中国与俄罗斯水泥标准的对比分析

摘要

In order to understand the differences between China and Russia in cement performance,the cement standards of China and Russia from the aspects of composition,physical and mechanical properties,chemical index and environmental performance were compared in this paper.The results show that the main components of cement in China and Russia are basically the same,but the content of admixture mixed into cement is different.China and Russia both use the compressive strength of cement at the age of 28 d to determine the strength grade of cement and have the requirements for early strength of cement,but the two countries have different ages and requirement values for early strength of cement.China and Russia set the chemical index of cement projects are basically the same,but the specif ic limits of chemical indexes are different.The cement standard of Russia stipulates the limit of natural radionuclides in cement.The cement standard of China does not stipulate this index,but the national standard GB 6566—2010 Limit of radionuclides in building materials stipulates the limit of natural radionuclides in building materials.%为了深入了解中俄两国水泥性能的差异,本文从组成成分、物理力学性能、化学指标、环保性能等方面对比了中俄两国水泥规范.结果表明:中俄两国水泥的主要组成成分基本相同,但掺入水泥中混合材料的掺量不同;中俄两国规范均采用水泥的28 d抗压强度来确定其强度等级,且对水泥的早期强度有要求,但两国规范对水泥早期强度的表征龄期和要求值不同;中俄两国规范中关于水泥的化学指标基本相同,但具体限值不同;俄罗斯水泥规范规定了水泥中天然放射性核素限量,中国水泥规范未规定该指标,但中国规范GB 6566—2010《建筑材料放射性核素限量》规定了建筑材料的天然放射性核素限量.