Investigation on Fresh Properties of Concrete Made with Recycled Lightweight Aggregates from Demolished Bricks

Authors: Bayan Salim Al-Numan¹ & Razhan Shahab Ahmed^2
1Department of Civil Engineering, Faculty of Engineering, Tishk International University, Erbil, Iraq
²Department of Civil Engineering, Faculty of Engineering, Tishk International University, Erbil, Iraq

Abstract:Nowadays, research on the usability of recycled aggregate (RA) in concrete is gaining popularity in all over the world due to the preservation of the environment and sustainable development. RA can be obtained after crushing and screening of the construction rubble obtained from demolished structures. In this work, comparative analysis of the experimental results of the properties of fresh concrete with different replacement ratios of natural with recycled lightweight brick aggregate (RBA) is presented. It is found that the workability decrease as the RBA percentage increases, but it was improved by adding superplasticizer. The density of RBA concrete was decreased 13% maximum.

Keywords: Recycled Lightweight Aggregate, Recycled Brick Aggregate, Concrete Fresh Properties

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doi: 10.23918/eajse.v5i1p48

References

De Venny, A. S., & Khalaf, F.M. (1999). The use of crushed brick as coarse aggregate in concrete. Masonry International, 12(3), 81-84. doi: 10.1002/ep.11880

Rao, A., Jha, K. N., & Misra, S. (2007). Use of aggregates from recycled construction and demolition waste in concrete. Resources, Conservation and Recycling, 50(1), 71-81.

Sagoe-Crentsil, K. K., Brown, T., & Taylor, A. H. (2001). Performance of concrete made with commercially produced coarse recycled concrete aggregate. Cement and Concrete Research, 31(5), 707-712. doi: 10.1016/S0008-8846(00)00476-2

Yang, J., Du, Q., & Bao, Y. (2011). Concrete with recycled concrete aggregate and crushed clay bricks. Constr. Build. Mater. 25(4), 1935-1945. doi: 10.1016/j.conbuildmat.2010.11.063.

Zhang, S., & Zong, L. (2013). Properties of concrete made with recycled coarse aggregate from waste brick. Environmental Progress & Sustainable Energy, 33(4), 1283-1389.