Behavior of Reclaimed Polyethylene Modified Asphalt Cement for Paving Purposes
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 6
Abstract
The present paper deals with the procedure for modification of -paving grade asphalt cement using reclaimed polyethylene (PE) derived from low-density polyethylene carry bags collected from domestic waste. The details of the preparation of the PE-modified binder and the results on variation of binder properties with blending temperature and blending time are presented. Results of various tests carried out on the different PE blends indicated enhanced binder properties like improved storage stability, resistance to aging, degradation, and temperature susceptibility. It is observed that viscosity at a given temperature increases with the addition of PE in the binder. Dynamic shear rheometer test results revealed that PE-modified binders (when subjected to the same stress) experienced lower strains than the neat asphalt; in addition, values of PE-modified binders considerably decreased as the PE content was increased. It was found that 5% PE content in modified asphalt by weight is adequate in terms of enhanced binder properties studied.
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Acknowledgments
The writers wish to thank C. E. G. Justo (emeritus professor, Department of Civil Engineering, Bangalore University) and P. K. Sikdar (former director, CRRI) for their valuable guidance and suggestions. The writers also wish to thank H. Jaiprasad (former technical advisor, Bangalore Mahanagara Palike, Bangalore) for his kind suggestions and support during the research work. The writers also wish to thank Sunil Bose (deputy director, CRRI) and Sridhar Raju (formerly scientist, CRRI) for their valuable guidance and support during the research work at Central Road Research Institute (CRRI), New Delhi-110020, India. The writers wish to thank M/s K. K. Plastics Waste Management Private Limited, Bangalore-560078, Karnataka, India, for sponsoring the current research project and having supplied reclaimed PE in shredded form during the research study.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 6 • June 2011
Pages: 833 - 845
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jan 3, 2009
Accepted: Nov 17, 2010
Published online: Nov 19, 2010
Published in print: Jun 1, 2011
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