混凝土抗压强度检测精度对比研究

发布时间：2018-04-19 23:37

  本文选题：混凝土 + 抗压强度　； 参考：《建筑技术》2015年S2期

【摘要】：通过对工程上常用的回弹法(无损)、后锚固法(微破损)和钻芯法(局部破损)3种混凝土抗压强度现场检测方法,对C20,C40,C50,C60,C70共5个设计强度等级的混凝土试块和试件,分别在龄期:28d,90d,180d,365d,730d'1100d时同步进行混凝土抗压强度检测及试验的基础上,分析对比3种检测方法在同条件下整体检测精度和分区段检测精度,研究3种检测方法在不同实际工程现场检测条件下的适用性,为提高混凝土抗压强度现场检测精度及不同检测目的和条件下选择适当的检测方法提供技术支持。
[Abstract]:In this paper, the concrete specimens and specimens with five design strength grades, C20C40C50C50C60C70, which are commonly used in engineering, are tested by three kinds of rebound methods (non-destructive method, post-anchoring method (micro-damage) and drilling core method (local breakage)), which are used to detect the compressive strength of concrete on the spot. On the basis of measuring and testing the compressive strength of concrete synchronously at the age of 28 days, 90 days, 180 days, 365 days or 730 days or 1100d, this paper analyzes and compares the overall detection accuracy and the section detection accuracy of the three testing methods under the same conditions. This paper studies the applicability of the three detection methods under different actual engineering site conditions, and provides technical support for improving the accuracy of field detection of concrete compressive strength and selecting appropriate detection methods under different testing objectives and conditions.
【作者单位】： 辽宁省建设科学研究院;
【分类号】：TU755.7
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本文编号：1775274