define atterbergs limit

Q) Define atterbergs limit 

Atterbergs Limit:- 

Atterberg limits are a set of tests used to determine the consistency of fine-grained soils by measuring the water content at which the soil transitions between different states. 

 Liquid Limit:-

Determined using the Casagrande method, which involves dropping a cup containing the soil sample and measuring the number of blows required for a groove in the soil to close.

 

Plastic Limit:-

Determined by rolling a thread of soil until it crumbles at a specific diameter, indicating the point where the soil transitions from plastic to semi-solid. 

 Shrinkage Limit:- 

Determined by measuring the water content at which further drying does not cause a further reduction in volume.