A method was introduced to characterize the internal pore structure of pervious concrete specimens and obtain connected pores using X-CT technology.The effects of water-cement ratio,aggregate-cement ratio,and aggregate particle size on the pervious coefficient and pore structure of specimens were studied.The relationship between effective porosity and total porosity was analyzed,and an empirical model for the pervious coefficient of pervious concrete was established.The results indicate that increasing the water-cement ratio will reduce the pervious coefficient and connectivity porosity of the specimens.As the aggregate-cement ratio and aggregate size increase,the connectivity porosity and pervious coefficient of the specimen show an upward trend.
维普
万方数据