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Sökning: onr:5g96wq9r3kbnv7md > Nya tekniker och me...

Nya tekniker och metoder inom vinterväghållning [Elektronisk resurs] en litteraturgenomgång

Möller, Staffan (författare)
Statens väg- och transportforskningsinstitut (utgivare)
Publicerad: Linköping : Statens väg- och transportforskningsinstitut, 2007
Svenska 52
Serie: VTI rapport, 0347-6030 0347-6030 ; 569
Ingår i:
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  • E-bok
Sammanfattning Ämnesord
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  • 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. 

Ämnesord

Engineering and Technology  (hsv)
Civil Engineering  (hsv)
Infrastructure Engineering  (hsv)
Teknik och teknologier  (hsv)
Samhällsbyggnadsteknik  (hsv)
Infrastrukturteknik  (hsv)
71 Road: Winter maintenance  (vti)
71 Road: Winter maintenance  (vti)

Genre

government publication  (marcgt)

Indexterm och SAB-rubrik

Winter maintenance
Technology
Snow clearance equipment
Snow plough
Deicing
Salt
Sugar
Gritting
Sand
Road heating
Method
Apparatus
Snow
Friction
Temperature
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