In the modern construction industry, stone dust is increasingly popular as a fine aggregate substitute for river sand. Derived from hard andesite rock fragments during the stone crushing process in a crusher machine, stone ash has sharp-angled grains that can lock together very well. The use of stone ash has been proven to increase the compressive strength of concrete, make the paving block mixture denser, and save production costs for precast construction materials such as kanstin, brick, and roster.
