Practice Testing Of Aggregates (5.4) - Aggregates – Properties, Grading, Testing

Practice: Testing of Aggregates

Lesson 5.4Aggregates – Properties, Grading, Testing

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9 questions

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6 sample questions

Question 1.
What do we use sieve analysis for?
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Think about how important the size of aggregates is in concrete.
Question 2.
What does a lower Aggregate Crushing Value indicate?
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Remember, lower is better for the structure.
3Question 3.
What does sieve analysis determine?
- Particle size distribution
- Aggregate shape
- Moisture content
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Remember how the process sorts different sizes.
4Question 4.
True or False: A higher Aggregate Impact Value is desirable for concrete applications.
- True
- False
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Think about the resilience needed in concrete.
Question 5.
Given an aggregate sample with an ACV of 25%, explain what this indicates about the quality of the aggregate and how it might affect a concrete mix design.
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Consider how the ACV impacts structural longevity.
Question 6.
Discuss how you would approach determining the specific gravity of an unknown aggregate sample using a coil as a reference. Include the necessary calculations.
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Think about the displacement method related to specific gravity.

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