降雨条件下透水混凝土渗透性能研究

透水混凝土作为一种环境友好型道路铺装材料在城市道路中得到了广泛应用。通过设计新型渗透性检测试验装置,提出模拟降雨条件检测不同降雨条件下透水混凝土渗透性试验方法,探讨不同降雨条件对透水混凝土渗透性能的影响。研究表明:(1)新设计的渗透性检测装置能准确反映透水混凝土工作状态;(2)模拟降雨法与常水头法相比,测得的渗透系数均较小一些,并有随孔隙率的增加,两者差值增大的趋势。

Study on Performance of Pervious Concrete Permeability at Different Rainfall Intensities

Pervious concrete as an environment-friendly road pavement material has been widely applied in urban roads. By designing new permeability testing apparatus, the article puts forward the test method to test and inspect the pervious concrete permeability at the different rainfall intensities by the simulated rainfall, and discusses the influence of the different rainfall intensities on the performance of pervious concrete permeability. The study shows that the newly designed permeability testing inspecting device can accurately reflect the pervious concrete work status, and the measured permeable coefficient of the simulated rainfall method is smaller than the constant water head method, and the different value of the both will increases with the increment of porosity.