About the effectiveness of a hydrophobic surface treatment of Baumberger Sandstones

dc.contributor.authorOrlowsky, Jeanette
dc.contributor.authorGroh, Melanie
dc.contributor.authorBraun, Franziska
dc.date.accessioned2023-06-22T13:51:07Z
dc.date.available2023-06-22T13:51:07Z
dc.date.issued2022-01-31
dc.description.abstractThe Baumberger Sandstone, a sandy limestone, is used since the Middle Ages as a building material not only in the surrounding Münster region of North Rhine-Westphalia (Germany), where it is quarried since to date. To prevent the ingress of water and reduce weathering processes conservation methods, mostly in form of organosilicon compounds, were used. This study deals with the performance of applied hydrophobing agents on Baumberger Sandstone samples and their influence on the weathering processes during long-term exposure. The samples were exposed at several locations in Germany to different climatic conditions for up to 24 years. Afterwards, investigations concerning the water absorption behaviour and the degree of superficial damages were carried out. With an evaluation method on basis of NMR measurements, a very low and uneven distributed effective hydrophobic zone could be detected. This caused an ingress of water in the uppermost part and a progressive weathering of investigated natural stones. Thus the hydrophobic surface treatment did not lead to a significant decrease of weathering or damaging processes. Based on these results a hydrophobic surface treatment of Baumberger Sandstone seems not to be suitable.en
dc.identifier.urihttp://hdl.handle.net/2003/41839
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-23682
dc.language.isoende
dc.relation.ispartofseriesEnvironmental earth sciences;81(3)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de
dc.subjectBaumberger Sandstoneen
dc.subjectLong-term weatheringen
dc.subjectHydrophobing agenten
dc.subjectConservationen
dc.subjectDurabilityen
dc.subjectSingle-sided NMRen
dc.subject.ddc690
dc.titleAbout the effectiveness of a hydrophobic surface treatment of Baumberger Sandstonesen
dc.typeTextde
dc.type.publicationtypeArticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationOrlowsky, J., Groh, M. & Braun, F. About the effectiveness of a hydrophobic surface treatment of Baumberger Sandstones. Environ Earth Sci 81, 90 (2022). https://doi.org/10.1007/s12665-022-10186-2de
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1007/s12665-022-10186-2de

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