Effect of components on the performance of asphalt modified by waste packaging polyethylene

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• 作者：Maorong Zhang 张茂荣 ; Changqing Fang 方长青…
• 刊名：Journal of Wuhan University of Technology--Materials Science Edition
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：31
• 期：4
• 页码：931-936
• 全文大小：1,341 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Chinese Library of Science
  
• 出版者：Wuhan University, co-published with Springer
• ISSN：1993-0437
• 卷排序：31

文摘

Waste packaging polyethylene (WPE) was used to modify raw asphalt by melt blending the components at 190 °C for 1 h in a simple mixer and subsequently machining them at 120 °C for 1 h in a high-speed shearing machine. The effect of modification on the degree of the penetration, the softening point and the ductility of the asphalt was studied using fluorescent microscopy, infrared spectrometry, component changes and various other techniques. The experimental results showed that no chemical reactions took place in the components themselves (saturate, aromatic, asphaltene and resin) during the modifications. The softening point and penetration of the asphalt were found to be closely related to the resulting contents of the asphaltene, saturate and resin components. In addition, aromatics were identified as having the greatest impact on the ductility of the asphalt.Key wordswaste packaging polyethyleneasphaltsaturatearomaticasphalteneresin