Investigative Asphaltic Concrete Design Using Coal-Fired Power Plant Bottom Ash

Award Information
Agency: Department of Agriculture
Branch: N/A
Contract: 2001-33610-11095
Agency Tracking Number: 2001-03290
Amount: $0.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
P. O. Box 4098, Gillette, WY, 82717
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 James Murphy
 (307) 686-6409
Business Contact
 James Murphy
Title: President
Phone: (307) 686-6409
Research Institution
A major concern for coal-fired power plants throughout the nation is disposal of bottom ash. This by- product of coal combustion is produced in large quantities and disposal is costly. Presently bottom ash is disposed of in landfills throughout the nation. Landfilling is not an efficient and environmentally feasible method of disposal. Phase I - Laboratory research utilizing bottom ash as a fine aggregate in asphaltic concrete has previously been conducted indicating excellent long-term stability, durability and constructability of asphaltic concrete using locally produced bottom ash. All Phase I goals and objectives were met. The proposed program is directed at demonstrating the feasibility of using bottom ash as a fine aggregate in an asphaltic concrete pavement under actual environmental and traffic loading conditions. The projected location of the pavement is an urban street supplied by a local municipality. Utilization of bottom ash as fine aggregate is particularly important in northeastern Wyoming where suitable aggregates for all types of pavements must be transported a minimum of 80 miles for quarries. The transport of this material is costly which limits pavement maintenance and new road construction for rural isolated communities. Bottom ash is produced locally providing a much needed aggregate source.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government