期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：s
页码：4907-4914
出版社：University of Mohammed Premier Oujda
摘要：The ancient rampart of Sale city shows a very advanced degree of deteriorationpatterns. To determine the relationship between the environment conditions and thestone decay, an elaborate study (X-ray fluorescence, Ion chromatography, X-RayDiffraction, Scanning electron microscopy and Atomic emission spectrometry) hasbeen carried out on decayed layers at the surface of the rampart. The results showthat the deterioration of the stone is mainly related to atmospheric pollutants (SO2,NOx) and in the second row the action of marine sprays by Na+ and Cl-deposition.The crystallized gypsum (CaSO4·2H2O) characterized the most of surface depositsand it’s formed by calcarenite oxidation of (CaCo3) particles reacting to atmosphericsulfur.
