Properties of Comminuted Materials

In any particular comminution operation of hard materials, more than one type of the previously described forces is actually present. Regardless of the uniformity of the feed material, the product always consists of a mixture of 

A product specification will commonly require a finished product not to contain particles greater than (or smaller than, depending on the application) some specified size. In comminution practice, particle size is often referred as screen aperture size as defined in Chapter 2). The reduction ratio, defined 

---