摘要
随着城市化的推进,混凝土、沥青等非渗透性物质已经完全覆盖了城市的表面,造成了城市热岛效应、地下水补充不足、车辆噪声污染等现象.透水混凝土是一种环保型的、可持续的路面材料,由于其特殊的内部结构,具有控制雨水径流、改善水质、补给地下水、降低路面轮胎噪声、调节路面温湿度、缓解城市热岛效应等环境优势.但是由于透水混凝土的力学性能普遍低于一般的混凝土,从而制约了其在实际工程中的应用.本文对近年来对透水混凝土抗压性能和透水性能相关研究进行了简述,分别从水灰比、多种矿物掺合料和纤维等因素对透水混凝土性能的影响进行分析,对透水混凝土进一步研究和应用具有重要意义.
Abstract
With the advancement of urbanization,concrete,asphalt and other non-permeable substances have completely covered the surface of the city,resulting in urban heat island effect,insufficient groundwater recharge,vehicle noise pollution and other phenomena.Pervious concrete is an environmentally friendly and sustainable pavement material.Due to its special internal structure,it has environmental advantages such as controlling stormwater runoff,improving water quality,replenishing groundwater,reducing road tire noise,regulating road temperature and humidity,and alleviating urban heat island effect However,the mechanical properties of pervious concrete are generally lower than those of ordinary concrete,which restricts its application in practical engineering.In this paper,the relevant researches on the compressive and pervious properties of pervious concrete in recent years are briefly reviewed.The influences of water-cement ratio,various mineral admixtures and fibers on pervious concrete properties are analyzed respectively,which is of great significance for further research and application of pervious concrete.
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