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Fly Ash - Making Concrete Stronger, More Durable, and Easier to Work With

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Derived from burning coal, fly ash is a valuable additive that makes concrete stronger, more durable and easier to work with.

Fly ash aids the formation of cementitious compounds to enhance the strength, impermeability and durability of concrete.

Two main classes of fly ash are used in concrete, Class F, and Class C.

Class F

Reduces bleeding and segregation in plastic concrete. In hardened concrete, increases ultimate strength, reduces drying shrinkage and permeability, lowers heat of hydration and reduces creep.

Class C

Provides unique self-hardening characteristics and improves permeability. Especially useful in pre-stressed concrete and other applications where high early strengths are required. Also useful in soil stabilization.

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