Experimental Study of the Recycled Aggregate Concrete Beam Flexural Performance

Abstract:

Using the same water to binder ratio and the same ratio of reinforcement, the three recycled aggregate concrete are made in different replacement ratio of recycled coarse aggregate which is 0%, 30%, 75% and 100%. Through experimental the beams flexural performance is researched, the right sections bearing deformation performance and damage distinction. The result shows that the damage model and the damage process are basically the same; the right sections mean strain is uniform to plane section assumption. With the increase in the replacement ratio of recycled coarse aggregate, the value of recycled concrete beams cracking moment, yielding bend moment and ultimate moment are all decreasing, the deflection and the maximum crack depth is increasing and the maximum crack depth is decreasing. The experimental and theoretical analysis shows that the existing norms formula is accurately applied in calculating the recycled concrete beams ultimate moment, and the formula is need to be amendment when calculating the cracking moment.

• Periodical: Applied Mechanics and Materials (Volumes 368-370)
• Pages: 1074-1079
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.368-370.1074
• Online since: August 2013
• Authors: Shu Li Zhao, Chao Sun
• Keywords: Beam, Flexural Performance, Recycled Aggregate (RA)

References

[1] XIAO Jian-zhuang, LI Jia-bin, LAN Yang, Research on recycled aggregate concrete-A review[J]. Concrete, 2003, 26 (10) : 17-20.

[2] policy, Ye Yuezhong. Recycled coarse aggregate reinforced concrete beam test study [J] the engineering structures . 2008. 28 (3).

[3] CAO Wanlin, DONG Hongying, ZHANG Jianwei, XU Fangfang, LI Donghua ，Experimental Study on Working Performance of Recycled Concrete Structures.

[4] ZHOU Jinghai, ZHANG Wei, LIU Aixia3，Bend Performances of Recycled Coarse Aggregate Concrete Beam[J]   Journal of Shenyang Jianzhu University(Natural Science) 2008. 05.

[5] National Standard of the People's Republic of China. Code for design of concrete structures (GB50010-2002). Beijing: China architecture & building press, (2010).