ItemArticle

Interface improvement and multiscale assessment of recycled concrete aggregates with epoxy resin polymer

Title
Interface improvement and multiscale assessment of recycled concrete aggregates with epoxy resin polymer
Creator
Rajprasad, J.; Arunvivek, G.K.; Kumar, Pramod; Santhosh, Govindaraju; Gogineni, Abhilash; Sembeta, Regasa Yadeta
Description
Recycled concrete aggregate (RCA) exhibits challenges like weak bonding, high porosity, and inferior strength compared to natural aggregates. This study evaluates the effect of epoxy resin polymer treatment on RCA on enhancing compressive and split tensile strengths in concrete, replacing natural aggregates with untreated RCA (UTRAC) and treated RCA (ERTAC) at 25%, 50%, 75%, and 100% levels. The tests were conducted at 3, 7, and 28 days. UTRAC showed reductions of up to 26.32% in compressive strength and 35.38% in tensile strength at 100% replacement; ERTAC outperformed control concrete (CC) with gains of up to 26.32% in compressive strength (at 25%) and 122.73% in tensile strength (at 100%), identifying 25% as the optimum replacement ratio. SEM and XRD analyses confirmed improved particle packing, reduced porosity, and stronger interfacial transition zones (ITZ) in ERTAC. The Author(s) 2026.
Source
Scientific Reports;Volume;16;Issue;1;Article No.;3697;
Date
01-01-2026
Publisher
Nature Research
Subject
Epoxy resin polymer; Mechanical properties; Micro-structural analysis; Recycled aggregate
Coverage
Rajprasad J., Department of Civil Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India; Arunvivek G.K., Department of Civil Engineering, Mohan Babu University, Tirupati, 517102, India; Kumar P., Department of Civil Engineering, Graphic Era (Deemed to Be University), Uttarakhand, Dehradun, India; Santhosh G., Department of Sciences and Humanities, Christ University, Karnataka, Bengaluru, India; Gogineni A., Department of Climate Change, Indian Institute of Science, Karnataka, Bengaluru, 560012, India; Sembeta R.Y., Department of Civil Engineering, College of Engineering and Technology, Mattu University, Metu, 318, Ethiopia
Rights
All Open Access; Gold Open Access; Green Open Access
Relation
ISSN: 20452322;
Format
online
Language
English
Type
Article

Citation

Rajprasad, J.; Arunvivek, G.K.; Kumar, Pramod; Santhosh, Govindaraju; Gogineni, Abhilash; Sembeta, Regasa Yadeta, “Interface improvement and multiscale assessment of recycled concrete aggregates with epoxy resin polymer,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22534.

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