ABSTRACT
I n d e f l a g r a t i o n , no shock wave i s developed i n the m a t e r i a l . I n the same way as i n detonation, a crush zone i s formed near the charge by the high compressive s t r e s s e s . T h i s i s however much s m a l l e r than i n detonation. Breakup i s caused by compression and p r i n c i p a l t e n s i l e s t r e s s e s . High temperatures but r e l a t i v e l y s m a l l gas volumes a r e developed. S t r i n g e n t demands are placed on the stemming. I t must be strong and s e a l the d r i l l - h o l e h e r m e t i c a l l y . Sand and c l a y are not s u f f i c i e n t . Rapid hardening cement mortar can be
Chemical e energy Loss from not i d e a l r e a c t i o n s |Developed energy
0) > •H CO o H a w
Shock wave R e f l e c t e d energy
Expanding gas
Incoming Shockwave
CD M 0) .C a to o 6
'/Cracking^ E l a s t i c deform.
