Recycling spent asphaltic concrete
US4239547A · kind A · utility
8Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1979 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Jan 12, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/1004
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Spent asphaltic concrete is recycled by crushing, heating and admixing with sulfur at elevated temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.