density of 19mm crushed stone,Aggregates in ConcreteCrushed stone (~1,200,000,000 tons per year). ▫ Iron ore blast furnace and other slags. ▫ Manufactured (lightweight and heavy weight). ▫ Reclaimed (Crushed portland cement concrete, clay bricks, etc.) Concrete Technology. 4. Aggregates Types - Gravel. GRAVEL. ▫ Naturally occurring, water born pieces of rock, in buried or.density of 19mm crushed stone,Convert volume to weight: Stone, crushed - Aqua-CalcConvert Stone, crushed volume to its weight. See conversion formulas, volume, weight and density in various measurement units.