Novel Chemical Substitutions for Portland Cement Mixtures and Applications Therefor
AssigneeSurface Tech LLC
InventorBryan GOERGER
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Abstract
Embodiments of the invention enhance the performance of concrete mixtures, and have the flexibility to be used in both a variety of traditional poured concretes, as well as in sprayed concrete applications and geotechnical solutions which is commonly considered a cement application. It is an aspect of the present invention to provide a cementitious material comprising fly ash, wollastonite and nepheline syenite which is flexible enough in nature and chemistry to be used in a variety of concrete application which are poured and sprayed, as well as in blended into and within traditional cement applications. The use of a graduated blend of mineral fibers and industrial minerals also provide marked benefits to reduce both project cost and environmental impact.
Claims15
A dry cementitious mixture comprising:
- stone, sand, Portland cement, fly ash and mineral fibers mixed together to produce a dry cementitious mixture having roughly uniform ingredient distribution and a total weight, wherein
- a weight of the stone is between 40 and 50% of the total weight;
- a weight of the sand is between 30 and 40% of the total weight;
- a weight of the Portland cement is between 10 and 15% of the total weight;
- a weight of the fly ash is between 5 and 10% of the total weight;
- and
- a weight of the mineral fibers is between 0.5 and 2% of the total weight, the mixture further comprising:
- wollastonite as a portion of the fly-ash component, a weight of the wollastonite being between 1% and 7.5% of the total weight, and wherein
- said wollastonite made up of at least one grade of powder-type wollastonite and at least one grade of anisotropic-type wollastonite particles.
Dependencies are inferred from the claim text.