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Mechanical performance and global warming potential of unaged warm cup lump modified asphalt

The use of natural rubber modified bitumen to improve pavement performance exist over a century. However, few documented research explore its mechanical performance in warm mix asphalt (WMA). This paper examined the rutting, moisture damage, tensile properties and carbon emission of cup lump rubber...

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Main Authors:	Abdulrahman, S., Hainin, M.R., Idham Mohd Satar, M.K., Hassan, N.A., Usman, A.
Format:	Article
Published:	Elsevier Ltd 2021
Online Access:	https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102647916&doi=10.1016%2fj.jclepro.2021.126653&partnerID=40&md5=3c549ca28581c563bab756141a3b82ff http://eprints.utp.edu.my/23898/
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spelling	my.utp.eprints.238982021-08-19T13:24:22Z Mechanical performance and global warming potential of unaged warm cup lump modified asphalt Abdulrahman, S. Hainin, M.R. Idham Mohd Satar, M.K. Hassan, N.A. Usman, A. The use of natural rubber modified bitumen to improve pavement performance exist over a century. However, few documented research explore its mechanical performance in warm mix asphalt (WMA). This paper examined the rutting, moisture damage, tensile properties and carbon emission of cup lump rubber modified asphalt (CMA) in hot mix asphalt (HMA) and WMA. Aggregate coating and compactability tests were employed to select the production temperature of the WMA. The result shows that the warm cup lump modified asphalt (WCMA) has excellent rutting resistance of less than 2 mm rut depth at 8000 load repetitions representing 21 improvement compared with the conventional HMA. The tensile property was improved by 62 due to cup lump rubber (CLR) modification. Moisture damage evaluation shows that the WCMA retained more than 95 bitumen coating and has a tensile strength ratio (TSR) value of 99, thus fulfilling the AASHTO T283 minimum requirement of 80. The asphalt mixtures resistance to severe condition of stripping and rutting happening simultaneously revealed that the mixes are more sensitive to rutting than the stripping component of the APA-moisture damage test. The emission test result shows that producing WCMA at 40 Â°C lower than CMA reduced 5 kg of CO2 equivalent, amounting to 23 reduction in global warming potential. The multi-attribute analysis combined the mechanical performance results and environmental impact to rank WCMA as the optimum mixture for future road construction. Â© 2021 Elsevier Ltd Elsevier Ltd 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102647916&doi=10.1016%2fj.jclepro.2021.126653&partnerID=40&md5=3c549ca28581c563bab756141a3b82ff Abdulrahman, S. and Hainin, M.R. and Idham Mohd Satar, M.K. and Hassan, N.A. and Usman, A. (2021) Mechanical performance and global warming potential of unaged warm cup lump modified asphalt. Journal of Cleaner Production, 297 . http://eprints.utp.edu.my/23898/
institution	Universiti Teknologi Petronas
building	UTP Resource Centre
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Petronas
content_source	UTP Institutional Repository
url_provider	http://eprints.utp.edu.my/
description	The use of natural rubber modified bitumen to improve pavement performance exist over a century. However, few documented research explore its mechanical performance in warm mix asphalt (WMA). This paper examined the rutting, moisture damage, tensile properties and carbon emission of cup lump rubber modified asphalt (CMA) in hot mix asphalt (HMA) and WMA. Aggregate coating and compactability tests were employed to select the production temperature of the WMA. The result shows that the warm cup lump modified asphalt (WCMA) has excellent rutting resistance of less than 2 mm rut depth at 8000 load repetitions representing 21 improvement compared with the conventional HMA. The tensile property was improved by 62 due to cup lump rubber (CLR) modification. Moisture damage evaluation shows that the WCMA retained more than 95 bitumen coating and has a tensile strength ratio (TSR) value of 99, thus fulfilling the AASHTO T283 minimum requirement of 80. The asphalt mixtures resistance to severe condition of stripping and rutting happening simultaneously revealed that the mixes are more sensitive to rutting than the stripping component of the APA-moisture damage test. The emission test result shows that producing WCMA at 40 Â°C lower than CMA reduced 5 kg of CO2 equivalent, amounting to 23 reduction in global warming potential. The multi-attribute analysis combined the mechanical performance results and environmental impact to rank WCMA as the optimum mixture for future road construction. Â© 2021 Elsevier Ltd
format	Article
author	Abdulrahman, S. Hainin, M.R. Idham Mohd Satar, M.K. Hassan, N.A. Usman, A.
spellingShingle	Abdulrahman, S. Hainin, M.R. Idham Mohd Satar, M.K. Hassan, N.A. Usman, A. Mechanical performance and global warming potential of unaged warm cup lump modified asphalt
author_facet	Abdulrahman, S. Hainin, M.R. Idham Mohd Satar, M.K. Hassan, N.A. Usman, A.
author_sort	Abdulrahman, S.
title	Mechanical performance and global warming potential of unaged warm cup lump modified asphalt
title_short	Mechanical performance and global warming potential of unaged warm cup lump modified asphalt
title_full	Mechanical performance and global warming potential of unaged warm cup lump modified asphalt
title_fullStr	Mechanical performance and global warming potential of unaged warm cup lump modified asphalt
title_full_unstemmed	Mechanical performance and global warming potential of unaged warm cup lump modified asphalt
title_sort	mechanical performance and global warming potential of unaged warm cup lump modified asphalt
publisher	Elsevier Ltd
publishDate	2021
url	https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102647916&doi=10.1016%2fj.jclepro.2021.126653&partnerID=40&md5=3c549ca28581c563bab756141a3b82ff http://eprints.utp.edu.my/23898/
_version_	1738656537466896384
score	13.211869

Mechanical performance and global warming potential of unaged warm cup lump modified asphalt

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