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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula to calculate the target flexural strength?
💡 Hint: Think about how we adjust the characteristic strength.
Question 2
Easy
What is the maximum size of aggregates used for M40 concrete?
💡 Hint: Refer back to the design parameters.
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 target flexural strength calculated for M40 concrete?
- 4.5 MPa
- 5.49 MPa
- 6 MPa
💡 Hint: Remember the formula for calculating target strength.
Question 2
True or False: A lower water-cement ratio improves the workability of concrete.
- True
- False
💡 Hint: Consider the balance required for both workability and strength.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A new specification requires increasing the target flexural strength to 5.5 MPa due to higher environmental demands. How would you adjust the water-cement ratio to achieve this considering the original ratio was 0.38?
💡 Hint: Consider how to maintain the balance between strength and shrinkage.
Question 2
If upon testing, your actual flexural strength of a trial mix only reached 3.8 MPa, what remedial actions could you take in future designs?
💡 Hint: Reflect on improving the mix design adjustments.
Challenge and get performance evaluation