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What does the Los Angeles abrasion test measure?

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Question: What does the Los Angeles abrasion test measure?

Options:

  1. The compressive strength of concrete
  2. The durability of aggregates
  3. The water absorption of aggregates
  4. The fineness of cement

Correct Answer: The durability of aggregates

Solution: 

The Los Angeles abrasion test measures the durability of aggregates by assessing their resistance to wear and degradation.

What does the Los Angeles abrasion test measure?

Practice Questions

Q1
What does the Los Angeles abrasion test measure?
  1. The compressive strength of concrete
  2. The durability of aggregates
  3. The water absorption of aggregates
  4. The fineness of cement

Questions & Step-by-Step Solutions

What does the Los Angeles abrasion test measure?
Correct Answer: Durability of aggregates
  • Step 1: Understand that aggregates are materials like sand, gravel, or crushed stone used in construction.
  • Step 2: Know that the Los Angeles abrasion test is a laboratory test.
  • Step 3: The test involves placing a sample of aggregates in a rotating drum with steel balls.
  • Step 4: As the drum rotates, the aggregates are subjected to friction and impact from the steel balls.
  • Step 5: After a set amount of time, the aggregates are removed and their weight is measured.
  • Step 6: The amount of weight lost during the test indicates how much wear and degradation the aggregates experienced.
  • Step 7: A lower weight loss means the aggregates are more durable and resistant to wear.
  • Durability of Aggregates – The Los Angeles abrasion test evaluates how well aggregates can withstand mechanical wear and degradation.
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