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Capillary water absorption characteristics of some Cappadocian ignimbrites and the role of capillarity on their deterioration

  • İsmail DinçerEmail author
  • Meliha Bostancı
Original Article
  • 108 Downloads

Abstract

Cappadocia stands out as one of the most important regions in Turkey for its natural, historical, and cultural heritages. The region is under the influence of wetting and drying and freezing and thawing weathering processes, which are largely controlled by the water content. Water migrates through rock pores via different processes, such as capillary water absorption, which is one of the most common ways observed in the Cappadocia region. In this study, a research program consisting mainly of laboratory studies was carried out to investigate the capillary water absorption characteristics of ignimbrites, which are the host rocks of many natural and historical heritage structures in Cappadocia. Accordingly, XRD analyses, mercury porosimeter, and capillary water absorption tests were performed. The pore size distribution, which is a function of welding degree, controls the capillary water absorption process of ignimbrites. Particularly, ignimbrites that have a uniform pore size distribution of around 5–10 µm reveal higher capillary water absorption potential. Ignimbrites have a considerable and variable potential in terms of capillarity, and the capillarity plays a major role on the deterioration and decomposition of many of the historical and natural heritage structures in the Cappadocia region.

Keywords

Ignimbrite Capillarity Deterioration Anisotropy Cappadocia 

Notes

Acknowledgements

We are grateful to Dr. Mutluhan AKIN and Dr. Ahmet ORHAN for their constructive scientific discussion and excellent suggestions. We would also like to thank the Tufan KOÇYİĞİT for his help in laboratory studies. Constructive review by two anonymous reviewers is gratefully acknowledged. This study was financially supported by the Scientific Research Projects Office of Nevşehir Hacı Bektaş Veli University (Project Number NEÜBAP162F14).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Geology Engineering, Engineering-Architecture FacultyNevşehir Hacı Bektaş Veli UniversityNevşehirTurkey

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