根据复掺粉煤灰矿粉混凝土泵送成型的、大型实体结构试验模型的墙体上所取高径比为1的100、75、55芯样强度数据,本文分析芯样抗压强度的尺寸效应与小芯样检测复掺粉煤灰矿粉混凝土强度的可靠性;采用均值与最小二乘法线性回归两种统计方法,分别给出小芯样与标准芯样间的强度换算关系;对两种方法进行比较分析,给出小芯样与标准芯样间的强度换算取值建议;同时对不同取芯部位所得到的结构混凝土强度的差异进行初步研究。 According to 100,75,55 core-like strength data of 1, 75, 75 core samples taken from the wall of the test model of large-scale solid structure, the size of compressive strength of core sample is analyzed in this paper, Effect and small core sample to detect the strength of concrete mixed with fly ash and slag; two statistical methods of average and least squares linear regression were used to calculate the intensity conversion between small core sample and standard core sample respectively; Kinds of methods for comparative analysis of small cores and standard core sample is given the value of the proposed value conversion; the same time different core parts of the structural strength of the concrete obtained a preliminary study.