FOAMED AND THICKENED EXPLOSIVE COMPOSITIONS HAVING IMPROVED STABILITY

摘要

A thickened, aqueous slurry explosive composition is provided which contains a sensitizing amount of finely dispersed entrapped gas bubbles and which retains density and gas bubble stability for extended periods. Use in the composition as a thickener, of a mixture of an unmodified guar gum and a hydroxypropyl-modified guar gum provides a composition which resists migration or collapse of entrained gas or air even when subjected to shear conditions as in pumping or packaging. The composition may also contain an amount of additional sensitizer material.