Abstract: Drawing a comparison between pervious concrete and common concrete in regar d to the function, the biggest differentiation is that pervious concrete have good pervio us performance. The paper studies pervious concrete'structure characteristic,pervious indexes and affected factors, establishes the relation of pervious performance with void fraction, permeability coefficient and mechanics strength though the way of experiment, which mainly to supply the frame of reference of pervious concrete'ratio design and direct the structure design of pervious concrete road surface.

Key words: pervious concrete, structure characteristic, pervious indexes, mechanics strength

摘要： 就功能而言,透水砼与普通砼相比较,最大的区别就是其良好的透水性能.本文分析了透水砼的结构特点、透水指标及其影响因素,通过试验确定了透水砼的透水系数,建立了透水性能与孔隙率、透水系数与力学强度之间的关系,目的是为透水砼配合比设计提供参考依据并指导透水砼路面的结构设计.

关键词: 透水砼, 结构特点, 透水指标, 力学强度