Practice Types Of Deleterious Substances (3.9.1) - Aggregates for Concrete

Practice: Types of Deleterious Substances

Lesson 3.9.1Aggregates for Concrete

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9 questions

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4 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 do deleterious materials do to concrete?
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Think about harmful substances.
Question 2.
Name one type of deleterious substance.
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You learned about them in class.
3Question 3.
What is a deleterious material?
- A substance that enhances concrete performance
- A substance that negatively affects concrete
- A material used only for aesthetic purposes
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Focus on the negative impact.
4Question 4.
True or false: Only large particles can be deleterious.
- True
- False
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Think of the different sizes and types you learned.
Question 5.
Consider a concrete mix that exceeds the allowable limit for clay. Discuss how it affects the overall performance of the concrete in a structural application.
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Link the performance issues with increased water demands.
Question 6.
You have aggregate samples containing organic impurities. What tests would you recommend to check if they meet the permissible limits as per IS: 383, and what actions should be taken if they exceed the limits?
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Remember the role of the color test.

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