Sand and gravel aggregate is the main component of concrete, which can improve the strength and stability of concrete. Concrete is a mixture of cement, sand, gravel and water, in which sand and gravel aggregate plays the role of skeleton in concrete, helping to improve the compressive strength and tensile strength of concrete. At the same time, the strength and stability of sand and gravel aggregate can also improve the durability of concrete, thereby extending the service life of the building.

Sand and gravel aggregate can also be used to make glass, because it mainly contains silicon, which is the main component of glass. It can also be used for fire fighting and fire extinguishing. It is a good flame retardant material. Some flammable places are often filled with some sand for emergency use.
The demand for sand and gravel aggregate is so wide that the production of machine-made sand has also become an important branch of the industrial field. By using jaw crushers, impact crushers（cone crusher), sand making machines, etc. and auxiliary equipment, it can be used to make sand and gravel aggregate.