PLASTICISED CONCRETE (FLOW CONCRETE) AS A POSSIBLE NEW APPLICATION IN ROAD CONSTRUCTION

FLIESSBETON ALS NEUE ANWENDUNGSMOEGLICHKEIT IM STRASSENBAU

Flow concrete is defined in the guidelines for the production and handling of flow concrete (1974 edition) as a concrete with a spreading value (slump equivalent) between 50 and 60 cm. This is achieved by using a plasticiser without altering the water : cement ratio. The strength of the final product remains unchanged. Flow concrete offers the following advantages: quicker and easier placing, reduced energy required for compaction, less usage of plant for placing and compaction, less plant required for transporting, a uniformly compact concrete inner structure, blemish-free surface areas, savings in labour requirements, reduced physical effort by the labour force, less noise interference, it can be made in ready-mix plants and can be placed by untrained personnel. Flow concrete has been used in Hamburg for urban roadworks and possessed a comprehensive strength of 350 kp/cm2 after 48 hours, so that the roads could be opened to traffic. Early high-strength flow concrete was used on a Danish motorway on a 200 metre long test stretch. No information is available to date of the behaviour of this. /TRRL/

Language

  • German

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 223-7
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00189411
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD, TRIS
  • Created Date: May 11 1979 12:00AM