The Marsh cone is a simple device for measuring viscosity by observing the time it takes a known volume of liquid to flow from a cone through a short tube.

Specification:

•The Marsh Cone ix 6 inch in diameter at the top and 12 inch long, and tapers to join a tube 2 inch ling and 3/16 inch inside dia.

•The capacity of the funnel is 1500cc.

•Time in seconds required to flow out 1000 cc of slurry from cone is measured as funnel viscosity of the material.

 

This test is simpler and more rapid than the CBR test and can be easily applied for in-situ field test. This was developed by North Dakota Highway Department. For use with pavement design method similar to that associated with CBR test.

Specification:

•The instrument consists of a rod carrying a loading platform at the top and a hardened steel cone at the bottom.

•The rod is mounted vertically and slides freely up and down in the collars of the frame and can be locked in any position as required.

•The conical tip penetrates the soil through an aperture in the cast iron base.

•The loading platform carries a graduated plunger which enters one of the side supports and permits the reading of the penetration correct to 1 mm, 

•Supplied with set of weights consists 7 nos. 5 kg weight and one hardened steel cone.

 

Soil Hydrometer is ssed for grain size analysis of soils where more than 10% of the material will pass through 75 microns I.S. sieve.

Manufactured from clear transparent glass having uniform clarity throughout the upper end on which density scale is engraved.

The scale range is 0.0995 to 1.030 density (gms/cc) at 270C. Smallest division on the scale is 0.0005.