Mechanical properties of self compacting concrete using different percentage of recycled aggregate

  • Unique Paper ID: 207317
  • Volume: 13
  • Issue: 3
  • PageNo: 348-357
  • Abstract:
  • This study examines if producing structural concrete with 100% recycled coarse aggregate is feasible without sacrificing the necessary strength performance. Natural aggregates were first used in the design and production of typical concrete mixes of classes M20, M25, M30, M35, and M40. Following a 28-day curing period, these concrete specimens were crushed to produce 10 mm and 20 mm recycled aggregates. The suitability of the recycled aggregates for the manufacture of structural concrete was next assessed using a battery of mechanical and physical tests. Three recycled aggregate concrete mixes—RAC20, RAC25, and RAC30—were created utilising water-to-cement ratios of 0.40, 0.40, and 0.38, respectively, based on trial mix optimisation. To reduce excessive water absorption while mixing, the recycled aggregates were conditioned to a Saturated Surface Dry (SSD) state before batching. After being cast and cured for 28 days, concrete specimens containing 100% RCA were evaluated for compressive strength. According to the experimental findings, the created mixes met the goal strength criteria with average compressive strengths of roughly 28 MPa, 34 MPa, and 38 MPa for RAC20, RAC25, and RAC30, respectively. Additionally, the Two-Stage Mixing Approach (TSMA) improved the concrete's strength and workability, decreased the negative impacts of RCA water absorption, and improved the quality of the interfacial transition zone

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{207317,
        author = {Mr. Mohammed Atharuddin and P. Anusha},
        title = {Mechanical properties of self compacting concrete using different percentage of recycled aggregate},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {3},
        pages = {348-357},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=207317},
        abstract = {This study examines if producing structural concrete with 100% recycled coarse aggregate is feasible without sacrificing the necessary strength performance. Natural aggregates were first used in the design and production of typical concrete mixes of classes M20, M25, M30, M35, and M40. Following a 28-day curing period, these concrete specimens were crushed to produce 10 mm and 20 mm recycled aggregates. The suitability of the recycled aggregates for the manufacture of structural concrete was next assessed using a battery of mechanical and physical tests. Three recycled aggregate concrete mixes—RAC20, RAC25, and RAC30—were created utilising water-to-cement ratios of 0.40, 0.40, and 0.38, respectively, based on trial mix optimisation. To reduce excessive water absorption while mixing, the recycled aggregates were conditioned to a Saturated Surface Dry (SSD) state before batching. After being cast and cured for 28 days, concrete specimens containing 100% RCA were evaluated for compressive strength. According to the experimental findings, the created mixes met the goal strength criteria with average compressive strengths of roughly 28 MPa, 34 MPa, and 38 MPa for RAC20, RAC25, and RAC30, respectively. Additionally, the Two-Stage Mixing Approach (TSMA) improved the concrete's strength and workability, decreased the negative impacts of RCA water absorption, and improved the quality of the interfacial transition zone},
        keywords = {},
        month = {August},
        }

Cite This Article

Atharuddin, M. M., & Anusha, P. (2026). Mechanical properties of self compacting concrete using different percentage of recycled aggregate. International Journal of Innovative Research in Technology (IJIRT), 13(3), 348–357.

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