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混凝土测区强度的测定,是检测实验室评定混凝土构件质量的主要手段。现场检测测区混凝土强度的检测方法很多,其中回弹法、钻芯法是应用最广的检测方法。论文对结构构件同一测区混凝土强度分别采用回弹和钻芯两种方法检测,并对每种方法的检测结果进行测量不确定度评定。分析不确定度来源,建立不确定度评定的模型,分别给出这两种方法检测结果的不确定度报告。这两种检测方法的比较,可以为检测实验室进行测区混凝土强度的检测提供参考。
Determination of the strength of concrete measuring area is the main means of testing laboratory quality assessment of concrete components. There are many detection methods for the strength of concrete in the field test area, among which rebound method and core method are the most widely used methods. The paper tests the strength of concrete in the same test area of structural members by rebound and core drilling respectively, and evaluates the measurement uncertainty of the test results of each method. Analyze the sources of uncertainty, establish the model of uncertainty assessment, and give the uncertainty report of the detection results of these two methods respectively. The comparison of these two methods can provide a reference for testing the strength of concrete in testing area.