Staff View: Encouraging sustainable use of RAP materials for pavement construction in Oman: A review

Encouraging sustainable use of RAP materials for pavement construction in Oman: A review

The Sultanate of Oman has experienced rapid development over the last thirty years and has constructed environmentally friendly and sustainable infrastructure while it continues to find economical alternative resources to achieve the goals of the Oman 2040 vision. The primary concerns are preserving...

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Main Authors:	Dughaishi, Husam Al, Lawati, Jawad Al, Bilema, Munder, Babalghaith, Ali Mohammed, Mashaan, Nuha S., Yusoff, Nur Izzi Md., Milad, Abdalrhman
Format:	Article
Published:	MDPI 2022
Subjects:	GE Environmental Sciences
Online Access:	http://eprints.um.edu.my/43608/
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spelling	my.um.eprints.436082023-10-24T06:31:41Z http://eprints.um.edu.my/43608/ Encouraging sustainable use of RAP materials for pavement construction in Oman: A review Dughaishi, Husam Al Lawati, Jawad Al Bilema, Munder Babalghaith, Ali Mohammed Mashaan, Nuha S. Yusoff, Nur Izzi Md. Milad, Abdalrhman GE Environmental Sciences The Sultanate of Oman has experienced rapid development over the last thirty years and has constructed environmentally friendly and sustainable infrastructure while it continues to find economical alternative resources to achieve the goals of the Oman 2040 vision. The primary concerns are preserving natural resources and reducing the impact of carbon dioxide (CO2 emissions on the environment. This review aims to encourage the sustainable use of reclaimed asphalt pavement (RAP) materials in pavement construction and focuses primarily on employing RAP materials in new pavement projects. Currently, new construction projects utilise a significant percentage of demolished asphalt pavement to save costs and natural resources. The key issue that arises when mixing RAP into new asphalt mixtures is the effects on the mixtures’ resistance to permanent disfigurements, such as fatigue cracks, that influence asphalt mixture performance. Numerous studies have assessed the impact of using RAP in asphalt mixtures and found that RAP increases the stiffness of asphalt mixtures, and thus improves rutting resistance at high temperatures. Nevertheless, the findings for thermal and fatigue cracking were found to be contradictory. This review will address the primary concerns regarding the use of RAP in asphalt pavements, and aims to encourage highway agencies and academic researchers in the Gulf countries to develop frameworks for the practical usage of RAP in the construction of sustainable pavement systems. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. MDPI 2022-06 Article PeerReviewed Dughaishi, Husam Al and Lawati, Jawad Al and Bilema, Munder and Babalghaith, Ali Mohammed and Mashaan, Nuha S. and Yusoff, Nur Izzi Md. and Milad, Abdalrhman (2022) Encouraging sustainable use of RAP materials for pavement construction in Oman: A review. Recycling, 7 (3). ISSN 2313-4321, DOI https://doi.org/10.3390/recycling7030035 <https://doi.org/10.3390/recycling7030035>. 10.3390/recycling7030035
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 Dughaishi, Husam Al Lawati, Jawad Al Bilema, Munder Babalghaith, Ali Mohammed Mashaan, Nuha S. Yusoff, Nur Izzi Md. Milad, Abdalrhman Encouraging sustainable use of RAP materials for pavement construction in Oman: A review
description	The Sultanate of Oman has experienced rapid development over the last thirty years and has constructed environmentally friendly and sustainable infrastructure while it continues to find economical alternative resources to achieve the goals of the Oman 2040 vision. The primary concerns are preserving natural resources and reducing the impact of carbon dioxide (CO2 emissions on the environment. This review aims to encourage the sustainable use of reclaimed asphalt pavement (RAP) materials in pavement construction and focuses primarily on employing RAP materials in new pavement projects. Currently, new construction projects utilise a significant percentage of demolished asphalt pavement to save costs and natural resources. The key issue that arises when mixing RAP into new asphalt mixtures is the effects on the mixtures’ resistance to permanent disfigurements, such as fatigue cracks, that influence asphalt mixture performance. Numerous studies have assessed the impact of using RAP in asphalt mixtures and found that RAP increases the stiffness of asphalt mixtures, and thus improves rutting resistance at high temperatures. Nevertheless, the findings for thermal and fatigue cracking were found to be contradictory. This review will address the primary concerns regarding the use of RAP in asphalt pavements, and aims to encourage highway agencies and academic researchers in the Gulf countries to develop frameworks for the practical usage of RAP in the construction of sustainable pavement systems. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
format	Article
author	Dughaishi, Husam Al Lawati, Jawad Al Bilema, Munder Babalghaith, Ali Mohammed Mashaan, Nuha S. Yusoff, Nur Izzi Md. Milad, Abdalrhman
author_facet	Dughaishi, Husam Al Lawati, Jawad Al Bilema, Munder Babalghaith, Ali Mohammed Mashaan, Nuha S. Yusoff, Nur Izzi Md. Milad, Abdalrhman
author_sort	Dughaishi, Husam Al
title	Encouraging sustainable use of RAP materials for pavement construction in Oman: A review
title_short	Encouraging sustainable use of RAP materials for pavement construction in Oman: A review
title_full	Encouraging sustainable use of RAP materials for pavement construction in Oman: A review
title_fullStr	Encouraging sustainable use of RAP materials for pavement construction in Oman: A review
title_full_unstemmed	Encouraging sustainable use of RAP materials for pavement construction in Oman: A review
title_sort	encouraging sustainable use of rap materials for pavement construction in oman: a review
publisher	MDPI
publishDate	2022
url	http://eprints.um.edu.my/43608/
_version_	1781704683141726208
score	13.211869

Encouraging sustainable use of RAP materials for pavement construction in Oman: A review

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