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Asphalt Modification with Phosphoric Acid

Project Information

Project ID: 
FHWA-PROJ-06-0028
Project Abstract: 

This project continues ongoing research activity that will provide guidance to State agencies and industry partners on the appropriate use of phosphoric acid as an asphalt modifier. Issues still not clearly resolved are the reaction of phosphoric acid with asphalt from different crude sources, reaction with lime and limestone aggregates, and the effect on rutting and fatigue. The comparison of phosphoric acid modification with polymer modification needs to be augmented. There are also unresolved forensic issues in New York State concerning phosphoric acid and premature pavement failures. Until this is resolved, other State agencies will likely reject the use of this potentially cost-saving additive.

Research HUB ID: 
7805
Project Status: 
Completed
Project Funding Amount (Contract Award Amount): 
$500,000
Start Date: 
Tuesday, December 5, 2006
End Date: 
Thursday, February 20, 2014
Public Access Plan: 
No
Laboratory: 
Asphalt Binder and Mixtures Laboratory (ABML), Chemistry Laboratory
Grant/Contract ID: 
DTFH61-08-D-01001
FHWA Program Area: 
Infrastructure
FHWA AMRP Program: 
Pavement and Materials

Contact Information

First Name: 
Terry
Last Name: 
Arnold
Phone Number: 
(202) 493-3305
Email Address: 
Team: 
Infrastructure Materials Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-10

Management Organizations

Sponsor Organization: 
Organization Role: 
Sponsor Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role: 
Project Lead
Contact: 
Managing Organization: 
Organization Role: 
Project Managing Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role: 
Project Lead
Contact: 
Performing Organization: 
Organization Role: 
Performing Organization
Organization: 
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development

Deliverables