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Assessment of Freeze-Thaw Cycles Impact on Flexural Tensile Characteristics of Asphalt Mixture in Cold Regions

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Listed:
  • Cidan Duojie
  • Wei Si
  • Biao Ma
  • Yongping Hu
  • Xue Liu
  • Xintong Wang

Abstract

Low average temperature, large temperature difference, and continual freeze-thaw cycles have significant impacts on mechanical property of asphalt pavement. Bending test was applied to illustrate the mixtures’ flexural tensile properties under freeze-thaw (F-T) conditions. Experiment results showed that the flexural tensile strength and strain declined as F-T cycles increased; the deterioration of flexural tensile properties decreased sharply during initial F-T cycles but turned smooth after 15–21 F-T cycles. ANOVA showed that F-T cycles, asphalt-aggregate ratio, and gradation had obvious influence on flexural tensile characteristics. Flexural characteristics of AC-13 behaved better than the other gradations. It turned out that the mixtures’ low-temperature bending characteristics were improved when 5.5% optimum asphalt-aggregation ratio or slightly larger AC-13 gradation was applied.

Suggested Citation

  • Cidan Duojie & Wei Si & Biao Ma & Yongping Hu & Xue Liu & Xintong Wang, 2021. "Assessment of Freeze-Thaw Cycles Impact on Flexural Tensile Characteristics of Asphalt Mixture in Cold Regions," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-10, February.
    • Handle: RePEc:hin:jnlmpe:6697693
    DOI: 10.1155/2021/6697693
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    Cited by:

    1. Chengbin Wu & Bowen Zhang & Jiayao Liu & Wei Si, 2023. "Evolution Analysis of Asphalt Pavement Performance in Its Life Cycle: Case Study in Qinghai–Tibet Highway," Sustainability, MDPI, vol. 15(12), pages 1-17, June.

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