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Petrographic examination of hardened concrete

  • Jepsen Boye Bork
  • Christensen Preben
Article

Abstract

Petrographic examination of hardened concrete is a quick and well suited method of diagnosing reasons for lack of concrete durability and of doing quality control of new concrete structures. This paper describes the technique, which is now widespread in Denmark, and discusses the information obtained by the method, a lot of which cannot be obtained in any other way.

Keywords

Silica Fume Ettringite Alkali Silica Reaction Sulphate Attack Concrete Core 

Étude pétrographique de béton durci

Résumé

L'étude pétrographique du béton durci est une méthode rapide et bien adaptée à la mise en évidence des raisons d'un défaut de durabilité des bétons ainsi qu'au contrôle de structures neuves en béton. L'article décrit la technique, maintenant d'utilisation courante au Danemark, et discute informations obtenues par cette méthode, dont une bonne partie ne peut pas être obtenue autrement.

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References

  1. 1.
    JENSEN, J.H., 1986: Petrographic examination of hardened concrete. Ph.D. Thesis, PC-Laboratory A/S.Google Scholar
  2. 2.
    ASTM C 856-77: Petrographic examination of hardened concrete.Google Scholar
  3. 3.
    MIELENZ, R.C., 1962: Petrography applied to portlandcement. concrete. Reviews in Engineering Geology, Vol. 1. Geol. Soc. Am., 1962.Google Scholar
  4. 4.
    ASTM C 457-82: Standard practice for microscopical determination of air-void content and parameters of the air-void system in hardened concrete.Google Scholar
  5. 5.
    BETON-TEKNIK, 1986: Portlandcementer. CTO. Aalborg Portland, Denmark.Google Scholar
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    DANSK BETONFORENING 1981: Maling og vurdering af haerdnet betons holdbarhed. DBF publikation 10: 1981.Google Scholar
  7. 7.
    HJORTH, L., 1982: Mikrosilica og beton. Beton-Teknik, CTO, Aalborg Portland, Denmark.Google Scholar

Copyright information

© International Association of Engineering Geology 1989

Authors and Affiliations

  • Jepsen Boye Bork
    • 1
  • Christensen Preben
    • 1
  1. 1.PC-Laboratory A/SFjerritslevDenmark

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