Cover Image

The strength and environmental performance of asphalt mixtures with recycled concrete aggregates

Recycling of concrete aggregates in asphalt pavement surfacing is a viable solid waste management strategy. This study evaluated the strength and environmental performance of asphalt mixtures containing different proportions of Recycled Concrete Aggregates (RCA) for road pavement surfacing. Laborato...

Full description

Saved in:
Bibliographic Details
Main Authors: Nwakaire, Chidozie Maduabuchukwu, Onn, Chiu Chuen, Yap, Soon Poh, Yuen, Choon Wah, Koting, Suhana, Mo, Kim Hung, Othman, Faridah
Format: Article
Published: Pergamon-Elsevier Science Ltd 2021
Subjects:
GE Environmental Sciences
Online Access:http://eprints.um.edu.my/28777/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.um.eprints.28777
record_format eprints
spelling my.um.eprints.287772022-08-21T02:15:56Z http://eprints.um.edu.my/28777/ The strength and environmental performance of asphalt mixtures with recycled concrete aggregates Nwakaire, Chidozie Maduabuchukwu Onn, Chiu Chuen Yap, Soon Poh Yuen, Choon Wah Koting, Suhana Mo, Kim Hung Othman, Faridah GE Environmental Sciences Recycling of concrete aggregates in asphalt pavement surfacing is a viable solid waste management strategy. This study evaluated the strength and environmental performance of asphalt mixtures containing different proportions of Recycled Concrete Aggregates (RCA) for road pavement surfacing. Laboratory experiments and environmental life cycle assessment were conducted for different asphalt mixtures. The mixture was evaluated based on their stability/Global Warming Potential (GWP), resilient modulus/GWP, and Indirect Tensile Strength (ITS)/GWP ratios. The mixture containing 40% coarse RCA was judged to be the most efficient based on its highest resilient modulus/GWP and ITS/GWP ratios of 108.30 MPa/kg CO2 eq and 11.75 kPa/kg CO2 eq, respectively. These values are about 9% and 4% higher than the control values for the two indicators, respectively. The study recommended 40% partial replacement of granite with RCA in Stone Mastic Asphalt for optimum strength and environmental impact. Pergamon-Elsevier Science Ltd 2021-11 Article PeerReviewed Nwakaire, Chidozie Maduabuchukwu and Onn, Chiu Chuen and Yap, Soon Poh and Yuen, Choon Wah and Koting, Suhana and Mo, Kim Hung and Othman, Faridah (2021) The strength and environmental performance of asphalt mixtures with recycled concrete aggregates. Transportation Research Part D: Transport and Environment, 100. ISSN 1361-9209, DOI https://doi.org/10.1016/j.trd.2021.103065 <https://doi.org/10.1016/j.trd.2021.103065>. 10.1016/j.trd.2021.103065
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic GE Environmental Sciences
spellingShingle GE Environmental Sciences
Nwakaire, Chidozie Maduabuchukwu
Onn, Chiu Chuen
Yap, Soon Poh
Yuen, Choon Wah
Koting, Suhana
Mo, Kim Hung
Othman, Faridah
The strength and environmental performance of asphalt mixtures with recycled concrete aggregates
description Recycling of concrete aggregates in asphalt pavement surfacing is a viable solid waste management strategy. This study evaluated the strength and environmental performance of asphalt mixtures containing different proportions of Recycled Concrete Aggregates (RCA) for road pavement surfacing. Laboratory experiments and environmental life cycle assessment were conducted for different asphalt mixtures. The mixture was evaluated based on their stability/Global Warming Potential (GWP), resilient modulus/GWP, and Indirect Tensile Strength (ITS)/GWP ratios. The mixture containing 40% coarse RCA was judged to be the most efficient based on its highest resilient modulus/GWP and ITS/GWP ratios of 108.30 MPa/kg CO2 eq and 11.75 kPa/kg CO2 eq, respectively. These values are about 9% and 4% higher than the control values for the two indicators, respectively. The study recommended 40% partial replacement of granite with RCA in Stone Mastic Asphalt for optimum strength and environmental impact.
format Article
author Nwakaire, Chidozie Maduabuchukwu
Onn, Chiu Chuen
Yap, Soon Poh
Yuen, Choon Wah
Koting, Suhana
Mo, Kim Hung
Othman, Faridah
author_facet Nwakaire, Chidozie Maduabuchukwu
Onn, Chiu Chuen
Yap, Soon Poh
Yuen, Choon Wah
Koting, Suhana
Mo, Kim Hung
Othman, Faridah
author_sort Nwakaire, Chidozie Maduabuchukwu
title The strength and environmental performance of asphalt mixtures with recycled concrete aggregates
title_short The strength and environmental performance of asphalt mixtures with recycled concrete aggregates
title_full The strength and environmental performance of asphalt mixtures with recycled concrete aggregates
title_fullStr The strength and environmental performance of asphalt mixtures with recycled concrete aggregates
title_full_unstemmed The strength and environmental performance of asphalt mixtures with recycled concrete aggregates
title_sort strength and environmental performance of asphalt mixtures with recycled concrete aggregates
publisher Pergamon-Elsevier Science Ltd
publishDate 2021
url http://eprints.um.edu.my/28777/
_version_ 1744649137186406400
score 13.211869

Similar Items