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首页> 外文期刊>Magazine of Concrete Research >Effects of temperature and loading rate on the compressive behaviour of CA mortar
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Effects of temperature and loading rate on the compressive behaviour of CA mortar

机译：温度和加载速率对CA砂浆抗压性能的影响

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摘要

mm/min The coupled effect of loading rate and temperature on the compressive behaviour of cement asphalt mortar (CA mortar) is investigated in this paper. The uniaxial compressive test is conducted with CA mortar subjected to three different temperatures from 5 degrees C to 35 degrees C and seven different loading rates in the range of 1-50 mm/min. The failure modes, experimental stress-strain relationship and compressive strength of CA mortar are obtained in this study. Based on the experimental results, it is found that CA mortar fails in a similar manner with varying temperature, while the higher loading rate leads to a more severe and quick failure of CA mortar. The shape of the stress-strain curve of CA mortar is shown to be similar at different temperatures and loading rates, but the compressive strength and peak strain varies with temperature and loading rate. According to the experimental results, the compressive strength increases with decreasing temperature and increasing loading rate up to 20 mm/min. An empirical equation to determine the compressive strength of CA mortar with respect to temperature and loading rate is proposed and verified by the experimental data.
机译：毫米/分钟本文研究了加载速率和温度对水泥沥青砂浆（CA砂浆）抗压性能的影响。用CA砂浆进行单轴压缩试验，该砂浆要经受5到35摄氏度的三种不同温度和1-50 mm / min范围内的七种不同的加载速率。本研究获得了CA砂浆的破坏模式，实验应力-应变关系和抗压强度。基于实验结果，发现CA砂浆在变化的温度下以类似的方式破裂，而较高的加载速率导致CA砂浆的更严重和更快的破裂。在不同的温度和加载速率下，CA砂浆的应力-应变曲线形状相似，但抗压强度和峰值应变随温度和加载速率而变化。根据实验结果，抗压强度随着温度的降低和最高20 mm / min的加载速率的增加而增加。提出了确定CA砂浆抗压强度与温度和加载速率有关的经验公式，并通过实验数据进行了验证。

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  • 来源
    《Magazine of Concrete Research》 |2016年第24期|1240-1252|共13页
  • 作者

    Wu Xi; Wang Jin-feng; Xu Rong-qiao; Chen Yi-ri;

  • 作者单位

    Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou, Zhejiang, Peoples R China|Zhejiang Univ Technol, Zhejiang Key Lab Civil Engn Struct & Disaster Pre, Hangzhou, Zhejiang, Peoples R China;

    Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou, Zhejiang, Peoples R China;

    Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou, Zhejiang, Peoples R China;

    Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou, Zhejiang, Peoples R China;

  • 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

    cement; cementitious materials; compressive strength; temperature-related thermal effects;

    机译：水泥;胶凝材料;抗压强度;温度相关和热效应;

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