Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seasonal Variations in the Skid Resistance of Pavements in Kentucky
Frequent measurements of skid resistance were made on 20 pavements in common use in Kentucky. Tests were conducted from November 1969 through 1973. Principal analysis involved relating changes in skid resistance to day of the year and relating skid resistance to temperature at the time of test, to average antecedent temperatures, and to average rainfall. Seasonal variations exhibited an annual, sinusoidal cycle. The changes in sand-asphalt and bituminous concrete under higher volumes of traffic were about 12 skid numbers. The changes in portland cement concrete and bituminous concrete under lower volumes of traffic were about 5 skid numbers (SN's) occurred in early to mid-August for portland cement concrete and sand-asphalt pavements and in late August to early September for bituminous concrete. It was concluded that skid resistance measurements should be conducted between the first of July and the middle of November to be assured of detecting significant differences in SN. However, frequent testing of reference sections is recommended to define more specifically each year the beginning and ending date of the testing season.
Seasonal Variations in the Skid Resistance of Pavements in Kentucky
Frequent measurements of skid resistance were made on 20 pavements in common use in Kentucky. Tests were conducted from November 1969 through 1973. Principal analysis involved relating changes in skid resistance to day of the year and relating skid resistance to temperature at the time of test, to average antecedent temperatures, and to average rainfall. Seasonal variations exhibited an annual, sinusoidal cycle. The changes in sand-asphalt and bituminous concrete under higher volumes of traffic were about 12 skid numbers. The changes in portland cement concrete and bituminous concrete under lower volumes of traffic were about 5 skid numbers (SN's) occurred in early to mid-August for portland cement concrete and sand-asphalt pavements and in late August to early September for bituminous concrete. It was concluded that skid resistance measurements should be conducted between the first of July and the middle of November to be assured of detecting significant differences in SN. However, frequent testing of reference sections is recommended to define more specifically each year the beginning and ending date of the testing season.
Seasonal Variations in the Skid Resistance of Pavements in Kentucky
J. L. Burchett (Autor:in)
1978
73 pages
Report
Keine Angabe
Englisch
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