Civil Engineering

How to Reduce Bleeding in Concrete

The tendency of water to rise to the surface of freshly placed concrete is called bleeding. Bleeding causes the formation of a porous, weak and non-durable concrete layer at the top. It also increases the permeability of concrete.
 
Bleeding can be reduced by adopting the following measures:
  • Proper proportioning of ingredients and uniform & complete mixing.
  • Using pozzolanic materials.
  • Using air-entraining agents.
  • Using finer cement. 

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