Recycled Concrete Aggregate Classification Based on Quality Parameters and Performance

Experimental and Analytical Performance of Recycled Aggregates Produced by Customized Chemical-Mechanical Treatment

“…The lower abrasion values of AmRA indicate better mortar removal and compaction of residual mortar. Along with the other physical characteristics and mechanical properties, AmRA abrasion values indicate their HQ (high-quality) class (Kumar and Singh 2023a).…”

“…According to Kim (2022), Kumar et al (2023), and Kumar and Singh (2023a), bulk density and water absorption of aggregate critically influence concrete's strength. The bulk density of AmRA is approximately identical to that of NA, with a deviation of less than 3 percent.…”

“…In recycled aggregate concrete (RAC), the quality of recycled aggregate (RCA) affects its material properties (Shaban et al 2019;Kim 2022; Kumar andSingh 2023a). RCA performance varies with its quality, and increased replacement levels in the concrete (Martin-Morales et al 2011; Duan and Poon 2014; Amer et al 2016.…”

“…High water absorption of RCA may also alter the effective water-cement ratio in the concrete mix (Kurda et al 2017; Princigallo 2018; Dilbas et al 2019; Troian et al 2011. In a recent study by Kumar and Singh (2023a), the RCA is classified according to its quality and performance. As shown by this study, fixing RCA quality based on some of its physical or mechanical properties may result in unsatisfactory concrete mix properties.…”