Rice University engineers have developed a composite binder made primarily of fly ash that can wholly replace portland cement in concrete to make the end product both high-strength and more environmentally friendly.
Montana State University researchers are using fly ash to develop a more affordable ultra-high performance concrete that could help reduce maintenance costs on the state’s bridges and roadway infrastructure.
Engineers have developed a high-density polyethylene plastic incorporating fly ash that can be used to 3D print syntactic foam components, extremely strong and lightweight parts used in vehicles, airplanes, and ships.
Fifty-six percent of the coal ash produced in the U.S. in 2016 was recycled—establishing a new record and marking the second consecutive year that more than half of the coal ash produced was beneficially used rather than disposed.
A new mile-long, four-lane segmental concrete bridge spanning the Saint Croix River incorporates fly ash in its high-performance mix to achieve the required high early strength, durability, and workability.