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Quarry dust a by- product from crushing process during quarrying activities is good alternative during construction projects. It is used as substitute to sand to make quarry dust concrete which is believed to be stronger and more durable than the regular concrete materials.
Screenings or dust particles are used for concrete block manufacturing. This particular crushed rock is known as #10. Crushed rock #67 ranges in sizes from 3/4 inches to a size of fine particles and is used as a slab, road and fill base.Another crushed stone is #411, which is a mixture of #57 stone and stone dust.This mixture is used as a base for retaining walls, roads and for patching holes in pavement.Mixing in dust with the larger stone improves its ability to settle.nother crushed stone is #411, which is a mixture of #57 stone and stone dust. This mixture is used as a base for retaining walls, roads and for patching holes in pavement. Mixing in dust with the larger stone improves its ability to settle.