TerraNova is a wholesale supplier of Fly Ash with distribution capabilities within the US and located in Houston, Texas.
Fly ash is a fine powder that's a byproduct of burning pulverized coal in coal-fired power plants. It's made up of spherical silt-sized particles that are usually between 10 and 100 microns in size. Fly ash is collected from exhaust gases using electrostatic precipitators or bag filters.
The United States produces nearly 50 million tons of fly ash annually, making it one of the country's largest industrial waste streams. Fly ash is a combustion byproduct left over after burning coal, petroleum coke, residual fuel oil, or wood. It's collected before leaving the stack using electrostatic precipitators, bag houses, or other methods.
Fly ash is used in many engineering applications, including:
Fly ash improves concrete's strength, workability, water demand, shrinkage, and permeability. It reacts with calcium hydroxide to form cementitious products that can be added to concrete as a separate batch or as part of blended cement. However, fly ash can also cause concrete to take longer to dry and set, and it may need air-entraining admixtures in cold climates.
Fly ash can also be used in soil and road base stabilization, flowable fills, grouts, structural fill, and asphalt filler.
Fly ash is not considered a hazardous waste under the EPA's Resource Conservation and Recovery Act (RCRA), but it should be disposed of safely in accordance with EPA regulations.
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