PROTECTING CONCRETE HOSE PAYS OFF

This article is concerned with the advantages obtained by protecting hoses used for pumping concrete. The author points out that failure is seldom due to wear but usually due to mechanical damage resulting from kinking, tube damage behind the fitting and cover damage, and that larger-sized harsh aggregates give much more rapid wear then light aggregates such as pea gravel. Attention is drawn to the big difference in life often obtained during trials by the manufacturers and during actual service. Handling and storage are discussed and recommendation is put forward that kinking and flattening be avoided, that in storage, the hose be kept straight and in a cool area, and exposure to oil or grease be avoided. The types and dimensions of available concrete hoses are mentioned and information is given on the different types of couplings. Recommendations are put forward for the type of work appropriate to both softwall hoses and hardwall hoses and the need is stressed for a suitable hose where large quantities of concrete are to be handled. /TRRL/

  • Availability:
  • Corporate Authors:

    New Zealand Portland Cement Association

    Securities House, 126 The Terrace, P.O. Box 3644
    Wellington,   New Zealand 
  • Authors:
    • Monnahan, M J
  • Publication Date: 1974-6

Media Info

  • Features: Photos;
  • Pagination: p. 33-34
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00096173
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jul 24 1975 12:00AM