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3 cards from this section. Quick, good the night before a test.
What are coarse aggregates?
Think about the sizes of particles in concrete.
Name one type of natural coarse aggregate.
What do rivers usually carry?
What defines coarse aggregates in concrete?
Think about their size relative to fine aggregates.
True or False: Natural aggregates can only be obtained from gravel pits.
Think about the diversity of natural sources.
How would you select a coarse aggregate for a coastal building project where saltwater exposure is a concern?
Think about environmental exposure and material properties.
Design a concrete mix using both natural and manufactured aggregates for a lightweight structure. Justify your choices based on properties.
Consider the trade-offs between weight and strength.
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