Practice Grading Of Aggregates (2.3) - Cement - Civil Engineering Materials, Testing & Evaluation - Vol 1

Practice: Grading of Aggregates

Lesson 2.3Cement

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10 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is grading in terms of aggregates?
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Think about how different sizes affect concrete.
Question 2.
Name the two main categories of aggregates.
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Consider their size relative to the 4.75 mm sieve.
3Question 3.
What is the primary goal of aggregate grading?
- To achieve maximum voids
- To minimize voids
- To maximize surface area
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Think about how packing affects concrete quality.
4Question 4.
True or False: Coarse aggregates are those that pass through a 4.75 mm sieve.
- True
- False
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Recall the definitions based on sieve sizes.
Question 5.
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.
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Consider how the void content and aggregate size affect the concrete's water requirement.
Question 6.
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.
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Focus on how the proportion of sizes impacts concrete performance.

6 more questions in this section. Enroll free to practise them all.