Practice Detection And Prevention (4.5) - Durability of Concrete - Civil Engineering Materials, Testing & Evaluation - Vol 1

Practice: Detection and Prevention

Lesson 4.5Durability of Concrete

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9 questions

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2 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 the purpose of corrosion inhibitors?
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Think about how they protect steel in concrete.
Question 2.
Name one method for detecting corrosion in concrete.
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Consider methods that measure electric potentials.
3Question 3.
What does the half-cell potential test measure?
- Concrete strength
- Corrosion potential
- Water permeability
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It involves measuring electrical potentials.
4Question 4.
True or False: Low permeability concrete is beneficial because it allows more harmful substances to enter.
- True
- False
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Think about permeability as a barrier.
Question 5.
Evaluate the effectiveness of using epoxy-coated rebars in preventing corrosion compared to traditional rebars. Discuss factors that might influence this effectiveness.
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Consider both protection and potential failures of coatings.
Question 6.
Given that a building has shown signs of surface cracking due to corrosion, design a rehabilitation strategy that incorporates both detection and prevention techniques.
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Think about the lifecycle of the building and how to extend it.

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