Cement binder based plate
US7326478B2 · kind B2 · utility
20Cited by
4References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2002 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Mar 15, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00612
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention concerns a plate whereof the body comprises a binder containing Portland cement, a sulphoaluminous clinker and a calcium sulphate source: the binder comprises, by weight 30 to 80% of Portland cement, 20 to 70% of sulphoaluminous binder, 5 to 20% of a calcium sulphate source, and 0.4 to 7% of a water-reducing plasticizer or highly waterreducing superplasticizer admixture; it contains light aggregates in an amount such that the final density is close to 1, of the order of 0.8 to 1.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.