多孔质火山岩透水混凝土试验研究  

Experimental Study on Pervious Concrete Made with Porous Volcanic Rock

作　　者：马鹏[1] 高洪波[1] 邹延权 陈云 

机构地区：[1]海南大学土木建筑工程学院,海南海口570228

出　　处：《施工技术》2017年第9期43-47,共5页Construction Technology

基　　金：海南省重点研发计划(ZDYF2016151);海南省科协青年科技英才创新计划(201501)

摘　　要：采用多孔质火山岩为骨料制作了不同孔隙率的透水混凝土试件,研究了孔隙率对抗压强度、透水系数的影响;制作了尺寸为100mm×100mm×100mm,100mm×100mm×150mm和?113mm×150mm的透水混凝土试件,研究了透水厚度、试件形状对透水系数的影响。试验表明:透水混凝土28d抗压强度与实测孔隙率满足线性递减关系;7d透水系数与实测孔隙率满足线性递增关系;透水厚度与透水系数无直接关联;试件的形状与透水系数有关,在透水面积相同的条件下,圆柱体试件比立方体试件透水系数高约10%。Using different porosity of pervious concrete specimen made with porous volcanic rock, the effect of porosity on compressive strength and permeation coefficient was studied. By three different sizes of specimen（100mm ×100mm× 100mm, 100mm×100mm× 150mm, φ113mm× 150mm） ,the effect of previous thickness and shape on permeation coefficient was analyzed. The experimental results show that 28 day strength value gets smaller and 7 days permeation coefficient gets bigger with the increase of the porosity. The permeable thickness is not directly connected with the permeation coefficient, but the shape of pervious concrete specimen is related to permeation coefficient. With the same pervious area, the permeation coefficient of cylindrical specimen is about 10% higher than cube specimen.

关 键 词：混凝土 透水混凝土 多孔火山岩 抗压强度 透水系数 试验研究 

分 类 号：TU528[建筑科学—建筑技术科学]