Coal Ash Beneficial Use at 58 Percent In 2018, the United States used more than it disposed for the fourth consecutive year.
Read about ACAA's annual production and use survey results »
at Work
The latest edition of the magazine
is available online now »
Controlled Low-Strength Material ACAA-commissioned risk evaluation finds coal fly ash based flowable fill safe in common applications. » ACAA has submitted the following report to ASTM International and is requesting elimination of the C 618 requirement for autoclave testing for soundness » Join us at the ACAA 2022 Winter Meeting in Clearwater Beach, Florida »


2022 Winter Membership Meeting
February 8 and 9, 2022



ACAA members can now catch up on recordings of committee conference calls.



The Ash Library website is the proceedings repository for all papers presented at WOCA. »

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Who We Are

The American Coal Ash Association, established in 1968, is a nonprofit trade association devoted to recycling the materials created when we burn coal to generate electricity. Our members comprise the world’s foremost experts on coal ash (fly ash and bottom ash), and boiler slagflue gas desulfurization gypsum (FGD or “synthetic” gypsum), and other flue gas materials captured by emissions controls.

Mission Statement

The Mission of the American Coal Ash Association is to advance the management and use of coal combustion products in ways that are environmentally responsible, technically sound, commercially competitive, and supportive of a sustainable global community.

ACAA Member Benefits

Membership in ACAA provides support for the development, implementation, and continuation of effective programs for the management and use of CCPs. There are numerous benefits for coal-burning electric utilities resulting from the use of CCPs in lieu of disposal. In addition to avoiding disposal costs and creating revenue, added benefits come from public and government recognition of the utility as a supporter of sound policies for recycling and sustainable development. ACAA members share a common interest in using CCPs as valuable products to enhance revenues, minimize disposal costs, reduce liability, and support environmental policies. ACAA members are active at national, regional, state, and local levels.

Be Part of a Unified Industry Voice

Participate in Information Exchange and Networking

Join Us for Educational Opportunities and Professional Growth

Advance Your Market Awareness and Development

Beneficial Use of Coal Combustion Products

Fly ash use in concrete increased slightly in 2019, while the overall coal ash recycling rate declined.

Contact Us

1616 17th St., Suite 266
Denver, CO 80202

phone: (720) 870-7897
e-mail: [email protected]