A high relief stucco decoration from the Great Chamber of the castle Červená Lhota in the Southern Bohemia was surveyed and characterised as a part of its planned conservation. A detailed analytical work was undertaken in order to provide support for the repair works that aimed to be based on a good knowledge of the original materials and application techniques. The main research focus was on the fruit pieces decorating the ribs of vaults. Altogether, over 20 mortar samples were collected from the vault bedding mortar, plaster, stucco elements and the stucco pieces themselves. Additionally, some pieces of stucco (fruits), that were loose and had to be temporarily removed, were studied macroscopically and by X-ray CT. The characterisation of binder, aggregate and additives was carried out using OM, SEM, TA, acid attack, sieve analysis of insoluble residue, XRD, FTIR and nL-MS. It led to an understanding of the uses of various mortar mixes and determination of their composition. The results are discussed as an example of an analytical procedure that aimed at understanding in detail of this historically significant technique from a material and technological standpoint.

对波希米亚南部城堡ČervenáLhota城堡大房间的浮雕灰泥装饰进行了调查，并将其作为计划保护的一部分。进行了详细的分析工作，以便为旨在基于对原始材料和应用技术的充分了解的维修工作提供支持。主要研究重点是装饰拱顶肋骨的水果片。总共从穹顶垫层砂浆，灰泥，灰泥元素和灰泥碎片本身中收集了20多个砂浆样品。此外，肉眼可见的一些灰泥（水果）碎片需要通过X射线CT进行宏观研究。粘结剂，骨料和添加剂的表征使用OM，SEM，TA，酸侵蚀，筛分不溶残留物，XRD，FTIR和nL-MS。它使人们了解了各种砂浆混合物的用途并确定了它们的组成。讨论结果作为分析程序的一个示例，旨在从材料和技术的角度详细了解这一具有历史意义的技术。