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4 cards from this section. Quick, good the night before a test.
Define plastic shrinkage.
Think about how weather can impact newly poured concrete.
What is the water-cement ratio?
Consider how changing the amount of water would affect the concrete mixture.
What causes plastic shrinkage in concrete?
Think about what happens to water that’s left out in the sun.
True or False: Drying shrinkage is the most common type of shrinkage in concrete.
Think about when concrete loses moisture after setting.
A concrete slab cracks after drying despite having a low water-cement ratio. What other factors might contribute to this shrinkage, and how could they be addressed?
Consider environmental impacts and construction practices.
Design a mix that minimizes both plastic and drying shrinkage for a major concrete structure exposed to harsh conditions.
Think about how the right ingredients create a balanced and stable mix.
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