Use of Recycled Aggregate and Fly Ash in Concrete Pavement
- 1 North Carolina A and T State University, United States
Abstract
Problem statement: Recycled materials aggregate from the demolished concrete structures and fly ash from burning coal shows the possible application as structural and non structural components in concrete structures. This research aims to evaluate the feasibility of using concrete containing recycled concrete aggregate and fly ash in concrete pavement. Approach: Two water cement ratio (0.45 and 0.55) the compressive strength, modulus of electricity and flexural strength for concrete with recycled aggregate and fly ash with 0, 25% replacing cement in mass were considered. Results: The material properties of recycled aggregate concrete with fly ash indicate comparable results with that of concrete with natural aggregate and without fly ash. Conclusion/Recommendations: The recycled materials could be used in concrete pavement and it will promote the sustainability of concrete.
DOI: https://doi.org/10.3844/ajeassp.2011.201.208
Copyright: © 2011 Myle Nguyen James, Wonchang Choi and Taher Abu-Lebdeh. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Recycled aggregate
- fly ash
- compressive strength
- elastic modulus
- concrete pavement
- recycled materials
- flexural strength
- concrete structures
- reinforced concrete