Effects of aluminate rich slag on compressive strength, drying shrinkage and microstructure of blast furnace slag cement

摘要

Aluminate rich steel slag (ARS) is a by-product of the steelmaking process. ARS contains high contents of Al2O3 and CaO and is mainly composed of C(12)A(7) and C(3)A. This work investigated the effects of ARS and gypsum on the mechanical and chemical properties of blast furnace slag cement. The compressive strength, drying shrinkage, hydration and microstructure characteristics of blast furnace slag cement were investigated based on the addition of different percentages of ARS and gypsum.