Cohesionless Soil Definition and Compaction

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Cohesionless Soil Definition and Compaction РThis article is about Cohesionless Soil. In this article we are trying to provide you complete information about this soil. We have arranged the information in this post to make you understand it easily. We hope that you can understand it well. Please check the information below.

What is cohesionless soil ?

Talking about soil, there is one kind of soil that we call it cohesionless soil. What is that? According several sources,

Any free-running type of soil, such as sand or gravel, whose strength depends on friction between particles Also called frictional soil. (

The term ‘Cohesionless materials (cohesionless soils)’ as it applies to the area of reclamation can be defined as ‘ Soil materials that when unconfined have little or no strength when air-dried and that have little or no cohesion when submerged. Soil that has little tendency to stick together whether wet or dry, such as sands and gravels’. (

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cohesionless soil

Cohesionless Soil Compaction

For cohesionless soils (or soils without any fines), the standard compaction tests are difficult to perform. For compaction, application of vibrations is the most effective method. Watering is another method. The seepage force of water percolating through a cohesionless soil makes the soil grains occupy a more stable position. However a large quantity of water is required in this method. To achieve maximum dry density, they can be compacted either in a dry state or in a saturated state. (

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