Practice Durability (1.3) - Acceptability Criteria in Concrete Mix Design

Practice: Durability

Lesson 1.3Acceptability Criteria in Concrete Mix Design

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9 questions

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6 sample questions

Question 1.
What is the definition of durability in concrete?
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Think about how long the concrete lasts without needing repairs.
Question 2.
Why is the minimum cement content important?
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Consider what materials contribute to strength in concrete.
3Question 3.
What is the acceptable maximum water-cement ratio for marine environments?
- 0.60
- 0.45
- 0.50
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Recall our discussion on seawater exposure.
4Question 4.
True or False: Higher cement content always leads to reduced durability of concrete.
- True
- False
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Consider the role of cement in strength.
Question 5.
Calculate an appropriate water-cement ratio for a concrete structure that will be exposed to marine conditions. Discuss how it influences overall durability.
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Consider the effects of water on concrete integrity over time.
Question 6.
Propose a mix design for a parking garage in an urban area where exposure to de-icing salts is common. Evaluate the critical factors for durability in your design.
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What precautions should be taken in urban environments to handle exposure to salts?

5 more questions in this section. Enroll free to practise them all.