high alumina cement

The technical index of refractory high-aluminacement : The index of Aluminate cement Aluminate cement CA40-Fused CA50-J5 CA50-J6 CA50-J7 CA50-N CA50-J9 CA50-Fused Blaine (cm2/g) 2700 3000 3000 3000 3000 4000 4000 Initial time(h:m) 0:40 0:30 0:30 0:30 0:30 1:30 2:00 Final time(h:m) 4:00 6:00 6:00 6:00 6:00 6:00 6:00 Flexural strength(Mpa) 6hrs4.0 4.0 1 day 5.5 5.5 6.0 6.5 6.0 8.0 10.0 3 days 6.5 6.5 7.0 7.5 7.0 10.0 11.0 Compressive strength 6hrs30.0 35.0 1 day 50.0 40.0 45.0 50.0 50.0 70.0 75.0 3 days 60.0 50.0 55.0 60.0 60.0 80.0 85.0 Chemical composition SiO2 % 6.0 8.0 8.0 8.0 6.5 6.0 5.0 Al2O3 % 37.0 50.0 50.0 51.0 50.0 53.0 50.0 CaO % 38.0 33.0 33.0 33.0 33.0 33.5 38.0 MgO % 1.5 1.5 1.5 1.5 1.5 1.5 1.5 TiO2 % 3.0 3.0 3.0 3.0 3.0 3.0 3.0 Fe2O3 % 18.0 3.0 3.0 2.5 3.0 2.5 50.0