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苏联建筑材料工业部批准了《硅酸盐砖与蒸压混凝土制品生产用砂》部颁标准(OCT2l—1—72)。该标准自1973年1月1日开始实行。在标准中规定了为制作硅酸盐砖、重硅酸盐混凝土与多孔硅酸盐混凝土制品用的天然石英砂及方解石质石英砂的技术标准与试验方法,并根据砂的用途不同,详细制定了性能指标。对于用作胶结料组分的砂子(译者注:以下简称磨细砂),较用作骨料的砂子(译者
The Ministry of Building Materials Industry of the Soviet Union has approved the “Standard for the Production of Silicate Bricks and Autoclaved Sand” (OCT21-72). The standard has been implemented since January 1, 1973. In the standard, the technical standards and test methods for the production of natural quartz sand and calcite quartz sand for the production of silicate bricks, heavy silicate concrete and porous silicate concrete products are specified, and detailed specifications are made according to the use of sand. Performance indicators. For sand that is used as a binder component, it is used as a sand for aggregates (Translators)