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1 概述在建筑施工的过程中,对混凝土配合比产生怀疑时、或对施工所用材料的比例产生怀疑时、或怀疑所用水泥受环境影响可能变质,或天气的原因对混凝土强度表示怀疑时、或制作的混凝土试块缺失时,都需要对建筑物进行无损检测,以作为处理混凝土质量问题的依据。作为一种操作简单的混凝土强度非破损检测方法,回弹法在工程质量检测中发挥了极大的作用。检测的一般规定:①对每一个构件的测区数应不少于10个,其面积不宜大于0.04m~2;②测区应选在使回弹仪处于水平方向检测混凝土浇筑
1 General In case of any doubt as to the mix ratio of concrete or the proportion of materials used in the construction, or in the doubt that the cement used may be deteriorated by the environment, or when the weather is in doubt about the concrete strength, or In the absence of concrete test blocks, non-destructive testing of the building is required as a basis for handling the quality of the concrete. As a simple method of non-destructive testing of concrete strength, the rebound method plays a very important role in engineering quality inspection. The general provisions of the test: ① For each component of the test area should be not less than 10, the area should not be greater than 0.04m ~ 2; ② measuring area should be selected in the horizontal direction of the rebound instrument to detect concrete pouring