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2 cards from this section. Quick, good the night before a test.
What is the main purpose of adding modifiers to bituminous binders?
Think about what benefits we want from a better binder.
Name one type of modifier used in bitumen.
Recall the types we discussed in class.
What do polymer modifiers primarily improve in bituminous binders?
Think about how materials must flex in different weather.
True or False: Rubber powder enhances durability but is not recycled.
Consider the sustainable aspects of using waste materials.
Design a new bituminous binder using a combination of modifiers to optimize its performance for urban roads. List the modifiers and justify your choices.
Consider both climate and expected wear on urban roads.
Analyze the relationship between the choice of modifiers and the life cycle cost of road maintenance.
Think about the balance between upfront investment and future savings.
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