17.5.5 - Step 5: Selection of Aggregate Ratio and Grading
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Practice Questions
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Define coarse aggregate in the context of concrete mix design.
💡 Hint: Think about the size of the aggregate.
What is a grading limit?
💡 Hint: Consider how sizes are classified.
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Interactive Quizzes
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What is the primary focus when selecting aggregate ratios for concrete mix design?
💡 Hint: Remember the relationship between aggregates and performance.
True or False: Zone II sand is preferred in concrete mix for its compatibility with other aggregates.
💡 Hint: Think about classifying sands.
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Challenge Problems
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Design a concrete mix for a pavement considering varying traffic loads. Discuss how you would select the aggregate ratio and what grading limits to consider.
💡 Hint: Reflect on how aggregates contribute to load-bearing capacity.
Imagine a scenario where a concrete pavement fails prematurely. Assess how improper aggregate selection could lead to this issue and propose remedial actions.
💡 Hint: Think about the physical properties affected by the aggregates.
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