6.7.1. Properties and Effects

Try these first

1. 1.

   What is a natural pozzolan?

   Hint

   Think about materials like volcanic ash.

2. 2.

   How does fineness affect pozzolans?

   Hint

   Consider the size of the particles.

3. 3.

   Natural pozzolans improve the durability of concrete. True or False?

   • True
   • False

   Hint

   Recall what makes concrete last longer.

4. 4.

   Which of the following is a natural pozzolan?

   • Fly Ash
   • Volcanic Ash
   • Silica Fume

   Hint

   Think about the sources of these materials.

5. 5.

   Evaluate the impact of using volcanic ash as a natural pozzolan in a coastal construction project.

   Hint

   Consider the environmental exposure on durability.

6. 6.

   Design a concrete mix for a high-performance structure using natural pozzolans. What considerations will you include?

   Hint

   Think about the interaction between pozzolans and cement.