Comparative Analysis of Modified Binders: Original Asphalts and Materials Extracted from Existing Pavements, Summary

摘要

The initial objective of this research was to develop procedures and standards for applying GPC as an analytical tool to define the percentage amounts of polymer modifiers in polymer modified asphalt cements soluble in eluting GPC solvents. Quantification of GPC solvent insoluble CRM present in binders by a repeated solvent/non-solvent precipitation procedure was developed. The second objective was the assessment of the extent of field aging of modifi ed asphalt binders by using both GPC and rheological analyses.