7.6.2. Mineral Admixtures

Try these first

1. 1.

   What is a mineral admixture?

   Hint

   Think about what is added to enhance concrete.

2. 2.

   Name one benefit of using Fly Ash in concrete.

   Hint

   It’s a byproduct of coal combustion.

3. 3.

   What is one of the primary functions of mineral admixtures?

   • To reduce concrete cost
   • To improve cohesiveness
   • To increase curing time

   Hint

   Think about how they affect the mixing process.

4. 4.

   True or False: Silica Fume is a natural mineral.

   • True
   • False

   Hint

   Consider its production process.

5. 5.

   Given the same batch of concrete, analyze the potential outcomes if only Fly Ash was added compared to adding a combination of Fly Ash and Silica Fume.

   Hint

   Compare the individual properties of Fly Ash and Silica Fume.

6. 6.

   Evaluate the impact of using GGBS in a heavily loaded structural element over a long duration versus using only Portland cement.

   Hint

   Think about the long-term behavior of concrete under stress.