Restoration of drainage and sewage channels uses angled polymer concrete components, to line the old upper and side walls, with mutual support at a sealed butt joint between them

摘要

To restore the upper and side walls (2) of drainage and sewage channels (1), two angle components (4,5) of a polymer concrete are fitted against the old walls with mutual support against each other. Their butt joint (6) opens out towards the interior of the channel, and is sealed with an adhesive. The lower ends of the angle components are secured by supports (7,8) at the base (3) of the channel.