The presence of stucco marble in the Portuguese architecture is not surveyed and studies addressing the materials used to produce it are almost inexistent.

In this paper, the results of the multi-analytical characterisation using XRD, SEM-EDS, Py-GC/MS and the determination of capillary water absorption and dynamic modulus of elasticity of 15 samples belonging to seven case studies are presented and discussed. XRD showed that gypsum is the main constituent, but anhydrite is also present in most samples. These results were consistent with the observations by SEM-EDS, attesting temperatures of calcination above 350ºC. The use of a multiphase gypsum plaster as a binder was probably intentional. The treatment of the surfaces, which is used to obtain an aesthetical appearance similar to the natural stone, has also a major influence in the main properties of the final materials. The search for organic compounds showed the presence of animal glues in the inner core and beeswax and oils at the surface.

The dynamic moduli of elasticity are extremely high in the samples incorporating anhydrite and the capillary water absorption is almost inexistent.

The results obtained intend to contribute to promote sustainable interventions on this type of materials, namely the future development of compatible restoration products.

尚未对葡萄牙建筑中灰泥大理石的存在进行调查，并且几乎没有针对生产大理石的材料进行研究。

本文介绍并讨论了使用XRD，SEM-EDS，Py-GC / MS进行多分析表征的结果以及确定七个案例研究的15个样品的毛细管吸水率和动态弹性模量的结果。X射线衍射表明，石膏是主要成分，但大多数样品中也存在硬石膏。这些结果与SEM-EDS的观察结果相符，证明煅烧温度高于350ºC。使用多相石膏灰泥作为粘合剂可能是有意的。用于获得类似于天然石材的美学外观的表面处理对最终材料的主要性能也有重大影响。对有机化合物的搜索显示，内核中存在动物胶，表面上存在蜂蜡和油。

在掺入硬石膏的样品中，动态弹性模量极高，并且几乎不存在毛细管吸水率。

获得的结果旨在促进对此类材料的可持续干预，即兼容修复产品的未来开发。