摘要
通过测定相对动弹性模量和质量损失研究掺矿渣微粉的高性能混凝土的抗冻性,分析矿渣微粉的掺量对混凝土的塌落度、强度以及抗冻性的影响并且对掺加抗冻剂和不掺抗冻剂混凝土的抗冻性能进行对比分析。结果表明:矿粉的掺加可以显著提高混凝土的塌落度;过多掺入矿粉对混凝土早期强度具有负面的影响;抗冻剂可显著提高混凝土的抗冻性能。
By measuring the relative dynamic elastic modulus and quality loss, the frost resistance is studied for concrete mixed with ground granulated blast furnace slag （GGBS）. The effect of GGBS content on the slump, strength and frost resistance of concrete are analyzed, and comparative studying on the freeze-thaw resistance of concrete mixed with frost- resisting admixture and no frost-resisting admixture is analyzed. The results indicates the slump of the concrete increases with the increase of GGBS content; excessive mixing GGBS has a negative effect on early strength of the concrete and frost- resisting admixture can greatly improve freeze-thaw resistance of concrete.
出处
《煤炭工程》
北大核心
2016年第8期125-127,共3页
Coal Engineering
基金
河北省住房和城乡建设厅科研项目"绿色高性能混凝土的性能研究"(2006-215)
关键词
矿渣微粉
抗冻性
高性能混凝土
相对动弹性模量
质量损失
GGBS
frost resistance
high performance concrete
relative dynamic elastic modulus
quality loss
