Method for explosion free blasting of materials such as stone and concrete, involves filling exploder in bore hole predominantly on basis of unslaked limestone so that explosion effect occurs by heat development and explosion pressure

摘要

The method involves filling exploder (4) in a bore hole (2) predominantly on the basis of unslaked limestone so that explosion effect occurs by the heat development and explosion pressure. The exploder is mixed with water. A starting pressure safety is formed in the filling area of the bore hole by increasing the bore hole roughness or by enforcing or inserting an explosion plug or a locking sleeve or an insertion grid (20). Independent claims are included for the following: (1) a blasting assistance for the explosion free blasting, particularly of stone and concrete; and (2) a roughening tool for generating an increased wall roughness of the bore hole.