Reclaimed asphalt pavement containing polyphosphoric acid modified binder
US8906152B2 · kind B2 · utility
12Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2010 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Sep 6, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2555/52
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Pavement compositions containing increased amounts of reclaimed asphalt pavement (RAP) are described. Addition of polyphosphoric acid (PPA) to pavement compositions containing RAP allows increased RAP content in road pavements while maintaining acceptable properties in the final pavement composition. Methods for producing road pavements containing RAP and PPA are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.