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2 cards from this section. Quick, good the night before a test.
What temperature are aggregates heated to?
Look for the range given in the text.
How many blows are given during compaction?
Think about the compaction step in the preparation.
What temperature range is used to heat aggregates?
Look for the temperature mentioned in the preparation process.
True or False: The bitumen should be mixed with aggregates at temperatures above 160°C.
Consider the mixing section in the text.
If a batch of aggregates is heated to 200°C instead of 190°C, discuss what impact this could have on the mixture’s properties.
Consider how extreme temperatures affect material properties.
Discuss why maintaining a compact thickness of 63.5 mm is critical in the Marshall testing phase.
Think about the experimental consistency needed.
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