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Fly Ash Facts for Highway Engineers

Mark P. Rossow, Ph.D, PE Retired

Coal fly ash is a coal combustion product that has numerous applications in highway construction. Fly ash has been used in roadways and interstate highways since the early 1950s. In 1974, the Federal Highway Administration issued an official notice which urged states to allow partial substitution of fly ash for cement whenever feasible. In addition, to encourage the use of fly ash the Environmental Protection Agency published federal procurement guidelines for cement and concrete containing fly ash. The present course provides basic technical information for highway engineers who want to learn about the advantages of fly ash as originally envisioned by the FHWA and the EPA and as borne out by the subsequent experience of other engineers involved in highway construction.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

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NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.