摘要
为了进一步研究碳纤维混凝土(CFRC)的力学性能,该文基于试验探讨了短切碳纤维掺量对混凝土立方体试块抗压强度的影响,并得出碳纤维最佳掺量值;同时对CFRC试块在不同碳纤维掺量条件下,受压破坏全过程和混凝土试块裂缝出现及发展进行了对比分析;基于素混凝土试块的破坏模式,对CFRC试块的破坏形态进行了描述,利用不同碳纤维掺量下的变形-荷载曲线,得出适量的碳纤维可以有效的改善混凝土抗压强度、受压破坏变形等力学特性。
To study the mechanical behavior of carbon fiber reinforced concrete （CFRC） further, this paper, based on the experiment and related documents, studies the effects of the dosage of short carbon fiber on the compressive strength of concrete cube test, and obtain the optimum dosage of carbon fiber. At the same time, the whole process of compression failure of the CFRC test tube is analyzed, and the difference between the crack appearance and development of a CFRC test tube under different dosages is compared. Based on the failure modes of plain concrete test blocks, the failure modes of the CFRC test tube are described, and according to the curve of deformation - load under different dosages, it is shown that carbon fiber can effectively improve the failure deformation and compressive strength of concrete.
出处
《工程力学》
EI
CSCD
北大核心
2013年第B06期226-231,共6页
Engineering Mechanics
基金
国家支撑计划项目(2011BAJ06B04)
辽宁省科技计划项目(2012230005)
辽宁省博士启动基金项目(20111018)
沈阳市科技计划项目(F12-045-2-00)
关键词
CFRC
最佳掺量
裂缝
破坏形态
变形
carbon fiber reinforced concrete
optimal dosage
crack
failure mode
deformation
