Blended hydraulic cement for both general and special applications
OwnerWilliam D. Kirkpatrick, Carole W. Kirkpatrickinventors
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Abstract
A blended hydraulic cement binder, is disclosed, consisting of water, fly ash, Type III portland cement, Type I portland cement, slag cement, ground silica, boric acid, borax, citric acid and an alkali metal activator. The cement binder and sequences for mixing the composition, is particularly useful because it provides: time to mix all components adequately, unrestricted transporting time that can be terminated, at will, followed by alterable placement and finishing times. The cement binder can be used as a neat cement or it can be extended with fillers, such as sand and gravel, to make mortar or concrete, that rapidly gains very high structural strengths.
Claims18
A blended hydraulic cement consisting essentially of by weight:
- from about 14.52 to 21.77 percent water,
- from about 5.00 to 23.00 percent cementitious material,
- from about 50.33 to 83.36 percent subbituminous fly ash,
- from about 0.07 to 1.25 percent boric acid,
- from about 0.15 to 2.80 percent borax,
- from about 0 to 8.00 percent ground silica,
- from about 0.04 to 2.83 percent citric acid, and
- from about 0.04 to 11.00 percent alkali metal activator, selected from the group consisting of:
- potassium hydroxide, potassium carbonate, sodium hydroxide, sodium carbonate, lithium hydroxide, and lithium carbonate.
A blended hydraulic cement consisting essentially of by weight:
- from about 14.52 to 21.77 percent water,
- from about 5.00 to 22.97 percent cementitious material,
- from about 50.31 to 83.25 percent subbituminous fly ash,
- from about 0.10 to 1.35 percent boric acid,
- from about 0 to 7.99 percent ground silica,
- from about 0.04 to 2.83 percent citric acid, and
- from about 0.04 to 11.03 percent alkali metal activator, selected from a group consisting of:
- potassium hydroxide, potassium carbonate, sodium hydroxide, sodium carbonate, lithium hydroxide and lithium carbonate.
A blended hydraulic cement consisting essentially of by weight:
- from about 14.52 to 21.77 percent water,
- from about 5.00 to 22.97 percent cementitious material,
- from about 50.30 to 83.25 percent subbituminous fly ash,
- from about 0 to 7.98 percent ground silica,
- from about 0.20 to 2.95 percent borax,
- from about 0.04 to 2.85 percent citric acid, and
- from about 0.04 to 11.05 percent alkali metal activator, selected from a group consisting of:
- potassium hydroxide, potassium carbonate, sodium hydroxide, sodium carbonate, lithium hydroxide, and lithium carbonate.
Dependencies are inferred from the claim text.