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3 cards from this section. Quick, good the night before a test.
What is the primary reason for having well-graded aggregates?
Think about what reducing voids would mean for material costs.
Why might rounded aggregates be preferred over angular ones?
Consider how they fit together.
Why is grading important in concrete mix design?
Think about how effective packing can change material requirements.
True or False: Angular aggregates ensure better workability than rounded aggregates.
Consider how the shape affects movement and alignment.
A construction project specifies a maximum aggregate size of 20mm for concrete. Discuss the possible effects on workability, strength, and overall mix design.
Think about how dimensions and particle interaction influence behavior in mixes.
Evaluate a scenario where overly angular aggregates are supplied instead of rounded ones. What adjustments can be made to compensate in the mix design?
Consider how you can adjust water to modify the flow of a stiff mix.
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