Cementitious compositions and their uses
US5958131A · kind A · utility
30Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Dec 18, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/27
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composition suitable for adding to water to produce a water-resistant hydraulic solid which composition comprises components (a), (b) and (c) as follows: PA1 (a) calcium sulphate hemihydrate; PA1 (b) portland cement; PA1 (c) calcined clay having a pozzolanic activity; wherein the percentages by weight of components (a), (b) and (c) in the said composition are in the respective ranges: PA1 (a) from 20% to 98%; PA1 (b) from 1% to 50%; PA1 (c) from 1% to 30%; the percentages of components (a), (b) and (c) adding to 100% in the three component composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.