9.1.1 - Compressive Strength
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Practice Questions
Test your understanding with targeted questions
Define compressive strength in concrete.
💡 Hint: Think about what happens when concrete is pushed vertically.
What is a common standard test to measure compressive strength?
💡 Hint: This test uses what shape for the concrete sample?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the term for the resistance of concrete to axial loads?
💡 Hint: Remember the main strength criteria for concrete.
True or False: A lower water-cement ratio tends to decrease the compressive strength of concrete.
💡 Hint: Consider how water affects concrete density.
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Challenge Problems
Push your limits with advanced challenges
If a concrete mix is designed with a water-cement ratio of 0.6, what would be the expected implications on its compressive strength compared to a design with a ratio of 0.4? Calculate the potential percentage difference if compressive strength at 0.4 is known to be 40 MPa.
💡 Hint: Refer to the impact of water-cement ratio discussed earlier.
You are tasked with designing a new concrete mix for a high-rise building that requires a minimum compressive strength of 80 MPa. Discuss the steps and considerations you would take in preparing this mix, including material selection and testing methods.
💡 Hint: Think about how factors talked about earlier can help enhance strength while meeting design criteria.
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