THE SIGNIFICANCE OF FILLERS IN BITUMINOUS ROAD CONSTRUCTION

DIE BEDEUTUNG DES FUELLERS FUER DEN BITUMINOESEN STRASSENBAU

BETWEEN VARIOUS TYPES OF FILLERS THERE ARE APPRECIABLE DIFFERENCES IN THE QUALITIES WHICH MAY HAVE A SIGNIFICANT INFLUENCE ON THE PROPERTIES OF MORTARS MADE WITH THEM. INFERIOR FILLERS CLEARLY LEAD TO THE FORMATION OF CRACKS AND TO SANDING, THE LATTER BEING THE LOSS OF BITUMINOUS MORTAR AND SAND GRAINS FROM THE PAVEMENT SURFACE. AN INVESTIGATION INTO THE FAILURES AT THE TU MUNICH SHOWED THAT THIS IS DUE LESS TO THE POOR QUALITY OF THE ADDED FILLERS CONSISTING OF FINELY GROUND ROCK MINERALS, BUT RATHER TO DEFICIENCIES IN THE FINE PARTICLE FRACTION OF THE SAND AND COARSE AGGREGATE. FROM LABORATORY TESTS THE CONCLUSION MAY BE DRAWN THAT THE PROPERTIES OF THE NATURAL AND ADDED FILLERS, ESPECIALLY WITH REGARD TO PARTICLE GRADING AND COMPACTION, HAVE A SIGNIFICANT EFFECT ON THE QUALITIES OF BITUMINOUS MORTARS AND THUS ON THE BEHAVIOUR OF BITUMINOUS PAVEMENTS.

Language

  • German

Media Info

  • Pagination: 26-7
  • Monograph Title: ERFAHRUNGEN MIT KALKSTEINMEHLEN IN DER PRAXIS
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01303489
  • Record Type: Publication
  • Source Agency: Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV)
  • Files: ITRD
  • Created Date: Nov 21 2010 9:05AM