Practice Aggregates (2) - Cement - Civil Engineering Materials, Testing & Evaluation - Vol 1

Practice: Aggregates

Lesson 2Cement

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10 questions

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3 cards from this section. Quick, good the night before a test.
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Quiz
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6 sample questions

Question 1.
What are fine aggregates?
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Think about smaller particles that help with concrete's workability.
Question 2.
Why is grading important for aggregates?
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Consider how the size distribution might affect strength.
3Question 3.
What are aggregates primarily used for in concrete?
- To bind other materials
- To occupy space and provide bulk
- To reduce weight
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Think about the composition of concrete.
4Question 4.
True or False: Coarse aggregates can be larger than 40 mm.
- True
- False
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Recall the standard classification sizes for aggregates.
Question 5.
Given an aggregate with a water absorption rate of 6%, calculate how this would affect the water-cement ratio when using a mix design for concrete. If the specific gravity of the aggregate is 2.5, what considerations must be placed in the design?
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Recall how absorption impacts mixing ratios.
Question 6.
If an engineer has both rounded and angular coarse aggregates, explain how to decide which is more appropriate for a specific concrete application.
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Consider the function of the concrete in the overall structure.

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