玄武岩纤维增强再生混凝土的单轴受压试验研究 / Experimental Study on Uniaxial Compression of Basalt Fiber Reinforced Recycled Concrete
- Resource Type
- Academic Journal
- Authors
- 郭少龙; 陈为石; 鹿群; 李国栋; GUO Shaolong; CHEN Weishi; LU Qun; LI Guodong
- Source
- 天津城建大学学报 / Journal of Tianjin CHENGJIAN University. 29(6):385-390
- Subject
- 玄武岩纤维增强再生混凝土
抗压强度
弹性模量
峰值应变
BFRRC
compressive strength
elastic modulus
peak strain
- Language
- Chinese
- ISSN
- 2095-719X
通过立方体抗压试验分别研究了再生粗骨料取代率(RC)和玄武岩纤维体积掺量(RB)对玄武岩纤维增强再生混凝土(BFRRC)试块的抗压强度(fcu)、割线模量(Ec)的影响规律,并对BFRRC的峰值应变进行了分析.研究表明:RB对BFRRC试块的抗压强度起到先增大后减小的作用;Ec随着RC的增大呈现下降的趋势;Ec随着RB的增大呈现先增大后减小的趋势;峰值应变随着RC的增大呈现先增大后减小的趋势;玄武岩纤维的掺入能明显增大试件的峰值应变.本研究发现BFRRC的最佳RB在 0.05%~0.10%之间.
In this paper,the effects of recycled coarse aggregate replacement rate(RC)andbasaltfiberreplacementrate(RB)on the compressive strength(fcu)and secant modulus(Ec)of basalt fiber reinforced recycled concrete(BFRRC)specimens are studied through cube compressive test,and the peak strain of BFRRC is analyzed.The results show that RB first increases and then decreases the compressive strength of BFRRC test block.Ec shows a downward trend with the increase of RC.Ec increases first and then decreases with the increase of RB.The peak strain increases first and then decreases with the increase of RC.The addition of basalt fiber can significantly increase the peak strain of the specimen.It is found that the optimal RB of BFRRC is between 0.05%~0.10%.