1.2. Permeability

Try these first

1. 1.

   What does permeability measure?

   Hint

   Think about what would happen if water enters concrete.

2. 2.

   Name one factor that affects permeability.

   Hint

   There are several factors; consider how they change the structure.

3. 3.

   What is permeability in the context of concrete?

   • Ability to hold water
   • Rate at which water can pass through
   • Strength of concrete

   Hint

   Think about how water behaves with concrete.

4. 4.

   True or False: A higher water-cement ratio generally increases the durability of concrete.

   • True
   • False

   Hint

   Relate this to density and fluid movement.

5. 5.

   Design a concrete mix for an environment prone to freeze-thaw cycles. What considerations regarding permeability would you include?

   Hint

   Think about how each component interacts with the environment.

6. 6.

   Analyze how increasing the porosity of concrete through aggregate choice affects its permeability and long-term durability.

   Hint

   Consider the relationship between pores and water movement.