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5 cards from this section. Quick, good the night before a test.
What does the distillation test measure?
Think about what happens when the solvent evaporates.
Why is the penetration test conducted?
What does a needle sinking into bitumen indicate?
What does the distillation test classify?
Remember the test's focus on solvents.
True or False: A high penetration value indicates a very soft bitumen.
Think about what penetration depth means.
If a distillation test indicates a cutback contains 70% volatile solvent, classify it and explain the implications for its use.
Consider the relation between volatility and curing time.
Discuss how varying penetration values might influence the choice of bituminous cutback for different climates.
Think about the effects of temperature on material flexibility.
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