Thermal and phase analysis of Roman and Late Antiquity mortars from Bulgarian archaeological sites

Kostova, Bilyana and Dumanov, Boyan and Stoyanov, Ventseslav and Shivachev, Boris (2023) Thermal and phase analysis of Roman and Late Antiquity mortars from Bulgarian archaeological sites. Journal of Thermal Analysis and Calorimetry, 148 (4). pp. 1543-1555. ISSN 1588-2926

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By using the methods of archaeological chemistry—thermal analysis, powder X-ray diffraction analysis, and Fourier transform infrared measurements, 13 mortar samples from the Roman age and Late Antiquity were investigated. The results of the investigation showed the phase composition and probable raw materials that were used. The defined composition, type, and properties of the mortars prove that the same production technology was used in both the Roman and Late Antiquity. The exponential dependence of temperature of the point of inflection (Tinfl) by mass loss (ML) of calcite decarbonation was found, specifying that the decrease in mortar structure homogeneity and compactness leads to a decrease in calcite decarbonation temperature. All studied samples were defined as non-hydraulic lime mortars without any hygroscopic properties. The samples are of different binder to aggregate (B/A) ratios, as no relation between the B/A ratio and the purpose of mortar use was established. The experimental results related to the geological setting of the area provide additional information about people's knowledge of the environment. The results obtained are of fundamental and practical use, helping a future archaeological interpretation.

Item Type:Article
Uncontrolled Keywords:Roman and Late Antiquity mortars, Bulgarian archaeological sites, Archaeological chemistry,Thermal analysis,
Subjects:Earth and environmental sciences > Geology
History.Archaeology > Archaeology
ID Code:4796
Deposited By: PhD Bilyana Kostova
Deposited On:15 Jun 2023 11:25
Last Modified:15 Jun 2023 11:28

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