This study describes properties of concrete with ground granulated blast furnace slag to 30000cm2/g in specific surface area. 2 types of standardized slag of 4000 and 8000 cm2/g in specific surface area and 3 types of much finer slag within the range from 11000 to 30000 cm2/g in specific surface area were used in this study. Properties of concrete with these slags were experimentally investigated, changing the replacement ratios for cement.
Influences of the specific surface area of the slag and replacement ratio on the concrete properties, bleeding, setting, compressive strength, drying shrinkage, resistance to chemical attack and resistance to freezing and thawing, were clarified.
