摘要
透水性混凝土既要有一定的强度,又要有良好的透水性,成型方法与普通混凝土不同.本试验采用振动成型的方法,比较了不同水灰比、不同目标孔隙率下,不同振捣时间对透水性混凝土抗压强度、透水系数及孔隙率的影响.通过试验得出:振捣时间长短对透水性混凝土的抗压强度、透水系数、孔隙率有一定的影响,且存在一个合理的振捣时间.
Pervious concrete, which has a certain strength as well as good permeability, is different from ordinary concrete in the way of molding. Through vibration-molding method, this experiment compares how different vibrating time influences the pervious concrete under the different water-cement ratio and different target porosity. The experimental data finally shows that time of vibration has a certain influence on the permeability of concrete compressive strength, permeability coefficient, porosity of pervious concrete, and there is a reasonable vibration time.
出处
《湖南工程学院学报（自然科学版）》
2011年第3期76-80,共5页
Journal of Hunan Institute of Engineering(Natural Science Edition)
基金
湖南省教育厅科研资助项目(07C284)
关键词
透水性混凝土
振捣时间
抗压强度
透水系数
孔隙率
pervious concrete
vibration time
compressive strength
permeability coefficient
porosity
