Experimental Investigation on the Flexural Capacity of Reinforced Concrete Beams with Treated Wastewater and Recycled Concrete Aggregates-Reference-Cited by-同舟云学术

Experimental Investigation on the Flexural Capacity of Reinforced Concrete Beams with Treated Wastewater and Recycled Concrete Aggregates

Published:2023-02 Issue: Volume: Page:
ISSN:2958-3136
Container-title:The International Conference on Civil Infrastructure and Construction
language:
Short-container-title:

Author:

Abushanab Abdelrahman,Alnahhal Wael

Abstract

Eco-friendly concrete is the most recommended sustainable option to reduce the excessive diminution of concrete natural resources and the high generation of greenhouse gas emissions. Therefore, the present study explores the feasibility of employing treated wastewater (TWW), recycled concrete aggregates (RCA), and fly ash (FA) in concrete mixes. A total of 4 reinforced concrete (RC) beams were investigated under 4-point bending setup with three parameters investigated; namely, mixing water (fresh water and TWW), coarse aggregates (gabbro and RCA), and cementitious binders (cement and FA). The experimental results revealed that the beams' ductility was decreased by 9% and 16% with TWW and RCA, respectively. Moreover, the flexural performance of the TWW-RC beams was decreased by 14%, whereas RCA-RC beams showed comparable flexural strength to its counterpart with natural aggregates. In addition, the utilization of FA at a 20% replacement ratio enhanced the flexural strength by 5% to 7%.

Publisher

Qatar University Press

Reference16 articles.

1. 1. Abushanab, A. & Alnahhal, W. (2021). "Combined Effects of Treated Domestic Wastewater, Fly Ash, and Calcium Nitrite Toward Concrete Sustainability", Journal of Building Engineering, 44, 103240. https://doi.org/10.1016/j.jobe.2021.103240.

2. 2. ___. (2022a). "Characteristics of Concrete Made with Treated Domestic Wastewater", Proceedings of 2021 4th International Conference on Civil Engineering and Architecture, Thomas Kang and Youngjin Lee, Springer, Singapore, 231-35. https://doi.org/10.1007/978-981-16-6932-3_20.

3. 3. ___. (2022b). "Performance of Sustainable Concrete Incorporating Treated Domestic Wastewater, RCA, and Fly Ash", Construction and Building Materials, 329, 127118. https://doi.org/10.1016/j.conbuildmat.2022.127118.

4. 4. ___. (2022c). "Flexural Behavior of Reinforced Concrete Beams Prepared with Treated Wastewater, Recycled Concrete Aggregates, and Fly Ash", Structures, 45, 2067-79. https://doi.org/10.1016/j.istruc.2022.10.029.

5. 5. Abushanab et al. (2021). "Mechanical and Durability Properties of Ultra-High Performance Steel FRC Made with Discarded Materials", Journal of Building Engineering, 44, 103264. https://doi.org/10.1016/j.jobe.2021.103264.