Method of lowering the density of ammonium nitrate-based mining explosives with expanded agricultural grain so that a density of 0.3g/cc to 1.0g/cc is achieved

摘要

The density of ammonium nitrate-based mining explosives, such as ANFO, heavy ANFO and emulsion explosives, is lowered by adding an expanded grain, such as expanded popcorn, expanded rice, or expanded wheat, to the explosive. As much as 10% of the explosive composition may be an expanded grain. The present invention may be used with porous ammonium nitrate, dense agricultural grade ammonium nitrate, crystalline ammonium nitrate, and ground ammonium nitrate.