Effect of Pore Structure on Purification of Pervious Concrete  

作　　者：Xinping Li Xiling Zhou 

机构地区：[1]College of Water Conservancy and Civil Engineering,Hunan Agricultural University,Changsha 410128,Hunan,China

出　　处：《Journal of Architectural Research and Development》2025年第2期1-8,共8页建筑发展研究

基　　金：Hunan Provincial Department of Water Resources:Research on Formula Optimization and Performance Evaluation System of Ecological Concrete for River Water Quality Purification Based on the Dual Carbon Goal(Project No.:XSKJ2024064-44)。

摘　　要：By adding zeolite aggregate with good adsorption properties,different mix ratios of added zeolite pervious concrete(ZPC)were designed to compare the water purification effect of ordinary pervious concrete and water purification tests that were conducted.The pore characteristics of the pervious concrete were identified using three-dimensional reconstruction software and the relationship between pore structure and water purification performance was quantified by gray entropy correlation analysis.The results showed that the purification efficiency of zeolite-doped pervious concrete was 17.6%-22.3%higher than that of ordinary pervious concrete.The characteristic parameters of the pore structure of permeable concrete,i.e.planar porosity and tortuosity,were determined using three-dimensional reconstruction software.The correlation between the degree of tortuosity and the removal rate reached more than 0.90,indicating that the internal pore structure of pervious concrete has a good correlation with the water purification performance.

关 键 词：Pervious concretes Water purification Pore structure characteristics CT scanning 

分 类 号：TU528.2[建筑科学—建筑技术科学]