At the shaker our product is sorted into 6 different products, 5 of which we sell.
First, the raw sand is placed on the conveyor. The dirt, clay and large rocks are sorted out and removed from processing. This dirt and clay is unsaleable.
Second, the rock and pea gravel are sized and put into a washer and cleaned together then re-sorted by size. The washed rock is 7/16″ to 1.25″ and is used for gravel roads and drive ways.
Third, the pea gravel, 7/16" to 3/8", is used to make several products from play grounds to asphalt, or shot-crete for swimming pools to exposed aggregate sidewalks and driveways.