Journal article
Evaluation of volumetric performance of asphalt mixtures containing recycled construction aggregate (RCA)
International Journal of Pavement Engineering, Vol.23(7), pp.2191-2205
2022
Abstract
High rate of construction and demolition waste materials results in a large amount of stockpiled waste materials. Pavement industry is now considering a sustainable approach for asphalt mixture design incorporating certain waste materials. This research investigates the feasibility of substitution of virgin aggregates in asphalt mixes with recycled construction aggregates (RCA) obtained from the construction and demolition sector. A preliminary experimental study including determination of flakiness index, particle shape, wet/dry strength variation, water absorption rate, particle density, crushing value, deleterious material and weak particles was conducted on blends of RCA and virgin aggregates to evaluate the engineering properties of aggregate blends. Different asphalt mixes incorporating RCA at different rates were prepared and evaluated using a gyratory compaction. The results of the regression analysis showed that the asphalt mixtures containing 20% to 22% RCA provide comparable volumetric properties as the control sample, while mixes with higher RCA substitutions achieved higher air voids, and lower voids in the mineral aggregate (VMA), voids filled with asphalt (VFA) and binder film index (BFI). The results of this study suggested a feasible use of RCA for partial aggregate replacement in hot mix asphalt (HMA).
Details
- Title
- Evaluation of volumetric performance of asphalt mixtures containing recycled construction aggregate (RCA)
- Authors
- Farzaneh Tahmoorian (Author) - Central Queensland UniversityBijan Samali (Author) - Western Sydney UniversityJohn Yeaman (Author) - University of Sunshine CoastMehdi Mirzababaei (Author) - Central Queensland University
- Publication details
- International Journal of Pavement Engineering, Vol.23(7), pp.2191-2205
- Publisher
- Taylor & Francis
- DOI
- 10.1080/10298436.2020.1849686
- ISSN
- 1477-268X
- Organisation Unit
- University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99494508902621
- Output Type
- Journal article
Metrics
15 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- Web Of Science research areas
- Construction & Building Technology
- Engineering, Civil
- Materials Science, Characterization & Testing
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites