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17TH World Congress on Road Winter Service, Resilience and Decarbonisation - Pre-proceedings of the Congress

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IP0009 - Chemical Slipperiness on Roads in Winter - Berlin Case Calcium Chloride

Franz GOETZFRIED , Sebastian BRAND

Individual paper (pdf - 1.1MB)

After the preventive use of calcium chloride brine to combat hoar frost, numerous traffic accidents caused by icy conditions occurred in Berlin, despite road surface temperatures above 0°C. The investigation into the accidents showed that they were due to an unfavorable combination of road surface temperature, air temperature and humidity at the time the brine was used. As a result, calcium chloride [...]