...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Insight >Characterisation of oxidative ageing in asphalt concrete using a non-collinear ultrasonic wave mixing approach
【24h】

Characterisation of oxidative ageing in asphalt concrete using a non-collinear ultrasonic wave mixing approach

机译：非共线超声波混合法表征沥青混凝土的氧化老化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A study to assess oxidative ageing of asphalt concrete using non-collinear wave mixing of two dilatational waves is presented. Criteria were used to assure that the detected scattered wave originated via wave interaction in the asphalt concrete and not from non-linearities in the testing equipment. These criteria included the frequency and propagating direction of the resultant scattered wave and the time-of-flight separation between the two primary waves and the resulting scattered wave. It was observed that asphalt concrete exhibits non-linear behaviour. It was also observed that the non-linear response decreases with increased ageing until approximately 24 h of ageing, after which the non-linear response exponentially increases. This observation is consistent with previous studies, including the acoustic emission response to thermal loading, and with changes in the dynamic modulus and fracture energy with increasing ageing.
机译：提出了一种使用两种膨胀波的非共线波混合来评估沥青混凝土氧化老化的研究。使用标准来确保检测到的散射波是由沥青混凝土中的波相互作用引起的，而不是由测试设备中的非线性引起的。这些标准包括产生的散射波的频率和传播方向，以及两个主波与产生的散射波之间的飞行时间间隔。观察到沥青混凝土表现出非线性行为。还观察到，非线性响应随着老化的增加而降低，直到老化大约24小时，此后非线性响应呈指数增长。该观察结果与以前的研究一致，包括对热负荷的声发射响应，以及随着老化的增加动态模量和断裂能的变化。

著录项

  • 来源
    《Insight》 |2014年第7期|367-374|共8页
  • 作者

    M E McGovern; W G Buttlar; H Reis;

  • 作者单位

    Department of Industrial and Enterprise Systems Engineering, University of Illinois at Urbana-Champaign;

    Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 N Mathews Avenue, Urbana, Illinois 61801, USA;

    Department of Industrial and Enterprise Systems Engineering, University of Illinois at Urbana-Champaign;

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

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号