Liquid Limit Device Test

Make: AMV Scientific Co.

Model: AMV-SE-40014

Origin: India

Casagrande method in mechanical form is known as liquid limit method and has been in use for soil mechanics for a number of decades. The liquid limit data of soils is useful to correlate mechanical properties of soil, such as compressibility and lower shear strength.

AMV liquid limit test is that water content at which a part of soil, cut by a groove of standard dimensions, will flow together for 1.25cm under an impact of 25 blows in a standard liquid limit apparatus. The soil at the water content has some strength which is about 0.17N/cm. sq. (17gms/sq.cm).

Liquid limit is the water content at which soil passes from zero strength to an infinite strength, hence the true value of liquid limit cannot be determined. For determination, purpose liquid limit is the water content at which a part of the soil, cut by a groove of standard dimensions, will flow together for a distance of 1.25cm under an impact of 25 blows in a standard liquid limit apparatus. The soil at the water content has some strength which is about 0.17N/cm. sq. (17gms/sq.cm.). At this water content soil just passes from liquid state to plastic state.

A liquid limit test of soil can be determined using two methods:

• The Casagrande cup method, which is widely used in the United States, defines liquid limit as the moisture content required to close a metal cup filled with soil paste 0.5 inches using a liquid limit machine. This method is normally run at several moisture contents to determine which requires 25 blows to close the groove.
• The cone penetration test for liquid limit is more prevalent in Europe and measures the moisture content at which a cone will penetrate a soil sample 20 mm in approximately 5 seconds. This less is less dependent on the operator when determining a soil’s liquid limit.
• In each testing type, many data points are collected and used to plot a flow curve which ultimately establishes a liquid limit. To ensure an accurate curve, high-quality equipment must be used in these tests. These liquid limit machines and accessories should follow ASTM standards and produce error-free results time and time again.

AMV scientific are leading liquid limit test manufacturers, suppliers and exporters in Delhi, India. AMV liquid limit set is used for correlate mechanical properties of soil, such as compressibility and lower shear strength. Liquid limit is the water content at which soil passes from zero strength to an infinite strength, hence the true value of liquid limit cannot be determined.