What is the purpose of using fly ash as a supplementary cementitious material?
Practice Questions
Q1
What is the purpose of using fly ash as a supplementary cementitious material?
To increase the weight of concrete
To improve workability and reduce permeability
To decrease the setting time
To enhance the color of concrete
Questions & Step-by-Step Solutions
What is the purpose of using fly ash as a supplementary cementitious material?
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 as a supplementary material.
Step 3: Know that adding fly ash helps improve the workability of concrete, making it easier to mix and pour.
Step 4: Recognize that fly ash reduces the permeability of concrete, which means it helps prevent water and other substances from entering.
Step 5: Understand that by improving workability and reducing permeability, fly ash contributes to the overall durability of concrete, making it last longer.
