Among many other issues, characterisation of construction techniques is very interesting for understanding protohistoric societies. In the case of Iron Age sites in the Iberian Peninsula, knowledge about materials and construction techniques is minimal. This work explores the challenges of the characterisation of earth mortars in Iron Age sites in the N.W. of the Iberian Peninsula, focusing the study on the archaeological site of Castro de Santa Trega (Galicia, Spain). Samples of mortars, renders and plasters were taken from walls, and mineral composition, texture and micromorphological features were obtained. The results, which are discussed taking into account the particular historiographic framework of this site, confirmed the absence of lime mortars and the widespread use of local raw materials for the production of complex construction materials.

在许多其他问题中，构造技术的表征对于理解原始历史社会非常有趣。就伊比利亚半岛的铁器时代遗址而言，有关材料和建造技术的知识很少。这项工作探索了在伊比利亚半岛西北部铁器时代遗址中对砂浆进行表征的挑战，并将研究重点放在了Castro de Santa Trega的考古遗址上（西班牙加利西亚）。从墙壁上获取灰浆，抹灰和灰泥的样品，并获得矿物成分，质地和微形态特征。考虑到该地点的特定历史学框架对结果进行了讨论，结果证实了没有石灰砂浆，并且广泛使用了本地原材料来生产复杂的建筑材料。