In-situ X-ray micro-diffraction studies of heterogeneous interfaces between cementitious materials and geological formations

Dähn, Rainer; Popov, Dmitry; Schaub, Philippe; Pattison, Philip; Grolimund, Daniel; Mäder, Urs; Jenni, Andreas; Wieland, Erich (2014). In-situ X-ray micro-diffraction studies of heterogeneous interfaces between cementitious materials and geological formations. Physics and chemistry of the earth, 70-71, pp. 96-103. Elsevier 10.1016/j.pce.2013.10.010

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In the present study the challenge of analyzing complex micro X-ray diffraction (microXRD) patterns from cement–clay interfaces has been addressed. In order to extract the maximum information concerning both the spatial distribution and the crystal structure type associated with each of the many diffracting grains in heterogeneous, polycrystalline samples, an approach has been developed in which microXRD was applied to thin sections which were rotated in the X-ray beam. The data analysis, performed on microXRD patterns collected from a filled vein of a cement–clay interface from the natural analogue in Maqarin (Jordan), and a sample from a two-year-old altered interface between cement and argillaceous rock, demonstrate the potential of this method.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences
08 Faculty of Science > Institute of Geological Sciences > Rock-Water Interaction

UniBE Contributor:

Mäder, Urs and Jenni, Andreas

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

1474-7065

Publisher:

Elsevier

Language:

English

Submitter:

Andreas Jenni

Date Deposited:

03 Apr 2014 22:47

Last Modified:

03 Aug 2017 09:22

Publisher DOI:

10.1016/j.pce.2013.10.010

Uncontrolled Keywords:

MicroXRD, Cement, Maqarin, Cement–clay interfaces

BORIS DOI:

10.7892/boris.48258

URI:

https://boris.unibe.ch/id/eprint/48258

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