12 - Trial Mix and Adjustments
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Practice Questions
Test your understanding with targeted questions
What does a trial mix involve?
💡 Hint: Consider the key ingredients used.
Why is the slump test important?
💡 Hint: Think about what properties workability affects.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of a trial mix in concrete design?
💡 Hint: Consider the implications of testing.
True or False: A high slump indicates low workability.
💡 Hint: Think about what a high slump means in practical terms.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A trial mix results in a slump of 20 mm when the target is 75 mm. Discuss the steps you would take to address this.
💡 Hint: Refer back to how workability is influenced in the mixing process.
You find that the compressive strength of a concrete sample at 28 days is only 22 MPa, while your target is 30 MPa. How would you adjust your mix design?
💡 Hint: Think about how strengths can be increased through mix composition.
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