Non-efflorescing cementitious bodies
US6923857B2 · kind B2 · utility
18Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2001 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Mar 26, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A non-efflorescing cementitious body is formed from sources of calcium aluminate, calcium silicate, calcium sulphate and reactive silica, these ingredients being present in such relative proportions that, upon hydration, both monosulphate (C3A.CŜ.12H) and hydrated alumina (AH3) are formed. Also disclosed is a hydraulic binder and a paste from which such bodies can be formed and a method for forming such bodies. In addition to exhibiting low efflorescence, these bodies retain satisfactory physical properties, especially good durability to natural weathering conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.