多壁碳纳米管与钢纤维对混泥土抗压强度与抗冲击性能的影响  

Influence of carbon nanotubes and steel fibers on compressive strength and impact resistance of concrete

作　　者：谌德洋 林泽桦 SHEN Deyang;LIN Zehua(School of Civil Engineering and Geomatics,Jiangxi University of Science and Technology,Ganzhou 341000,China)

机构地区：[1]江西理工大学土木与测绘工程学院,江西赣州341000

出　　处：《贵州科学》2023年第6期68-73,共6页Guizhou Science

摘　　要：研究了掺碳纳米管、钢纤维、碳纳米管及钢纤维混掺时对混凝土抗压强度和抗冲击性能的影响。结果表明:掺入碳纳米管和钢纤维均能提高混凝土抗压强度;单掺碳纳米管的最优质量分数为0.1%、单掺钢纤维的最优体积分数为2%;单掺或混掺纤维对钢筋混凝土的抗冲击性能的提升更为明显,同时当混掺两种纤维时对试件抗压强度和抗冲击性能均表现为正混杂效应。The effect of carbon nanotubes,steel fibers,and carbon nanotubes plus steel fibers on the compressive strength and impact resistance of concrete are studied.The results show that the compressive strength of concrete can be improved by adding carbon nanotubes or steel fibers.The optimal mass fraction of carbon nanotubes is 0.1%,and the optimal volume fraction of steel fibers is 2%.The impact resistance of concrete is improved obviously by adding steel fibers or carbon nanotubes plus steel fibers.The addition of carbon nanotubes plus steel fibers has a positive hybrid effect on the compressive strength and impact resistance of the specimens.

关 键 词：钢纤维 碳纳米管 混凝土 抗压强度 抗冲击性能 

分 类 号：TU525[建筑科学—建筑技术科学]