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State whether the following is true or false.
Autogenous shrinkage is most pronounced in high water to cement ratio concrete.

  • A.True
  • B.False
  • C.True only at large scales
  • D.False only at small scales

Answer: B

It is most pronounced at low ratios, where there is little free water and self-desiccation sets in as hydration proceeds. High-strength concrete is therefore more prone to it than ordinary mixes. Internal curing with saturated lightweight aggregate can offset it.

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