Crushed Stone vs. Quarry Process vs. Stone Dust
1 1/2 inch crushed stone – used for gravel driveways, septic fill, ballast for railroads and to enhance drainage; 2 1/2 inch crushed stone – mainly used to prevent erosion on roadsides and in drainage ditches, also often laid at the entrance to long-term construction projects. Quarry Process. Quarry process, also known as QP, dense grade aggregate (DGA), crusher run and road stone, is a ...
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