Used for taking measuring settlement of soil, used as flow meter in Marshall stability test to measure deformities, strains, displacements in general.

 

The instrument consists of a piston-cylinder unit, screw press, priming pump, priming valve and test connection, all fixed on a rigid steel base. Four adjustable leveling screws are provided for leveling.

An easily removable cover is fitted to the instrument. Supplied completer with a set of weights, but without a pressure gauge. 

 

Wiley Mills are useful for preparation of materials for analysis with minimal loss of moisture of volatile constituents. The basic shearing action makes the Wiley Mill satisfactory for many materials which cannot be reduced by other mechanical means. The shearing action of the cutting edged prevents changes in the sample, such as temperature rise, moisture loss, liquefaction, contamination etc., caused by other methods like crushing and abrasion. The fan effect of the blades provides increased through put and quick clearing of the chamber.

The mill was originally designed for grinding fertilizer materials, animal hair, hoofs etc., but has now been adopted for leather, dry plant stem tissues, leaf tissues, soybeans stems, tobacco, plastics, bones. Cotton seeds, drugs and various other materials.

 

This test is conducted to evaluate the resistance of geo-synthetic / geo-textile to damage during installation due to dropping of sharp edged or sharp pointed stones on a geo-synthetic/ geo-textile directly. In this test, a geo-synthetic or geo-textile is clamped to yield a clear diameter of 150 mm and a brass cone of 45 degree angle included, having a weight of 1 kg, is dropped through a height of 500 mm. The diameter of the resultant hole is measured with a graduated conical device. The smaller the hole, the greater the resistance of geo-synthetic/ geo-textile to damage. When used in combination with other direct tensile test results, it provides a convenient means of qualitative comparison.