Analysis Method for Measurement Uncertainty of Concrete Compressive Strength
XIAO Yue
HU Pan
XIE Jiawei
YANG Yi
CHEN Xu
Abstract：Based on 687 sets of concrete compressive strength data,the standard uncertainty and expanded uncertainty were evaluated using the measurement uncertainty assessment method.By integrating the conversion results of the expanded uncertainty interval,the characteristics of strength distribution,the determination of single value eligibility,and the comprehensive assessment method were systematically analyzed.The results indicate that the compressive strength interval can effectively quantify the impact of uncertain factors,and there is a significant correlation between the average strength interval and the probability interval of the normal distribution.The method for determining single value eligibility can provide a quantitative basis for the uncertainty in critical value determination.The comprehensive assessment method can account for the differences between the specimens submitted for inspection and the actual testing conditions,providing an important basis for enhancing the rigor and applicability of engineering quality assessment.
Keywords：concretecompressive strengthmeasurement uncertaintyconfidence probabilitycoverage interval
Publication Date：2026-01-31
Online Publishing Date：2026-03-17(First online date of this platform, not the publication date of the document)
Pages：7( 97-103 )