Correlation between PG plus, superpave pg specifications and molecular weight from GPC for different polymer modified binders

Eileen Batten, Yusuf Mehta, Aaron Nolan, Sarah Zorn, Kevin Dahm

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


The purpose of this paper is to present a correlation of Multiple Stress Creep and Recovery (MSCR) parameters with elastic recovery and molecular weight of different polymer modified binders (PMB). The MSCR test which was recently developed by Federal Highway Administration (FHWA) enables one to correctly grade the field performance of polymer modified asphalts. The polymer modification of asphalts is one of the solutions to overcome the asphalt pavement defects such as rutting, thermal cracking, fatigue and stripping. However, the different polymer modified asphalts can behave differently even though they have the same performance grade. The MSCR test measures the high temperature binder specification parameter called non-recoverable creep compliance or Jnr, and percent recovery. In this study eight different polymer modified binders are measured. The molecular weights were determined using Gel Permeation Chromatography (GPC). The correlation of the MSCR results with the molecular weight will provide an insight into how modification effects mechanical response and the rutting potential as measured from MSCR.

Original languageEnglish (US)
Title of host publicationGeo-Frontiers 2011
Subtitle of host publicationAdvances in Geotechnical Engineering - Proceedings of the Geo-Frontiers 2011 Conference
Number of pages9
Edition211 GSP
StatePublished - 2011
EventGeo-Frontiers 2011: Advances in Geotechnical Engineering - Dallas, TX, United States
Duration: Mar 13 2011Mar 16 2011

Publication series

NameGeotechnical Special Publication
Number211 GSP
ISSN (Print)0895-0563


OtherGeo-Frontiers 2011: Advances in Geotechnical Engineering
Country/TerritoryUnited States
CityDallas, TX

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


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