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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does 'fck' represent in concrete mix design?
💡 Hint: Think about the strength point where only a small percentage of samples fall below.
Question 2
Easy
Define workability.
💡 Hint: Consider how well concrete can flow and fill forms.
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 considered the minimum individual strength for acceptance of concrete mixes?
- 15 MPa
- 18 MPa
- 21 MPa
💡 Hint: Remember, it’s the limit set for individual tests.
Question 2
True or False: Durability is solely determined by compressive strength.
- True
- False
💡 Hint: Think about what else contributes to durability.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a scenario where you've tested seven concrete samples yielding results of: 26, 24, 25, 21, 20, 23, and 22 MPa, calculate whether you can approve this mix for use.
💡 Hint: Assess average strength and individual results!
Question 2
If you decrease the water-cement ratio from 0.50 to 0.42 to enhance durability, what factors should you monitor?
💡 Hint: Think about how cement interacts with water and aggregates.
Challenge and get performance evaluation