METHODS :To evaluate grade of four modified binders, PG testing protocols, such as DSR, BBR and MSCR are employed.
RESULTS :It is observed that MSCR test shows different performance grades especially on modified binders. Both DMP and EG binder show similar high temperature performance to SBS 5% modified binder.
CONCLUSIONS :Binder Grading system in Korea need to be reviewed to properly reflect the performnace of modified binders. The binders modified with DMP and EG can be possible alternatives SBS 5% modified binder considering its performance and cost.
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