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Advances in Geosciences An open-access journal for refereed proceedings and special publications
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Volume 45 | Copyright
Adv. Geosci., 45, 19-24, 2018
https://doi.org/10.5194/adgeo-45-19-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  20 Jul 2018

20 Jul 2018

Mortar mixes with oxblood: historical background, model sample recipes and properties

Kun Zhang1, Laura Rampazzi2, Maria Pia Riccardi3, Antonio Sansonetti4, and Alberto Grimoldi1 Kun Zhang et al.
  • 1Dep. DASTU, Polytechnic University of Milan, 20133 Milan, Italy
  • 2Dep. DISAT, University of Insubria, 22100 Como, Italy
  • 3Dep. Earth and Environmental Sciences, University of Pavia, 27100 Pavia, Italy
  • 4ICVBC, CNR National Research Council, 20125 Milan, Italy

Abstract. 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 microstructure, 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.

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In this survey, model samples were prepared according to an ancient lime–pozzolan mortar recipe with blood addition. Samples were studied by several analytical techniques. Results suggested that amorphous calcium carbonate could be formed in the specimens containing oxblood. This paper aims to allow an understanding of possible effects induced by organic additives on mortars and proposes a multi-discipline approach to bridge architectural history and building materials to conservation science.
In this survey, model samples were prepared according to an ancient lime–pozzolan mortar recipe...
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