Characterization of Damage and Aging Resistance of Asphalt Mastics with Coal Combustion By-Products

In this study, two asphalt binders are blended with four particulate types; one natural filler and three Coal Combustion By-Products (CCPs), to make mastics at different concentrations. This initial study aims to evaluate the compatibility of different asphalt binders with these particulates in terms of damage and aging resistance. High and intermediate temperature testing is conducted while varying the aging level. Results show that the particulates, at all concentrations, improve high temperature rutting resistance of mastics. At intermediate temperature, the results show significant dependency on particulate, binder and polymer modification types. In general, results show that CCP mastics with unmodified binders increase damage resistance at high temperature, with no determinate effect on aging related stiffness. For the polymer modified binder, Spray Dryer Absorber (SDA) appears to enhance its properties significantly as noticed by increased damage resistance, recovery, and significant retardation in aging related stiffness.

• Record URL:
  https://doi.org/10.1061/9780784479216.008
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784479216
• Supplemental Notes:
  • © 2015 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Bautista, Emil G
  • Faheem, Ahmed F
  • Saha, Rajan
  • Sobolev, Konstantin
• Conference:
  • Airfield and Highway Pavements 2015
  • Location: Miami Florida, United States
  • Date: 2015-6-7 to 2015-6-10
• Publication Date: 2015-6

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 74-85
• Monograph Title: Airfield and Highway Pavements 2015: Innovative and Cost-Effective Pavements for a Sustainable Future

Subject/Index Terms

• TRT Terms: Aging (Materials); Bituminous binders; High temperature; Mastic asphalt; Pavement performance; Polymer asphalt; Rutting
• Uncontrolled Terms: Coal combustion byproducts; Spray dryer ash
• Subject Areas: Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01568779
• Record Type: Publication
• ISBN: 9780784479216
• Files: TRIS, ASCE
• Created Date: Jun 29 2015 3:52PM