Effect of Treated/Untreated Recycled Aggregate Concrete: Structural Behavior of RC Beams

Ayman Abdo, Ayman El-Zohairy (), Yasser Alashker, Mohamed Abd El-Aziz Badran and Sayed Ahmed
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Ayman Abdo: Structural Engineering Department, Zagazig University, Zagazig 44519, Egypt
Ayman El-Zohairy: Department of Engineering and Technology, Texas A&M University-Commerce, Commerce, TX 75429, USA
Yasser Alashker: Department of Civil Engineering, College of Engineering, King Khalid University, P.O. Box 394, Abha 61411, Saudi Arabia
Mohamed Abd El-Aziz Badran: Structural Engineering Department, Zagazig University, Zagazig 44519, Egypt
Sayed Ahmed: Structural Engineering Department, Zagazig University, Zagazig 44519, Egypt

Sustainability, 2024, vol. 16, issue 10, 1-28

Abstract: Using recycled concrete aggregates from construction and demolition wastes on structural concrete is a sustainable solution to reduce the consumption of natural resources and the detrimental effects of concrete production on the environment. This paper has collected much data from the literature to study fresh, mechanical properties and durability of concrete made of treated/untreated recycled aggregate (RA). Furthermore, the flexural and shear behavior of recycled aggregate concrete (RAC) beams was studied. This study discussed the distinctions and similarities between reinforced RAC beams and reinforced natural aggregate concrete (NAC) beams. The results of this review’s analysis clearly show that reinforced RAC beams with different RAC ratios perform structurally on par with or slightly worse than reinforced NAC beams, demonstrating the viability of RAC for structural applications. Emphasis is placed on carefully choosing and adjusting material models for recycled aggregate concrete. Ultimately, guidelines for future inquiries in this field are delineated and deliberated upon. The review will be advantageous for academics and professionals who aim to acquire a comprehensive comprehension of the behavior of RAC beams. It addresses several practical concerns connected to the numerical modeling of these components, which have not been adequately covered in existing literature.

Keywords: recycled aggregate concrete (RAC); mechanical properties; durability; reinforced concrete beams; structural behavior (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:16:y:2024:i:10:p:4039-:d:1392862

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