Shear performance investigation of recycled concrete load-bearing blocks for sustainable masonry
International Journal of Structural Integrity
ISSN: 1757-9864
Article publication date: 4 September 2023
Issue publication date: 19 October 2023
Abstract
Purpose
Recycled concrete is an economical and environmentally friendly green material. The shear performance of recycled concrete load-bearing masonry is studied, which is great of significance for its promotion and application and also has great significance for the sustainable development of energy materials.
Design/methodology/approach
In total, 30 new load-bearing block masonry samples of self-insulating recycled concrete are subjected to pure shear tests, and 42 samples are tested subjected to shear-compression composite shear tests. According to the axial design compression ratio, the test is separated into seven working conditions (0.1–0.8).
Findings
According to the test results, the recommended formula for the average shear strength along the joint section of recycled concrete block masonry is given, which can be used as a reference for engineering design. The measured shear-compression correlation curves of recycled concrete block masonry are drawn, and the proposed limits of three shear-compression failure characteristics are given. The recommended formula for the average shear strength of masonry under the theory of shear-friction with variable friction coefficient is given, providing a valuable reference for the formulation of relevant specifications and practical engineering design.
Originality/value
Simulated elastoplastic analysis and finite element modeling on the specimens are performed to verify the test results.
Keywords
Acknowledgements
This study was funded by the National Science and Technology Support Plan of the 12th Five-Year Plan (No: 2011BAJ08B04).
Citation
Liang, S., Liu, W. and Chen, Z. (2023), "Shear performance investigation of recycled concrete load-bearing blocks for sustainable masonry", International Journal of Structural Integrity, Vol. 14 No. 5, pp. 755-778. https://doi.org/10.1108/IJSI-04-2023-0032
Publisher
:Emerald Publishing Limited
Copyright © 2023, Emerald Publishing Limited