BLEEDING OF CONCRETE

Bleeding Of Concrete

Bleeding can be defined as the tendency of water to rise to the surface of freshly placed concrete.It is another from of segregation where some amount of water comes to the concrete surface after placing and compacting, before setting.

Effects Of Bleeding In Concrete

• Concrete loses its homogeneity due to bleeding.
• It makes concrete permeable.
• Bleeding of concrete causes high water-cement ratio.
• It delays the surface finishing in pavement construction.
• The bond between two concrete layers become weaker.

How To Reduce Bleeding In Concrete

• Reduce the water content. b
• Increase the amount of cement content.
• Increase the amount of finer particles.
• Use air-entrained admixtures.
• Design the concrete mix properly.
• Use cementitious materials with finer particles.
• Use rounded natural sand rather than an angular.