Quantitative Analysis of Functional Polymer in Recycled Tire Rubber Used in Modified Asphalt Binders

Since the 1960s, ground tire rubber (GTR) has been used to modify asphalt binders used in hot-mix asphalt, and the physical characteristics of GTR are critical to final asphalt pavement performance. This study seeks to identify methods for better understanding and quantification of functional polymer content in GTR as well as the general chemical characteristics of GTR used to modify asphalt binders. Specifically, the authors evaluate the merits of the thermogravimetric analysis (TGA) method to quantify GTR's functional polymer content and general chemical characteristics. They conclude that TGA analysis effectively determines total functional polymer available in GTR as an asphalt binder modifier and measures the chemical make-up of the available polymer in terms of natural rubber and styrene-butadiene rubber.

• Availability:
  • Find a library where document is available. Order URL: http://www.asphalttechnology.org/annual-journal/current-issue.html
• Corporate Authors:

  Association of Asphalt Paving Technologists (AAPT)

  6776 Lake Drive
  Lino Lakes, MN  United States  55014

  DEStech Publications, Inc.

  439 Duke Street
  Lancaster, Pennsylvania  United States  17602
• Authors:
  • Baumgardner, Gaylon L
  • Hardee, John R
  • Negulescu, Ioan I
  • Williams, Elton R
  • Howard, Isaac L
  • St John, Robert C
• Conference:
  • 89th Association of Asphalt Paving Technologists' Annual Meeting
  • Location: Atlanta Georgia, United States
  • Date: 2014-3-16 to 2014-6-19
• Publication Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 583-611
• Monograph Title: Asphalt Paving Technology 2014
• Serial:
  • Journal of the Association of Asphalt Paving Technologists
  • Issue Number: 83
  • Publisher: Association of Asphalt Paving Technologists (AAPT)
  • ISSN: 0270-2932

Subject/Index Terms

• TRT Terms: Asphalt rubber; Bituminous binders; Quantitative analysis; Thermogravimetric analysis
• Uncontrolled Terms: Ground tires
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01636658
• Record Type: Publication
• Files: TRIS
• Created Date: May 9 2017 8:57AM