Case Study
Electronic blasting and blast management
1 BLAST MANAGEMENT IN CHANGE OF TIME In the 12th century the use and manufacture of black powder was developed in China. But it took more then 200 years, before black powder was introduced in blasting for civil purposes in Europe by Bertold Schwartz. The first civil blast in an underground ore operation - documented by Casper Weindel - took place in the German “ Harz” mountains in 1627 (Petzold et al. 2000a). Figure 1: First documented blast in u