These combine two or more types of geosynthetic product for the specific purposes of drainage.
Delta®-Drain is a high-density polyethylene (HDPE) double dimpled sheet with integral polypropylene geotextile.
A four-ply material for use as a compact protection and drainage system for waterproofing in building construction.
A high density polyethylene drainage sheet designed for use in underground structures including retaining walls, cut and cover tunnels, underground car parks etc.
A profiled HDPE with ribbed conical voids spaced to permit high water flow through a permanent void against the sub-structure face.
A continuous layer of natural sodium bentonite is sandwiched between a needle-punched polypropylene geotextile (the cover layer) and a slit film woven geotextile (the carrier layer).
High density polyethylene combined cavity former and vapour barriers for drained BS 8102:2009 Type C basement construction. Forming drained cavities horizontally & vertically.
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