System for producing manufactured materials from coal combustion ash
US6334895B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1999 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Jul 20, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/49
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention discloses a system for cold bond processing of combustion ash which enhances various characteristics of the resulting cured consolidated combustion ash materials. Specifically, the invention relates to processing techniques which enhances both density and strength of the of the consolidated combustion ash materials. The invention also relates to processing techniques which control various chemical reactions which assure that certain types of minerals are formed in the proper amounts which results in a cured consolidated combustion ash material which has greater dimensional stability and enhanced resistance to degradation. Embodiments for both normal weight and light weight combustion ash aggregates are disclosed which meet various ASTM and AASHTO specifications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.