Water-washed burnt iron scrap is a common building material, which is mainly used in road engineering, bridge engineering, tunnel engineering, wharf engineering, construction engineering and other fields such as cement concrete and asphalt mixture.

Specifically, the washed and calcined iron scrap can be used as the filling layer and supporting layer in road base, pavement and railway ship port engineering. Because of its advantages of high density, high strength and good durability, it is used as the main component material of slope protection, dike and cofferdam structure.

In addition, in the field of building engineering, iron filings fired by water washing are also widely used to manufacture concrete structures and other building decoration materials.