[1]谢志红,黄培彦,张剑洪,等.橡胶钢纤维再生骨料混凝土断裂性能试验研究[J].深圳大学学报理工版,2014,31(5):521-528.[doi:10.3724/SP.J.1249.2014.05521]
　Xie Zhihong,Huang Peiyan,Zhang Jianhong,et al.Experimental study on the fracture behavior of steel fiber and crumb rubber reinforced recycled aggregate concrete[J].Journal of Shenzhen University Science and Engineering,2014,31(5):521-528.[doi:10.3724/SP.J.1249.2014.05521]
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橡胶钢纤维再生骨料混凝土断裂性能试验研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第31卷
期数:
2014年第5期
页码:
521-528
栏目:
土木建筑工程
出版日期:
2014-09-20

文章信息/Info

Title:
Experimental study on the fracture behavior of steel fiber and crumb rubber reinforced recycled aggregate concrete
文章编号:
201405012
作者:
谢志红1; 黄培彦2;  张剑洪3;  谢建和3;  郭永昌3;  岑羽乔3
1）广州航海学院航务工程系, 广州 510725
2）华南理工大学土木与交通学院，广州 510640
3）广东工业大学土木与交通工程学院，广州 510006
Author(s):
Xie Zhihong1;  Huang Peiyan2;  Zhang Jianhong3;  Xie Jianhe3;  Guo Yongchang3;  and Cen Yuqiao3
1) Department of Harbor Engineering, Guangzhou Maritime Institute, Guangzhou 510725, P.R.China
2) School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, P.R.China
3) Faculty of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, P.R.China
关键词:
固体力学;  橡胶; 再生骨料; 断裂性能; 钢纤维; 混凝土; 环保建筑材料
Keywords:
solid mechanics;  crumb rubber;  recycled aggregate;  fracture properties;  steel fiber;  concrete;  green building materials
分类号:
O 346.1+1; TU 375.1
DOI:
10.3724/SP.J.1249.2014.05521
文献标志码:
A
摘要:
以橡胶钢纤维再生骨料混凝土（crumb rubber and steel fiber reinforced recycled aggregate concrete，RSRAC）为研究对象，探讨橡胶掺量对其断裂性能的影响. 设计了6组试件，包括5组不同配合比的RSRAC（橡胶体积分数分别为0、4%、8%、12%和16%）和1组不含橡胶的钢纤维原生骨料混凝土试件，每组含3个尺寸为100 mm×100 mm×515 mm带切口的小梁试件. 基于三点弯曲断裂试验，得到了RSRAC的荷载-挠度曲线和荷载-裂缝张开位移曲线，通过计算RSRAC的断裂能和断裂韧度，分析了RSRAC断裂能和断裂韧度随橡胶掺量的变化规律. 结果表明，RSRAC断裂能和断裂韧度随橡胶颗粒掺量的增加呈先增后减趋势，细骨料体积取代率为8%时，橡胶掺量可使RSRAC材料获得较好的断裂性能.
Abstract:
This paper addresses the fracture behavior of crumb rubber and steel fiber reinforced recycled aggregate concrete (RSRAC). An experimental study was conducted on the effects of rubber content on the fracture behaviors of RSRAC. 6 specimens of 150 mm×150 mm×515 mm were cast, including five RSRAC groups with different ratio of rubber content (rubber content being respectively 0, 4%, 8%, 12% and 16% by volume substitution of sand) and one group nature aggregate concrete (NAC) without rubber. Each group contained three specimens. Based on a three-point bending test, the curves of load-deflection and load-crack mouth opening displacement were obtained, and both the fracture toughness and fracture energy were calculated. The results indicate that both the fracture toughness and fracture energy firstly increases and then decreases with the increase of the rubber content, and the rubber content is recommended to be 8% to provide the better fracture behavior for RSRAC.

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备注/Memo

备注/Memo:
Received：2014-04-27；Accepted：2014-08-02
Foundation：National Natural Science Foundation of China(51278132); Science and Technology Planning Project of Guangdong Province(2011B010400024)
Corresponding author：Professor Huang Peiyan．E-mail: pyhuang@scut.edu.cn
Citation：Xie Zhihong, Huang Peiyan, Zhang Jianhong, et al. Experimental study on the fracture behavior of steel fiber and crumb rubber reinforced recycled aggregate concrete［J］. Journal of Shenzhen University Science and Engineering, 2014, 31(5): 521-528.（in Chinese）
基金项目：国家自然科学基金资助项目（51278132）；广东省科技攻关资助项目（2011B010400024）
作者简介：谢志红（1978—），女（汉族），广州航海学院副教授、博士. E-mail: hz.xzh@163.com
引文：谢志红，黄培彦, 张剑洪, 等. 橡胶钢纤维再生骨料混凝土断裂性能试验研究［J］. 深圳大学学报理工版，2014，31（5）：521-528.
更新日期/Last Update: 2014-09-11