2.4. Effects

Try these first

1. 1.

   What is segregation in concrete?

   Hint

   Think of how different sizes of materials could sort themselves out.

2. 2.

   Name one effect of bleeding.

   Hint

   What happens when water rises to the surface?

3. 3.

   What is segregation in concrete?

   • Separation of components
   • Increase in workability
   • Surface finishing
   • None of the above

   Hint

   Focus on the mixing process and its outcomes.

4. 4.

   True or False: Bleeding is beneficial for concrete curing.

   • True
   • False

   Hint

   Think about the effects of excess water on surface strength.

5. 5.

   A construction site experiences excessive segregation while pouring concrete for a footing. Identify three factors that could contribute to this issue, and propose immediate corrective actions.

   Hint

   Think about how mixing properties interact with placement techniques.

6. 6.

   You have two concrete mixes: Mix A has a water-cement ratio of 0.6, and Mix B has 0.4. Analyze the implications of each on bleeding and long-term durability.

   Hint

   Consider the relationship between water content and concrete's structural integrity.