摘要
研究了粉煤灰、矿渣和硅灰掺合料对大流动性高强轻集料混凝土性能影响。测试结果表明:在单掺情况下,矿渣和硅灰能有效地提高拌合物的粘聚性,从而改善了混凝土早期和后期强度,但对拌合物流动性有一定影响,掺加粉煤灰能有效提高流动性,但产生泌水对拌合物匀质性有不良影响。综合流动性和强度改善效果,复合掺加矿渣和粉煤灰对配制大流动性高强轻集料混凝土效果最佳。
The effects of mineral admixtures including fly ash （FA）, blast - furnaced slag （BS） and silica fume （SF） on workable high strength lightweight concrete were investigated. The results showed that both BS and SF can effectively improve the bonding of the mixtures, and then improve the concrete strength at both early and late age; however, both of them can affect the workability of the mixtures, FA can greatly improve the workability of the mixture; however, associated bleeding deteriorates the homogeneity of the mixture. Combining FA and BS provides the optimum HSLC with good workability and strength.
出处
《混凝土》
CAS
CSCD
北大核心
2005年第11期52-55,共4页
Concrete
关键词
粉煤灰
矿渣
微硅粉
轻集料混凝土
Fly Ash（FA）
Blast-furnaced Slag（BS）
Silica Fume（SF）
lightweight concrete
