Bio-modified rubber: A sustainable alternative for use in asphalt pavements

Elham H. Fini, Daniel Oldham, Taher Abu-Lebdeh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

This paper investigates the feasibility of application of scrap tire and swine manure to produce a sustainable alternative for bituminous asphalt used in pavement construction. Bio-binder is produced from swine manure using thermo-chemical conversion processes. Bio-binder is then blended with crumb rubber and asphalt binder to produce bio-modified rubber (BMR) asphalt. In addition to offering a solution for the management of swine manure and scrap tire, BMR can be a renewable alternative for petroleum-based binder used in pavement construction. To study merit of application of BMR in asphalt industry, this paper compares the rheological properties of BMR with a crumb rubber modified binder (CRM) commonly being used in the U.S. It was found that BMR has comparable properties with CRM. In addition, introduction of bio-binder to CRM asphalt binder found to be beneficial because bio-binder reduces asphalt viscosity allowing for lower mixing and compaction temperature and alleviate crumb rubber's stiffening effect.

Original languageEnglish (US)
Title of host publicationICSDEC 2012
Subtitle of host publicationDeveloping the Frontier of Sustainable Design, Engineering, and Construction - Proceedings of the 2012 International Conference on Sustainable Design and Construction
Pages489-499
Number of pages11
DOIs
StatePublished - Nov 15 2013
Externally publishedYes
Event2nd Annual International Conference Sustainable Design, Engineering and Construction, ICSDEC 2012 - Fort Worth, TX, United States
Duration: Nov 7 2012Nov 9 2012

Publication series

NameICSDEC 2012: Developing the Frontier of Sustainable Design, Engineering, and Construction - Proceedings of the 2012 International Conference on Sustainable Design and Construction

Other

Other2nd Annual International Conference Sustainable Design, Engineering and Construction, ICSDEC 2012
CountryUnited States
CityFort Worth, TX
Period11/7/1211/9/12

Keywords

  • Waste management
  • asphalt
  • bio-binder
  • environmental pollution
  • greenhouse gas
  • scrap tire
  • swine manure

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Architecture

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