常州大学 城市建设学院，江苏 常州 213164
朱平华（1966—），男，湖北天门人，常州大学教授，博士生导师，博士.E-mail：zph@cczu.edu.cn
朱平华（1966—），男，湖北天门人，常州大学教授，博士生导师，博士.E-mail：zph@cczu.edu.cn
TU528.37
国家自然科学基金资助项目（51878081）；江苏省研究生科研与实践创新计划项目（KYCX21_2847）
School of Urban Construction， Changzhou University， Changzhou 213164， China
通过暴雨堵塞试验，研究了新型再生透水混凝土（NRPC）的抗堵塞性能，分析了NRPC孔径（d）和堵塞物粒径（r）对NRPC堵塞结构、透水系数、堵塞深度和堵塞物通过率的影响.结果表明：NRPC形成的堵塞结构由孔径和堵塞物粒径的比值（d/r）共同决定，暴雨作用后的堵塞结构分为单颗粒表面堵塞、单颗粒孔道堵塞和多颗粒孔道堵塞；透水系数的降低主要发生在第1次暴雨堵塞循环中，小粒径堵塞物（r
The clogging resistance of novel recycled pervious concrete（NRPC） was studied by designing a clogging test under the environment of rainstorm with a view to analyze the influence of pore diameter of NRPC（d） and particle size（r） of clogging materials on clogging structure， permeability coefficient， clogging depth and clogging material passing ratio. The results show that the clogging structure of NRPC is determined by the ratio of pore diameter to clogging material particle size（d/r）. The clogging structure can be divided into single particle surface clogging， single particle pore channel clogging and multi particle pore channel clogging after rainstorms. The decrease of permeability coefficient mainly occurs in the first rainstorm clogging cycle. Multi particle clogging caused by small particle size clogging materials（r <1.18 mm） is the main reason for the decrease of NRPC permeability coefficient. With the increase of d/r， the stability of multi particle pore channel clogging structure decreases. When d>r， the smaller d/r is， the deeper the NRPC pore channel is clogging. With the increase of d/r， the passing ratio of clogging materials increases， and the screening effect of pore channels decreases.
朱平华,史志浩,严先萃,杨磊,宗美荣.暴雨作用下新型再生透水混凝土的抗堵塞性能[J].建筑材料学报,2023,26(10):1088-1095
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