Concrete sand is and aggregate sand usually composed of either gneiss, trap rock, limestone or granite. Usually it is crushed at the quarry and then washed through a screen to ensure that there are no large pieces of rocks left in it.

It is most commonly used to as a key ingredient in cement or hot asphalt but can also be used as pipe sand or as a base layer and leveling medium for above ground pools, and patios or walkways made of concrete paving stones.

---

• Tweet