Thermal and infrared spectroscopic characterization of historical mortars

被引:48
作者
Paama, L
Pitkanen, I
Ronkkomaki, H
Peramaki, P
机构
[1] Tartu State Univ, Inst Chem Phys, EE-2400 Tartu, Estonia
[2] Univ Jyvaskyla, Dept Chem, FIN-40351 Jyvaskyla, Finland
[3] Oulu Univ, Dept Chem, FIN-90571 Oulu, Finland
关键词
acid-soluble components; historical mortars; ICP-AES; infrared spectroscopy; TG-DTG analysis;
D O I
10.1016/S0040-6031(98)00421-3
中图分类号
O414.1 [热力学];
学科分类号
摘要
The characterization of historical mortars was performed by thermal analysis (TG-DTG), simultaneous infrared spectroscopy (TG-FTIR) and inductively coupled plasma atomic emission spectrometry (ICP-AES). The samples were taken from St. John Church (Tartu, Estonia), built in the 13th-14th centuries. The analyses are important for the restoration of the church. In reality, mortar is a very difficult system, the lime is accompanied with different hydraulic components. TG-DTG analysis and FTIR methods can be used to identify various components of mortar and to observe the reactions associated with the controlled heating at 25-900 degrees C in dynamic air and nitrogen atmosphere. The elemental composition of the acid-soluble components (ASC) was determined by using the ICP-AES techniques. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:127 / 133
页数:7
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