钻芯法检测混凝土抗压强度的不确定度评定

为评定混凝土抗压强度的测量不确定度,采用钻芯法从墩柱中钻取,φ1OOmm的混凝土芯样进行抗压强度试验,根据不确定度的数学模型确定影响试验结果的各项因素,计算各因素所带来的不确定度分量,求出合成标准不确定度和扩展不确定度,最终给出混凝土抗压强度测量结果的检测报告.

Uncertainty evaluation of tested result for compressive strength of concrete by drilled core method

First,in order to evaluate the uncertainty of testing compressive strength for concrete,drilled core method was applied to draw Ф 100mm concrete samples for compressive strength test,various factors influencing on tested results for concrete were determined by means of mathematical model,the related components of effective factor were calculated.Then,both of combined standard uncertainty and expanded uncertainty were determined.Finally,the report on tested compressive strength of concrete by drilled core was given.