ULTRALOW EXOTHERM TYPE B-TYPE BLAST FURNACE CEMENT

摘要

PURPOSE:To provide the subject ultralow exotherm type cement capable of remarkably reducing the exotherm being accompanied with curing and of preventing reduction of durability of its cured concrete. CONSTITUTION:Cement is prepared by blending 15 to 30wt.% alite component with 50 to 75wt.% belite component, =4wt.% C3A and 6 to 18wt.% C4AF an admixing gypsum with the resultant cement clinker. To 40 to 60wt.% the obtained cement, 60 to 40wt.% blast furnace slag powder is added, thus producing the objecting ultralow exotherm type B-type blast furnace cement.