Technical properities:
|
Item
|
Unit
|
Fine-grained
|
Mid-thick
|
Thick structure
|
|
Max. Grain size
|
mm
|
0.8
|
2
|
4
|
|
Specific resistance
|
u?m
|
<=8.5
|
<=9
|
<=10
|
|
Bulk density
|
g/cm3
|
>=1.72
|
>=1.68
|
>=1.62
|
|
Compressive strength
|
Mpa
|
>=35
|
>=30
|
>=28
|
|
Flexural strength
|
Mpa
|
>=14.5
|
>=13.5
|
>=8
|
|
Ash content
|
%
|
<=0.2
|
<=0.3
|
<=0.3
|
|
C.T.E
|
10-6/c
|
<=2.5
|
<=2.3
|
<=4
|