% (as per ASTM D 412), puncture resistance of 1000N (as per ASTM E 154), peel adhesion to concrete >880N/m (as per ASTM D 903) and hydrostatic head resistance 70m (as per ASTM D 5385).
Specification
The system should be fully bonded to the RCC thereby conforming to IS 16471:2017 requirements of UG waterproofing structures. The membrane should be minimum 2.4m wide to reduce the number of joints with minimum 75mm factory made selvedge’s and comprising of an HDPE layer and a pressure sensitive adhesive layer which is covered by a weather proof protective and trafficable granular layer to protect self-adhesive polymer layer, etc, as per manufacturer's specification and methodology.
