Watertight base for waste tips - consists of melted plastics waste from rubbish or the plastics industry

摘要

A watertight base for waste tips to prevent pollution of the ground water consists of plastic matl. from rubbish, or waste from the plastics industry which is spread and melted to provide a film. The plastics matl. may be spread and then melted by heat supplied from above or may be applied ready melted by means of a vehicle.