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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define what an admixture is.
💡 Hint: Think about the purpose of adding something to a mixture.
Question 2
Easy
Name a type of admixture used to improve workability.
💡 Hint: Consider substances that help concrete flow better.
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 purpose of adding an admixture to concrete?
- To make it cheaper
- To enhance its properties
- To change its color
💡 Hint: Focus on the benefits of using these materials in the mix.
Question 2
True or false: Trial mixes are unnecessary when using admixtures.
- True
- False
💡 Hint: Consider the need for testing before large-scale implementation.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the total amount of water needed for a concrete mix that includes a superplasticizer if the original water requirement is 250 kg, and the superplasticizer allows a reduction of 15%.
💡 Hint: What does '15% of 250 kg' mean?
Question 2
You are conducting a trial mix and added a plasticizer which increased the slump from 40 mm to 90 mm. Discuss what considerations you should make for your actual production batch.
💡 Hint: How does increased workability affect the overall mix?
Challenge and get performance evaluation