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Research on rheological performance of SBS modified asphalt at low temperature

  • School of Civil Engineering, Harbin Institute of Technology
  • School of Transportation Science and Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, phase angle(δ) and viscous modulus(G″) were used to study the low temperature rheological performance(LTRP) of nine kinds of Styrene-butadiene-styrene (SBS) modified asphalts, with three penetration grades of base asphalts (90, 110, and 130) and three contents of weight (3%, 4.5% and 6%) of linear SBS modifiers. The LTRP of modified asphalts were tested using the Gemini 150 dynamic shear Rheometer produced by Bohlin Company at the temperatures ranging from -10 °C to 10 °C at intervals of 5 °C. Then, the influence of the modifier contents on the LTRP of SBS modified asphalt was analyzed. The result indicated that the modifier contents have a great influence, which is apparently confined by base asphalt's penetration grade. The higher the grade is, the greater the influence. Lastly, the influence of the base asphalt's grade on the LTRP of SBS modified asphalt was investigated. The analysis showed that it plays an important role in the LTRP. What's more, the impact degree is dependent on the modifier's contents. The more the content is, the greater the impact degree is.

Original languageEnglish
Title of host publicationAsphalt Material Characterization, Accelerated Testing, and Highway Management
Pages9-14
Number of pages6
Edition190
DOIs
StatePublished - 2009
Externally publishedYes
Event2009 GeoHunan International Conference - Asphalt Material Characterization, Accelerated Testing, and Highway Management - Changsha, Hunan, China
Duration: 3 Aug 20096 Aug 2009

Publication series

NameGeotechnical Special Publication
Number190
ISSN (Print)0895-0563

Conference

Conference2009 GeoHunan International Conference - Asphalt Material Characterization, Accelerated Testing, and Highway Management
Country/TerritoryChina
CityChangsha, Hunan
Period3/08/096/08/09

Keywords

  • Asphalts
  • China
  • Cold regions
  • Research
  • Rheology
  • Temperature effects

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