BETTER GRAIN STRUCTURE INCREASES THE BEARING CAPACITY OF STONE ROADBASES: RESULTS OF FIELD TESTS IN EMMEN

BETERE KORRELOPBOUW VERHOOGT DE DRAAGKRACHT VAN STEENFUNDERINGEN: RESULTATEN VAN PRAKTRIJKPROEVEN IN EMMEN

This article describes the results of field tests that were carried out to study the relationship between the grain structure of stone roadbases under flexible pavements and the bearing capacity of these roadbases. In the town of Emmen, the Netherlands, three types of stone materials were investigated in experimental road sections: (1) blast-furnace slags 0/40; (2) lightly bound mixed granulate 0/40; and (3) unbound mixed granulate 0/40. The following issues are discussed: (a) grain structure, grading curves; (b) measurement of the bearing capacity; (c) modulus of elasticity (E value); and (d) the relationship between grain structure and bearing capacity (California Bearing Ratio (CBR) and E value). It appears that narrowing the grading envelope has a positive impact on the strength (E value). Due to this, the asphalt layer thickness can be saved on. An example showing the financial benefit is given.

  • Availability:
  • Corporate Authors:

    CENTRUM VOOR REGELGEVING EN ONDERZOEK IN DE GROND-, WATER- EN WEGENBOUW EN DE VERKEERSTECHNIEK (CROW)

    GALVANISTRAAT 1
    EDE,   Netherlands  6716 AE
  • Authors:
    • ALTENBURG, T J
    • SONKE, J
  • Publication Date: 1995-9

Language

  • Dutch

Media Info

  • Pagination: p. 4-7, 9
  • Serial:
    • WEGEN
    • Volume: 69
    • Issue Number: 8
    • Publisher: CROW
    • ISSN: 0043-2067

Subject/Index Terms

Filing Info

  • Accession Number: 00719669
  • Record Type: Publication
  • Source Agency: DIENST WEG- EN WATERBOUWKUNDE (DWW)
  • Files: ITRD
  • Created Date: Apr 26 1996 12:00AM