12. Applications of Admixtures in Special Concrete Types

Try these first

1. 1.

   What are the two main types of admixtures used in concrete?

   Hint

   Think about the categories based on their effects.

2. 2.

   Name one application of Self-Compacting Concrete.

   Hint

   Consider where vibration is not feasible.

3. 3.

   What type of admixtures are used to enhance flowability in Self-Compacting Concrete?

   • Superplasticizers
   • Corrosion Inhibitors
   • Accelerators

   Hint

   Consider what allows SCC to form naturally.

4. 4.

   True or False: High-Performance Concrete requires additives to achieve its desired properties.

   • True
   • False

   Hint

   Think about its special properties.

5. 5.

   Evaluate the impact of using high levels of fly ash in High-Performance Concrete. What potential benefits and drawbacks could emerge?

   Hint

   Consider both sides about strength versus environment.

6. 6.

   Propose a construction scenario where fiber reinforcement would significantly improve performance. Discuss how you would select fiber types.

   Hint

   Consider the location and purpose for the fibers' selection.