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Field Investigations on the Risk for ASR when Using Potentially Reactive Aggregates and Low Alkali Cements - Results after 50 Years in Sweden

På svenska

Author

  • Erik Nordström
  • Martin Rosenqvist
  • Gunnar Sjödin
  • Marcus Hautakoski

Summary, in English

The adverse effects from reactions of reactive aggregates in concrete dams are well known worldwide. The mechanisms ruling alkali silica reactions (ASR) are partly but not fully understood. A majority of the Swedish concrete dams are so far considered to be protected from ASR due to the common use during the 50:s, 60:s and 70:s of the Swedish low alkali cement Limhamn LH. Today there is a discussion if it still is possible to develop ASR after very long time in dams with reactive aggregates and use of low alkali cement. Via selection of seven facilities in the Swedish alpine area, where reactive aggregates are common, the current paper is aiming to compile experiences from almost 50 years of exposure. In the paper two examples on ASR in spite of use of low alkali cement are shown.

Publishing year

2013

Language

English

Pages

393-402

Publication/Series

ICOLD 2013 International Symposium — Seattle USA

Document type

Conference paper

Publisher

U.S. Society on Dams

Topic

  • Materials Engineering

Conference name

International Commission on Large Dams - 81st Annual Meeting Symposium

Conference date

2013-08-14

Conference place

Seattle, United States

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-1-884575-63-1