Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tire–Pavement Interaction in Contact with Salted Snow: How an Aqueous Solution Affects Compression, Squeeze-Out, and Compaction of Snow
During winter, large amounts of salt are used on roads to keep them safe for vehicular traffic. However, applying high levels of salt is harmful to the environment, vehicles, and infrastructure. In order to optimize the amount of salt used on roads without compromising traffic safety, it is useful to increase our knowledge about how salt affects snow properties. This study investigates the effects of salt solution on snow when a tire rolls over it. An indoor test experiment was developed to study the compression, compaction, and squeeze-out mechanisms of salted snow. Dendritic artificial snow was mixed with different amounts of salt solution from 0 to 40% by weight. The main findings of this study are that snow containing a salt solution compresses to a higher density; more snow gets squeezed out of the contact area compared to fresh snow. The snow that becomes compacted under the weight of tires is weaker when a salt solution is present. These effects take place using relatively small amounts of salt solution (10% by weight). These results can be used to optimize salt applications rates during a snowfall, an assertion that is discussed in this paper.
Tire–Pavement Interaction in Contact with Salted Snow: How an Aqueous Solution Affects Compression, Squeeze-Out, and Compaction of Snow
During winter, large amounts of salt are used on roads to keep them safe for vehicular traffic. However, applying high levels of salt is harmful to the environment, vehicles, and infrastructure. In order to optimize the amount of salt used on roads without compromising traffic safety, it is useful to increase our knowledge about how salt affects snow properties. This study investigates the effects of salt solution on snow when a tire rolls over it. An indoor test experiment was developed to study the compression, compaction, and squeeze-out mechanisms of salted snow. Dendritic artificial snow was mixed with different amounts of salt solution from 0 to 40% by weight. The main findings of this study are that snow containing a salt solution compresses to a higher density; more snow gets squeezed out of the contact area compared to fresh snow. The snow that becomes compacted under the weight of tires is weaker when a salt solution is present. These effects take place using relatively small amounts of salt solution (10% by weight). These results can be used to optimize salt applications rates during a snowfall, an assertion that is discussed in this paper.
Tire–Pavement Interaction in Contact with Salted Snow: How an Aqueous Solution Affects Compression, Squeeze-Out, and Compaction of Snow
Giudici, Henri (Autor:in) / Wåhlin, Johan (Autor:in) / Klein-Paste, Alex (Autor:in)
10.08.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Study on Interaction between Tire and Pavement on Dry Snow-Covered Runway
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