7.1.5. Bleeding

Try these first

1. 1.

   What is bleeding in fresh concrete?

   Hint

   Think about what happens as concrete settles.

2. 2.

   Name one method to control bleeding in concrete.

   Hint

   Consider what can be added to the mix.

3. 3.

   What does bleeding refer to in concrete?

   • A drying process
   • Water emergence
   • Aggregate separation

   Hint

   Recall the definition of the term.

4. 4.

   True or False: Excessive bleeding can improve the strength of concrete.

   • True
   • False

   Hint

   Consider how water affects concrete's integrity.

5. 5.

   Analyze a batch of concrete that showed significant bleeding. What steps would you take to redesign the mix to mitigate this issue?

   Hint

   Focus on the ratio and the types of materials used.

6. 6.

   Evaluate a case where a concrete structure suffered from high permeability due to bleeding. How would you assess and address the structural implications?

   Hint

   Think about the structure's environment and how it might be affected.