Welcome to ROSA P | Field test of a polyphosphoric acid (PPA) modified asphalt binder on Rt. 1 in Perry. - 27826 | US Transportation Collection
Stacks Logo
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
Help
Clear All Simple Search
Advanced Search
Field test of a polyphosphoric acid (PPA) modified asphalt binder on Rt. 1 in Perry.
  • Published Date:
    2013-04-01
  • Language:
    English
Filetype[PDF-864.20 KB]


Details:
  • Publication/ Report Number:
    13-03
  • Resource Type:
  • Geographical Coverage:
  • Format:
  • Abstract:
    The Maine Department of Transportation (MaineDOT) uses the Superpave hot mix asphalt process and

    specifies asphalt binder grades using the Performance Grade criteria. The Department mainly uses asphalt

    binder grade PG 64-28. This is an asphalt binder material that passes the performance tests for high

    temperatures (rutting potential) at 64 degrees Celsius and passes tests for low temperatures (thermal

    cracking) at -28 degrees Celsius. In order to create the properties of PG binder, polyphosphoric acid is

    sometimes added to the asphalt. It is widely recognized in the industry that the addition of polyphosphoric

    acid to asphalt can increase the high temperature PG grade to the next higher grade. However, there are

    concerns among transportation agencies that this PPA could alter the long term performance of the asphalt

    binder. One of the major asphalt suppliers to MaineDOT paving projects uses PPA to alter their PG58-28

    neat asphalt binder into a PG64-28.

  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
No Related Documents.
You May Also Like:
Submit Feedback >