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US 5,108,790 AGranted
Methods of applying compositions of no mix compounds
OwnerH. Nash Babcockinventor
Life of this patent
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Abstract
Dry cementitious compositions and packages 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 water in an amount in excess of that necessary for the hydration of the cementitious materials. These compositions can be applied by layering, dropping through a conduit, or preferably, merely dropped into the water.
Claims15
A method for applying a dry cementitious composition upon a substrate which comprises:
- saturating a substrate with water in excess of that needed for hydration of a first dry cementitious composition which is to be applied;
- applying a first layer of a hydrated cementitious composition onto the substrate by dropping a first dry cementitious composition having at least one cement binder in the form of finely divided particles into the water without any type of physical mixing in a manner such that the first cementitious composition combines with a portion of the water to become hydrated without causing substantial dilution or segregation of the particles and wherein excess water is displaced from the substrate by the dropping of the dry composition thereinto;
- providing additional water upon the first layer to assure complete hydration of the cementitious composition and to provide water in excess of that needed for hydration of a second dry cementitious composition which is to be applied upon the first layer;
- applying at least one second layer of a hydrated cementitious composition onto the first layer by dropping a second dry cementitious composition having at least one cement binder in the form of finely divided particles into the water without any type of physical mixing in a manner such that the second cementitious composition combines with a portion of the water to become hydrated without causing substantial dilution or segregation of the particles and wherein excess water is displaced from the substrate by the dropping of the dry composition thereto;
- assuring complete hydration of the cementitious composition of the second layer;
- and allowing the hydrated layers to cure to a solid mass.
3 more elements
Dependencies are inferred from the claim text.