X-ray computed tomography investigation of structures in Opalinus Clay from
large-scale to small-scale after mechanical testing

Kaufhold, Annette; Halisch, Matthias; Zacher, Gerhard; Kaufhold, Stephan

doi:https://doi.org/10.5194/se-7-1171-2016

Articles | Volume 7, issue 4

https://doi.org/10.5194/se-7-1171-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Pore-scale tomography & imaging - applications, techniques...

https://doi.org/10.5194/se-7-1171-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 7, issue 4

Method article

|

03 Aug 2016

Method article |

| 03 Aug 2016

X-ray computed tomography investigation of structures in Opalinus Clay from large-scale to small-scale after mechanical testing

Annette Kaufhold, Matthias Halisch, Gerhard Zacher, and Stephan Kaufhold

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Final revised paper (published on 03 Aug 2016)
Supplement to the final revised paper
Preprint (discussion started on 09 Mar 2016)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Overall Rating and detailed listing of various questions and suggestions', Werner Graesle, 29 Mar 2016
RC2: 'Interactive comment for X-ray Computed Tomography Investigation of Structures in Opalinus Clay from Large Scale to Small Scale after Mechanical Testing by Annette Kaufhold et al.', Anonymous Referee #2, 05 Apr 2016
AC1: 'Author's answers', Matthias Halisch, 13 Apr 2016

Short summary

The OPA material has been intensively studied by a variety of multiple scale and non-destructive 3-D X-ray CT investigations, following a consequent top-down approach to identify specific regions of interest. According to the mechanical experiment, it has been observed that the shear failure is located in a clay-rich area. Within the intersecting area of the two main fractures, a so called mylonitic zone with a particle reduction was observed on the open shear failure using CT and SEM techniques.