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ISSN:
2319-6009 (Online)
Abbreviated title:
Int. J Struct. Civ. Eng. Res.
Editor-in-Chief:
Prof. Eric Strauss
Associate Editor:
Assoc. Prof. Wenxing Zhou
Executive Editor:
Ms. Cherry L. Chen
DOI:
10.18178/ijscer
Abstracting/Indexing:
Google Scholar, Cross-ref, CNKI,
etc.
E-mail questions to:
IJSCER Editorial Office
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Editor-in-Chief
Prof. Eric Strauss
Michigan State University, USA
I am very excited to serve as the Editor-in-Chief of the International Journal of Structural and Civil Engineering Research
(IJSCER)
and hope that the publication can enrich the readers’ experience...
What's New
2024-08-27
August 27th, 2024 News! Vol. 13, No. 3, 2024 issue has been published online
2024-01-04
IJSCER will adopt Article-by-Article Work Flow. For the quarterly journal, each issue will be released at the end of the issue month.
2023-11-06
November 6th, 2023 News! Vol. 12, No. 4, November 2023 issue has been published online
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Volume 2, No. 4, November 2013
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Improvement of the Mechanical Characteristics of Reclaimed Asphalt Pavement in Iraq
Saud A Sultan, Mohammed B Abduljabar, and Mariam H Abbas
Department of Highways & Transp., College of Engineering, Al Mustansiriyah University
Abstract
—The technique of Recycling Asphalt Pavement (RAP) for road construction is widely used so that RAP has been called the most recycled material in the world. RAP is most commonly used as an aggregate substitute in asphalt mix also it is used as granular sub-base or base aggregate and embankment or fill material. Unfortunately, the mechanical properties of RAP materials do not meet the requirements of State Organization for Roads and Bridges (SORB, 2003) in Iraq for sub-base and base aggregate materials, such as gradation, California Bearing Ratio (CBR), and other strength coefficients. The objective of this study was to investigate and examine different RAP/virgin aggregate blending techniques to improve the mechanical characteristics of local RAP materials in Iraq. A detailed laboratory testing program was conducted to achieve these objectives. It was found that the blending of up to 40% RAP materials with different local virgin sub-base materials improves the RAP mechanical characteristics to meet SCRB (2003) requirements for road sub-base materials and provides economical, environmental, and sustainable road construction technique in Iraq. A computerized design and management analysis which was carried out on life cycle costs of flexible pavement with unbounded sub-base layer of blended virgin aggregate materials with RAP showed savings of up to 39% of total pavement cost depending on design in comparison with conventional flexible pavement in Iraq.
Index Terms
—mechanical properties, RAP, blending techniques, Iraq
Cite: Saud A Sultan, Mohammed B Abduljabar, and Mariam H Abbas, "Improvement of the Mechanical Characteristics of Reclaimed Asphalt Pavement in Iraq," International Journal of Structural and Civil Engineering Research, Vol. 2, No. 4, pp. 22-29, November 2013.
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