Elemental analysis of old mortar used in various archaeological sites of Bangladesh by SEM and EDAX
| Autor: | Achia Khanom, Al Mamun, DK Saha, SM Rahaman |
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| Rok vydání: | 2013 |
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| Zdroj: | Journal of the Asiatic Society of Bangladesh, Science. 38:145-153 |
| ISSN: | 2408-8676 1016-6947 |
| Popis: | Morphological characterization and mineralogical studies were performed on fifteen mortar samples collected from three ancient archaeological sites (Wari-Bateshwar, Lalmai-Mainamati, and Paharpur) of Bangladesh. Many cracks and pores were found in the mortar samples of Buddhist Lotus temple of Wari-Bateshwar. Energy dispersive analytical x-ray analysis confirmed the presence of C, O, P, K, Al, Fe, Na, Mg, Mn, Si and Ti in the mortar samples. The absence of Ca in the samples indicates that the clay was used in the architecture as binding materials. In the clay mortar, Si played an important role and with the presence of O 2 , SiO 2 was formed, which strengthened the binder. K, Al, Fe, Na, Mg, Mn, Si and Ti might form compounds like SiO 2 , Fe 2 O 3 , K 2 O, Al 2 O 3 , MgO, MnO, Na 2 O 3 , and TiO 2 with O 2 . The oxidation of Fe +2 produced Fe 2 O 3 which was responsible for breaking down the bonding of mortars. DOI: http://dx.doi.org/10.3329/jasbs.v38i2.15595 J. Asiat. Soc. Bangladesh, Sci. 38(2): 145-153, December 2012 |
| Databáze: | OpenAIRE |
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