| 摘要 |
<p>Polyethylene panels with abutting or interlocking edges are provided with a coating which facilitates adhesion to a 1-2 mm thick glue layer applied to the bunker walls. Such a coating may comprise a rolled or pressed jute web. a copolymer of polyethylene and bitumen or a polyisobutylene film. The fluid glue employed is based on polyurethane which may be used as a foam to fill any irregularities in the bunker wall surface.</p> |
