Abstract
Recycled Concrete Aggregates (RCA) are replaced with natural aggregates in pavement bases in the present study. The blended mixes are stabilized with cement at 2, 4, and 6% of the dry weight of aggregates. The compaction characteristics, Indirect Tensile Strength (ITS), Unconfined Compressive Strength (UCS), durability, and Resilient Modulus (MR) were evaluated. The results show that with the increase in the proportion of RCA, no proper trend is observed in the OMC due to the gradation differences and heterogeneity of the RCA. Further, there is a decline in the engineering properties with RCA percentage. In spite, their mechanical properties were improved with cement stabilization. The maximum ITS and UCS are found at 50% RCA. There is no significant difference found in the modulus values of RCA blends. However, the modulus values from the empirical equations are near to the specifications. Further, a relationship was established between UCS and MR. Overall, the stabilized bases of RCA blends can be used as bases and sub-bases.
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Acknowledgements
We wish to place on record our heartfelt gratitude and indebtedness to the Department of Science and Technology (DST), Government of India, for sponsoring this prestigious research project entitled “Performance Evaluation of Emulsified Asphalt Treated Bases and Cement Treated Bases” carried out at the National Institute of Technology Warangal, Telangana, India.
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Chakravarthi, S., Devendra Vara Prasad, M., Shankar, S. (2023). Performance Evaluation of Cement-Treated Recycled Concrete Aggregate Bases. In: Anjaneyulu, M.V.L.R., Harikrishna, M., Arkatkar, S.S., Veeraragavan, A. (eds) Recent Advances in Transportation Systems Engineering and Management. Lecture Notes in Civil Engineering, vol 261. Springer, Singapore. https://doi.org/10.1007/978-981-19-2273-2_32
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DOI: https://doi.org/10.1007/978-981-19-2273-2_32
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