
Different Types of Sand and What They Should be Used for ...
Sand itself sits between gravel and silt with its grains being smaller than those that make up gravel but larger than those that make up silt. As a general rule, sand is classified as such if its particles range from 2mm at largest down to at their smallest. As we briefly mentioned above, sand is arguably one of the most used materials in the building trade. It's used to make concrete ...