Wet sieve shaker machine

Listing ID #4896606

The objective of the wet sieve test is to obtain basic index information about the soil, that can be used to estimate strength and permeability. It is the primary form of classification for granular soils.

There are some materials which, when tested dry, produce less than accurate particle analysis results. If the material is not soluble in water and reproducible results are difficult to obtain, then wet testing may be the method required to produce accurate data. This kit offers an alternative to hand wet wash sieving using a single tall-frame wet wash sieve. It has been specifically designed for use with the Weiber wet Ro-Tap sieve shaker and a stack of standard full-height testing sieves.

A gradation test is performed on a sample of aggregate in a laboratory. A typical sieve analysis involves a nested column of sieves with wire mesh cloth (screen). A representative weighed sample is poured into the top sieve which has the largest screen openings. Each lower sieve in the column has smaller openings than the one above. At the base is a round pan, called the receiver.

The column is typically placed in our wet sieve shaker. The shaker shakes the column, usually for some fixed amount of time. After the shaking is complete the material on each sieve is weighed. The weight of the sample of each sieve is then divided by the total weight to give a percentage retained on each sieve.

The size of the average particles on each sieve then being analysis to get the cut-point or specific size range captured on screen.

The results of this test are used to describe the properties of the aggregate and to see if it is appropriate for various civil engineering purposes such as selecting the appropriate aggregate for concrete mixes and asphalt mixes as well as sizing of water production well screens.