Evaluating The Performance of Acid-Treated (Hcl-Hno3) Recycled Aggregate in Environmentally Friendly Concrete

DR. G. Madhavarao; T.V. Dheeraz Sai; T. Ramya; T. Mahesh; M. Divya; B. Vasu Babu

doi:10.55524/ijirem.2023.10.2.18

Abstract

Its poor quality was one of the key problems preventing recycled course aggregate (RCA) from being used in concrete mixes. The quality of recycled aggregate may be impacted by cement mortar on the surface of the material. The examination of recycled aggregate in various test results employing acid soaking treatment procedures utilizing hydrochloride acid and nitric acid is the subject of this research. Natural aggregate, recycled aggregate, recycled aggregate with HCL and recycled aggregate with HNO3 are the four types of concrete mixtures that are made. Using these cleaned recycled aggregates in concrete has been proven to be beneficial. The strength and durability of concrete were also evaluated, and aggregate attributes were computed. The test findings showed. The behavior of recycled aggregate has changed according to the test results after being treated with acid. Out of these two acids, nitric acid treatment of recycled aggregates produced the best results, followed by hydrochloric acid doing only marginally better. According to the overall research, employing treated recycled aggregate in concrete can significantly increase the strength and durability properties of concrete made using recycled aggregate.

Keywords

Recycled, Brobdingnag Ian.

References

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18.62% compared to RCA and hydrochloric acid improved after 28 days curing.
In Flexural strength test performance of nitric acid treated recycled aggregates improved 16.64% compared to RCA and hydrochloric acid is 11.24%improved after 28 days curing.
Out of this two acids first recycled aggregates treated with nitric acid has given best results and second hydrochloric acid has given the better

results.

From overall study by using acid treatment The strength and durability characteristics of concrete by recycled aggregate can be improved in good
way Hence this method can be considered and employed in the application on large scale RAC projects

Cites this article as

D. G. Madhavarao, T. D. Sai, T. Ramya, T. Mahesh, M. Divya, B. V. Babu, "Evaluating The Performance of Acid-Treated (Hcl-Hno3) Recycled Aggregate in Environmentally Friendly Concrete", International Journal of Innovative Research in Engineering & Management (IJIREM), Vol-10, Issue-2, Page No-99-102, 2023. Available from: https://doi.org/10.55524/ijirem.2023.10.2.18

Corresponding Author

DR. G. Madhavarao

Professor Department of Civil Engineering, Pace institute of technology & sciences(A), Valluru, Prakasam, Andhra Pradesh, India.

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Evaluating The Performance of Acid-Treated (Hcl-Hno3) Recycled Aggregate in Environmentally Friendly Concrete

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