| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to a water-permeable and water-absorbing coating laid on roads, garden plots, etc. The water-permeable and water-absorbing coating is formed with a mixture of water-permeable material and hollow bodies that are generally uniformly mixed into and distributed in the material; with that, some of the hollow bodies are fully buried into the material and the hollow bodies have through holes.EFFECT: reduction of probable accumulation of water on the surface till a flood case, as well as ability of water to be retained in large amount inside the coating layer.8 cl, 6 dwg |
