Modified cement and concrete compositions
AssigneeAir Products and Chemicals, Inc.
InventorsF. MacGregor Miller, Timothy Jay Roth, William Russell Welliver
Life of this patent
Estimating the term…
Abstract
A cementitious composition comprising 0.1 to about 7.5 percent by weight of a solid residual oxidation product from the combustion of an aqueous emulsion of a naturally occurring asphalt from the Orinoco Belt of Venezuela which contains from about 100 to about 1500 ppm by weight of magnesium in the form of a water soluble magnesium salt, which product from the combustion contains magnesium sulfate present in the amount of from about 0.05 to about 4 percent by weight of the cementitious composition and from about 92.5 to about 99.95 percent by weight of a hydraulic silicate cement material.
Claims24
A cementitious composition, comprising:
- from about 0.1 to about 7.5 per cent by weight of a solid residual oxidation product from the combustion of an aqueous emulsion of a naturally occurring asphalt from the Orinoco Belt of Venezuela which contains from about 100 to about 1500 ppm by weight magnesium in the form of a water soluble magnesium salt, which product from the combustion contains magnesium sulfate present in the amount of from about 0.05 to about 4 per cent by weight of the cementitious composition;
- and
- from about 92.5 to about 99.95 per cent by weight of a hydraulic silicate cement material.
A hydrated cementitious concrete composition, comprising:
- a cementitious composition comprising:
- from about 92.5 to about 99.9 per cent by weight of a hydraulic silicate cement material;
- and
- from about 0.1 to about 7.5 per cent by weight of a solid residual oxidation product from the combustion of an aqueous emulsion of a naturally occurring asphalt from the Orinoco Belt of Venezuela and containing from about 100 to about 1500 ppm by weight magnesium in the form of a water soluble magnesium salt, which product from the combustion contains magnesium sulfate present in the amount of from about 0.05 to about 4 per cent by weight of the cementitious composition:
- an aggregate material;
- and
- water in an amount sufficient to hydrate the cementitious composition.
A method comprising incorporating from about 0.1 to about 7.5 per cent by weight of a solid residual oxidation product from the combustion of a naturally occurring asphalt from the Orinoco Belt of Venezuela containing from about 100 to about 1500 ppm by weight magnesium in the form of a water soluble magnesium salt, which product from the combustion contains magnesium sulfate in the amount of from about 0.05 to about 4 per cent by weight of the total composition, into a hydraulic silicate cement present in the amount of from about 92.5 to about 99.9 per cent by weight.
Dependencies are inferred from the claim text.