Question
Download Solution PDFSelect the correct option for the given statements.
Statement
1: Consolidation is due to a reduction in the volume of air voids at a given water content.
Statement
2: In compaction volume reduction is due to expulsion of pore water from voids.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Compaction:
- Compaction is defined as the instantaneous process to decrease the volume of soil and increase the density of soil (or densification of soil) by the decreasing volume of air voids at a given water content due to applying of mechanical energy (sudden or impact load).
Consolidation:
- Consolidation is defined as the process to decrease soil volume and increase the density of soil by the squeezing out (expulsion) of the pore water on account of the gradual dissipation of excess hydrostatic pressure induced by an imposed total stress.
| Compaction | Consolidation |
| It is an almost instantaneous phenomenon. | It is a time-dependent phenomenon. |
| Soil is always unsaturated. | Soil is completely saturated. |
| Densification is due to a reduction in the volume of air voids at a given water content. | Volume reduction is due to the expulsion of pore water from voids. |
| Specified compaction techniques are used in this process. | Consolidation occurs on account of a load placed on the soil. |
Hence both statements are false.
Last updated on May 28, 2025
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