Practice Effects on Properties of Concrete - 4.7 | 4. Chemical Admixtures | Concrete Technology
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4.7 - Effects on Properties of Concrete

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What do admixtures do to the workability of concrete?

💡 Hint: Think about how they help with flow and handling.

Question 2

Easy

Name one effect that accelerators have on concrete.

💡 Hint: Recall what happens in cold weather conditions.

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

What is the primary benefit of using water reducers in concrete?

  • Increase water content
  • Decrease water content while maintaining workability
  • Reduce setting time

💡 Hint: Think about the goal of reducing excess water.

Question 2

True or False: Retarders can be used to hasten the setting time of concrete.

  • True
  • False

💡 Hint: Reflect on the terminology of 'retard' and 'accelerate'.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You are constructing a bridge in a coastal area where there is a high risk of corrosion. Describe what type of admixtures you would recommend and justify your choice.

💡 Hint: Consider the specific issues of salt and moisture in coastal environments.

Question 2

During a hot summer construction project, the workers have a short window to pour concrete before it sets too quickly. Which admixture would you utilize, and why?

💡 Hint: Think about the conditions and how they affect concrete setting.

Challenge and get performance evaluation