Enhancing high-performance concrete sustainability: integration of waste tire rubber for innovation
Dhipan Aravind Singaravel, Pavalan Veerapandian, Silambarasan Rajendran, Ratchagaraja Dhairiyasamy
TL;DR
This study shows that adding waste tire rubber to concrete can improve its dynamic properties without much loss in strength when used in moderation.
Contribution
The study identifies an optimal threshold for tire rubber substitution in concrete that balances dynamic performance and structural integrity.
Findings
Replacing up to 10% of sand with 0.6 mm rubber particles minimally affects concrete strength.
Rubber incorporation improves concrete ductility and damping properties.
Strength reduction at 15% rubber replacement cannot be fully compensated by other measures.
Abstract
This study extensively explored the impact of integrating waste tire rubber into high-performance concrete (HPC) by substituting natural sand. Different fractions of rubber particles—5%, 10%, and 15% replacements of the fine aggregate—were rigorously investigated. Properties from fresh to hardened concrete were assessed, including compressive and tensile strength, modulus of elasticity, workability, and damping coefficient. Replacing up to 10% of sand with 0.6 mm rubber particles showed minimal strength compromise compared to standard HPC. However, at a 15% replacement rate, a noticeable decline in strength became evident, highlighting an optimal threshold for inclusion. Additionally, rubber incorporation notably enhanced concrete ductility and damping, marking a substantial improvement in dynamic properties. Efforts to offset strength reduction through increased fines content and…
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Taxonomy
TopicsInnovative concrete reinforcement materials · Concrete Properties and Behavior · Concrete and Cement Materials Research