THE EFFECTS OF DE-ICING SALTS AND STUDDED TIRES ON ASPHALT PAVEMENT WEARING SURFACES

DURING RECENT YEARS IT HAS BEEN OBSERVED IN GERMANY, THAT ASPHALT PAVEMENTS SUFFERED CERTAIN DAMAGES DURING THE WINTER MONTHS, PERHAPS DUE TO THE ENORMOUS INCREASE IN USE OF DE- ICING SALTS AND USE OF STUDDED TIRES. RESULTS OF INVESTIGATIONS INDICATED THAT DE-ICING SALTS DO NOT HAVE ANY CHEMICAL EFFECT. HOWEVER, THEY HAVE AN INDIRECT PHYSICAL EFFECT, AS THE CONSTANTLY WET SURFACE CAN CAUSE ASPHALT STRIPPING. MOREOVER, DUE TO LOWERING OF THE FREEZING POINT, THE UNDERCOOLED PAVEMENT BECOMES BRITTLE. IN THIS STATE THE EFFECT OF THE MECHANICAL ACTION OF TRAFFIC IS MUCH MORE SEVERE. IN ADDITION, THE VARIOUS GRITTING MATERIALS, SUCH AS SLAG AND ASH, OFTEN USED IN COMBINATION WITH DE-ICING SALTS, ACT AS ABRASIVES AND AGGRAVATE THE CONDITION. THE CLAWING ACTION OF STUDDED TIRES HAS THE STRONGEST EFFECT ON PAVEMENTS. IT WAS ASCERTAINED, THAT WELL COMPACTED DENSE ASPHALT CONCRETE WITH A MINIMUM VOID CONTENT WITHSTANDS THE ACTION OF DE-ICING SALTS AND STUDDED TIRES MUCH BETTER THAN THE MORE OPEN MIXES. IT IS STATED, THAT GUSSASPHALT, BEING TOUGH, VOIDLESS PAVEMENT, HAS THE HIGHEST RESISTANCE TO THE DESCRIBED DAMAGES BY DE-ICING SALTS AND STUDDED TIRES. /AUTHOR/

• Corporate Authors:

  International Winter Road Congress /Ger

  ,    
• Authors:
  • Zichner, G
• Publication Date: 1969-1

Subject/Index Terms

• TRT Terms: Asphalt pavements; Brittleness; Deicers (Equipment); Salts; Slag; Stripping (Pavements); Studded tires
• Uncontrolled Terms: Deicers
• Old TRIS Terms: Ashes
• Subject Areas: Highways; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 00207008
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 2 1994 12:00AM