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. © 2013 American Society of Civil Engineers.
| Original language | English |
|---|---|
| Title of host publication | 2nd Annual International Conference Sustainable Design, Engineering and Construction, ICSDEC 2012 |
| DOIs | |
| State | Published - 2013 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
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