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Title:

Field Investigation of Polyphosphoric Acid–Modified Binders at MnROAD
Cover of Field Investigation of Polyphosphoric Acid–Modified Binders at MnROAD

Accession Number:

01363320

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/00978515

Abstract:

This paper provides details on the 2007 reconstruction of several cells on the Minnesota Road Research Project (MnROAD) low-volume road to support a study investigating the field performance of polyphosphoric acid (PPA)–modified binders. The project is the result of successful partnerships between the Minnesota Department of Transportation, private industry, and government agencies (FHWA and the Minnesota Local Road Research Board). This paper documents the study background, test section construction, instrumentation, and initial laboratory test results of four different asphalt binders. The binder grade was PG 58-34 on all the test cells, which incorporated the following binder materials: 0.75% PPA only (Cell 33), 0.3% PPA + 1.0% styrene-butadiene-styrene (SBS) polymer (Cell 34), 2.0% SBS polymer only (Cell 35), and 0.3% PPA + 1.1% Elvaloy polymer (Cells 77-79; shared with fly ash study). All of the laboratory tests to date show that the PPA-modified binder materials perform well, at the same level as polymer-modified binders. Rutting, fatigue cracking, and low-temperature cracking performance all appear to be acceptable based on laboratory asphalt binder and mixture testing. Early performance after one year of traffic also shows that the test sections are performing well with minimal rutting or cracking.

Monograph Accession #:

01363314

Language:

English

Authors:

Clyne, Timothy R
Johnson, Eddie N
McGraw, James
Reinke, Gerald

Pagination:

pp 115-130

Publication Date:

2012-1

Serial:

Transportation Research Circular

Issue Number: E-C160
Publisher: Transportation Research Board
ISSN: 0097-8515

Conference:

Workshop on Polyphosphoric Acid Modification of Asphalt Binders

Location: Minneapolis Minnesota, United States
Date: 2009-4-7 to 2009-4-8
Sponsors: Transportation Research Board; Federal Highway Administration; Minnesota Department of Transportation

Media Type:

Digital/other

Features:

Figures; References; Tables

Uncontrolled Terms:

Polyphosphoric acid

Subject Areas:

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

Files:

TRIS, TRB

Created Date:

Feb 23 2012 12:59PM

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