Development of an ultra low density reactive agent

摘要

A novel, ultra-low density explosive composition, particularly suited for wall control and other applications requiring customising of the explosive's energy ouput, has been developed. Being ractive in nature, the low density explosive enables the controlled dilution dry blasting agents from their nominal densities down to values slightly less than 0.10 g/cm~3. The product has been detonated at densities of 0.07 g/cm~3 in diameters as small as 50mm under confined conditions. using a 227 g (1/2 1b.) primer. Recorded velocities of detonation ranged between 1200 m/sec and 2200 m/sec for desities between 0.07 and 0.2 g/cm~3. Theoretical velocities ranged from 1700 m/s to 2500 m/s for the same density range. The low density explosive was insensitive to initiation by a blasting cap which is a desirable feature for transportation purposes. Mixing of the product with ANFO has been accomplished with minimum segregation making it suitable for applications where reduction of pressures are necessary.