Rapid hardening cement
US4066469A · kind A · utility
11Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1976 |
| Grant date | Jan 3, 1978 |
| Priority date | — |
| Expiry date | Oct 15, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/1018
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A gypsum-free ultra-rapid hardening Portland Cement ground to a specific surface area of 3000 to 7000 cm.sup.2 /g and containing a minor proportion of an acid salt of an alkali metal, ammonium or organic base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.