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2018
- handle: 10670/1.vf4b2l
- hal: hal-01867379
- doi: 10.5194/adgeo-45-19-2018
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info:eu-repo/semantics/altIdentifier/doi/10.5194/adgeo-45-19-2018
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Kun Zhang et al., « Mortar mixes with oxblood: historical background, model sample recipes and properties », HAL-SHS : architecture, ID : 10.5194/adgeo-45-19-2018
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Résumé
In this survey we present studies on mortar mixes added with oxblood, which was a commonly found local waste material, with a wide application and long history of use; a precise recipe of lime–pozzolan mortar with blood addition from a 19th-century Italian manual was chosen, and model samples were prepared accordingly, with the aim of better understanding the chemical, mineralogical and physical characteristics of such compositions, starting with a blank reference specimen. The specimens were analysed by means of scanning electron microscopy, infrared spectroscopy, thermal analysis and X-ray diffraction, and the results suggested that amorphous calcium carbonate could be formed in the specimens with oxblood addition. These preliminary results allow a better understanding of historical building practices, measuring effects induced by organic additives on mortar mi-crostructure, as well as an evaluation of new performances obtained in mortar mixes. Moreover, this paper intends to propose a full multi-discipline approach to bridge the history of architecture and building materials to conservation science.