7.7.3. Bleeding at Top Surface

Try these first

1. 1.

   What is bleeding in concrete?

   Hint

   Think about what happens to water in a mix when it starts to set.

2. 2.

   Why is excess water in the mix a problem?

   Hint

   How does extra water affect the concrete's strength?

3. 3.

   What is bleeding in concrete?

   • The emergence of water on the top surface
   • The hardening of concrete
   • The incorporation of air in concrete

   Hint

   Focus on the process that happens during concrete setting.

4. 4.

   True or False: A higher water-cement ratio can lead to increased bleeding.

   • True
   • False

   Hint

   Consider how water in a mix influences its behavior.

5. 5.

   Consider a concrete mix that shows significant bleeding after placement. Describe a plan to diagnose the issue and propose at least three corrective actions.

   Hint

   Think about the mix components and how they interact during hydration.

6. 6.

   You have been tasked with designing a concrete mix for a structure that faces high waterproofing requirements. Discuss how you would address potential bleeding issues in your mix design.

   Hint

   Consider your mix choices and their implications for waterproofing.