Review on frost resistance and anti-clogging of pervious concrete

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外文摘要：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 or-dinary concrete.In this study,the frost resistance and anti-clogging of pervious concrete were intro-duced in detail,and the methods to improve their performance were summarized sys-tematically.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.

外文关键词：

Pervious concreteConnected poreFrost resistanceClogging mechanism

作者：

Zhuo Wang、Zhichen Liu、Feng Zeng、Kun He、Shuaicheng Guo

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作者单位：

China Railway Construction Group Co.,Ltd.,Beijing 100040,China

State Key Laboratory of Bridge Safety and Resilience,College of Civil Engineering,Hunan University,Changsha 410082,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Hunan ProvinceNatural Science Foundation of ChangshaProvincial Special Project for the Construction of National Sustainable Development Agenda Innovation Demonstration Zone in Fundamental Research Funds for the Central UniversitiesTraining Program for Excellent Young Innovators of Changsha

项目编号：

52208246U22A201222023JJ40142kq22021602023sfq50531118010493kq2107010

出版年：

2024

DOI：

10.1016/j.jtte.2023.05.008

交通运输工程学报(英文版)

CSTPCD

ISSN：2095-7564

年,卷(期)：2024.11(3)