Permanent Deformation Characteristics of BRA Modified Asphalt Paving Mixtures Using Dynamic Creep Test Analysis

Pavements are an important part of highway transportation infrastructure that constitutes an enormous investment of public fund. A tremendous amount of time and money is spent now and then each year on construction of both new and existing asphalt pavement. The objective of this study is to evaluate the permanent deformation characteristics of buton rock asphalt (BRA) modified asphalt paving mixtures using dynamic creep test analysis. Dynamic creep test was conducted on unmodified and BRA modified asphalt mixture using UTM25 machine. Asphalt cement of C170 was used as the base asphalt binder for unmodified asphalt mixture and BRA modified asphalt mixtures were made by substituting the base asphalt with 10, 20, and 30% (by weight of total asphalt binder) natural binder continuing granular BRA modified binder. The granular (pellets) BRA modified binder with a diameter of 7–10 mm was produced and extracted according the Australia Standard. Results of this analysis are then compared to simplify the results of unmodified and BRA modified asphalt mixtures and the conclusions are drawn.

• Record URL:
  https://doi.org/10.1061/9780784482469.008
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784482469
• Supplemental Notes:
  • © 2019 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Nega, Ainalem
  • Karami, Muhammad
  • Nikraz, Hamid
• Conference:
  • International Airfield and Highway Pavements Conference 2019
  • Location: Chicago Illinois, United States
  • Date: 2019-7-21 to 2019-7-24
• Publication Date: 2019-7

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 75-87
• Monograph Title: Airfield and Highway Pavements 2019: Testing and Characterization of Pavement Materials

Subject/Index Terms

• TRT Terms: Asphalt additives; Asphalt mixtures; Asphalt rock; Bituminous binders; Creep tests; Deformation
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01728546
• Record Type: Publication
• ISBN: 9780784482469
• Files: TRIS, ASCE
• Created Date: Jan 28 2020 9:46AM