What Is Compaction?
What Is Consolidation?
Consolidation is the compaction of soil by the expulsion of water from voids of the soil.
Consolidation is a process by which soils decrease in volume. According to Karl von Terzaghi “consolidation is any process which involves a decrease in water content of saturated soil without replacement of water by air.”
Compaction Vs. Consolidation
|1||Compaction is a quick process.||Consolidation is a slow process.|
|2||Compaction is the compression of soil by the expulsion of air from the voids of the soil.||Consolidation is the compression of soil by the expulsion of water from the voids of the soil.|
|3||It is a process where mechanical pressure is used to compress the soil mass for the purpose of soil improvement.||It is a process where steady and static pressure causes compression of saturated soil.|
|4||Dynamic loads by rapid mechanical methods like vibration, damping, and rolling are applied for a small interval in soil compaction.||Static and sustained loading is applied for a long interval in soil consolidation.|
|5||The compaction process can be completed immediately.||Consolidation is a slow and steady process that takes time.|
|6||Compaction is an instantaneous process of reduction of volume of voids.||Consolidation is a time-dependent process of reduction of volume.|
|7||Compaction is an artificial process.||Consolidation is a natural process.|
|8||Compaction can be done before the construction.||It can not be done before the construction. There are some methods by which consolidation can be done before construction but 100% consolidation cannot be achieved.|
|9||Compaction is done to attain maximum dry density at optimum moisture content.||loading period is long. It may take many years for 100% consolidation.|
|10||All kind of soil whether it is cohesive or noncohesive can be compacted.||Consolidation occurs naturally due to the structural load from the foundation.|
|11||Compaction of soil is mainly used for sandy soil.||The consolidation of soil is mainly used for clayey soil.|
|12||Compaction is intentionally done to produce a high unit weight of soil and consequently improve other soil properties.||Consolidation is a natural process where soil below the building and other structures compacted by the transferred load to the soil through the provided foundation system.|
|13||The foundation settlement will be reduced.||Consolidation is the responsibility of the foundation settlement.|
|14||The soil should be at OMC (Optimum Moisture Content )||The soil is saturated to settle down the particles.|
|15||The bearing capacity of soil will increase.||Also, increase the bearing capacity of soil|
|16||The compaction Loading period is short.||Consolidation applies only for cohesive soils, especially for low permeable clay.|
|17||Compaction is a stage process.||Consolidation is a two-stage process that is Primary consolidation and Secondary consolidation.|
|18||Compaction is the primary process.||Consolidation starts after compaction.|