Data are presented on the types of aggregate available in New Zealand: greywacke-argillite, volcanic rocks (basalt, andesite, phonolite), and sedimentary rocks (limestone, chert, conglomerate). The influence of aggregate properties on the durability, resistance to wetting and drying, resistance to freezing and thawing, resistance to heating and cooling, abrasion resistance, alkali-aggregate reaction, strength, and shrinkage of concrete is analyzed. Mention is made of the N.Z. Standard NZS 3121 governing the selection and testing of concrete aggregates. /TRRL/

  • Availability:
  • Corporate Authors:

    New Zealand Portland Cement Association

    Securities House, 126 The Terrace, P.O. Box 3644
    Wellington,   New Zealand 
  • Publication Date: 1976-7


  • English

Media Info

  • Features: Photos; References; Tables;
  • Pagination: p. 4-9
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00145336
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Apr 13 1977 12:00AM