Study on the modification mechanism of asphalt with waste packaging polymer

Changqing Fang, Tiehu Li, Shisheng Zhou, Xin Wang, Lance Heiliger

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Instead of traditional polymer modifiers in asphalt, this experiment tested the addition of the common plastic bag (primarily LLDPE). Shredded plastic bags were added by percent weight for samples of 2%, 4%, and 6%. Softening point, penetration, ductility, low temperature-cracking performance and the micro-structure of the modified asphalt were studied. Analysis of the mixing process and structure of the modified asphalt indicated that swelling and molecular level crack-branching were the main reasons for the modified effect. Copyright ASCE 2008.

Original languageEnglish
Title of host publicationTransportation and Development Innovative Best Practices 2008 - Proceedings of the 1st International Symposium on Transportation and Development Innovative Best Practices 2008, TDIBP 2008
Pages468-473
Number of pages6
StatePublished - 2008
Event1st International Symposium on Transportation and Development Innovative Best Practices 2008, TDIBP 2008 - Beijing, China
Duration: 24 Apr 200826 Apr 2008

Publication series

NameTransportation and Development Innovative Best Practices 2008 - Proceedings of the 1st International Symposium on Transportation and Development Innovative Best Practices 2008, TDIBP 2008
Volume319

Conference

Conference1st International Symposium on Transportation and Development Innovative Best Practices 2008, TDIBP 2008
Country/TerritoryChina
CityBeijing
Period24/04/0826/04/08

Keywords

  • Crack hinging
  • Modified asphalt binder
  • Shear yield
  • Swelling
  • Waste-PE in packing (WPE)

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