Consider the following statements about the Fly Ash:

  1. It is a by product created by burning pulverized coal in an electric power plant
  2. It is used in concrete to increase the life cycle expectancy and its durability 
  3. Bricks made from residual fly ash are cheaper and of equivalent strength to that of conventional mud bricks

    Which of the above is / are correct statements?

Answer: [D] 1, 2 & 3

All given statements are correct
Uses of Fly Ash

  • Fly Ash was once discarded as a waste but today, it is increasingly emerging as a major input material in several industries including cement, agriculture, construction, Paints etc.
  • Fly Ash is added as a mixture to cement for building construction, laying of roads and landfills.
  • The bricks and blocks made of fly-ash are stronger and cheaper than conventional bricks
  • Fly ash can help transform barren wasteland into lush green forests
  • Pigments extracted from Fly Ash can be very useful in manufacturing of paints

This question is a part of GKToday's Integrated IAS General Studies Module