Evaluation of Pyrolisis LDPE Modified Asphalt Paving Materials
Publication: Journal of Materials in Civil Engineering
Volume 21, Issue 10
Abstract
The main objective of this research is to investigate the potential use of pyrolisis low density polyethylene (LDPE) as a modifier in hot mix asphalt paving mixtures. Five different blends including conventional mix were subjected to binder testing such as rheological tests, as well as to some other tests related to the homogeneity of the system. Optimum asphalt content was obtained by Marshall method and used in all the modified mixes. The engineering properties, including Marshall stability, indirect tensile strength, and compressive strength were determined. Research results indicate that modified binders showed higher softening point, keeping the values of ductility at minimum range of specification of , and caused a reduction in percentage loss of weight due to heat and air (i.e., increase durability of original asphalt). The results indicated that the inclusion of pyrolisis LDPE with asphalt concrete mixtures gave a quite satisfactory result in terms of stability and other Marshall properties, increase in indirect tensile, and compressive strength.
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Acknowledgments
The writers extend their appreciation to the Bituminous Laboratory, College of Engineering, Mosul University, for technical assistance and the various companies that provided materials used in this study. Special thanks go to the Dean of Engineering College, Professor M. T. Al-Layla, Chairman of the Civil Engineering Department, Professor B. J. Al-Selifany, Mr. A. A Osamma, and M. Ibrahim without whom this study would not have been successful.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 21 • Issue 10 • October 2009
Pages: 618 - 623
Copyright
© 2009 ASCE.
History
Received: Apr 20, 2007
Accepted: Feb 9, 2009
Published online: Sep 15, 2009
Published in print: Oct 2009
Notes
Note. Associate Editor: Shin-Che Huang
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