Take a quick lesson in how to use a sand screen.
In this video you will learn how to use a sand screen.
A Sand Screen is a sieve used to filter fine aggregate by eliminating larger particles.
To use a Sand Screen, hold or place the sand screen at the near upright angle. You may use a wooden strip to hold it in place. Support the sand screen using bricks so that it is stable and does not slip out of position.
Lift a load of sand using a shovel and slowly let it roll down the sieve. Repeatedly run the blade of a trowel upward lifting the rolling sand over the screen until only coarse particles remain on top of it.
Heap the residual coarse particles in a pan using the trowel. Remove the supporting bricks and the sand screen from their position and collect the filtered fine sand.
You can see that there is a clear difference in quality between the fine sand and the residual coarse particles that have been removed from the raw sand.
You have now learnt to use a sand screen.