[Swede]

Hi, all. Does anyone know how to test sand to see if it ok to use in concrete. I know years ago they used to put sand in a jar and shake it up and as it settled the particles separated. I thought there might be somewhere on the web that described the method but can't find any. Can anyone help?

 

[Bob Mariani]

We just look and feel the sand. For concrete you want larger sand granules with sharp edges. For masonry work use much finer, softer feeling sand.