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Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Fly Ash Facts for Highway Engineers

Fourth Edition

Technical Report Documentation Page
1. Report No.
FHWA-IF-03-019
2. Government Accession No. 3. Recipient's Catalog No.
4. Title and Subtitle

Fly Ash Facts for Highway Engineers
5. Report Date
06-13-2003
6. Performing Organization Code
HIPT
8. Performing Organization Report No.
7. Author(s)
American Coal Ash Association
9. Performing Organization Name and Address
American Coal Ash Association
15200 East Girard Avenue, Suite 3050
Aurora, CO 80014
10. Work Unit ( TRAIS)
 
11. Contract or Grant No.
DTFH61-02-X-00044
12. Sponsoring Agency Name and Address
Federal Highway Administration
1200 New Jersey Avenue SE
Washington, DC 20590
13. Type of Report and Period Covered
14. Sponsoring Agency Code
15. Supplementary Notes
FHWA Project Manager: Michael Rafalowski
16. Abstract
Coal fly ash is a coal combustion product that has numerous applications in highway construction. Since the first edition of "Fly Ash Facts for Highway Engineers" in 1986, the use of fly ash in highway construction has increased and new applications have been developed. This document provides basic technical information about the various uses of fly ash in highway construction that advance its use in ways that are technically sound, commercially competitive, and environmentally safe.
17. Key Words
Fly Ash, Coal Combustion Byproducts
18. Distribution Statement
No restrictions. This document is available to the public from the National Technical Information Service, Springfield, Virginia 22161
19. Security Classif. (of this report) Unclassified 20. Security Classif. (of this page)
Unclassified
21. No. of Pages
76
22. Price

Form DOT F 1700.7 (8-72) Reproduction of completed page authorized

Preface

Coal fly ash is a coal combustion product that has numerous applications in highway construction. Since the first edition of Fly Ash Facts for Highway Engineers in 1986, the use of fly ash in highway construction has increased and new applications have been developed. This document provides basic technical information about the various uses of fly ash in highway construction.

Fly ash has been used in roadways and interstate highways since the early 1950s. In 1974, the Federal Highway Administration encouraged the use of fly ash in concrete pavement with Notice N 5080.4, which urged states to allow partial substitution of fly ash for cement whenever feasible. In addition, in January 1983, the Environmental Protection Agency published federal comprehensive procurement guidelines for cement and concrete containing fly ash to encourage the utilization of fly ash and establish compliance deadlines.

This document is sponsored by the U.S. Department of Transportation, through the Federal Highway Administration, in cooperation with the American Coal Ash Association and the United States Environmental Protection Agency. The United States Government assumes no liability for its contents or use. The Federal Highway Administration endorses no products or manufacturers. This publication does not constitute a standard, specification, or regulation.

The United States Environmental Protection Agency supports the beneficial use of coal combustion products as an important priority and endorses efforts by the Federal Highway Administration as described in this document.

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Updated: 09/09/2015
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000