Correct Answer:
Option B - Casagrande’s Apparatus is used to determine liquid limit of the soil.
• It is the minimum water content at which the soil is still in the liquid state, but has a small shearing strength (2.7 kN/m²) against flowing.
• It is the minimum water content at which part of a soil cut by a groove of standard dimensions will flow together for a distance of 12 mm under an impact of 25 blows in the device.
Atterberg's limit– Mostly used for fine grained soil. Atterberg divided the entire range from liquid to solid state into four stages.
(1) Liquid state (2) Plastic state
(3) Semisolid state (4) Solid state
B. Casagrande’s Apparatus is used to determine liquid limit of the soil.
• It is the minimum water content at which the soil is still in the liquid state, but has a small shearing strength (2.7 kN/m²) against flowing.
• It is the minimum water content at which part of a soil cut by a groove of standard dimensions will flow together for a distance of 12 mm under an impact of 25 blows in the device.
Atterberg's limit– Mostly used for fine grained soil. Atterberg divided the entire range from liquid to solid state into four stages.
(1) Liquid state (2) Plastic state
(3) Semisolid state (4) Solid state