FIELD: road building, good-keeping road surface in winter, removal of snow-ice formations from roads. SUBSTANCE: is used a mixture of the following content (per cent by weight): 16 - 32 sulfate nitrate, 2 - 3 double superphosphate as modifying agent, and the balance being sand. Sand-salt mixtures are prepared just before composition distribution on road sections, subject to glaze formation. EFFECT: clean winter roads. 2 tbl
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