Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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PHYSICAL AND MECHANICAL PROPERTIES OF THE ROAD ICE, DESTRUCTIBLE CUTTER WHEN CLEANING AREA NEAR THE CURBSTONE ROAD

Gorshkov A.S. 1 Kulepov V.F. 1 Maligin A.L. 1 Gusev O.R. 1
1 Dzerzhinsky Polytechnic Institute of Nizhny Novgorod State Technical University. Dzerzhinsk
The study of the samples road ice, selected at various points around curbs, showed that ice road together with ice contains frozen materials, accumulating them in pre-winter period, most of which in the form of solid mineral particles is in a layer with thickness up to 20 mm from the asphalt pavement. More than 68% of the particles have a size of sand particles greater than 200 microns.More than 52% of the solid particleshave a size of320 ÷500microns.Roadicethis layercontains 75 ÷ 78 % silica, 20 ÷ 22% water, 1 ÷ 1,2% sodium chloride, 0,9% phosphorus oxide, 0,05 ÷ 0,1% iron oxide.The density oficein layers(20mm) varies from1270 kg/m3to313kg/m3. Average meaning density equals603kg/ m3. Angle of repose road ice with 18-24 % humidity varies 37-57 degrees at temperature from 0 up to – 20 degrees. Studied the change of the coefficient of friction on steel and concrete on temperature. Information on resistance to compression is given. Compressibility coefficient for wet sandand coefficient lateral pressure is defined. Equation dependence property road ice from temperature and moisture frozen mass is present.