2.5. Control Measures

Try these first

1. 1.

   What is segregation in concrete?

   Hint

   Think about different sizes of particles.

2. 2.

   Name one cause of slump loss.

   Hint

   Consider conditions that affect concrete workability.

3. 3.

   What is segregation in fresh concrete?

   • A mixing process
   • The separation of concrete components
   • A type of curing

   Hint

   Consider the positioning of the concrete components.

4. 4.

   Bleeding in concrete is associated with which phenomenon?

   • True
   • False

   Hint

   Think about the water movement after pouring the concrete.

5. 5.

   A construction manager notices significant slump loss during the summer months, leading to poor concrete quality. Develop a comprehensive plan to mitigate this issue.

   Hint

   Consider temperature, transport, and mix adjustments.

6. 6.

   A project faces issues due to re-tempering of concrete hardened on site. Discuss how the project can handle this without compromising future work.

   Hint

   Focus on project management and strategies to avoid needing to add water.