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WHAT IS THE DIFFERENCE BETWEEN SOIL COMPACTION AND CONSOLIDATION?

Compaction should not be confused with consolidation. At the end of the consolidation and/or compaction process, a closer packing of soil grains results, which leads to increased shear strength and decreased compressibility and permeability.

DIFFERENCE BETWEEN COMPACTION & CONSOLIDATION
DIFFERENCE BETWEEN COMPACTION & CONSOLIDATION

Difference Between Compaction and Consolidation

Soil Compaction

  • It is a dynamic process
  • Compaction is almost instantaneous
  • Densification is due to reduction of air voids
  • Soil is always unsaturated
  • For a specific compactive effort densification takes place only up to certain limiting water content called optimum moisture content
  • Compaction is done before the construction of structure

Soil Consolidation

  • It is a static process
  • Consolidation is a static process
  • Consolidation is due to expulsion of pore water from voids
  • Soil is considered to be completely saturated
  • The process of consolidation starts as soon as the construction work begins
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