01363323

Component

http://www.trb.org/Publications/Blurbs/166590.aspx

This paper provides a case study demonstrating how a regional asphalt supplier located in Glendale, Arizona, implemented polyphosphoric acid (PPA) as an asphalt modifier. This modification approach was necessitated by a change in asphalt binder selection strategy on the part of the Arizona Department of Transportation. The paper outlines why the supplier decided to use PPA, experimentation that validated its use, and operational and modification tactics. Pavement performance of seven projects that utilized PPA-modified binders is described. Typical quality control data of unmodified and PPA-modified binders are included.

01363314

English

pp 136-149

2012-1

Transportation Research Circular

Workshop on Polyphosphoric Acid Modification of Asphalt Binders

Digital/other

Figures; Photos; References; Tables

Bituminous binders; Case studies; Pavement performance; Phosphoric acid; Quality control

Polyphosphoric acid

Glendale (Arizona)

Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials

TRIS, TRB

Feb 23 2012 1:36PM

• Analytical Procedures for Determining Phosphorus Content in Asphalt Binders and Impact of Aggregate on Quantitative Recovery of Phosphorus from Asphalt Binders
• Best Practices for Polyphosphoric Acid Modification of Asphalt: Phosphate Forum of the Americas
• Binder Modification with Combination of Polyphosphoric Acid and Styrene-Butadiene-Styrene: National Center for Asphalt Technology Test Track Experience
• Department of Transportation Perspective: A Survey on Polyphosphoric Acid Use and Issues
• Effect of Polyphosphoric Acid on Asphalt Binder Properties
• Establishing a Baseline of Knowledge Through 2005 by Reviewing AI IS-220: Polyphosphoric Acid Modification of Asphalt
• Field Investigation of Polyphosphoric Acid–Modified Binders at MnROAD
• Louisiana Approach to Binder Modification
• Modified Asphalt Cement Use in Arkansas
• Polyphosphoric Acid in Combination with Styrene-Butadiene-Styrene Block Copolymer: Laboratory Mixture Evaluation
• Polyphosphoric Acid Modification of Asphalt Binders: A Workshop. Workshop Summary
• Polyphosphoric Acid–Modified Asphalt Cement: Ontario Perspective
• Polyphosphoric Acid–Modified Binders and Mixtures: Aggregate and Binder Interactions, Rutting, and Moisture Sensitivity of Mixtures
• Use of Phosphoric Acid as Modifier for Hot-Mix Asphalt
• Why and How of Polyphosphoric Acid Modification: An Industry Perspective
• Wisconsin Approach to Binder Modification