玄武岩纤维长度对碱激发-矿渣砂浆性能的影响  

Effect of basalt fiber length on properties of alkali-activated slag mortar

作　　者：缪贵福 Miao Guifu(Huainan Municipal Engineering Co.,Ltd.,Huainan 232007,China)

机构地区：[1]淮南市政工程公司,安徽淮南232007

出　　处：《山西建筑》2020年第12期1-3,共3页Shanxi Architecture

基　　金：淮南市科技计划项目(2018A363)

摘　　要：研究了不同长度的玄武岩纤维对碱激发-矿渣砂浆的影响。对新拌砂浆流动度、抗压强度、抗折强度、自收缩和干缩进行了分析。结果表明,随着纤维长度的增加,砂浆的流动度逐渐降低,自收缩增大,干燥收缩减小。玄武岩纤维显著提高了砂浆的力学性能,6 mm的玄武岩纤维效果最佳,28 d抗压强度提高5.58%,抗折强度提高21.49%。The effects of basalt fibers of different lengths on alkali-activated slag mortar were studied. The fluidity,compressive strength,bending strength,self-shrinkage and dry shrinkage of newly mixed mortar were analyzed. The results show that with the increase of fiber length,the fluidity of mortar decreases gradually,the self-shrinkage increases,and the drying shrinkage decreases. Basalt fiber significantly improved the mechanical properties of the mortar,with the best effect of 6 mm basalt fiber,the 28 d compressive strength increased by 5. 58%,the flexural strength increased by 21. 49%.

关 键 词：玄武岩纤维 流动度 力学性能 收缩性能 

分 类 号：TU502[建筑科学—建筑技术科学]