Methods for applying no mix cements
AssigneeNomix Corporation
InventorsH. Nash Babcock, Edward P. Holub
Life of this patent
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Abstract
Dry cementitious compositions and methods for their application. The dry compositions do not have to be mixed with water but instead are poured, sprayed or troweled onto a substrate which contains a substantial excess of water than the necessary for the hydration of the materials. The dry cementitious material may be poured into water then applied to the substrate with no physical mixing other than that produced by pouring the cementitious composition into the water. The process also uses particles having similar drop rates and a cement content greater than 20% by wt.
Claims22
A method for forming a cured cementitious composition which comprises:
- providing an amount of water in excess of that needed for hydration of said amount of cementitious composition;
- pouring a dry cementitious composition of finely divided particles of at least one cement binder in an amount of at least 20 percent by weight of the composition, the major proportion of the particles having approximately the same drop rate, into the water in a manner such that the cementitious composition combines with a portion of the water without any type of physical mixing of the cementitious composition and water other than the mixing which occurs merely by applying the cementitious compositions into the water to completely hydrate the dry composition while displacing the remainder of the water;
- and
- allowing said hydrated cementitious composition to a substrate and allowing the applied composition to cure to a solid mass.
A method for applying cementitious composition on a substrate which comprises:
- providing vessel means for holding a predetermined amount of a cementitious composition;
- filling said vessel means with an amount of water in excess of that needed for hydration of said amount of cementitious composition;
- pouring a dry cementitious composition of finely divided particles of at least one cement binder in an amount of at least 29% by weight of the composition wherein the major proportion of the particles have approximately the same drop rate into the water in the vessel means without any physical mixing other than that produced by pouring the cementitious composition into the water and in a manner such that the cementitious composition combines with a portion of the water to completely hydrate the dry composition while displacing the remainder of the water;
- directing the hydrated cementitious composition onto a substrate;
- and
- allowing said hydrated cementitious composition to cure to solid mass.
Dependencies are inferred from the claim text.