WHAT ARE THE EFFECTS ON CONCRETE DUE TO SEGREGATION?

Following are the effects on concrete due to segregation.

Segregation in Concrete
Segregation in Concrete

Effects on Concrete

  • A segregated concrete is very weak in strength
  • Due to segregation after placing, the concrete in the lower part of a pour of any significant depth can be stronger than that in the upper part.
  • Segregated concrete does not give a homogeneous mass throughout the structure
  • Rock pockets, sand streaks and porous layers in hardened concrete are the result of segregation.
  • Due to segregation excess mortar comes to the top of the surface, which causes plastic shrinkage cracks.
  • A segregated concrete is difficult to compact properly.
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