MULTIPLE STRESS CREEP RECOVERY (MSCR)

When bitumen started being used as a binder for asphalt pavements more than a hundred years ago, the first quality control test ever conducted was the "chew test".  A piece of bitumen was chewed by an experienced tester over several minutes.  Based on the expertise of the tester, a judgement was made about the stiffness and the consistency of the bitumen.

 

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