NONEXPLOSIVE DESTRUCTIVE COMPOSITION Russian patent published in 2000 - IPC

FIELD: natural stone and stone material output, destruction and building of ferroconcrete and concrete objects. SUBSTANCE: nonexplosive destructive composition containing calcium oxide and boric acid has calcium oxide from lime and gypsum and additionally potassium permanganate and ethylene glycol at the following ratio of components, wt.-%: potassium permanganate 1.45-9.5; ethylene glycol 5.0-21.0; boric acid 0.25-2.7 and calcium oxide from lime and gypsum - the rest. EFFECT: enhanced effectiveness of natural stone splitting-off due to increased hydration rate and pressure increase obtained at temperatures from +5 C to -10 C. 2 tbl