18.7.2. Workability Adjustment

Try these first

1. 1.

   What is workability in the context of concrete?

   Hint

   Think about how concrete behaves during mixing.

2. 2.

   Name one method to increase the workability of concrete.

   Hint

   It's an admixture that enhances flow.

3. 3.

   What is the easiest way to increase the workability of concrete?

   • Add more gravel
   • Add superplasticizer
   • Add more cement

   Hint

   Focus on additives that enhance flow.

4. 4.

   True or False: Adding too much water increases the strength of concrete.

   • True
   • False

   Hint

   Think critically about water's effects on concrete.

5. 5.

   You are tasked to prepare a concrete mix for a structural sandwich panel. It needs maximum strength but must be workable enough for placement without segregation. Propose a balanced mixture adjust plan.

   Hint

   Think about how the structural requirements affect your mix.

6. 6.

   During a hot summer day, you've mixed concrete that is too workable and prone to bleeding. Outline a strategy for adjustments to maintain the necessary strength.

   Hint

   Contemplate what happens in high temperature conditions for concrete.