THE COMPOSITION OF HYDRAULIC CEMENT

摘要

High-strength hydraulic cement has the following composition: blast furnace slag (60-85%), anhydrous or bihydrous gypsum (5-15%), pozzolan matter (6-12%), calcium hydroxide (2-10%), portland cement clinker or portland cement (1-6%), and siliceous fluorides (0.5-3%). The compositions are ground finely at 2500-4600 cm2/gr, and mixed. This hydraulic cement does not need a sintering process because it uses blast furnace slag as a raw material.