Tenders Description & Specification for Liquid Limit Devices (Casagrande)
Liquid Limit Devices (Casagrande)
Specification:
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. 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 that water content at which a
part of 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. It consists on a brass
cup held on an adjustable bracket.
The cup can be adjusted for a fall of 1 cm and can be raised an dropped
on a rubber base of standard hardness by cam action. Complete with one
Casagrande grooving tool, one ASTM grooving tool and a height gauge
block. A counter to register the number of blows
Ltekonline are the manufacturers of Liquid Limit Devices (Casagrande) used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Soil Testing Lab Equipment for Engineering Teaching Lab in Universities
Categories: Soil Testing Lab Equipment