SUPERPLASTICIZERS IN CONCRETE - A REVIEW OF INTERNATIONAL EXPERIENCE OF LONG-TERM RELIABILITY

Admixtures known as "superplasticizers" increase the workability of suitably designed concrete mixes to a much greater extent than is achievable by plasticizers and other workability aids in more common uses. Superplasticizers are chemically different from present conventional plasticizers, and therefore it is important to consider whether any adverse effect could result from their use in either plain, reinforced or prestressed concrete. Although comparatively new to the United Kingdom, superplasicizers have been used and tested over a period of 8 to 11 years in some other countries, notably West Germany and Japan. Test data and other evidence of experience in the use of superplasticizers in these countries have been collected, assessed and summarised. From the available evidence it is concluded that neither of the two chemically different groups of superplasticizers considered exhibits any adverse effect on the properties or performance of concrete and that, with appropriate care in the design and control of the mix, their use should be permitted in the UK. Some suggestions are made for applications in which the use of superplasticizers may prove economical. (Author/TRRL)

Media Info

  • Features: References;
  • Pagination: 27 p.
  • Serial:
    • CIRIA REPORT
    • Issue Number: 62
    • Publisher: Construction Industry Research & Information Assoc
    • ISSN: 0305-408X

Subject/Index Terms

Filing Info

  • Accession Number: 00386006
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Jul 30 1984 12:00AM