アンホ爆薬の爆轟特性について

抄録

Recently, ANFO explesive has come into use in metal mines and quarries for reasons of its economical profit and safety.
It has been found out that ANFO explosive has scarcely shown the differences in blasting effects in comparison with conventional explosives, for example Kiri dynamites and carlits.
The detonation'; characteristics of ANFO explosives that need to carry out the designs for blasting has been studied by several workers, but it has not been clari fied sufficiently.
The authors measured the detonation velocity of ANFO explesives with ion gap method and obtained the results as follows.
1) Under fixed detonating conditions, the final detonation velocities of ANFO explosive are hardly dependent on the kinds and quantities of primers used.
2) The quantities of primers, in other words, the differences in priming energies exert an influences upon the time up to the fixed detonation velocities.
3) Under the same detonation conditions, the optimum quantity of primer can be calculated from the blasting models used.