透水型泡沫混凝土孔结构特征对渗透性能的影响  

Influence of Pore Structure of Permeable Foam Concrete on Permeability

作　　者：周利睿 季天一 韩天宇 陶开利 耿飞[2] 解建光[2] ZHOU Li-rui;JI Tian-yi;HAN Tian-yu;TAO Kai-li;GENG Fei;XIE Jian-guang(China Design Group Co.,Ltd.,Nanjing 210014,China;Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Nanjing Housing Construction and Development Co.Ltd.,Nanjing 210000,China)

机构地区：[1]华设设计集团股份有限公司,南京210014 [2]南京航空航天大学,南京210016 [3]南京安居保障房建设发展有限公司,南京210000

出　　处：《建筑节能（中英文）》2021年第6期118-121,共4页Building Energy Efficiency

摘　　要：为研究透水型泡沫混凝土气孔结构对材料渗透性能的影响,通过数字图像处理技术对气孔结构图像进行处理,得出了泡沫混凝土面孔隙率、平均孔径、圆度等气孔结构参数,分析了孔结构特征与渗透系数的相关性。结果表明:透水型泡沫混凝土的气孔结构对其渗透性能有较大影响;细砂的掺入能显著提高泡沫混凝土的渗透性能;气孔的平均孔径、圆度值越大,透水型泡沫混凝土的渗透性能越优。In order to study the pore structure effect of the permeable foam concrete on the permeability, the pore structure images are processed by digital image processing technology, and the porosity parameters including the porosity, average pore diameter and roundness are gained. The correlation between pore structure characteristics and permeability coefficient is analyzed. The results show that the pore structure has a great influence on its permeability;the incorporation of fine sand can significantly improve the permeability of the foam concrete;the greater the average pore size and roundness of the pore, the better the permeability of the permeable foam concrete.

关 键 词：泡沫混凝土 气孔结构 渗透系数 海绵城市 

分 类 号：TU528.2[建筑科学—建筑技术科学]