Effect of CaF2 on Properties of Graphite Tailings Brick
Graphite tailings is an industrial waste produced in the process of graphite production,which not only occupies farmland,but also seriously damages the environment and harms the health of local residents.In order to solve the problem of graphite tailings,this paper uses graphite tailings and clay as main raw materials to make bricks,so as to realize the purpose of recycling graphite tailings and creating certain economic value.In this paper,0.5％,1％,1.5％,2％ and 2.5％ CaF2 were added to the raw materials of graphite tailings brick,and the influence of CaF2 on the properties of graphite tail-ings brick was studied.It was found that with the increase of fluorite content,the compressive strength first increased and then decreased,the dimensional deviation gradually increased,the bulk density grad-ually increased and the water absorption decreased.
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