Practice Cathodic Protection Systems (9.3) - Durability of Concrete - Civil Engineering Materials, Testing & Evaluation

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8 questions

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6 sample questions

Question 1.
What is the main purpose of cathodic protection?
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Think about what happens to metals in water.
Question 2.
Name one type of cathodic protection system.
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One uses different metals to corrode instead.
3Question 3.
What is the function of sacrificial anodes?
- To heal concrete
- To corrode instead of protected metal
- To enhance strength
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Think about what a 'sacrificial' item does.
4Question 4.
Impressed current systems are generally more effective than sacrificial anodes.
- True
- False
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Consider long-term protection versus short-term solutions.
Question 5.
Given the scenario of a marine bridge experiencing corrosion, recommend a type of cathodic protection system and justify your choice.
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Think about the challenges specific to marine environments.
Question 6.
Analyze the effectiveness of sacrificial anodes over a five-year period. What factors would you consider?
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Consider what happens to the anodes over time in relation to corrosion rates.

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