Practice Admixture Acceptability - 9.3 | 20. Acceptability Criteria in Concrete Mix Design | Civil Engineering Materials, Testing & Evaluation - Vol 2
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Knowledge

9.3 - Admixture Acceptability

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the primary purpose of adding admixtures to concrete?

💡 Hint: Think about the changes in concrete's handling characteristics.

Question 2

Easy

What standard must admixtures comply with?

💡 Hint: This is a crucial guideline for admixture standards.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

Which standard do admixtures need to comply with?

  • IS 456
  • IS 9103
  • IS 10262

💡 Hint: Focus on the context of admixture regulations.

Question 2

Superplasticizers generally affect setting time negatively.

  • True
  • False

💡 Hint: Think about the role of these admixtures.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A construction team is introducing a new superplasticizer to their concrete mix. They find that it significantly increases workability but also decreases the setting time to 15 minutes instead of the expected 35. What steps should they take to ensure this admixture is appropriate for their project?

💡 Hint: Think about practical implications of quick-setting times.

Question 2

During site trials, a new admixture caused significant segregation in the concrete mix. What should be the next steps the team takes, and what adjustments can they consider?

💡 Hint: Consider how changing one element of the mix could affect the entire outcome.

Challenge and get performance evaluation