Author(s): Kowshika VR, Vijaya Bhaskaran and Darshan G

Abstract: The returned fresh concrete, hardened leftovers, slurry trash, recovered aggregates, and high-alkaline wash-out water are among the substantial amounts of waste produced by the ready-mixed concrete (RMC) business. Because of their hazardous qualities and growing disposal costs, these wastes provide both economic and environmental difficulties. Reusing under-designed concrete, adding partially hydrated cementitious materials, recycling hardened concrete into recycled concrete aggregates (RCA), and reclaiming aggregates and water through wash-out systems are some of the sustainable methods for managing and using RMC processing wastes that are examined in this review. Reduced mechanical performance, decreased workability, high variability, extra admixture requirements, and strict quality-control requirements restrict the practical adoption of these technologies, despite the fact that they promote resource conservation and lessen environmental responsibilities. The study emphasizes the need for comprehensive, plant-specific waste management frameworks that are backed by cooperation between precast manufacturers and RMC producers. To move the RMC industry toward a more sustainable and circular future, it is imperative to develop recycling technology and set clear norms.

DOI: 10.22271/27078264.2025.v6.i2b.101

Pages: 86-91 | Views: 10 | Downloads: 3

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