Practice Gas Transport (3.1) - Durability of Construction Materials - Civil Engineering Materials, Testing & Evaluation

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9 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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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 what happens to the pH when CO₂ interacts with concrete.
Question 2.
Why is oxygen ingress a concern?
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What element enhances the corrosion process in concrete?
3Question 3.
What does carbonation do to concrete?
- True
- False
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Think about the chemical reaction involved with CO₂.
4Question 4.
Oxygen ingress is beneficial for concrete durability.
- True
- False
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Consider the effects of oxygen on steel reinforcement.
Question 5.
Design a concrete mix for a coastal structure aiming to minimize gas transport. Describe your choices and their impacts.
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Consider the environmental factors when designing your mix.
Question 6.
Evaluate a case where high carbonation rates were experienced in a structure. What preventive measures could have been implemented?
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Think about architectural decisions that impact durability.

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