透水性泡沫混凝土的试验研究  

THE EXPERIMENTAL ANALYSIS ON PERMEABLE PERFORMANCE OF FOAMED CONCRETE

作　　者：许迎春[1] 习雨同[2] 林泳城[3] 张龙[2] 周利睿 李进[2] 

机构地区：[1]江苏省墙体材料改革办公室,南京210008 [2]南京航空航天大学土木工程系,南京210016 [3]福建省建筑科学研究院,福州350002

出　　处：《低温建筑技术》2016年第10期8-11,共4页Low Temperature Architecture Technology

摘　　要：为开展透水性泡沫混凝土在透水铺装基层结构的应用,采用单因素试验法研究发泡剂、水灰比和细砂对透水泡沫混凝土渗透系数、抗压强度和软化系数的影响。试验结果表明:发泡剂种类和水灰比是影响泡沫混凝土透水系数等性能的关键因素,使用专用发泡剂以及水灰比为0.27时泡沫混凝土透水性最好,渗透系数为0.73 cm·s-1,28d抗压强度为3.12MPa;使用少量的砂替代水泥,可改善泡沫混凝土的渗透性,当砂掺量为50%时混凝土的渗透系数最大。In order to carry out the application of permeable foamed concrete in base structure of permeable pavement, the effects of type of foaming agent, water-cement ratio and sand content on prop- erties of permeable foamed concrete including permeability, compressive strength and softening coeffi- cient were studied, by single factor expe cement ratio are the key factor to affect riments. The results indicated： type of foaming agent and water- permeability, compressive strength and softening coefficient of permeable foamed concrete has the best properties, in the water-cement ratio of 0. 27 and dedicated foa- ming agent, the permeability of foamed concrete is 0. 73 cm·s^-1, and the compressive strength of 28d is 3. 12MPa. The permeability of foamed concrete take the maximum with the sand content of 50% and that sand content has obvious ability of improving the permeability of foamed concrete.

关 键 词：泡沫混凝土 渗透系数 水灰比 发泡剂 

分 类 号：TU528.2[建筑科学—建筑技术科学]