碳纤维混凝土的抗渗性能试验研究  

Experimental Study on Impermeability of Carbon Fiber-reinforced Concrete

作　　者：徐永芝 陈丽芳 XU Yongzhi;CHEN Lifang(School of Civil Engineering, Xuchang University, Xuchang 461000, China)

机构地区：[1]许昌学院土木工程学院,河南许昌461000

出　　处：《许昌学院学报》2018年第4期31-35,共5页Journal of Xuchang University

基　　金：国家自然科学基金(50779032)

摘　　要：采用正交实验法分析了影响混凝土抗渗性能的各种因素.通过制备碳纤维混凝土试件,并对试件进行水压力测试,研究了各种因素对混凝土抗渗性的影响规律.试验结果表明:碳纤维和硅粉对混凝土的抗渗性影响明显,当掺入质量分数为0.5%的碳纤维、0.019%的甲基纤维素和0.18%的硅粉时,C40混凝土的渗透高度由5.7 cm降至2.7 cm,降幅为52.6%;碳纤维的长度对混凝土的抗渗性没有显著影响.Various factors affecting the permeability of concrete were analyzed by orthogonal experimental method. Through the preparation of carbon fiber concrete specimens and the test of water pressure on the speci- mens, the influence of various factors on the permeability of concrete was studied. The experimental results showed that carbon fiber and silica fume had a significant influewe on the impermeability of concrete. When blended with 0.5% carbon fiber,0. 019% methyl cellulose and 0.18% silica fume respectively, the pemleability height of C40 concrete decreased from 5.7cm to 2.7cm, with a decline of 52.6%. The length of carbon fiber had no significant influence on the permeability of concrete.

关 键 词：碳纤维混凝土 抗渗性 水压法 正交实验法 

分 类 号：TU528.2[建筑科学—建筑技术科学]