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Recycled Rubber as an Aggregate Replacement in Self-Compacting Concrete-Literature Overview
Robert Bušić1, Ivana Miličević2, Tanja Kalman Šipoš3
1Faculty of Civil Engineering, University of Osijek, Vladimira Preloga 3, Osijek HR-31000, Croatia. rbusic@gfos.hr.
Materials (Basel, Switzerland)
|September 19, 2018
Summary
Recycling waste tires by incorporating rubber into self-compacting concrete offers an ecological solution to tire waste. While it may affect some mechanical properties, it enhances impact and fatigue resistance.
Area of Science:
- Civil Engineering
- Materials Science
- Environmental Science
Background:
- Growing global population leads to significant waste tire accumulation, posing environmental challenges.
- Waste tire rubber decomposition exceeds 50 years, necessitating sustainable disposal and recycling methods.
- Landfilling is a major ecological concern, driving the need for waste tire reuse.
Purpose of the Study:
- To review literature on using waste tire rubber as aggregate in self-compacting concrete.
- To analyze the impact of rubber aggregate on fresh and hardened concrete properties.
- To assess the potential of waste tire rubber in mitigating environmental waste problems.
Main Methods:
- Literature review of studies incorporating waste tire rubber in self-compacting concrete.
- Analysis of property changes (mechanical, fresh, hardened) due to aggregate replacement.
- Evaluation of environmental benefits of waste tire recycling in concrete.
Main Results:
- Partial replacement of natural aggregates with waste tire rubber reduces reliance on sand and gravel.
- Mechanical properties like compressive and flexural strength may be negatively affected.
- Improvements observed in impact resistance, ductility, and fatigue resistance.
Conclusions:
- Incorporating waste tire rubber into self-compacting concrete is a viable strategy for waste reduction.
- Careful consideration of aggregate replacement levels is needed to balance mechanical performance and environmental benefits.
- Further research can optimize the use of recycled tire rubber in construction materials.
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