Hydraulic cement and composition employing the same
US4997484A · kind A · utility
81Cited by
12References
24Claims
0Family size
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Inventors
Key dates
| Filing date | Jun 5, 1990 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Jun 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S106/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hydraulic cement is formed from a Class C fly ash, an alkali metal activator, and citric acid. Mortar and concrete compositions can be prepared with this hydraulic cement. The cement is particularly useful in producing mortar and concrete compositions that achieve high strengths in a short time, in particular, a mortar having a strength of at least 2500 psi in 24 hours, when cured at room temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.