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工业、民用建筑和水工建筑物的砼结构,对砼抗压强度所使用的符号目前尚未统一,而施工人员对各种符号间的关系不甚明确,造成一定的误解,影响砼的质量检查。为此,有必要提醒施工人员注意这个问题。一、砼强度等级标准砼强度等级,对于水工砼,目前仍用砼试块的抗压极限强度来表示,以公斤/厘米~2计,砼标号分为R75、R100、R150、R200
The symbol used for the compressive strength of industrial, civil buildings and hydraulic structures is not yet unified, and the relationship between construction personnel and various symbols is not clear, causing some misunderstanding and affecting the quality inspection of the concrete. . To this end, it is necessary to remind construction workers to pay attention to this issue. First, the strength level of the standard 砼 strength level, for the hydraulic rake, is still used 砼 test block the ultimate compressive strength to represent, in kg / cm ~ 2 砼 砼 label is divided into R75, R100, R150, R200