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Pavements

Fly Ash Facts for Highway Engineers

Text for Figure 1-1

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Box 1 - Coal Source
Box 2 - Coal Pulverizer
Box 3 - Boiler
Box 4 - Electrostatic Precipitator or baghouse
Box 5 - Transfer system
Box 6 - Fly Ash Silo Dry Storage
Box 7 - Dry Fly ash Utilization
Box 8 - Conditioned Fly ash to Utilization or disposal
Box 9 - Pond
Box 10 - Ponded ash Excavated and stockpiled
Box 11 - Utilization

Box 1 to Box 2
Box 2 to Box 3
Box 3 to Box 4
Box 4 to Box 5
If dry ash go from Box 5 to Box 6 - Condition Fly Ash to Utilization or Disposal
If wet ash go from Box 5 to Box 9- Condition Fly Ash to Utilization or Disposal
Box 6 to Box 7 or Box 8
Box 8 to Box 9
Box 9 to Box 10
Box 10 to Box 11

More Information

Contact

Mike Rafalowski
Office of Asset Management, Pavements, and Construction
202-366-1571
E-mail Mike

 
 
Updated: 04/07/2011
 

FHWA
United States Department of Transportation - Federal Highway Administration