Practice Los Angeles Abrasion Test (is 2386 Part Iv) (5.4.5) - Aggregates – Properties, Grading, Testing

Practice: Los Angeles Abrasion Test (IS 2386 Part IV)

Lesson 5.4.5Aggregates – Properties, Grading, Testing

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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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6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the Los Angeles Abrasion Test used for?
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Think about what properties aggregates need in construction.
Question 2.
What is a desirable Los Angeles Abrasion Value for aggregates?
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Recall our discussion about durability.
3Question 3.
What does the Los Angeles Abrasion Test assess?
- Concrete strengths
- Abrasion resistance of aggregates
- Mixing procedures
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Focus on the primary purpose of the test.
4Question 4.
True or False: A higher LAAV indicates better performance for aggregates.
- True
- False
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Remember what we defined as acceptable values.
Question 5.
An aggregate sample weighs 600g before the Los Angeles Abrasion Test and 550g afterwards. What is the LAAV? Discuss its suitability for a structural application.
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Calculate the wear and compare to the standards discussed in class.
Question 6.
Explain the steps you would take if test results showed an LAAV of 35%. Describe recommendations for potential changes in aggregate sourcing.
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Think about the implications of the test results on construction projects.

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