Cementitious Spray Dryer Ash-Tire Fiber Material for Maximizing Waste Diversion
Table 1
Bulk chemical composition of rawhide power station SDA.
Compound
Sample 1 Content A (%)
Sample 2 Content B (%)
Sample 3 Content C (%)
ASTM C618 limit for Class C fly ash (2005)
ASTM C 618 limit for class F fly ash (2005)
Silicon dioxide, SiO2
39.76
29.84
Sum between 50 % and 70 %
Sum greater than 70 %
Aluminum oxide, Al2O3
14.31
14.24
Iron oxide, Fe2O3
5.56
5.82
SiO2 + Al2O3 + Fe2O3
59.63
49.90
60.63
Calcium oxide, CaO
23.45
26.48
Sulfur trioxide, SO3
6.19
10.01
3.70
5% maximum
5% maximum
Magnesium oxide, MgO
4.06
4.93
Sodium oxide, Na2O
1.42
1.66
Titanium dioxide, TiO2
1.15
0.98
Phosphorous pentoxide, P2O5
0.98
1.59
Barium oxide, BaO
0.61
0.68
Potassium oxide, K2O
0.53
0.48
Strontium oxide, SrO
0.33
0.42
Manganese dioxide, MnO2
<0.01
0.02
Moisture
1.86
1.04
1.33
3% maximum
3% maximum
Loss on ignition
1.65
2.85
1.64
6% maximum
6% maximum
A: sampled 4/3/2007 and tested by SGS North America, Inc., Denver, Colo, USA. B: sampled 7/26/2007 and tested by Wyoming Analytical Laboratories, Inc., Golden, Colo, USA. C: reported in Little, 2008 [10].
