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Dynamic mechanical characterizations and road performances of flame retardant asphalt mortars and concretes

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Abstract

To research the dynamic mechanical properties and road performances of flame retardant asphalt mortars and mixtures, four different asphalt mortars/mixtures were prepared: a reference group and three asphalt mortars/mixtures containing composite flame retardant materials (M-FRs) of different proportions. Temperature sweep, frequency sweep, repeated creep test, force ductility test and bending beam rheological test were carried out to research the dynamic mechanical properties of asphalt mortars containing M-FRs; wheel-tracking test, low-temperature bending test and freeze-thaw split test were used to study the road performances of asphalt mixtures containing M-FRs. The results show that high-temperature performances of the three flame retardant asphalt mortars improve greatly, while low-temperature cracking resistances decline. Both high-temperature performances and water stabilities of asphalt mixtures containing M-FRs are quite good and exceed the specification requirements. However, their low-temperature performances decline in different degrees. In summary, besides their good flame retardancy, the flame retardant asphalt mortars and mixtures also exhibit acceptable road performance.

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Authors and Affiliations

  1. School of Highway, Chang’an University, Xi’an, 710064, China

    Xiantao Qin  (秦先涛)

  2. School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan, 430023, China

    Xiantao Qin  (秦先涛)

  3. School of Materials Science and Engineering, Chang’an University, Xi’an, 710061, China

    Siyue Zhu, Zuzhong Li & Shuanfa Chen

  4. Engineering Research Center of Transportation Materials of Ministry of Education, Chang’an University, Xi’an, 710061, China

    Shuanfa Chen

Authors
  1. Xiantao Qin  (秦先涛)
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  2. Siyue Zhu
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  3. Zuzhong Li
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  4. Shuanfa Chen
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Corresponding author

Correspondence to Xiantao Qin  (秦先涛).

Additional information

Funded by the National Key Technology R&D Program for the 12th Five-Year Plan (No.2011BAE27B04)

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Qin, X., Zhu, S., Li, Z. et al. Dynamic mechanical characterizations and road performances of flame retardant asphalt mortars and concretes. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 30, 1036–1042 (2015). https://doi.org/10.1007/s11595-015-1269-4

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  • DOI: https://doi.org/10.1007/s11595-015-1269-4

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