2.3 - Grading of Aggregates
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Practice Questions
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What is grading in terms of aggregates?
💡 Hint: Think about how different sizes affect concrete.
Name the two main categories of aggregates.
💡 Hint: Consider their size relative to the 4.75 mm sieve.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary goal of aggregate grading?
💡 Hint: Think about how packing affects concrete quality.
True or False: Coarse aggregates are those that pass through a 4.75 mm sieve.
💡 Hint: Recall the definitions based on sieve sizes.
2 more questions available
Challenge Problems
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A concrete mix design is planned using aggregates classified as Zone III. Discuss the expected properties and challenges of using these aggregates compared to those from Zone I.
💡 Hint: Consider how the void content and aggregate size affect the concrete's water requirement.
Calculate the grading of an aggregate blend using 60% fine aggregates (Zone II) and 40% coarse aggregates (Zone I). Discuss how this blend may perform in terms of workability and strength.
💡 Hint: Focus on how the proportion of sizes impacts concrete performance.
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