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Construction aggregate or simply quot aggregate quot is a broad category of coarse to medium grained particulate material used in construction including sand gravel crushed stone slag recycled concrete and geosynthetic aggregates Large stone quarry and sand and gravel operations exist near virtually all population

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It is then transported by truck or conveyor to a crusher where it goes through a series of crushing and screening stages to produce a range of final sizes to suit customers needs Just enough explosive is used in blasting to break the rock from the face A powerful excavator loads the rock into dump trucks for delivery to the primary crusher

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