Properties and performances of asphalt binders and asphalt mixes modified with polyphosphoric acid

Decreasing the thermal susceptibility of a bituminous binder could be achieved through different ways as from the use of synthetic polymer to special refining process conditions as well as usage of inorganic additives like polyphosphoric acid (PPA). The growing usage of PPA over the past years has raised interest on its chemical interaction with bitumen. The mechanism of interaction between the PPA and the bitumen asphaltenic fraction is discussed. However, very little information is currently available on mix performances resulting from the usage of a PPA modified binder. The influence of a PPA modified binder on typical properties like rutting, fatigue and moisture resistance of the standard mix formula currently used in France (BBSG, BBTM and EME) is presented. For the covering abstract see ITRD E157233

• Authors:
  • Such, C
  • MARTIN, J V
  • PERIGOIS, S
  • PICARD, N
• Publication Date: 2008

Language

• English

Media Info

• Pagination: 9p
• Serial:
  • PROCEEDINGS OF THE 4TH EURASPHALT AND EUROBITUME CONGRESS HELD MAY 2008, COPENHAGEN, DENMARK
  • Publisher: EUROPEAN ASPHALT PAVEMENT ASSOCIATION (EAPA)

Subject/Index Terms

• TRT Terms: Admixtures; Binders; Bituminous mixtures; Chemical reactions; Conferences; Fatigue (Mechanics); Mix design; Phosphoric acid; Polymers; Rutting; Waterproofing
• ITRD Terms: 4736: Admixture; 4948: Binder; 4967: Bituminous mixture; 8525: Conference; 5579: Fatigue (mater); 4714: Mix design; 7330: Phosphoric acid; 7482: Polymer; 7156: Reaction (chem); 3081: Rutting (wheel); 3375: Waterproofing
• Subject Areas: Data and Information Technology; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01321328
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Nov 29 2010 10:58AM