NEW PERSPECTIVES FOR LEAN CONCRETE FOUNDATIONS FOR ROADS. INCREASE IN WORKABILITY TIME AND LAYING BY MEANS OF INTERNAL VIBRATION BETWEEN SLIP FORM PAVERS

NOUVELLES PERSPECTIVES POUR LES FONDATIONS ROUTIERES EN BETON MAIGRE, L'AUGMENTATION DE DELAI DE MANIABILITE ET LA MISE EN OEURVE PAR PERVIBRATION ENTRE COFFRAGES GLISSANTS

The author examines the general characteristics of lean concrete, especially its mechanical strength, stiffness, deformability and resistance to fatigue. New trends in the laying of lean concrete are commented upon. Workability time is defined, and it is shown on two concretes of different mix design that workability time extends over several hours. Retarders enable the time to be extended to 10 or even 20 hours under special conditions. The use of slip form pavers with vibrating needles for the laying of lean concrete is possible and enables economical cement-bound road foundations to be built, which have high geometrical and mechanical characteristics. (TRRL)

  • Availability:
  • Corporate Authors:

    Association Perm des Congres de la Route

    49 Av d'Auderghem
    1040 Brussels, Belgium,   USA 
  • Authors:
    • Petit, J
  • Publication Date: 1979

Language

  • French

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 36-56
  • Serial:
    • Technique Routiere
    • Volume: 24
    • Issue Number: 1
    • Publisher: Association Permanente des Congres Belges de Route
    • ISSN: 0040-1277

Subject/Index Terms

Filing Info

  • Accession Number: 00317210
  • Record Type: Publication
  • Source Agency: Centre de Recherches Routieres (CRR)
  • Files: ITRD, TRIS
  • Created Date: Feb 6 1981 12:00AM