Patent · US Active

Rheology stabilizer for cementitious compositions

US7883577B2 · kind B2 · utility

2Cited by

38References

20Claims

0Family size

Assignee

CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

Sandra R. Sprouts · Oakwood Village, US
Frederick R. Goodwin · Solon, US
Alessandro Dal Bo · Treviso, IT

Key dates

Filing date	Apr 7, 2010
Grant date	Feb 8, 2011
Priority date	—
Expiry date	Apr 7, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B28/02
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An admixture formulation of at least one polycarboxylate dispersant and at least one naphthalene dispersant is provided. When the polycarboxylate dispersant and the naphthalene dispersant of the admixture formulation are combined at various ratios the admixture formulation reduces the tendency for bleed and segregation in cementitious mixtures without increasing water demand, retarding setting, increasing water sensitivity, promoting high viscosity, or reducing flow retention.

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