Characteristics of Blasting Temperature and Pressure of Aluminized Explosive in Confined Conditions

The temperature and pressure parameters of explosives at different aluminum contents in blast fields were measured,and the blast performance of explosive in terms of blast temperature,pressure response characteristic and response rules in confined condition was investigated. The results show that the blast temperature of aluminized explosive is much higher than that of ideal single explosive in confined condition,and the temperature is higher and the duration is longer when increasing the aluminum content. When the proportion of Al is 40%,the blasting temperature reaches a maximum value of about 850℃. On the other hand,the pressure of aluminized explosive is obviously low compared to the ideal single explosives,however,its overpressure can attain to a higher valuein the addition of 40% Al powder.