| 摘要 |
FIELD: explosives. SUBSTANCE: explosive composition applicable as borehole charges in mining industry and construction contains, wt %: variant 1 powdered organic combustible with particle size 0.05-3.25 mm, 1.0-6.0; water or aqueous solution of glycol, 1.0-4.0; perlite sand, 0.05-5.0; liquid petroleum product, 2.5-5.0; granulated ammonium nitrate, the balance; variant 2 powdered organic combustible with particle size 0.05-3.25 mm, 2.0- 5.0; liquid petroleum product, 1.0-5.0; water or aqueous solution of glycol, 0.5-4.0; aluminum silicide or its mixture with ferrosilicon with particle size 0.025-0.150 at ratio (1-3):1, 3.0-9.0; ammonium nitrate, the balance. Preparation procedure includes preliminarily drying organic combustible to moisture content 15-40%, treatment with glycol (if necessary) to form aqueous solution of glycol, which is further mixed with other components. EFFECT: increased physical stability and improved detonation parameters, reduced expenses, and extended resource. 14 cl, 1 tbli
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