摘要
通过在石灰石粉与低品质粉煤灰双掺绿色混凝土中掺加引气剂,使新拌混凝土的含气量在3%-5%之间,研究了含气量对此类混凝土的长期抗压强度、抗冻性能和抗氯离子渗透性能的影响。结果表明,引气剂的掺入使得石灰石粉与低品质粉煤灰双掺绿色混凝土的长期抗压强度有所降低,但可以明显提高此类混凝土的抗冻性能,而对此类混凝土的抗氯离子渗透性能影响不大。
Through mixing air entraining agent, the air content of fresh concrete with limestone powder and low- quality fly ash is between 3% to 5%. The influences of air content on the long-term compressive strength, frost resistance and the ability to resist chloride ion penetration of green concrete are researched. The results show that the air entraining agent makes concrete,s long-term compressive strength reduce, but it can obviously improve the frost resistance of green concrete, and it has little effect on the ability to resist chloride ion penetration of concrete.
出处
《混凝土与水泥制品》
北大核心
2013年第5期85-87,共3页
China Concrete and Cement Products
基金
国家自然科学基金项目(51278164)
唐山市科技计划项目(12140208A-1)
关键词
石灰石粉
低品质粉煤灰
绿色混凝土
含气量
双掺
Limestone powder
Low-quality fly ash
Green concrete
Air content
Double mixed
