We Energies Coal Combustion Products ... - The White House

Table 2-5 shows the gradation of bottom ash from two We Energies power
plants. The gradation of bottom ash can vary widely based on the coal
pulverization and burning process in the power plant, the variety of coal
burned, and the bottom ash handling equipment.Table 2-6 gives typical
geotechnical properties of bottom ash produced from combustion of
bituminous coal. These values are based on research conducted in Australia
(8). Table 2-7 shows some geotechnical properties of bottom ash based on
studies performed in the United States (9).
Table 2-5: Gradation of Bottom Ash
% Passing
Sieve Size
MCPP
PPPP
3/4” 100.0 98.29
1/2” 96.2 94.3
#4 85.1 77.3
#8 74.4 59.0
#16 60.5 41.8
#30 47.2 27.7
#50 35.8 18.0
#100 26.9 10.4
#200 20.7 4.8
MCPP - Milwaukee County Power Plant
PPPP - Pleasant Prairie Power Plant
We Energies 20
Coal Combustion Products
Utilization Handbook s