碳纤维再生混凝土力学性能的试验研究  

Experimental research on mechanical properties of carbon fiber recycled concrete

作　　者：王建超[1] 陆佳韦 周静海[1] 梅长周 WANG Jianchao;LU Jiawei;ZHOU Jinghai;MEI Changzhou(School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《混凝土》2018年第12期95-99,103,共6页Concrete

基　　金：国家自然科学基金资助项目(51678374);辽宁省科技厅资助项目(20180550696);辽宁省教育厅资助项目(LJZ2017028)

摘　　要：研究了短切碳纤维的加入对再生混凝土力学性能的影响,以C40再生混凝土为研究对象,通过对不同的纤维长度、纤维掺入量、再生骨料掺入量、水灰比、龄期等因素进行分析,总共制作了198块标准立方体试块,研究各变量对混凝土力学性能产生的影响。试验结果表明:其中对再生混凝土强度改善最为明显的是碳纤维长度为6 mm,纤维掺量为0.12%;50%再生骨料掺量的力学性能较100%掺量的力学性能更为优越;混凝土力学性能随水灰比的增大而减小;龄期对混凝土抗压强度的影响也很显著。It discusses the effects on mechanical properties when adding the chopped carbon fiber to recycled concrete,considering the C40 recycled concrete as the research object.Taking the fiber length,fiber content,recycled aggregate content,water cement ratio,curing age and other factors into account,a total of 198 pieces of production the standard cube,to study the influence of concrete strength.The experimental results show that the most obvious improvement for the mechanical properties of recycled concrete is that the length of carbon fiber is 6 mm and the fiber content is 0.12%.The mechanical properties of 50% recycled aggregate are more superior than those of100% The mechanical properties decrease with the increase of water-cement ratio.The effect of curing age on the compressive strength of concrete is also significant.

关 键 词：再生混凝土 碳纤维 抗压强度 劈裂抗拉强度 

分 类 号：TU528.041[建筑科学—建筑技术科学]