土木与环境工程学报（中英文）2024，Vol.46Issue(3)：189-197,9.DOI:10.11835/j.issn.2096-6717.2022.051
稻草纤维增强泡沫混凝土物理力学性能试验研究
Experimental study on the physical and mechanical properties of straw fiber reinforced foam concrete
摘要
Abstract
In order to study the properties of straw fiber reinforced foam concrete,fiber-reinforced foam concrete was prepared by the physical foaming method with ordinary Portland cement as the main cementitious material,silica fume,metakaolin and fly ash as the supplementary cementitious materials,and rice straw fiber as reinforcement material.The effects of straw fiber content on the density,water absorption,compressive strength,flexural strength,splitting tensile strength and frost resistance of foam concrete were investigated by full factorial tests at different water-to-binder ratios and foaming agent dosages.The results showed that the density,compressive strength and splitting tensile strength of straw fiber reinforced foam concrete increased first and then decreased with the increase of fiber content for different water-to-binder ratios and foaming agent dosages.The compressive strength increased with density as a power function.The splitting tensile strength increased exponentially with the increase of compressive strength.When the water-to-binder ratio was 0.45,the flexural strength increased first and then decreased with the increase of fiber content.When the water-to-binder ratio was 0.50,the flexural strength increased with the increase of fiber content.The incorporation of fiber increased the pore size and water absorption rate of foam concrete,and reduced its frost resistance.关键词
稻草纤维/泡沫混凝土/泡孔尺寸/力学性能/抗冻性能Key words
straw fiber/foam concrete/bubble pore size/mechanical properties/frost resistance分类
建筑与水利引用本文复制引用
王秀丽,潘旭宾,吴征..稻草纤维增强泡沫混凝土物理力学性能试验研究[J].土木与环境工程学报（中英文）,2024,46(3):189-197,9.基金项目
国家重点研发计划(2019YFD1101004) （2019YFD1101004）
甘肃省建设厅项目(JK2020-26) National Key Research and Development Plan of China(No.2019YFD1101004) （JK2020-26）
Construction Department Project of Gansu Province(No.JK2020-26) （No.JK2020-26）
