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首页> 外文期刊>Construction and Building Materials >Quantitative evaluation of low-temperature performance of sustainable asphalt pavements containing recycled asphalt shingles (RAS)
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Quantitative evaluation of low-temperature performance of sustainable asphalt pavements containing recycled asphalt shingles (RAS)

机译：定量评估含有再生沥青瓦（RAS）的可持续沥青路面的低温性能

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摘要

The low-temperature cracking characteristics of asphalt concrete materials containing varying amounts of recycled asphalt shingles (RAS), 0-12.5%, and mixed at three different temperatures are investigated using the Disk-shaped Compact Tension (DC(T)) and acoustic emission (AE) tests. The specimens' AE activities were monitored during cooling from room temperature to -50 ℃ to determine their embrittlement temperatures. It was observed that the mixtures containing RAS had lower DC(T) fracture energies, higher DC(T) peak loads, and warmer embrittlement temperatures than the control mixture. Results also showed that higher mixing temperatures appear to lower embrittlement temperatures for mixtures containing RAS.
机译：使用圆盘形致密张力（DC（T））和声发射研究了包含不同含量的再生沥青瓦（RAS），0-12.5％并在三种不同温度下混合的沥青混凝土材料的低温开裂特性（AE）测试。在从室温冷却到-50℃的过程中监测样品的AE活动，以确定其脆化温度。观察到，与对照混合物相比，包含RAS的混合物具有更低的DC（T）断裂能，更高的DC（T）峰值载荷和较脆的温度。结果还表明，较高的混合温度似乎会降低含RAS混合物的脆化温度。

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  • 来源
    《Construction and Building Materials》 |2014年第5期|1-8|共8页
  • 作者

    Jacob W. Arnold; Behzad Behnia; Megan E. McGovern; Brain Hill; William G. Buttlar; Henrique Reis;

  • 作者单位

    Department of Industrial and Enterprise Systems Engineering, University of Illinois at Urbana-Champaign, 104 S. Mathews Ave., Urbana, IL 61801, United States;

    Department of Civil & Environmental Engineering, University of Illinois at Urbana-Champaign, 205 Mathews MC 250, Urbana, IL 61801, United States;

    Department of Industrial and Enterprise Systems Engineering, University of Illinois at Urbana-Champaign, 104 S. Mathews Ave., Urbana, IL 61801, United States;

    Department of Civil & Environmental Engineering, University of Illinois at Urbana-Champaign, 205 Mathews MC 250, Urbana, IL 61801, United States;

    Department of Civil & Environmental Engineering, University of Illinois at Urbana-Champaign, 205 Mathews MC 250, Urbana, IL 61801, United States;

    Department of Industrial and Enterprise Systems Engineering, University of Illinois at Urbana-Champaign, 104 S. Mathews Ave., Urbana, IL 61801, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Asphalt concrete; Recycled asphalt shingles; Acoustic emission; Embrittlement temperature; DC(T) tests; Fracture energy; Mixing temperature;

    机译：沥青混凝土;再生沥青瓦;声发射;脆化温度;DC（T）测试;断裂能;混合温度;

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