Made from high iron bauxite and limestone of high quality through smelting in electric furnace, cooling and then grinding.
Specification:
Chemical composition%
Al2O3 37.0
SiO2 6.0
Fe2O3 18.0

Physical properties
Fineness
Blaine m2/kg 270
Setting time
Initial min 40
Final h 3
Flexural strength Mpa
6h 4.0
1d 5.5
3d 6.5
Compressive strength Mpa
6h 30
1d 50
3d 60

Character & uses:
1. Without free calcium oxide.
2. Main phase is CA.
3. Used as coagulant in Portland cement to accelerate hardening and to shorten time for a project.
4. Used to confect self-leveling screed. (Self-leveling Screed is composed of cement-based cementation material, aggregate, filling and additives. It has fluidity under the state of mixing newly. Or spread out complementarily and it can flow and make screed by itself.)
5. Used to make quickly drying and quickly hardening ground.
6. Used as ceramic adhesive.
7. Used for quick hardening and high strength mortar.