Multi-functional admixtures for concrete
US7601770B2 · kind B2 · utility
2Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2004 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Feb 24, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/34
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A multi-functional admixture for concrete, having improved fluidity for providing hardened materials with improved early strength, smaller shrinkage rate, improved resistance against freezing and thawing action and slower carbonation speed, contains a specified kind of graft copolymer and/or its salt, a specified kind of (poly)alkyleneglycol monoalkyl ether and a specified kind of organic phosphate at specified ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.