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Title:

IMPLEMENTATION OF NEW SANDING METHOD IN NORWAY
Cover of IMPLEMENTATION OF NEW SANDING METHOD IN NORWAY

Accession Number:

00974866

Record Type:

Component

Availability:

N/A
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Order URL: http://worldcat.org/issn/00978515

Abstract:

One of the main achievements in the Winter Friction Project in Norway has been the development of a new sanding method based on a mix of hot water and sand. The most significant factors in this method are the sand quality, the amount of water, the spreading speed, and the water temperature. The sand should be of a specified quality corresponding to a 0 to 4-mm gradation. Hot water means that the water temperature is 90 deg C to 95 deg C. The amount of water in the mixture of sand and water is approximately 30-weight percentage, and the normal dosage of sand used is equivalent to 200 g/sq m as an average. Scientific studies have revealed that measures carried out with the new sanding method last longer than traditional sanding methods. It has been proved that by adding warm water to the sand it is easy to maintain a friction level above the standard even after the passage of 2,000 vehicles. Under favorable road and weather conditions, satisfactory friction values have been maintained for up to 3 to 7 days on roads with annual average daily traffic of 1,500 vehicles. The introduction of wet gritting means substantial improvement, both in regard to friction and in time of effect. The new method is expected to have a marked impact on winter road operations. In Norway there are now a total of approximately 30 trucks based on the new sanding method, and the method is being used on national roads, in municipalities, and on air fields.

Supplemental Notes:

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Report/Paper Numbers:

E-C063,
SNOW04-005
SNOW04-039

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Vaa, T

Pagination:

p. 473-486

Publication Date:

2004-6

Serial:

Transportation Research Circular

Issue Number: E-C063
Publisher: Transportation Research Board
ISSN: 0097-8515

Conference:

Sixth International Symposium on Snow Removal and Ice Control Technology

Location: Spokane, Washington
Date: 2004-6-7 to 2004-6-9
Sponsors: Transportation Research Board; Washington State Department of Transportation; American Association of State Highway and Transportation Officials; and Federal Highway Administration.

Features:

Figures (6) ; Photos (13) ; References (2) ; Tables (1)

Uncontrolled Terms:

Hot water; Wet sanding

Geographic Terms:

Norway

Subject Areas:

Highways; Maintenance and Preservation; I62: Winter Maintenance

Files:

TRIS, TRB

Created Date:

Jun 10 2004 12:00AM