Table 3 Sample codes for GS2.

From: Estimation of re-refined engine oil bottom content in bitumen and its chemo-rheological effects as an additive and rejuvenator

Sample code

Description

Neat

60/70 neat bitumen

A(Neat)

Neat sample after short- and long-term aging

AN-7R1

A(Neat) + 7 wt% R1

AN-7R2

A(Neat) + 7 wt% R2

AN-7R3

A(Neat) + 7 wt% R3

AN-9R1

A(Neat) + 9 wt% R1

AN-9R2

A(Neat) + 9 wt% R2

AN-9R3

A(Neat) + 9 wt% R3

AN-11R1

A(Neat) + 11 wt% R1

AN-11R2

A(Neat) + 11 wt% R2

AN-11R3

A(Neat) + 11 wt% R3