Concrete containing aqueous slurry of ground calcium carbonate
US6402831B1 · kind B1 · utility
43Cited by
5References
6Claims
0Family size
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Key dates
| Filing date | Apr 27, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Apr 27, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Concrete characterized by containing aqueous slurry of ground calcium carbonate which has a mean particle diameter of 0.5-3 micrometers produced by wet pulverization of the limestone. By adding fine powder of ground calcium carbonate, fluidity of the concrete is increased and workability thereof is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.