Evaluating the Influence of Polymer Modified Asphalt Binders on Low Temperature Properties

Amal Abdelaziz, Chun Hsing Ho, Matthew Snyder

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

Abstract

Low temperature cracking is one of the most common distress types in asphalt concrete pavements, particularly in cold regions. Many factors influence the behaviour of asphalt concrete pavements at low temperatures, such as the applied traffic load, environmental conditions and material characteristics. Asphalt binders are one of the primary factors that influence material properties. The purpose of this study is to compare the performance of two types of asphalt binders: styrene-butadiene-styrene (SBS) modified asphalt binder and unmodified asphalt binder in resisting low temperature cracking. The study was conducted in Flagstaff, located at the area of Northern Arizona, in the United States. Asphalt samples were collected from the paving sections and were compacted and trimmed into small beams. Bending Beam Rheometer tests were performed, using the trimmed specimens at temperatures of -6°C, -12°C and -18°C. Based on the results of the study, it was concluded that, SBS modified asphalt binder performs better in resisting low temperature cracking, compared to the unmodified binder. Based on the study outcomes, it is recommended to use SBS polymer modified polymers in areas subjected to severe cold weather events to maximize the life span of asphalt concrete pavements.

Original languageEnglish (US)
Title of host publicationMATBUD 2018 - 8th Scientific-Technical Conference on Material Problems in Civil Engineering
EditorsTomasz Tracz, Izabela Hager
PublisherEDP Sciences
ISBN (Electronic)9782759890521
DOIs
StatePublished - Jun 15 2018
Event8th Scientific-Technical Conference on Material Problems in Civil Engineering, MATBUD 2018 - Cracow, Poland
Duration: Jun 25 2018Jun 27 2018

Publication series

NameMATEC Web of Conferences
Volume163
ISSN (Electronic)2261-236X

Other

Other8th Scientific-Technical Conference on Material Problems in Civil Engineering, MATBUD 2018
CountryPoland
CityCracow
Period6/25/186/27/18

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)

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  • Cite this

    Abdelaziz, A., Ho, C. H., & Snyder, M. (2018). Evaluating the Influence of Polymer Modified Asphalt Binders on Low Temperature Properties. In T. Tracz, & I. Hager (Eds.), MATBUD 2018 - 8th Scientific-Technical Conference on Material Problems in Civil Engineering [05012] (MATEC Web of Conferences; Vol. 163). EDP Sciences. https://doi.org/10.1051/matecconf/201816305012