Practice Durability Considerations (from Is 456:2000 Table 5) (17) - Objectives of Mix Design

Practice: Durability Considerations (From IS 456:2000 Table 5)

Lesson 17Objectives of Mix Design

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9 questions

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6 sample questions

Question 1.
What is the maximum water-cement ratio for mild exposure conditions?
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Look at the first row of the table for mild conditions.
Question 2.
Define durability in the context of concrete.
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Consider how long concrete lasts under different conditions.
3Question 3.
What is the maximum water-cement ratio for very severe environmental conditions?
- 0.45
- 0.40
- 0.60
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Check your table for very severe exposure.
4Question 4.
Is it beneficial to select higher water-cement ratios for durability?
- True
- False
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Consider why dense concrete is better for durability.
Question 5.
You have a project in a location classified as 'severe'. Calculate the appropriate maximum water-cement ratio and minimum cement content for an M30 grade mix.
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Refer to the durability guidelines table.
Question 6.
Reflect on a building that faced durability challenges. Discuss the likely parameters that were not adhered to based on exposure conditions.
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Consider what the severity of the environment might require.

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