Flyash-based compositions

Details Flyash-based compositions Flyash-based compositions

1993-01-06

1995-08-08

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106778, 106783, 106785, 106DIG1, C04B 1806

Patent

active

054395186

ABSTRACT:
Binder compositions are provided which are principally composed of a lime-containing flyash, and optionally hydratable gypsum, with a small amount of a property improving additive. The compositions are capable of setting when mixed with sufficient water to form a hardened material having a high degree of compressive strength after only about 1 hour following set. In selected embodiments, compositions are provided for floor underlayment, road patch and exterior statuary applications. Compressive strengths starting at about 600 psi can be achieved within 1 hour after set with adequate working time for construction applications.

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Fly Ash Facts for Highway Engineers (U.S. Dept. of Transportation) FHA Jul. 1986 p. 6.
Xu, Aimin, and Sarkar, Shondeep L., "Microstructural Study of Gypsum Activated Fly Ash Hydration in Cement Paste" (Cement and Concrete Research, vol. 21, pp. 1137-1147, (1991).
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