Strength enhancing additive for certain portland cements
US5084103A · kind A · utility
26Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Aug 2, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to a method of producing enhanced strength portland cements. Under the process of this invention, certain portland cements, in particular those containing at least 4% C.sub.4 AF and up to 0.2% of a strength enhancing additive comprising triisopropanolamine, exhibit a marked increase in 7 and 28 day compressive strength. The triisopropanolamine strength enhancing additive may be admixed with cement powder or may be interground as a grinding aid with cement clinker during finish milling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.