Patent · US Active

Aqueous gypsum plaster-cement composition and its use

US9027303B2 · kind B2 · utility

35Cited by

16References

18Claims

0Family size

Assignee

Crupe International (IP) GmbH · CH

Inventors

Hubert Lichtinger · Estepona, ES
Bernd Eck · Viernheim, DE

Key dates

Filing date	Sep 8, 2011
Grant date	May 12, 2015
Priority date	—
Expiry date	Nov 10, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S106/02
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An aqueous gypsum plaster-cement composition comprises a hydraulic binder consisting of calcined gypsum and hydraulic cement in a weight ratio of from about 4:1 to about 2:1, an aggregate which comprises sand, a foam, a perlite, rice hulls or a mixture thereof, a superplasticizer comprising an air entraining agent, a retarder, and water in an amount of from about 0.4 to about 0.75 parts by weight per part of binder, with the proviso that the gypsum plaster-cement composition contains essentially neither a pozzolana nor lime. The use thereof, a method of constructing buildings using this composition and the buildings obtainable in this way are also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.