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有人认为,水泥28天抗压、抗折强度符合标准要求,就是水泥符合相应标号的要求;也有人认为,各龄期的水泥强度都符合标准,才能说符合相应的标号。有人把水泥标号与水泥强度混淆了,把它们作为同义语,在一些技术报告、文章中相互代用。在《GB5947—86水泥定义和名词术语》中,对水泥标号的定义为:根据水泥强度的高低划分水泥产品质量的等级。对于我国大量生产的硅酸盐水泥、普通硅酸盐水泥、矿渣硅酸盐水泥、火山灰质硅酸盐水泥等,是以28天龄
Some people think that the 28 days of cement compressive strength, flexural strength meet the standard requirements, that is, cement meets the requirements of the corresponding label; Others believe that the cement strength of all ages are in line with standards, can be said to comply with the corresponding label. Some people have confused cement labels with cement strength, using them as synonymous words and replacing them with each other in technical reports and articles. In the “GB5947-86 Cement Definition and Noun Term,” the cement label is defined as the classification of cement product quality according to the strength of the cement. For China’s mass production of Portland cement, ordinary portland cement, slag portland cement, pozzolanic Portland cement, etc., is 28 days old