<abstract xmlns="http://www.w3.org/1999/xhtml">Cross-dating of bricks and mortars from historical building, through thermal (TL) and optically stimulated (OSL) luminescence have achieved good accuracy and precision. However this approach is, in many cases, not exhaustive especially for buildings with different construction phases closely temporally spaced to each other. The uncertainties of experimental data added to the reuse of old bricks and/or the presence of mortars applied on restorations represent the main limits to obtain the complete chronology. In the case of the <italic>Convento de S</italic>. <italic>Francisco (Coimbra</italic>, <italic>Portugal)</italic>, the dating results were crossed with the stratigraphic study of the building, mineralogical characterization by XRD and colorimetric data of the mortar samples. Thanks to luminescence ages, mineralogical composition and color specification, two phases of construction were identified: the first from the 17th century and the first half of the 18th century and the second from the second half of the 18th century to the first half of the 19th century. These results were confirmed by mineralogical characterization and colorimetric measurements of mortars that identify two different types of materials in aggregate/binder ratio terms and superficial optical characteristics.</abstract>

Cross-dating of bricks and mortars from historical building, through thermal (TL) and optically stimulated (OSL) luminescence have achieved good accuracy and precision. However this approach is, in many cases, not exhaustive especially for buildings with different construction phases closely temporally spaced to each other. The uncertainties of experimental data added to the reuse of old bricks and/or the presence of mortars applied on restorations represent the main limits to obtain the complete chronology. In the case of the Convento de S. Francisco (Coimbra, Portugal), the dating results were crossed with the stratigraphic study of the building, mineralogical characterization by XRD and colorimetric data of the mortar samples. Thanks to luminescence ages, mineralogical composition and color specification, two phases of construction were identified: the first from the 17th century and the first half of the 18th century and the second from the second half of the 18th century to the first half of the 19th century. These results were confirmed by mineralogical characterization and colorimetric measurements of mortars that identify two different types of materials in aggregate/binder ratio terms and superficial optical characteristics.

Historical building dating: A multidisciplinary study of the Convento de São Francisco (Coimbra, Portugal)

University of Catania & CHNet INFN Sez Catania

University of Évora, Palácio do Vimioso, Largo Marquês de Marialva

Geochronometria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Cross-dating of bricks and mortars from historical building, through thermal (TL) and optically stimulated (OSL) luminescence have achieved good accuracy and...

Historical building dating: A multidisciplinary study of the Convento de São Francisco (Coimbra, Portugal)

Article Category: Regular Articles

Published Online: Jul 04, 2018

Page range: 119 - 129

Received: May 12, 2017

Accepted: Feb 20, 2018

DOI: https://doi.org/10.1515/geochr-2015-0089

Keywords
brick dating, mortar dating, XRD, colorimetry, characterization, archaeological stratigraphy

© 2017 G. Stella, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Historical building dating: A multidisciplinary study of the Convento de São Francisco (Coimbra, Portugal)

Article Category: Regular Articles

Published Online: Jul 04, 2018

Page range: 119 - 129

Received: May 12, 2017

Accepted: Feb 20, 2018

DOI: https://doi.org/10.1515/geochr-2015-0089

Keywordsbrick dating, mortar dating, XRD, colorimetry, characterization, archaeological stratigraphy

© 2017 G. Stella, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
brick dating, mortar dating, XRD, colorimetry, characterization, archaeological stratigraphy