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What is the main function of fly ash in concrete?

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Question: What is the main function of fly ash in concrete?

Options:

  1. To increase the density
  2. To reduce shrinkage
  3. To enhance workability
  4. To improve long-term strength

Correct Answer: To improve long-term strength

Solution: 

Fly ash is used in concrete to improve long-term strength and durability, as well as to enhance workability.

What is the main function of fly ash in concrete?

Practice Questions

Q1
What is the main function of fly ash in concrete?
  1. To increase the density
  2. To reduce shrinkage
  3. To enhance workability
  4. To improve long-term strength

Questions & Step-by-Step Solutions

What is the main function of fly ash in concrete?
  • Step 1: Understand what fly ash is. Fly ash is a byproduct from burning coal in power plants.
  • Step 2: Learn that fly ash can be added to concrete mixtures.
  • Step 3: Know that one main function of fly ash is to improve the long-term strength of concrete, making it stronger over time.
  • Step 4: Recognize that fly ash helps make concrete more durable, meaning it can withstand wear and tear better.
  • Step 5: Realize that fly ash also improves workability, which means it makes the concrete easier to mix and pour.
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