论文部分内容阅读
混凝土强度控制标准的过宽或者过严,都直接关系到工程质量、工程经济、以及水泥用量。因此,它一直是混凝土施工规范主要的也是有争议的条文之一。1963年原水电部颁发的《水工建筑物混凝土及钢筋混凝土工程施工技术暂行规范》,关于这方面的条文,在保留强度合格率方法的同时,提出强度保证率的方法,在混凝土质量控制中应用了数理统计方法,从而把质量管理水平提高了一步。但是随着抽样检验理论的发展,国内外的混凝土强度控制标准也都
Concrete strength control standard is too wide or too strict, are directly related to project quality, engineering economy, and the amount of cement. Therefore, it has been one of the major and controversial provisions of the concrete construction code. In 1963, the Ministry of Water and Electricity issued the “Provisional Regulations on Construction Techniques of Concrete Structures for Hydraulic Structures and Reinforced Concrete Structures”, in which the method of preserving strength and passing rate is put forward. The method of strength guarantee rate is put forward in concrete quality control Applied mathematical statistics to improve the quality management level. However, with the development of sampling test theory, both domestic and international concrete strength control standards are