Two-phase material of concrete and polymer and its method of preparation
AssigneeThe United States of America as represented by the Secretary of the Army
InventorJames L. Lott
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Abstract
A two-phase material of foamed cement or concrete and polymer providing tmal insulating, structural elements composed of an unimpregnated foam cement or concrete core and impregnated surface regions of the two-phase material and method employing a hydraulic head or vacuum means to provide high polymer loading through a large volume of foam voids in the cement or concrete for easy impregnation of high viscosity monomers and uncured resins to a considerable depth below the surface of the cement or concrete before in situ polymerization.
Claims4
A two-phase formed material having thermal insulating and structural stress bearing capability comprising:
- a. a foamed masonry material having a dispersed foam void volume of 50-65 per cent of the volume of said material;
- and
- b. a region adjacent a surface of said foamed material defined by polymer impregnated interconnected foam voids and masonry material.
A two-phase material having thermal insulating and structural stress bearing capabilities comprising:
- a. a foamed masonry material having opposed surfaces and a dispersed foam void volume of 50-65 per cent of the volume of said material;
- b. a region adjacent each of said opposed surfaces including polymer impregnated interconnected foam voids;
- and
- c. a core region of unimpregnated foam voids and masonry material between said regions adjacent each of said opposed surfaces.
Dependencies are inferred from the claim text.