Civil Engineering Reference
In-Depth Information
Table 2.6
Chemical compositions of LDF-slags
Author
Setien et al. (
2009
)
Tossavainen et al. (
2007
)
Shi and Qian
(
2000
)
Rodriguez et al.
(
2009
)
Country
Spain
Sweden
PR China
Spain
Type
1
2
3
LDF slag
LDF-slag fines
LDF-slag
SiO
2
(%)
15.0
19.8
12.6
14.2
26.4-26.9
17
Al
2
O
3
(%)
12.5
4.3
18.6
22.9
4.3-5.2
11
Fe and Fe
x
O
y
(%)
Fe
2
O
3
= 2.1
Fe
2
O
3
= 3.3
Fe
2
O
3
= 1.6
Fe
2
O
3
= 1.1 FeO = 0.5
Fe = 0.4
Fe
2
O
3
= 1.0-1.6
nr
CaO (%)
55.0
57.5
50.5
42.5
56.6-57.0
56
MnO (%)
0.36
0.42
0.52
0.2
0.5-1.0
MgO (%)
7.5
11.6
11.9
12.6
3.2-4.2
10
Free lime (%)
19.0
3.5
9.5
nr
nr
nr
Free MgO (%)
3.0
10.0
8.0
nr
nr
nr
Basicity: (CaO ? MgO)/
(Al
2
O
3
? SiO
2
)
2.27
2.87
2.00
1.49
1.93
2.36
nr not reported
