icing protection on the pavement is sprinkled with salt. the salt melts the ice into a harmless slurry. the salt layer is too high

architecture background cement concrete construction damage dance dancing environmental expensive floor gray harmless high ice icing injury interlocking layer lot maintenance material melting melts parhway park pattern pavement paving pile prevention problem protection rock salt seasoning service sidewalk slipping slurry sprinkled sprinklers sprinkles square step stone street surface texture tiles too town white winter