TAILIEUCHUNG - Rheology investigation of waste LDPE and crumb rubber modified bitumen

In this article, waste plastics (low-density polyethylene, LDPE) and crumb rubber have been utilized to solve one of the most important environmental issues and to improve bitumen performance properties by these low cost materials. | Rheology investigation of waste LDPE and crumb rubber modified bitumen Engineering Solid Mechanics 2018 27-38 Contents lists available at GrowingScience Engineering Solid Mechanics homepage esm Rheology investigation of waste LDPE and crumb rubber modified bitumen Hosein Zanjirani Farahania Massoud Palassia and Saeed Sadeghpour Galooyakb a School of Civil Engineering College of Engineering University of Tehran Enghelab Ave. Tehran Iran b Refining Technology Development Division Research Institute of Petroleum Industry Tehran Iran A R T I C L EI N F O ABSTRACT Article history In this article waste plastics low-density polyethylene LDPE and crumb rubber have been Received 26 June 2017 utilized to solve one of the most important environmental issues and to improve bitumen Accepted 8 November 2017 performance properties by these low cost materials. At first modified bitumen samples were Available online made using high shear mixer then classic and performance tests were performed on them. It 8 November 2017 Keywords has been observed that adding low-density polyethylene and crumb rubber to the bitumen leads Bitumen to improvement of classical characteristics. Then after conducting dynamic shear rheometer Waste material test on modified bitumen samples it was found that the sample containing 3 LDPE and 3 LDPE crumb rubber has the best performance. Conducting short-term and long-term aging Aging experiments on samples containing 3 LDPE showed improved performance at high BBR temperature services. After BBR test more appropriate performance grade is observed for the sample containing 3 LDPE 3 crumb rubber. 2018 by the authors licensee Growing Science Canada. 1. Introduction Polymer modification of bitumen is the incorporation of polymers in bitumen by mechanical mixing or chemical reaction. The chemical behavior and reactivity of polymers however are also supposed to affect their compatibility with bitumen which may have a direct effect on the .

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