COMPOSITION FOR PREVENTION OF ICE COATING ON ROADS Russian patent published in 1999 - IPC

FIELD: communal and road services for winter upkeep of roads to prevent formation of ice coating. SUBSTANCE: composition comprises magnesium chloride (MgCl₂) and/or carnallite KCl•MgCl₂ and low-molecular acid alkali and/or alkaline-earth metal salt, more particularly sodium or calcium formate or acetate. Composition further comprises diethanolamine additive and river sand. Low- molecular organic acid salt includes chemical and wood chemical production waste. Composition makes it possible to form ice coatings of roads at low temperatures from - 30 to -32 C, it is passive with respect to surface of metals and does not contaminate soil during thawing of show and ice. In addition, method is economical and uses chemical and wood production waste. EFFECT: improved properties of the composition. 7 cl, 9 ex, 1 tbl