水泥基透水路面制品的透水与保水性研究

Research on Permeability and Water Retention of Cement-based Permeable Pavement Products

通过讨论影响水泥基透水路面制品透水性和保水性的主要因素,以及两种性能之间的相互矛盾关系,指出水泥基透水制品对透水系数要求过高,而对保水性未充分重视。水泥基透水制品不仅应具有足够的透水能力,还应有较高的保水能力,以满足海绵城市建设更高的要求。采用粒径尽可能小的单一粒级骨料制备水泥基透水路面制品,可以很好平衡透水性和保水性两种指标的要求。

By discussing the main factors that affect the water permeability and the water retention of cement-based permeable pavement products and the contradictory relationship between the two properties,the water permeability coefficient of the cement-based permeable products is required too high while enough attention is not given to the water retention performance.The cement-based permeable products should have both a sufficient water-permeable capacity and a high water-retaining capacity in order to meet the higher requirements of the construction of sponge city.The cement-based permeable pavement products,which are prepared by the single-grain aggregate at particle size as small as possible,which can well balance the requirements of both water permeability and water retention.