《混凝土强度检验评定标准》(GBJ107-87)自1988年3月1日正式施行以来,已有7年多了,现在仍有一部分工程技术人员对此《标准》有些概念的理解模糊不清,影响了《标准》执行的准确性。现把几个概念介绍如下。一、强度代表值、标准值和强度等级新标准实施以后,仍有一部分图纸按原标准设计。混凝土标号和强度等级之间可按表1进行换算。 It has been more than seven years since the “GBJ107-87” (Concrete Strength Inspection and Evaluation Standard) was formally implemented on March 1, 1988. There are still some engineers and technicians who are ambiguous about the understanding of some concepts of the Standard. Affected the accuracy of the “standard” implementation. Several concepts are described below. First, after the implementation of the new standard of intensity representative value, standard value and strength grade, there are still some drawings designed according to the original standard. The concrete grade and strength grade can be converted according to Table 1.