Influence of Replacement Rate on Triaxial Mechanical Performance of Recycled Concrete

Abstract:

Replacement rate is an important factor that affects the mechanical properties of recycled concrete. In order to study the influence of replacement rate on triaxial mechanical performance of recycled concrete, 20 recycled concrete cylinder specimens for conventional triaxial loading test with recycled aggregate replacement rate as changing parameters were designed. The results show that replacement rate has a great influence on peak stress of recycled concrete specimens under uniaxial stress, but the effects of replacement rate gradually decreased with the increase of lateral confining pressure. The influence of replacement rate on peak strain is larger than peak stress, the impact of replacement rate on peak strain gradually decreased with the increase of lateral confining pressure. The elastic modulus of recycled concrete specimens changes with different replacement rate, and the fluctuations is in the range of 20%. The results will provide reference for further theoretical study of recycled concrete.

• Periodical: Applied Mechanics and Materials (Volumes 584-586)
• Pages: 1531-1535
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.584-586.1531
• Online since: July 2014
• Authors: Yi Sheng Su*, Er Cong Meng, Zong Ping Chen, Jun Yu Wu
• Keywords: Experimental Study, Recycled Concrete, Replacement Rate, Triaxial

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