粉煤灰基地聚合物砂浆力学性能影响因素研究  

Study on the factors influencing the mechanical properties of fly ash-based geopolymer mortar

作　　者：张森龙 刘杰胜 段诗雪 张曼 谭晓明 谷重 ZHANG Senlong;LIU Jiesheng;DUAN Shixue;ZHANG Man;TAN Xiaoming;GU Zhong(School of Civil Engineering and Architecture,Wuhan Polytechnic University,Wuhan,Hubei 430023,China;Pilot-scale Platform of Marine Engineering Structural Protective Materials,Wuhan,Hubei 430023,China;Jiangsu Yanghe Xincheng New Material Co.,Ltd,Suqian,Jiangsu 223800,China)

机构地区：[1]武汉轻工大学土木工程与建筑学院,湖北武汉430023 [2]武汉市海洋工程结构防护材料中试平台,湖北武汉430023 [3]江苏洋河新城新材料有限责任公司,江苏宿迁223800

出　　处：《湖南城市学院学报(自然科学版)》2025年第2期14-20,共7页Journal of Hunan City University:Natural Science

基　　金：湖北省自然科学基金项目(2021CFB583)。

摘　　要：为优化粉煤灰基地聚合物的砂浆配合比,进而提高地聚合物砂浆的力学性能,本文通过正交试验系统地研究了水泥掺量、砂胶比、水胶比和碱当量4个关键因素对地聚合物砂浆在不同龄期下的强度、韧性等力学性能的影响。结果表明,在研究范围内,水泥掺量为6%、砂胶比为0.4、水胶比为0.35及碱当量为7%时地聚合物砂浆抗折强度最高;水泥掺量为6%、砂胶比为0.2、水胶比为0.35及碱当量为7%时地聚合物砂浆的抗压强度最高;水泥掺量为15%、砂胶比为0.4、水胶比为0.25及碱当量为5%时地聚合物砂浆的静力韧性最佳;4个因素中,砂胶比和碱当量对地聚合物砂浆的力学性能影响最为显著,水胶比与水泥掺量次之。In order to optimize the mix proportion of fly ash-based geopolymer mortar and enhance its mechanical properties,this paper systematically explores the influence of four key factors,including cement content,sand-binder ratio,water-binder ratio and alkali equivalent,on the mechanical properties such as strength and toughness of geopolymer mortar at different ages through orthogonal experiments.The results indicate that:within the scope of the study,the flexural strength of geopolymer mortar reaches its optimal value when the cement content is 6%,the sand-binder ratio is 0.4,the water-binder ratio is 0.35,and the alkali equivalent is 7%;the compressive strength of geopolymer mortar is at its highest when the cement content is 6%,the sand-binder ratio is 0.2,the water-binder ratio is 0.35,and the alkali equivalent is 7%;the static toughness of geopolymer mortar is the best when the cement content is 15%,the sand-binder ratio is 0.4,the water-binder ratio is 0.25,and the alkali equivalent is 5%;among the four factors,the sand-binder ratio and alkali equivalent have the most significant influence on the mechanical properties of geopolymer mortar,followed by the water-binder ratio and cement content.

关 键 词：粉煤灰 地聚合物砂浆 正交试验 力学性能 曲面拟合分析 

分 类 号：TU528[建筑科学—建筑技术科学]