Apparatus for the manufacture of light granulates
US3979168A · kind A · utility
12Cited by
7References
8Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Feb 11, 1975 |
| Grant date | Sep 7, 1976 |
| Priority date | — |
| Expiry date | Feb 11, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S106/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An expanded granular material, particularly intended as a lightweight aggregate for concrete, is produced by melting a finely ground fusible silico-aluminous material, such as fly ash, in the presence of a controlled atmosphere intended to inhibit the liberation of gases coming from the silico-aluminous material, and then forming the melt into drops and cooling under conditions to permit gases to escape from the material thereby causing is expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.