Short Note on Atterberg limits

  Atterberg limits

The consistency limits are called Atterberg limits. These limits were first demonstrated by Atterberg in 1911, a Swedish soil scientist.

His limits are based on the concept that a fine grained soil can exist in any of the four states i.e. solid, semi-solid, plastic and liquid. Therefore, Aterberg limits, most useful for civil engineering purposes are:-

• Liquid limit:- The boundary between liquid and plastic state of soil.

• Plastic limit:- The boundary between plastic and semi-solid state of soil.

• Shrinkage limit:- The boundary between semi-solid and solid state of soil .