2.3. Causes

Try these first

1. 1.

   What is segregation in concrete?

   Hint

   Remember the impact of particle size on composition.

2. 2.

   Name one cause of bleeding in concrete.

   Hint

   Think about the mix ratio you may have learned.

3. 3.

   What does segregation in concrete refer to?

   • Uniform distribution of components
   • Separation of components
   • Improved durability

   Hint

   Think about how components interact in a mix.

4. 4.

   Bleeding occurs when water rises to the surface of freshly placed concrete.

   • True
   • False

   Hint

   Focus on the behavior of water in the concrete matrix.

5. 5.

   A contractor is facing severe segregation in their concrete mix despite following guidelines. Analyze the situation and recommend a set of practical improvements to the mixing and pouring processes.

   Hint

   Consider reviewing the entire process from mix design to placement.

6. 6.

   A concrete sidewalk showed severe cracks due to bleeding. Discuss possible responses that could help mitigate similar issues in future projects.

   Hint

   Focus on the composition of the concrete mix during preparation.