Process for manufacturing hydraulic concretes, mortars and cement slurries of improved properties
AssigneeInstitut Francais du Petrole
InventorJean Lesage
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Abstract
Process for preparing hydraulic cement slurries, concretes and mortars by admixing the usual components of said products with a hardenable fluidifying agent including in combination an aqueous solution of at least one epoxy-resin in a proportion from 0.5 to 10% of the cement weight, a hardening agent, an aqueous solution of melamine-formaldehyde at a 5 to 30% concentration thereof, in an amount from 1 to 10% of the cement weight and, optionally, an additional amount of elastomer latex in a proportion from 1 to 20% of the cement weight.
Claims8
A process for the preparation of hydraulic cement products selected from the group consisting of slurries, concretes and mortars, comprising the step of admixing the usual components of said products with a hardenable fluidifying agent comprised of a combination of at least one epoxy resin in the form of an aqueous emulsion, a hardening agent for said resin and an aqueous solution of melamine-formaldehyde;
- the aqueous emulsion of epoxy resin being admixed in an amount from 0.5 to 10% of the cement weight and the melamine-formaldehyde aqueous solution being admixed in an amount from 1 to 10% of the cement weight.
Dependencies are inferred from the claim text.