混凝土试件按其养护方法可分为标准养护和同条件养护两种,因此混凝土强度也分为标准养护强度和同条件养护强度。前者简称为标准强度,后者简体为施工强度,两者在取样、养护、强度评定方法及强度评定目的等方面都有很大不同,应注意其差异,以免混淆。 一、取样数量不同 尺寸相同的标养试件和同条件养护试件都是在混凝土浇筑地点随机抽样制作。按我国现行规范规定,标养试件每次至少留一组,而同条件养护的试件 Concrete specimens can be divided into standard maintenance and the same conditions of conservation according to their conservation methods, so the concrete strength is also divided into standard curing strength and the same condition curing strength. The former is referred to as the standard strength, and the latter is simplified as the construction strength. The two are very different in sampling, maintenance, strength assessment methods and strength assessment purposes, and attention should be paid to the differences to avoid confusion. First, the number of samples The same size of the standard sample and the same conditions of conservation samples are placed in the concrete sampling place. According to the regulations of China’s current regulations, at least one set of specimens for standardization and maintenance shall be kept at a time, while specimens for the same conditions shall be maintained.