Practice Gas And Fluid Transport In Concrete (3) - Durability of Construction Materials

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is carbonation in concrete?
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Think about how gases interact with concrete.
Question 2.
What is permeability?
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Consider how water moves through materials.
3Question 3.
What gas primarily affects concrete durability by causing corrosion?
- O₂
- CO₂
- N₂
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Think about the chemical reactions occurring in concrete.
4Question 4.
True or False: Higher permeability generally leads to better durability in concrete.
- True
- False
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Consider how substitutions impact structure.
Question 5.
Given a concrete sample with significant chloride ingress, describe how this could impact the structural integrity over a 20-year period.
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Think about metal exposed to saltwater.
Question 6.
If a new type of pozzolanic material is introduced that significantly reduces the permeability of concrete, predict the effects on durability.
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What do you think happens to materials that resist moisture?

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