ABSTRACT
Abstract The present paper reports on investigations made into a cement very rich in granulated blast-furnace slag (>75% granulated blast-furnace slag) and chemically activated by sulphates: supersulphated cement. The frost and frost-deicing salt resistance of supersulphated cement concrete is very low. Tests have shown that just as with blastfurnace cement concrete the carbonation of siupersulphated cement concrete leads to a coarser microstructure and to the formation of metastable CaCO3 modifications. Due to the strong tendency of ettringite towards carbonation the rate of carbonation is, however, even higher than that of blast-furnace cement concrete.
