Methods for Applying Polymer-Modified Wet Concrete Mixtures
AssigneeWacker Chemie AG
InventorsKlaus Bonin, Jürgen Bezler
Life of this patent
Estimating the term…
Abstract
The invention relates to methods for applying wet concrete mixtures containing cement, fillers, water, one or more polymers, and possibly further admixtures or additives according to the wet-mix shotcrete method, characterized in that the wet concrete mixtures, which contain at least one polymer based on one or more vinyl esters of unbranched or branched alkyl carboxlic acids having 1 to 15 C atoms and possibly one or more further ethylenically unsaturated monomers, are put into a concrete spraying machine and are applied to a subsurface by means of the wet-mix shotcrete method with a layer thickness of ≧3 cm.
Claims9
A method for applying a wet concrete mixture containing cement, fillers, water, one or more polymers and optionally further additional substances or additives by the wet shotcrete method;
- wherein the wet concrete mixture contains at least a vinyl acetate homopolymer, a copolymer of vinyl acetate with ethylene, a copolymer of vinyl acetate with ethylene and one or more further vinyl esters, a copolymer of vinyl acetate with ethylene and an acrylic acid ester or a copolymer of vinyl acetate with ethylene and vinyl chloride;
- and
- wherein the wet concrete mixture is introduced into a concrete spraying machine and applied to a substrate by means of a wet shotcrete method with a layer thickness of ≧3 cm.
Dependencies are inferred from the claim text.