DBPapers
DOI: 10.5593/SGEM2014/B12/S2.082

NATURAL STONES’ CHEMICAL COMPOSITION EFFECT ON THEIR HYGROSCOPIC ADSORPTION ABILITY

E. Emir
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 643-650 pp

ABSTRACT
In Anatolia, there has been a widespread usage of natural stones for various purposes. In every part of country, it is possible to come across with different type of stone buildings belong to different historical periods. In this study, it is aimed at finding the relationship between chemical composition and hygroscopic adsorption ability of these natural building stones. Hereby, this study was conducted on some different types of natural stones from Anatolia such as granite, basalt, travertine, limestone and tuff. Tuff is the one having most hygroscopic ability among these studied rocks and it is followed by granite and basalt. Chemical compositions of the studied rocks were obtained from Xray spectrometer (XRF) analyses. The oxides existing in all of them (SiO2, CaO, Fe2O3, MnO and SO3) were compared with each other by simple regression analysis and it was concluded that there is only significant relationship between SiO2 and CaO wt%. Furthermore, the oxides were compared with the physical properties of the studied rocks by simple regression analysis, and no meaningful relationship was obtained between physical properties and the oxides except for significant relationships between hygroscopic adsorption property and the oxides such as SiO2 and CaO. Consequently, it is suggested that hygroscopic adsorption property has a significant relation with chemical composition of rocks, such as SiO2 and CaO contents.

Keywords: hygroscopic adsorption, calcium oxide, natural stone