A COMPREHENSIVE REVIEW OF THE FLEXURAL BEHAVIOR OF CONCRETE BEAMS CONTAINING RECYCLED COARSE AGGREGATE
Keywords:
Recycled coarse aggregate, concrete beams, flexural behavior, mechanical properties, durability, sustainabilityAbstract
The utilization of recycled coarse aggregate (RCA) in concrete has gained significant attention in recent years due to its potential to reduce environmental impact and promote sustainable construction practices. This review paper provides a comprehensive analysis of various aspects related to the flexural behavior of concrete beams containing RCA. The paper begins with an introduction to the concept of RCA and its importance in sustainable construction. It then discusses the characteristics of RCA, including its particle size distribution, water absorption characteristics, and mechanical properties.The review paper also examines the mechanical properties of recycled aggregate concrete (RAC), such as compressive strength, tensile strength, and modulus of elasticity, as well as its durability properties, including resistance to chloride ion penetration, sulfate attack, and carbonation. Furthermore, the paper explores enhancement techniques for improving the properties of RAC, such as the use of supplementary cementitious materials and surface modification agents. Additionally, the review paper discusses the recycling process of demolished concrete waste, the properties of recycled aggregate from demolished concrete waste, and its applications in various concrete mixtures. It also analyzes the effects of recycled aggregate on fresh and hardened concrete properties and discusses the challenges and limitations of using RCA in concrete beams.Overall, this review paper provides valuable insights into the flexural behavior of concrete beams containing RCA and highlights the importance of sustainable construction practices in the concrete industry.
