陶瓷纤维对混凝土高温性能影响的研究  

Study on Effect of Ceramic Fiber on High Temperature Properties of Concrete

作　　者：杨佳 苗雷强 孙国文 YANG Jia;MIAO Lei-qiang;SUN Guo-wen(Department of Construction Engineering and Legal Affairs,Hebei Professional College of Political Science and Law,Shijiazhuang 050000,China;Hebei Architectural Science Research Institute Co.,Ltd.,Shijiazhuang 050000,China;School of Materials Science and Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050000,China)

机构地区：[1]河北政法职业学院建筑工程与法务系,河北石家庄050000 [2]河北省建筑科学研究院有限公司,河北石家庄050000 [3]石家庄铁道大学材料科学与工程学院,河北石家庄050000

出　　处：《水电能源科学》2025年第4期133-137,共5页Water Resources and Power

基　　金：河北省自然科学基金项目(E2022210103)。

摘　　要：为提高混凝土的高温性能,制备了陶瓷纤维改性混凝土(CRFMC),通过高温试验和力学试验,研究了陶瓷纤维对混凝土力学性能、高温后质量损失率和高温后抗压强度的影响,并与玄武岩纤维改性混凝土(BFMC)进行了对比。结果表明,陶瓷纤维(CRF)和玄武岩纤维(BF)均可以提高混凝土的力学性能和高温性能,两者的最佳体积掺量分别为0.2%、0.1%。当纤维体积掺量为0.1%时,BFMC的力学性能优于CRFMC。当纤维体积掺量为0.2%、0.3%时,CRFMC的力学性能优于BFMC。200~600℃高温作用后,CRFMC与BFMC的质量损失率和抗压强度保持率相近;800℃高温作用后,CRFMC的质量损失率较BFMC小,抗压强度保持率较BFMC大,表明CRF对800℃高温作用后混凝土性能的提高效果优于BF。研究结果可促进CRF在耐高温混凝土中的应用。In order to improve the high temperature properties of concrete,ceramic fiber modified concrete(CRFMC)is prepared.The effects of ceramic fiber on mechanical properties,mass loss rate and compressive strength after high temperature of concrete are studied by high temperature test and mechanical test,and compared with basalt fiber modified concrete(BFMC).The results show that both ceramic fiber and basalt fiber can improve the mechanical properties and high temperature properties of concrete,and the optimal volume mixing content of the two fibers is 0.2%and 0.1%,respectively.When the fiber volume mixing content is 0.1%,the mechanical properties of BFMC are better than CRFMC.When the fiber volume mixing content is 0.2%and 0.3%,the mechanical properties of CRFMC are better than BFMC.The mass loss rate and compressive strength retention rate of CRFMC and BFMC are similar at 200-600℃.At 800℃,the mass loss rate of CRFMC is smaller than that of BFMC,and the compressive strength retention rate is larger than that of BFMC.Ceramic fiber is better than basalt fiber in improving the properties of concrete at 800℃.The research results can promote the application of ceramic fiber in high temperature resistant concrete.

关 键 词：混凝土 陶瓷纤维 玄武岩纤维 高温 力学性能 

分 类 号：TV431.2[水利工程—水工结构工程] TU528[建筑科学—建筑技术科学]