Soak-away type structure for drainage - made from scrap plastic material converted into absorbent porous fibrous mat with added bituminous or resin binder

摘要

A soakaway type of mat is made of plastic material to absorb and drain off water between the soil and a building component, also to drain off the material underneath squares, parks etc. The product is made from plastic scrap which is reduced in hot state to threads; this is converted into a matted material which is in part welded and elastic but stable and which has a large number of voids. Preferred structures have glass cloth with bituminous or resin adhesive binder. ADVANTAGE - Its prodn. uses scrap and is therefore environmentally favourable and energy-saving. It uses up quantities from the scrap "mountains" and reduces incineration. Its drainage effect is valuable for buildings.