Highly activated mixtures for constructing load bearing surfaces and method of making the same
US4018619A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1976 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Jan 22, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S106/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Improved cementitious composition results from a process comprised of mechanical size reduction and activation of a mixture of lime and fly ash and the addition thereto of fly ash and aggregate, as needed, to make a mix of the desired proportions. A quicker and more complete reaction between the lime and fly ash results from deagglomeration of lime particles caused by interaction with the fly ash and/or by the increased availability of reactant materials due to particle size reduction of both the lime and the fly ash. The mechanical size reduction and activation process may be carried out, for example, in a ball mill or centrifugal impact mill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.