泡沫混凝土孔结构对抗压强度的影响研究

（1.南京航空航天大学 土木工程系，江苏 南京  210016；2.无锡市墙材革新和散装水泥办公室，江苏 无锡  214001；3.山西省交通规划勘察设计院，山西 太原 030012）
 

    摘要：研究了水胶比对600~900级泡沫混凝土平均孔径、孔隙率及抗压强度的影响。结果表明，泡沫混凝土孔隙率随水胶比（0.40~0.65）增大呈下降趋势，平均孔径与之相反，抗压强度随水胶比的增大呈现先提高后降低趋势；对同一级别泡沫混凝土孔隙率与抗压强度进行拟合，二者具有良好相关性。

    关键词：泡沫混凝土；抗压强度；孔隙率；平均孔径；水胶比

    中图分类号：TU528.2        文献标识码：A        文章编号：1001-702X（2018）03-0130-04

 

Effect of pore structure on the compressive strength of foamed concrete

DAI Yuchen1，GAO Peiwei1，LIN Hui2，ZHU Yuxiang2，WU Chunxiao2，GENG Fei1，SU Jing3

（1.Department of Civil Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China；

　2.Wuxi City Wall Materials Innovation and Bulk Cement Office，Wuxi 214001，China；

3.Communication Plan Survey and Design Institute of Shanxi Province, Taiyuan 030012，China）

   Abstract：In this paper，the effects of water-cement ratio（W/B） on the average pore size，porosity and compressive strength of 600 to 900 grade foamed concrete were studied. The results show that the porosity of foam concrete decreases while the average pore size increases with the increasing of water-binder ratio（0.40~0.65）. The compressive strength firstly increases and then decreases with the increasing of water-binder ratio. The porosity and compressive strength of the same grade foamed concrete were fitted and the correlation between them was superior.

    Key words：foamed concrete，compressive strength，porosity，average pore size，water-binder ratio