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3 cards from this section. Quick, good the night before a test.
What is fatigue failure?
Consider how materials behave under continuous stress.
Explain what microcracks are.
Think about how small issues can lead to major problems in materials.
What is the primary cause of fatigue failure in bituminous mixes?
Think about how traffic affects pavement over time.
True or False: Microcracks do not affect the overall integrity of a pavement.
Consider the consequences of small cracks evolving over time.
Design a lab experiment to test the fatigue resistance of a new asphalt mix. Describe the methodology, key variables, and expected outcomes.
Focus on the specifics of the testing design and how to monitor the results.
Discuss how varying environmental conditions, particularly moisture, impacts the fatigue life of bituminous mixes, providing examples from case studies.
Consider both laboratory findings and real-world examples to support your conclusions.
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