Polyphosphoric Acid Modification of Asphalt Binders: A Workshop

TRB’s Transportation Research Circular E-C160: Polyphosphoric Acid Modification of Asphalt Binders: A Workshop documents the research discussed and presentations made at a April 2009 workshop that explored polyphosphoric acid-modified asphalt and its performance.

The circular includes presentations made on a survey on polyphosphoric acid use and issues; the why and how of polyphosphoric acid modifications; the effect of polyphosphoric acid on asphalt binder properties; the use of phosphoric acid as a modifier for hot-mix asphalt; and more.

Read the Circular

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