Definition of Crusher Dust

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Every day, quarries move large amounts of stone and aggregate. In the process of removing these materials from the earth and moving them, quarries create a large amount of dust that is made from very small stone particles, known as crusher dust. Crusher dust is also created when metals such as iron are separated from ore and the resulting slag is crushed into fine particles. Crusher dust looks much like sand but is made up of angular particles with a rough surface.

Getting Your Fill

  • Crusher dust compacts very well, creating a stable surface. Instead of going to waste, it is used to make walkways, bike paths and parking lots as well as to create a supportive, level surface under concrete driveways and patios. It should not, however, be used under concrete pavers -- bedding sand is best for this application. Crusher dust is also used to make concrete aggregate, concrete sand and glass insulation. In addition, it is frequently used as fill in trenches and around water tanks. In agriculture, the material can help aerate soil.

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