摘要
外加剂的掺入是影响自密实混凝土工作性的一个主要因素。基于自密实混凝土（SCC）配合比的基本理论，研究无收缩外加剂ZM掺量对自密实混凝土工作性的影响，确定适合水利封堵工程混凝土的无收缩外加剂最佳的掺量。试验结果和实际工程应用表明：ZM的减水效果随掺量的增加而增加，且其减水剂饱和点为16％～18％；外掺ZM掺量14％～16％时，自密实混凝土具有较好的力学性能和工作性能。
The addition of additives is a main factor influencing the workability of self-compacting concrete.Based on laboratory tests, the effects of non-shrinkage additives＇ ZM content on the performance of self-compactingconcrete for different mixture ratios are studied.Test results show that the water-reducing efficiency improves with theincrease of ZM content.The saturation point of water-reducing of ZM content is within the range of 16% to 18%. Themechanical property and concrete performance of SCC are optimal when the ZM content is between 14% and 16%.
出处
《水运工程》
北大核心
2016年第8期18-21,共4页
Port & Waterway Engineering
关键词
外加剂掺量
自密实混凝土
力学性能
工作性能
additives content
self-compaction concrete
mechanical property
performance
