耐碱玻璃纤维对泡沫混凝土性能的影响  

Effect of Alkali-resistant Glass Fiber on Properties of Foam Concrete

作　　者：段小芳 夏正兵 DUAN Xiao-fang;XIA Zheng-bing(School of Construction Engineering,Nantong Open University,Nantong 226006,China)

机构地区：[1]南通开放大学建筑工程学院,江苏南通226006

出　　处：《南通职业大学学报》2022年第2期101-104,共4页Journal of Nantong Vocational University

基　　金：2019年南通市科技计划指导性项目(MSZ19224)。

摘　　要：为研究耐碱玻璃纤维对泡沫混凝土各项性能的影响,在泡沫混凝土中掺入体积率为0、0.4%、0.8%、1.2%、1.6%的耐碱玻璃纤维,研究泡沫混凝土的各项性能发展变化规律。结果表明,随着耐碱玻璃纤维掺量的提高,泡沫混凝土的吸水率、吸湿率、早期收缩应变、导热系数降低,抗压强度、劈裂抗拉强度、拉压比均提高,但纤维掺量高于1.2%时,吸水率提高,抗压强度降低。综合考虑纤维对泡沫混凝土各项性能的影响,建议耐碱玻璃纤维最优掺量为体积率1.2%。To examine the effect of alkali-resistant glass fiber on the properties of foamed concrete,alkaliresistant glass fibers with volume ratio of 0,0.4%,0.8%,1.2%and 1.6%are mixed into it to discover the law of changes of foam concrete properties’.The results show that with the increase of volume ratio of alkali-resistant glass fiber,the water absorption,moisture absorption rate,early-age shrinkage and thermal conductivity of foam concrete decrease while the compressive strength,splitting tensile strength and tension compression ratio increase.However,when the fiber ratio goes above 1.2%,the water absorption increases and the compressive strength decreases.Given the influence of fiber on the properties of foam concrete,it is suggested that the optimum volume of alkali-resistant glass fiber should be 1.2%.

关 键 词：耐碱玻璃纤维 泡沫混凝土 吸水性 吸湿性 早期收缩 导热系数 力学性能 

分 类 号：TU528[建筑科学—建筑技术科学]