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Published: Građevinar 75 (2023) 1
Paper type: Scientific research paper
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Study of basic mechanical properties of recycled concrete with various recycled coarse aggregate mixes

Kai Wu, Feng Chen, Chuyang Chen, Shiqi Lin, Yang Nan

Abstract

Three kinds of recycled aggregate concretes (RACs), with six different replacement rates at four ages, are subjected to the standard cube axial compression test to study mechanical properties. Failure modes, compressive strength, stress-strain curves, peak strain, and elastic modulus of RACs are systematically analysed. In addition, three equations are proposed for RACs to describe the relationship between the compressive strength and replacement rate. Comparison between various equations of elastic modulus and test results is presented, and then three most suitable equations are established for three kinds of RACs, including necessary modifications, especially for RAC with mixed recycled aggregates.

Keywords
waste brick, mixed recycle aggregates, compressive strength, elastic modulus, mechanical properties

HOW TO CITE THIS ARTICLE:

Wu, K., Chen, F., Chen, C., Lin, S., Nan, Y.: Study of basic mechanical properties of recycled concrete with various recycled coarse aggregate mixes, GRAĐEVINAR, 75 (2023) 1, pp. 1-12, doi: https://doi.org/10.14256/JCE.2244.2017

OR:

Wu, K., Chen, F., Chen, C., Lin, S., Nan, Y. (2023). Study of basic mechanical properties of recycled concrete with various recycled coarse aggregate mixes, GRAĐEVINAR, 75 (1), 1-12, doi: https://doi.org/10.14256/JCE.2244.2017

LICENCE:

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This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
Autor 2244 1 WEB
Kai Wu
Hohai University, Nanjing, China
College of Civil and Transportation Engineering
Autor 2244 2 WEB
Feng Chen
Hohai University, Nanjing, China
College of Civil and Transportation Engineering
Autor 2244 3 WEB
Chuyang Chen
University of California, Berkeley, USA
Department of Civil and Environmental Engineering
Autor 2244 4 WEB
Shiqi Lin
Hohai University, Nanjing, China
College of Civil and Transportation Engineering
Autor 2244 5 WEB
Yang Nan
Hohai University, Nanjing, China
College of Civil and Transportation Engineering