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Understanding the Performance of Modified Asphalt Binders in Mixtures: Low-Temperature Properties

Research/Reference: useful for researchers doing further work in the pavement area as well as those developing improved testing and design procedures. Includes documents of historical value.

Primary Topic: Materials-Concrete

Description: This report documents the effects of polymer-modified asphalt binders on the low-temperature cracking resistances of asphalt mixtures. An emphasis was placed on evaluating the performances of mixtures containing polymer-modified asphalt binders with identical Superpave performance grades, but varied modification chemistries. This study is part of a larger study titled "Understanding the Performance of Modified Asphalt Binders in Mixtures," which is partially funded through the National Cooperative Highway Research Program (NCHRP) Project 90-07. The objective of NCHRP Project 90-07 is to determine if asphalt binder performance is correctly captured by the Superpave asphalt binder specification developed under the 1987 through 1993 Strategic Highway Research Program and modified under subsequent studies. This report will be of interest to highway personnel who use polymer-modified asphalt binders and Superpave.

FHWA Publication Number: FHWA-RD-02-074

Publication Year: 2002

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Updated: 02/20/2015
 

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