Experimental study on dynamic direct tensile of recycled aggregate concrete

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (9) : 43-51.

TENG Xiao1 LU Yu-bin1 CHEN Xing1 YU Shui-sheng2 JIANG Xi-quan3

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Abstract

To study the direct tensile properties and fracture patterns of recycled aggregate concrete (RAC) with various replacement percentage (i.e. 0%, 25%, 50%, 75% and 100%) of recycled coarse aggregates, the dynamic direct tensile tests of RAC in the strain-rate range of 100-102 s-1 were carried out using large diameter (75 mm) split Hopkinson tensile bar (SHTB). Test results show that the tensile strength of RAC increases with the increase of the average strain-rate, and the average strain-rate affects the damage form of RAC, which indicate that the RAC has obvious rate sensitivity. Under the same water cement ratio, the quasi-static and dynamic tensile strength of RAC is 1.3%~15.9% and 1.7%~29% lower than that of ordinary concrete, respectively. This study offers theoretical basis for the engineering application of RAC.

Key words

recycled aggregate concrete / recycled coarse aggregates / replacement percentage / dynamic derect tensile / SHTB

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TENG Xiao1 LU Yu-bin1 CHEN Xing1 YU Shui-sheng2 JIANG Xi-quan3. Experimental study on dynamic direct tensile of recycled aggregate concrete[J]. Journal of Vibration and Shock, 2016, 35(9): 43-51

References

[1] 肖建庄，李佳彬，兰阳. 再生混凝土技术最新研究进展与评述[J]. 混凝土，2003, 25(10): 17-20.
XIAO Jian-zhuang, LI Jia-bin, LAN Yang. Research on recycled aggregate concrete-a review [J]. Concrete, 2003, 25(10): 17-20.
[2] 邢振贤，周曰农. 再生混凝土的基本性能研究[J]. 华北水利水电学院学报，1998, 19(2): 30-32.
XING Zhen-xian, ZHOU Yue-nong. Study on the main performance of regenerated concrete [J]. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 1998, 19(2): 30-32.
[3] Mehta P K. 混凝土的结构性能与材料[M]. 祝永年等译. 上海：同济大学出版社，1991.
Mehta P K. Structure, property and materal in concrete [M]. Translated by ZHU Yong-nian, et al. Shanghai: Tongji University Press, 1991.
[4] Bischoff P H, Perry S H. Compressive behaviour of concrete at high strain rates [J]. Materials and Structures, 1991, 24(144):425-450.
[5] Joseph W, Tedsco C, Allen Ross, Steven T, Kuennen. Experimental and numerical analysis of high strain rate splitting tensile tests [J]. ACI Materials Journal, 1993, 90(2): 162-169.
[6] Klepaczko J R, Brara A. An experimental method for dynamic tensile testing of concrete by spalling [J]. International Journal of Impact Engineering, 2001, 25: 387-409.
[7] Choi S J, Yang K H, Sim J I, et al. Direct tensile strength of lightweight concrete with different specimen depths and aggregate sizes [J]. Construction and Building Materials, 2014, 63: 132-141.
[8] Yan D, Lin G. Dynamic properties of concrete in direct tension [J]. Cement and concrete research, 2006, 36(7): 1371-1378.
[9] 卢玉斌，陈兴，滕骁等. 再生混凝土准静态压缩力学性能试验[J]. 西南科技大学学报，2013, 28(1): 43-48.
LU Yu-bin, CHENG Xing, TENG Xiao. Experimental study on quasi-static compressive mechanical performance of recycling concrete [J]. Journal of Southwest University of Science and Technology, 2013, 28(1): 43-48.
[10] 张凯，陈荣刚，张威等. 混凝土动态直接拉伸实验技术研究[J]. 实验力学，2014, 29(1): 89-96.
ZHANG Kai, CHENG Rong-gang, ZHANG Wei, et al. Study of experimental technique for concrete dynamic direct tension [J]. Journal of Experimental Mechanics, 2014, 29(1): 89-96.
[11] 宋力，胡适胜. SHPB数据处理中的二波法与三波法[J]. 爆炸与冲击，2005, 25(4): 368-373.
SONG Li, HU Shi-sheng, Two-wave and three-wave method in SHPB data processing [J]. Explosin and Shock Waves, 2005, 25(4): 368-373.
[12] 周风华，王礼立，胡时胜. 高聚物SHPB实验中试件早期应力不均匀性的影响 [J]. 实验力学，1992, 7: 23-29.
Zhou Feng-hua, WANG Li-li, HU Shi-sheng. On the effect of stress nonuniformness in polymer specimen of SHPB test [J]. Journal of Experimental Mechanics, 1992, 7: 23-29.
[13] LU Yu-bin, LI Qing-ming. Appraisal of pulse-shaping technique in split Hopkinson pressure bar tests for brittle materials [J]. International Journal of Protective Structures, 2010, 1(3): 363-390.
[14] Jau W C, Fu C W, Yang C T. Study of feasibility and mechanical properties for producing high-flowing concrete with recycled coarse aggregate [C]. International workshop on sustainable development and concrete and concrete technology. Beijing. 2004:89-102.
[15] Kou S C, Poon C S, Chan D, Properties of steam cured recycled aggregate fly ash concrete [C]. International RILEM conference on the use of recycled materials in buildings and structures, Barcelona. 2004:590-599.
[16] 肖建庄，兰阳. 再生混凝土单轴受拉性能试验研究 [J]. 建筑材料学报，2006, 9（2）: 154-158.
XIAO Jian-zhuang1, LAN Yang. Investigation on the tensile behavior of recycled aggregate concrete [J]. Journal of Building Materials, 2006, 9(2): 154-158.
[17] 张波志，王社良等. 再生混凝土基本力学性能试验研究 [J]. 混凝土，2011, 7: 4-6.
ZHANG Zhi-bo, WANG She-liang, et al. Experimental analysis of the basic mechanical properties of recycled concrete [J]. Concrete, 2011, 7: 4-6.
[18] 肖诗云，林皋，王哲等. 应变率对混凝土抗拉特性影响 [J].大连理工大学学报，2001, 41(6): 721-725.
XIAO Shi-yun, LIN Gao, WANG Zhe, et al. Effects of strain rate on dynamic behavior of concrete in tension [J]. Journal of Dalian University of Technology, 2001, 41(6): 721-725.
[19] 卢玉斌，武海军，赵隆茂. 混凝土类材料动态拉伸强度的微观力学模型 [J]. 爆炸与冲击，2013, 33(3): 275-281.
LU Yu-bin, WU Hai-jun, ZHAO Long-mao. A micro- mechanical model for dynamic tensile strength of concrete-like materials [J]. Explosin and Shock Waves, 2013, 33(3): 275-281.