Admixtures for mineral binders based on hydrogenated disaccharide, admixture-containing mineral binders, and a process for the preparation thereof
US6648964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Feb 28, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B24/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A novel admixture for mineral binders is composed of a polyol composition with a high hydrogenated disaccharide content (≧40%). The hydrogenated disaccharide is advantageously chosen from maltitol, lactitol and mixtures thereof. Within the admixture, the polyol composition (for example, maltitol powder, a maltitol syrup or a hydrogenated starch hydrolysate) may be combined with conventional admixtures for mineral binders, particularly lignosulfonates. The hydrogenated disaccharides make it possible to obtain an excellent compromise between retardation, plasticity and the mechanical properties of the mineral binder. They may be used equally well for admixing with cements and raw materials for cements as for admixing with mortars, slurries and concretes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.