Properties of Raw Materials Used in Ceramics, Refractories, and Glasses

11 Properties of Raw Materials Used in Ceramics, Refractories, and Glasses 

Raw material Apparent density Bulk density Bond s work index Abrasion Average price (2006) 

The Bond s index is the energy per unit mass of material required to grind it from until 80 vrt.% pass 325 mesh, here it is expressed in KWh per short ton (2000 lb.). 

The abrasion index is defined as the mass fraction lost by a steel padle beating during 1 hour a charge of 1.6 kg of the material having pellets dimension 3/4 in x 1/2 in with 80 wt.% of the final final product passing 13.25 mm. 

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