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3 cards from this section. Quick, good the night before a test.
What is the main purpose of modifying bitumen with polymers?
Think about what happens to roads under heavy traffic.
Can you name a polymer commonly used in PMB?
They sound a bit like fancy plastics.
What does PMB stand for?
Focus on what is being modified in the construction context.
True or False: PMB is less resilient than conventional bitumen.
Think about the additional materials that enhance its properties.
Analyze the lifecycle costs of using PMB versus traditional bitumen in a 10-mile highway project. Consider materials, installation, maintenance, and expected lifespan.
Calculating costs per year and longer-term maintenance needs will help.
Evaluate the performance differences between a PMB road and a standard bitumen road under high-stress traffic and varying climate conditions.
Think about the effects of heavy trucks on road surfaces in different seasons.
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