Effect of carbon fibers oxidation treatment on the properties of its reinforced cement
Carbon fibers (T700) were slightly oxidized at 773K in air for a short time. Then carbon fiber-reinforce cement（CFRC）was produced by the oxidized and un-oxidized fibers as reinforced phase. Through detecting the physical and mechanical properties of CFRC, observing the microstructure of the fracture of the Side Bend Test samples, the result shows that, by adding the right amount of carbon fibers, the density of CFRC reduces while porosity enhances. At the same time, both the bending strength and the compressive strength enhance. SEM morphology shows that the fracture of carbon fibers is fibers pull-out failure mainly. Carbon fibers with slight oxidation can improve the combine state of the interface between the fibers and the matrix, and which results in the mechanical properties of the CFRC greatly improved.
Carbon fiber-reinforced cement Oxidation treatment Mechanical properties
Xian-feng Xu Yan-yan Hu Xiao-yu Han
Key Laboratory of Ministry of Education for Conveyance and Equipment, East China Jiaotong University
国内会议
长沙
英文
1-5
2010-06-19（万方平台首次上网日期，不代表论文的发表时间）