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Nya tekniker och metoder inom vinterväghållning: en litteraturgenomgång
Swedish National Road and Transport Research Institute.
2007 (Swedish)Report (Other academic)Alternative title
New technology and new methods in winter road maintenance. Documentary study (English)
Abstract [sv]

Among new technology and new methods in winter road maintenance, with special interest, the following can be emphasized.

Advanced technology highway maintenance vehicle: The maintenance vehicle is not only an operational truck but also a mobile data gathering platform. The following examples of sensors and equipment have been suggested: - System to determine the location of the truck by use of GPS technology - System for recording meteorological data such as air and road surface temperature, humidity and sight distances - System for gathering data about road surface conditions, road surface friction characteristics and freezing point temperature of a wet, moist or slushy road - System for recording application rate of spread materials, e.g. sand or salt - System for transmitting the above mentioned data wirelessly to a dispatch centre where data are recorded on magnetic media.

Admixture of sugar to salt: - Sugar cannot melt snow or ice but can prevent abrupt freezing - Patent process: Sugar is manufactured directly from raw sugar beet, not from waste agricultural products - End product: Sugar beet flour containing 75 % sugar and 25 % beet substance - 30 % sugar beet flour is mixed with 70 % warm water, enzyme is added and

completed sugar solution is obtained. About 25 % sugar content - The sugar solution was tested mixed with brine, and also when used for prewetting dry salt - The results did not show any significant differences in friction characteristics.

Admixture of sugar to sand: - Sand was mixed with 50-100 litres of sugar solution per m3 - Result: The same friction characteristics as sand mixed with 80 litres of brine per m3 - No problems with freezing in storehouse.

Warm sand: - Method: Hot water is mixed with sand at the moment of spreading - Sand adheres to the road surface and creates a sandpaper effect - Long duration in stable weather conditions.

Place, publisher, year, edition, pages
Linköping: VTI., VTI rapport 569 , 2007. , 52 p.
VTI rapport, ISSN 0347-6030
Keyword [en]
Winter maintenance, Technology, Snow clearance equipment, Snow plough, Deicing, Salt, Sugar, Gritting, Sand, Road heating, Method, Apparatus, Snow, Friction, Temperature
Research subject
Road: Maintenance, Road: Winter maintenance
URN: urn:nbn:se:vti:diva-6432OAI: diva2:675309
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2013-12-03

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Möller, Staffan
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