10.2. Chemical Admixtures

Try these first

1. 1.

   What is a chemical admixture?

   Hint

   Think about what you would add to improve concrete.

2. 2.

   Name one type of chemical admixture.

   Hint

   Recall from our discussion on types.

3. 3.

   What is the primary purpose of chemical admixtures?

   • To add bulk
   • To improve concrete properties
   • To reduce cost

   Hint

   Think about why a builder would want to add something to concrete.

4. 4.

   True or False: Superplasticizers only reduce the amount of cement used.

   • True
   • False

   Hint

   Consider what superplasticizers do in a mix.

5. 5.

   You are tasked with designing a concrete mix for a coastal structure. What chemical admixtures would you consider and why?

   Hint

   Consider the specific environmental challenges faced in coastal areas.

6. 6.

   Explain how using chemical admixtures can save costs in the long run for a construction project.

   Hint

   Think about how stronger concrete can be both a financial and structural advantage.