摘要
由于机制砂和天然砂特性的不确定性,二者的掺配比例是决定混凝土技术特性的关键问题。文章基于机制砂和天然细砂的技术参数分析,提出了混合砂掺配比例的计算方法。按照此比例掺配的混合砂应用在混凝土中,能够保证混凝土拌合物和易性良好,硬化后的混凝土强度和耐久性符合技术要求。
Because of the uncertainty of the artificial sand and natural sand,mixing ratio of the mixed sand is the key to decide the technical characteristic of the concrete.Based on the analysis of technical parameters of artificial sand and natural sand,we raised a method of the proportion of mixed sand mixing.Ratio mixing in accordance with this mix of sand and used in concrete can make the workability of concrete mixture well,strength and durability of hardened concrete meet the technical requirements.
出处
《企业技术开发》
2010年第8期85-86,共2页
Technological Development of Enterprise
基金
浙江省教育厅科研计划项目(Y200909171)
关键词
混合砂
掺配比例
颗粒级配
和易性
强度
mixed sand
mixing ratio
particle size distribution
workability
strength
