Civil Engineering Reference
In-Depth Information
Table 2.8
Chemical composition of some steel slag described as steel slag or steel making slag and steel mill scale
Author
Faraone et al.
(
2009
)
Al-Negheimish et al.
(
1997
)
Chen et al. (
2007
)
Maslehuddinn et al.
(
2003
)
Qasrawi et al.
(2009)
Al-Otaibi
(
2008
)
Country
Italy
Saudi Arabia
PR China
Saudi Arabia
Jordan
Kuwait
Type
Steel slag
Steel making slag (EAF-
slag)
Steel slag
Steel slag
Unprocessed steel
slag
Steel mill scale
SiO
2
(%)
13.2
17.43
13.40
1.00
0.80
1.37
Al
2
O
3
(%)
6.80
7.85
1.04
nr
nr
0.10
Fe and/or Fe
x
O
y
(%)
Fe
x
O
y
= 9.80
Total Fe = 20.09
FeO = 18.33
FeO = 18.98
Fe
x
O
y
= 8.45
Fe
x
O
y
= 89.0
Fe
x
O
y
= 97.05
Fe
x
O
y
= 94.61
CaO (%)
37.9
30.53
51.51
CaCO
3
= 10
0.40
0.11
MnO (%)
13.5
2.66
1.65
1.07
1.03
MgO (%)
11.9
13.19
3.45
0.40
0.03
Basicity:
(CaO ? MgO)/
(Al
2
O
3
? SiO
2
)
2.49
1.73
3.81
-
-
-
nr not reported
