A Closer Look: Fly Ash, Slag Cement & Metakaolin
Editor’s Note: This is the first article in a year-long series explaining common raw materials used […]
Fly Ash Trends Downward
With energy trends resulting in a move away from coal-fired plants, fly ash availability has been […]
SCMs in Concrete
By Kayla Hanson, P.E. Editor’s Note: This is the first of a two-part series detailing the […]
Questions from the Field
Questions from the Field is a selection of questions NPCA Technical Services engineers received from calls, […]
Material Matters: Fly Ash
Fly ash is used to improve the durability and quality of precast concrete products. By Debbie […]
Portland-Limestone Cement
By Claude Goguen, P.E., LEED AP When bricklayer Joseph Aspdin burned powdered limestone and clay in […]
Sense and Sensibility
By Brent Dezember | Chairman, National Precast Concrete Association The U.S. Environmental Protection Agency (EPA) showed […]
The Future of Fly Ash Use in Concrete
By Sue McCraven Most people on the street have no idea what fly ash is or […]
The Future of Fly Ash Use in Concrete
By Sue McCraven Most people on the street have no idea what fly ash is or […]
If You Use Fly Ash In Your Mix, You Need to Read This!
Many precasters have discovered the benefits of using fly ash in their mix designs. Fly ash is a cementitious material that enhances concrete’s workability, strength and durability, and it often provides a cost savings over using portland cement alone. But it’s also good for the environment. Using fly ash can be win-win-win.
Fly Ash and the EPA
Fly ash is a pozzolan and is by far the most widely used supplementary cementitious material in the manufactured concrete products industry because of its low cost, wide availability and concrete property-enhancing characteristics. It is also considered a sustainable practice to use fly ash. The U.S. Green Building Council recognizes fly ash as a pre-consumer recycled material – a beneficial strategy for CO2 reduction.
Fly Ash – A Hazardous Material?
Fly Ash - A Hazardous Material? By now, you have probably heard of the controversy brewing about the U.S. Environmental Protection Agency’s (EPA) reclassification of fly ash, a coal combustion byproduct, that would make it a hazardous material. So, why does this matter and what are the facts?
