orient mineral refactories co.,ltd.

Refractory Material--------High Alumina Cement(Alumina Cement)

High Alumina Cement CA50-G7

Chemical composition
Al2O3	%	≥52,<60
SiO2		≤8.0
Fe2O3		≤2.5
CaO		≥33.0
Physical properties
fineness
0.045mm residue	%	-
Blaine	m²/kg	≥300
setting time
initial	min	≥30
final	h	≤6
Flexural strength
1d	Mpa	≥6.5
3d	Mpa	≥7.5
Compressive strength
1d	Mpa	≥50
3d	Mpa	≥60

Testing method

Chemical Composition:According with GB/T205 for "High Alumina Cement".

Blaine:According with GB/T8074 for "High Alumina Cement".

Fineness:According with GB/T1345 with screen of 0.045mm for "High Alumina Cement"..

Setting time:According with the addenda A of GB/TGB201-2000 for "High Alumina Cement".

Packing:

Adopted specified by GB9774 cement packing sack,25kg or 50kg in PE bag with a complex bag of woven plastic and kraft paper outside.Other kind of bags can be supplied according with the agreements of the buyer and the seller.

Note

Keep in dry conditions and prevent humidity during storage and transportation.Don't mix other variety of cements.