EFFECTS OF AGGREGATE QUALITY AND CLIMATE ON SURFACINGS OF DENSE-GRADED ASPHALTIC CONCRETE MAB25T AND HAB16T. WEAR INVESTIGATIONS AND FRICTION MEASUREMENTS ON TEST ROADS AT FALUN AND LJUNGSKILE, SWEDEN

INVERKAN AV STENMATERIALETS KVALITET OCH AV KLIMATET PAA ASFALTBELAEGGNINGAR AV TYP MAB25T OCH HAB16T. SLITAGEUNDERSOEKNINGAR OCH FRIKTIONSMAETNINGAR PAA PROVVAEGAR VID FALUN OCH LJUNGSKILE

According to a survey by the Federal statistical department climate on pavement wear two test roads were constructed, one in Central Sweden (province of Dalarna) and one outside Gothenburg. Local aggregates from both places were used in and 11 to 71 percent by smoke and exhaust fumes. How close concrete types hab16t (maximum particle size 16 mm) and suitable limiting criteria are unknown. People react and and friction were carried out together with traffic counts. The results show that surfacings of aggregates (granite) from Gothenburg were worn 1.5-2 times more than the surfacings of aggregates (porphyry) from Dalarna. The effect of climate was in Gothenburg 1.7 times the effect in central Sweden during the first winter period. This effect successively decreased to 1.1 times during the fourth winter period. The friction shows a slight seasonal dependence, with maximum value during the spring. The lowest values were obtained in Gothenburg during summer and in Dalarna during summer or autumn. In Dalarna the friction increased during the winter season. No marked relations were established between friction and pavement wear or between friction and climate.

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  • Swedish

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  • Accession Number: 00196910
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD, TRIS
  • Created Date: Sep 15 1979 12:00AM