6. Mineral Admixtures

Try these first

1. 1.

   What are mineral admixtures?

   Hint

   Think about materials enhancing concrete quality.

2. 2.

   Name one type of pozzolanic admixture.

   Hint

   It's a by-product of burning coal.

3. 3.

   What are mineral admixtures used for in concrete?

   • To improve strength
   • To decrease costs
   • To enhance workability
   • All of the above

   Hint

   Think about all benefits of mineral admixtures.

4. 4.

   Fly ash is a type of _____ admixture.

   • Hydraulic
   • Pozzolanic
   • Inert filler
   • None of the above

   Hint

   Consider how fly ash reacts in concrete.

5. 5.

   Analyze a concrete mix used in a coastal environment containing GGBS. What advantages might this offer compared to a standard Portland cement mix?

   Hint

   Consider what challenges marine exposure presents.

6. 6.

   Design a high-performance concrete using silica fume. What dosages and considerations will you use for optimal performance?

   Hint

   Focus on the unique properties that silica fume contributes.