Effects of Mineral Admixtures on Early Age and Drying Shrinkage of C100 High Strength Concrete

Effects of category and dosage of mineral admixtures on the early age and drying shrinkage of C100 high strength concrete with mixing condition are investigated.The results indicate that the early age and drying shrinkage will decrease with the increase dosage of fly ash,and the effect on reducing early age shrinkage is better than that of reducing drying shrinkage.The early age shrinkage will increase and the drying shrinkage will decrease when the dosage of ground granulated blast furnace slag increases.Silica fume can increase the early age and drying shrinkage of concrete,and the effect will be more obvious when the increasing dosage of silica fume.