Practice Factors Affecting Permeability (2.2) - Durability of Construction Materials

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9 questions

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6 sample questions

Question 1.
What does permeability refer to?
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Think about how water moves through a sponge.
Question 2.
Why is a lower water-to-cement ratio beneficial?
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Consider strength in concrete.
3Question 3.
What is the effect of a lower water-to-cement ratio on permeability?
- Increases permeability
- Decreases permeability
- No effect
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Consider how density affects movement.
4Question 4.
True or False: Higher porosity generally means lower permeability.
- True
- False
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Think about how much space is available for water.
Question 5.
You have two concrete samples: one with a w/c ratio of 0.55 and another with 0.35. Predict which one will have higher permeability and why.
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Consider how water affects the concrete mixture.
Question 6.
Explore the effects of inadequate compaction on concrete performance in a wet environment.
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Think about how air pockets influence water flow.

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