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Experiments and modeling on resistivity of multi-layer concrete with and without embedded rebar.

机译：带有和不带有嵌入式钢筋的多层混凝土电阻率的实验和建模。

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摘要

Factors such as water to cement ratio, moisture, mixture, presence and depth of rebar, and dimension of specimens, all of which affect apparent resistivity of concrete, were analyzed by experimental and modeling methods. Cylinder and rectangular prism concrete specimens were used in the experiments exposed in a high moisture room, laboratory room temperature, high humidity and outdoor weather environments. Single rebar and four rebar specimens were used to study the rebar effect on the apparent resistivity. Modeling analysis was employed to verify and explain the experimental results. Based on the results, concrete with fly ash showed higher resistivity than concrete with just ordinary Portland cement. Rebar presence had a significant effect on the measured apparent resistivity at some of the locations. The results could be used as a guide for field apparent resistivity measurements and provide a quick, more precise and easy way to estimate the concrete quality.
机译：通过实验和建模方法分析了诸如水灰比，水分，混合，钢筋的存在和深度以及试样的尺寸等因素，这些因素都会影响混凝土的视电阻率。在暴露于高湿度房间，实验室室温，高湿度和室外天气环境中的实验中，使用圆柱和矩形棱柱混凝土标本。使用单个钢筋和四个钢筋样本来研究钢筋对视电阻率的影响。模型分析被用来验证和解释实验结果。根据结果​​，粉煤灰混凝土的电阻率比普通硅酸盐水泥高。钢筋的存在对某些位置的表观电阻率有显着影响。结果可作为现场视电阻率测量的指导，并提供一种快速，更精确和容易的方法来估计混凝土质量。

著录项

  • 作者

    Liu, Yanbo.;

  • 作者单位

    Florida Atlantic University.;

  • 授予单位 Florida Atlantic University.;
  • 学科 Engineering Civil.;Engineering Marine and Ocean.
  • 学位 M.S.
  • 年度 2008
  • 页码 91 p.
  • 总页数 91
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;海洋工程;
  • 关键词

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