Crusher dust, also known as blue metal, cracker or more commonly, rock dust, is simply a by-product from making crushed rock. As rocks are run through the crusher, tiny pieces and dust particles are left behind. Instead of being thrown out as waste material, the dust is recycled and becomes a valuable product with many practical applications in both commercial construction and home projects. Using crusher dust in lieu of other materials can have resounding environmental and economical benefits.
With fine, powder-like qualities, crusher dust compacts to create a strong, sturdy surface. Made up of a mix of small crushed rocks and fine aggregates, this versatile material can be used as a base layer under concrete slabs, water tanks, piping, and anything that will be paved or covered over. For more information, check out our article on the various usages of crusher dust.