摘要
本文结合粉煤灰和硅灰单掺时的优点,试验研究了将两种掺合料复掺后对混凝土抗氯离子渗透性能的影响。试验结果表明:掺5%硅灰(SF)和30%粉煤灰(FA)时,对混凝土的抗氯离子渗透性改善最大,28d、90d和180d三个龄期的改善幅度分别为49%、45%和38%,明显优于单掺FA与SF的混凝土。
The influences of fly ash （FA） and silica fume （SF） or mixtures of FA and SF on concrete re- sistance to chloride-ion permeability were investigated in this paper. The results showed that the concrete resis- tance to chloride-ion permeability was improved when concrete blended with 5% SF and 30% FA.In this sit- uation, the improvement degree was larger than the ones that only FA or SF was incorporated. The improvement degrees were 49% ,45% and 38% in the age of 28d,90d and 180d respectively.
出处
《低温建筑技术》
2010年第3期7-9,共3页
Low Temperature Architecture Technology
基金
西部交通(2009ZB01)
"863"(2009AA03Z508)
国家自然科学基金(60672166)联合资助
关键词
混凝土
粉煤灰
硅灰
抗氯离子渗透性能
concrete
fly ash
silica fume
resistance to chloride-ion permeability
作者简介
郭春兴（1985-），男，山西临汾人，硕士研究生，研究方向：路面材料。
