THE EFFECT OF AGGREGATE PARTICLE SHAPE ON THE WEAR RESISTANCE OF STONE MASTIC ASPHALT - A STUDY WITH FIELD TEST SLABS. FINAL REPORT1

KIVIAINEKSEN RAEMUODON VAIKUTUS SMA-PAALLYSTEEN KULUMISKESTAVYYTEEN. LOPPURAPORTTI VT 1:N MINIKOETEIDEN TUTKIMUKSISTA

The aim of this research was to determine the effect of particle shape on the wear resistance of stone mastic asphalt (SMA) by using test slab method. Four different kinds of mineral aggre-gates were sieved with bar sieves to produce 8 - 18 mm (two aggregates) or 8 - 20 mm (two aggregates) material of three particle shapes: good, normal and poor. Nordic abrasion values (studded tyre test) and fiakiness values of these aggregates were measured. The binder contents of different asphalt mixtures were determined based on the measurements of gyrator compactor. The difference between binder contents of aggregate mixtures with good and poor shape varied among 0,7 - 1,1 % units. 28 test slabs (50 x 70 cm) of asphalt concrete were rolled in the laboratory. Test slabs were placed in the road on main road 1 on the border of Espoo and Hel-sinki. Before placing test slabs four 50 cm wide and 7 cm deep grooves were milled in the right-hand wheel rut. Test slabs were placed on a special paste and rolled in the same level as the surrounding wearing course.

  • Availability:
  • Corporate Authors:

    TIELAITOS (FINNISH NATIONAL ROAD ADMINISTRATION)

    OPASTINSILTA 12 A
    HELSINKI,   Finland  FIN-00520
  • Authors:
    • VUORINEN, J
    • KURKI, T
    • ALKIO, R
  • Publication Date: 1998

Language

  • Finnish

Media Info

  • Features: References;
  • Pagination: 39p+1a p.
  • Serial:
    • TIELAITOKSEN SELVITYKSIA
    • Volume: tiel3200529
    • Issue Number: 37
    • Publisher: TIELAITOS (FINNISH NATIONAL ROAD ADMINISTRATION)
    • ISSN: 0788-3722

Subject/Index Terms

Filing Info

  • Accession Number: 00790127
  • Record Type: Publication
  • Source Agency: VTT Technical Research Centre of Finland
  • ISBN: 951-726-459-3
  • Files: ITRD
  • Created Date: Apr 11 2000 12:00AM