GRAVEL-CEMENT: (1) MECHANICAL AND PHYSICAL CHARACTERISTICS. GRAVEL STABILIZED WITH CEMENT - ITS MAIN CHARACTERISTICS AND FATIGUE BEHAVIOUR

GRAVES-CIMENT: 1) CARACTERISTIQUES MECANIQUES ET PHYSIQUES-LES GRAVES TRAITEES AU CIMENT-LEURS PRINCIPALES CARACTERISTIQUES - LEUR COMPORTEMENT A LA FATIGUE

This article describes the behaviour of gravel-cement in pavement structures and its evolution. The comparison of the behaviour of gravel-cement and of other materials stabilized with hydraulic binders shows a rigid behaviour of the material. The article also compares the tensile mechanical characteristics of this material with other stabilized materials. Final tensile strength values (approximately 18 bars) and moduli values (350000 bars) give these materials a place between gravel/fly-ash and gravel-slag. Fatigue behaviour of the material is characterized by the stress/ultimate stress ratio (the stress corresponding to 10 power 6 loading cycles, the ultimate stress corresponding to a single loading) and by the dispersion of the number of cycles corresponding to this level. For gravel-cement, this value is often very near 0,5. Evolutidn in the deformation curve in fatigue test under constant stress shows that the modulus of deformation of the material remains nearly constant during the whole length of the test and diminishes only just before failure. The behaviour of the material remains constant throughout its life. (TRRL)

  • Corporate Authors:

    Laboratoire Central des Ponts et Chausees (LCPC)

    Boulevard Lefebvre 58
    Paris Cedex 15,   France  F-75732
  • Authors:
    • Nguyenay, J M
  • Publication Date: 1978-3-4

Language

  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00309231
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 21 1980 12:00AM