1. A review on density and strength of expanded polystyrene concrete.
- Author
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Jhansi, Chenna, Reddy, V. Mallikarjuna, and Reddy, R. Uttama
- Subjects
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CALCITE , *CONCRETE , *CONCRETE durability , *POLYSTYRENE , *COMPRESSIVE strength , *DENSITY , *SELF-healing materials - Abstract
In this study the recycled coarse aggregate (RCA) obtained from a single source was used and the compressive strength was found to be 25 MPa before demolition. Raw recycled coarse aggregate is hand-picked from the demolished concrete rubble. Recycled coarse aggregate has old cement mortar attached to its surface so when reused in concrete, this loose old cement mortar is removed from the surface making the concrete perform poor in strength and durability. So before using in concrete, recycled coarse aggregate is being treated in various ways to enhance its strength and durability properties in concrete. In the current study, various pre-treatments methods such as Mechanical treatment (Autogenous cleaning), Thermal - mechanical method, Pre-soaking in water (Pre-Saturation), Pre-soaking in acid, Two-stage mixing approach (TSMA), Three step method, Self-healing method, Mineral admixture solution, Polymer emulsion, Microbially induced calcite precipitation and Carbonation are tested for their suitability and few recommendations are made. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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