Cement composition
US6840996B2 · kind B2 · utility
38Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2001 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cement composition of an environmental impact reducing type, used in the field of civil engineering and construction, which provides initial strength-development equal to that of ordinary Portland cement and which can reduce the clinker calcination amount, is provided. A cement composition containing Portland cement having a 3CaO.SiO2 content of at least 60% and a slowly cooled blast furnace slag powder, wherein the content of the slowly cooled blast furnace slag powder is from 10 to 50 parts per 100 parts of the cement composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.