Review on frost resistance and anti-clogging of pervious concrete  

作　　者：Zhuo Wang Zhichen Liu Feng Zeng Kun He Shuaicheng Guo 

机构地区：[1]China Railway Construction Group Co.,Ltd.,Beijing 100040,China [2]State Key Laboratory of Bridge Safety and Resilience,College of Civil Engineering,Hunan University,Changsha 410082,China

出　　处：《Journal of Traffic and Transportation Engineering(English Edition)》2024年第3期481-496,共16页交通运输工程学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(52208246,U22A20122);the Natural Science Foundation of Hunan Province(2023JJ40142);the Natural Science Foundation of Changsha(kq2202160);the Provincial Special Project for the Construction of National Sustainable Development Agenda Innovation Demonstration Zone in Chenzhou City(2023sfq50);the Fundamental Research Funds for the Central Universities(531118010493);Training Program for Excellent Young Innovators of Changsha(kq2107010)。

摘　　要：Pervious concrete is a special type of concrete that is of high porosity and contains no or a small amount of fine aggregate,and it is an important basic material for sponge city construction.The presence of a large number of connected pores inside pervious concrete leads to a marked difference in durability failure mechanism compared with that of ordinary concrete.In this study,the frost resistance and anti-clogging of pervious concrete were introduced in detail,and the methods to improve their performance were summarized systematically.The cracking pattern of pervious concrete is influenced by geometric characteristics and three-dimensional morphological features of pores,resulting in its crack generation,development,and geometry being significantly different from those of ordinary concrete,thus leading to different freeze-thaw cycle mechanisms.In addition,due to its different pore structure compared to ordinary concrete,three types of clogging mechanisms,affecting the long-term permeability of pervious concrete were elaborated systematically(i.e.,physical clogging,biological clogging,and chemical clogging).And the ways to improve the anti-clogging of pervious concrete are systematically presented from multiple perspectives.Finally,in order to broaden the engineering applications of pervious concrete,some research proposals are presented in this study.

关 键 词：Pervious concrete Connected pore Frost resistance Clogging mechanism 

分 类 号：U414[交通运输工程—道路与铁道工程]