Patent · US Expired

High early-strength cementitious composition

US6858074B2 · kind B2 · utility

101Cited by

43References

55Claims

0Family size

Assignee

CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

James Edward Anderson · Henderson, US
Joseph Andrew Daczko · Hiram, US
John Luciano · Galion, US

Key dates

Filing date	Aug 14, 2002
Grant date	Feb 22, 2005
Priority date	—
Expiry date	Apr 15, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/05
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A high early-strength cementitious composition comprising a hydraulic cement; and a combination admixture system wherein the combination admixture system comprises a polycarboxylate high range water reducing dispersant in combination with an accelerator and a retarder. The admixture allows for acceptable workability and development of high early-strength in cementitious compositions without the use of an external heat source.

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