Segregation reducing agent consisting of curdlan and alkaline solution and hydraulic composition containing the segregation reducing agent
US6616754B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Dec 12, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00112
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a segregation reducing agent consisting of curdlan and alkaline materials and a hydraulic composition containing the segragation reducing agent, particularly, the present invention relates to the segregation reducing agent prepared by alkalifying a curdlan-producing fermentation broth per se or a curdlan powder with an alkaline material, and also relates to hydraulic compositions, concrete and mortar, comprising the segregation educing agent. This segregation reducing agent can provide a great segregation reduction effect for hydraulic compositions even at its small amount as well as guarantee the strength, filling ability and fluidity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.