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4 cards from this section. Quick, good the night before a test.
List the four grading zones for fine aggregates.
Think about the order from coarsest to finest.
What is the fineness modulus used for?
It's an empirical value.
Which grading zone is the coarsest?
Recall the classification from coarsest to finest.
True or False: Continuous grading enhances void space in concrete mixtures.
Think about the packing of aggregate sizes.
Analyze a situation where a contractor chooses gap grading for a concrete project. Discuss both the benefits and drawbacks emphasizing workability and durability.
Think about the requirements for different concrete applications.
A concrete engineer has a fineness modulus of 2.5 for their aggregate. What adjustments should they make to their water-cement ratio during mix design?
Consider how aggregate size affects water absorption.
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