RI 3530 A Twenty Years' Survey Of The Use Of Sheathed Explosives In Belgium - Summary (0b0263ce-df1c-41f5-a083-d3e916ebc674)

For more than 20 years, Belgium, leading all the coal-mining countries, has made increasing use of sheathed explosives, which wore first suggested by the late E. Lemaire, predecessor of the author as Director of the Institut National des Mines. It appears to the author that it will be valuable to show how the use of sheathed explosives has developed in Belgium, hour the various difficulties encountered in their manufacture have been overcome gradually, and the tyres of sheathing that have survived and the reasons for their survival.