摘要
研究了等量取代法及超量取代法配制的三种粉煤灰掺量 (10 %、15 %、15 %k =1 5 )的防冻剂混凝土在变负温和恒负温养护下的抗压强度发展规律及抗冻性 ,表明双掺粉煤灰和高效防冻剂可以使负温混凝土具有良好的强度发展和更加优异的耐久性 ,完全满足混凝土冬季施工。变负温养护的混凝土强度发展及耐久性均优于恒负温养护的混凝土。
In this paper,the strength development and the frost-resistance of the concretes with antifreezing admixfure and three dosages(10%,15%,15%k=1 5) of fly-ash cured in varied minus-temperature and constant minustemperature were studied.It showed that mixing fly-ash and antifreezing admixture can lead to good strength development and durability of the minus-temperature concrete.The strength development and durability of the concrete cured in varied minus temperature are better than those of the concrete cured in constant minus temperature.
出处
《低温建筑技术》
2001年第3期8-10,共3页
Low Temperature Architecture Technology
基金
国家自然科学基金资助项目 ( 5 0 0 780 19)
关键词
粉煤灰
防冻剂
负温混凝土
强度
耐久性
Fly-ash,Antifreezing admixture Minus-temperature concrete,Strength,Durability
