Next Article in Journal
Study on the Coupling Coordination Degree and Driving Mechanism of “Production-Living-Ecological” Space in Ecologically Fragile Areas: A Case Study of the Turpan–Hami Basin
Next Article in Special Issue
The Use of Plastic Waste as Replacement of Coarse Aggregate in Concrete Industry
Previous Article in Journal
Measuring the Digital Maturity of Organisations in the People Care Sector
Previous Article in Special Issue
Principles for Incorporating Recycled Materials into Airport Pavement Construction for More Sustainable Airport Pavements
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Review

Examining the Influence of Recycled Aggregates on the Fresh and Mechanical Characteristics of High-Strength Concrete: A Comprehensive Review

1
Department of Civil Engineering, Coimbatore Institute of Technology, Coimbatore 641014, Tamil Nadu, India
2
Faculty of Engineering, Department of Civil Engineering, Zonguldak Bulent Ecevit University, Zonguldak 67100, Turkey
3
Civil Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
4
Faculty of Engineering, Department of Civil Engineering, Necmettin Erbakan University, Konya 42000, Turkey
5
Science and Technology Research and Application Center (BITAM), Necmettin Erbakan University, Konya 42000, Turkey
6
Department of Technical Sciences, Western Caspian University, Baku 1001, Azerbaijan
7
Department of Civil Engineering, Lebanese American University, Byblos P.O. Box 36, Lebanon
*
Authors to whom correspondence should be addressed.
Sustainability 2024, 16(20), 9052; https://doi.org/10.3390/su16209052
Submission received: 9 August 2024 / Revised: 16 September 2024 / Accepted: 24 September 2024 / Published: 19 October 2024
(This article belongs to the Special Issue Construction and Demolition Waste Management for a Sustainable Future)

Abstract

This review examines the impact of recycled aggregates (RAs) on the fresh and mechanical properties of high-strength concrete (HSC). The results revealed that incorporating RAs can reduce the compressive strength of HSC by up to 25%, with strength values ranging from 40 to 70 MPa depending on the RA content. The addition of supplementary materials like silica fume, fly ash, and polycarboxylate ether significantly mitigated these negative effects, enhancing the compressive strength by approximately 15–20% compared with the control mixes without additives. Furthermore, the tensile strength was observed to decrease by up to 18% with increasing RA content, but fiber reinforcement improved this by 10%, demonstrating the potential of additives to offset mechanical weaknesses. The modulus of elasticity also declined by up to 30% with higher RA dosages, highlighting the critical impact of the adhered mortar quality on the overall stiffness of the concrete. According to the literature, it was noticed that, when the dosage of RCAs is increased, there is a drop in the strength activity index (SAI). When the substitute dosage exceeded 50%, the SAI decreased. These findings underscore the importance of using optimized additive combinations to improve the mechanical performance of RA concrete, making it a viable option for sustainable construction. Overall, the findings suggest that, although RAs may negatively affect certain physical traits of HSC, the use of appropriate additives can optimize its performance, making it a viable option for sustainable construction practices.
Keywords: high-strength concrete; recycled aggregates; physical traits; additives; performance; strength activity index high-strength concrete; recycled aggregates; physical traits; additives; performance; strength activity index

Share and Cite

MDPI and ACS Style

Jagadesh, P.; Karthik, K.; Kalaivani, P.; Karalar, M.; Althaqafi, E.; Madenci, E.; Özkılıç, Y.O. Examining the Influence of Recycled Aggregates on the Fresh and Mechanical Characteristics of High-Strength Concrete: A Comprehensive Review. Sustainability 2024, 16, 9052. https://doi.org/10.3390/su16209052

AMA Style

Jagadesh P, Karthik K, Kalaivani P, Karalar M, Althaqafi E, Madenci E, Özkılıç YO. Examining the Influence of Recycled Aggregates on the Fresh and Mechanical Characteristics of High-Strength Concrete: A Comprehensive Review. Sustainability. 2024; 16(20):9052. https://doi.org/10.3390/su16209052

Chicago/Turabian Style

Jagadesh, P., K. Karthik, P. Kalaivani, Memduh Karalar, Essam Althaqafi, Emrah Madenci, and Yasin Onuralp Özkılıç. 2024. "Examining the Influence of Recycled Aggregates on the Fresh and Mechanical Characteristics of High-Strength Concrete: A Comprehensive Review" Sustainability 16, no. 20: 9052. https://doi.org/10.3390/su16209052

APA Style

Jagadesh, P., Karthik, K., Kalaivani, P., Karalar, M., Althaqafi, E., Madenci, E., & Özkılıç, Y. O. (2024). Examining the Influence of Recycled Aggregates on the Fresh and Mechanical Characteristics of High-Strength Concrete: A Comprehensive Review. Sustainability, 16(20), 9052. https://doi.org/10.3390/su16209052

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop