Monitoring of Cracks in Historic Concrete Structures Using Optical, Thermal and Acoustical Methods

  • Christiane Maierhofer
  • Rainer Krankenhagen
  • Philipp Myrach
  • Jeannine Meinhardt
  • Uwe Kalisch
  • Christiane Hennen
  • Rüdiger Mecke
  • Thomas Seidl
  • Michael Schiller
Chapter
First Online:
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Abstract

Cracks are a major issue in the field of cultural heritage. In order to evaluate the significance of a crack, a long term monitoring of the damaged region is required. However, there is a lack of easy to operate tools for such monitoring measures. Therefore, new or existing methods for other applications have to be optimised for cultural heritage investigation. The paper describes the application of such crack observation methods on a historic concrete sculpture. Beside conventional methods, like mapping by hand and ultrasonic depth profiling, a novel tracking system is presented. Furthermore, the suitability of active thermography for the investigation of cracks was investigated. The results show promising prospects for these non-destructive techniques.

Keywords

Crack Depth Copper Slag Crack Angle Crack Structure Pulse Phase Thermography 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Notes

Acknowledgments

The research project was funded by the Research Initiative Zukunft Bau of the Federal Institute for Building, Urban Affairs and Spatial Development (Reference: SF—10.08.18.7-10.33/II 3—F20-10-087). Special thanks to Asmus Schriewer, who accompanied the project on behalf of the BBR very constructive, and to the members of the Support Working Group: Matthias Hemmleb, Ralf Lindemann and Johannes Vielhaber.

References

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Christiane Maierhofer
    • 1
  • Rainer Krankenhagen
    • 1
  • Philipp Myrach
    • 1
  • Jeannine Meinhardt
    • 2
  • Uwe Kalisch
    • 2
  • Christiane Hennen
    • 2
  • Rüdiger Mecke
    • 3
  • Thomas Seidl
    • 3
  • Michael Schiller
    • 3
  1. 1.BAM Federal Institute for Materials Research and TestingBerlinGermany
  2. 2.IDK Institute for Diagnostics and Conservation on Monuments in Saxony and Saxony-AnhaltHalleGermany
  3. 3.Fraunhofer Institute for Factory Operation and Automation IFFMagdeburgGermany

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