Chemistry of 19th Century Lime Mortar on a tabique Pampango (Wattle-and-Daub) from the Philippines

Jan-Michael Cayme

doi:10.37558/gec.v21i1.1034

Jan-Michael Cayme Chemistry Department De La Salle University, Manila Philippines

DOI: https://doi.org/10.37558/gec.v21i1.1034

Palavras-chave: argamassa, wattle-and-daub, tabique Pampango, XRF, XRD, FTIR, TGA, análise de peneira, Filipinas

Resumo

Neste estudo é relatada a caracterização química de um revestimento de argamassa de cal espessa num método de construção de paredes nas Filipinas, denominado tabique Pampango, ou método wattle-and-daub. O material de argamassa de um convento da igreja do período colonial Espanhol do século XIX em Loboc, Bohol, foi analisado mediante Fluorescência de raios X (XRF), Difração de raios X (XRD), Espectroscopia de infravermelho com transformada de Fourier (FTIR), análise termogravimétrica (TGA) e análise de peneira. Estas análises demonstram que o material é composto por um aglutinante amplamente calcítico com minerais argilosos presentes de forma natural na na matéria-prima ou solos argilosos adicionados intencionalmente. A presença de minerais argilosos tornou o aglutinante hidráulico ou endurecido por meio da adição de água. Os agregados de tamanho fino são abundantes, tornando-o adequado para aplicações que não suportam carga. Este estudo proporcionou uma base química sobre as técnicas de construção empregues durante o período colonial nas Filipinas, que é útil para o avanço do trabalho de conservação e para o conhecimento histórico local.

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Biografia Autor

Jan-Michael Cayme, Chemistry Department De La Salle University, Manila Philippines

Jan Michael C. Cayme is an assistant professorial lecturer at the Chemistry Department of the De La Salle University, Manila, a licensed chemist in the Philippines, holder of a Masters’ Degree in Chemistry and completing a Ph.D. in Chemistry at the University of the Philippines, Diliman. He has several peer-reviewed publications in local and international scientific journals on the chemical analysis of colonial period-built materials in the Philippines. As a faculty member of the Chemistry Department at the De La Salle University, Manila, and The Graduate School of the University of Santo Tomas, he initiated the teaching of advanced analytical chemistry techniques with a focus on cultural heritage for chemistry majors and a general scientific approach to chemistry and cultural heritage for non-science majors. He is also a former field cultural researcher of the Institute of Philippine Culture at the Ateneo de Manila University, documenting the architectural styles and history of pre-World War 2 structures in Metro Manila.

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Química da argamassa de cal do século XIX num Tabique Pampango (Wattle-and-Daub) das Filipinas

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