ABSTRACT Preservation of cuneiform tablets made with clay minerals is an ongoing conservation issue. A treatment based on TEOS consolidation has been used since 1996 at the Louvre museum. The characterization of the tablets pointed out kaolinite, illite, and smectite as the three main clay minerals constituting the objects. In this research, the physico-mechanical aspects of the treatment are investigated. The penetration depth of the TEOS solution and the gradient induced are quantified using laboratory samples. TEOS treatment preserves the macroscopic swelling and the vapour transfer properties, but modifies the clay’s affinity to moisture. Elastic properties are gradually improved for all clays, but only kaolinite’s strength increases significantly. The impact of TEOS treatment on the natural behaviour related to the respective structure of the clays is considered, and the amount of kaolinite required to create adequate reactions appears to be of interest for conservation treatments.

中文翻译：

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用于未烘烤地球片剂保护的硅酸乙酯：物理力学方面的评价

摘要 保存粘土矿物制成的楔形文字片是一个持续的保护问题。自 1996 年以来，卢浮宫博物馆就采用了基于 TEOS 合并的处理方法。片的表征指出高岭石、伊利石和蒙脱石是构成对象的三种主要粘土矿物。在这项研究中，研究了治疗的物理机械方面。TEOS 溶液的渗透深度和梯度诱导使用实验室样品进行量化。TEOS 处理保留了宏观膨胀和蒸汽传输特性，但改变了粘土对水分的亲和力。所有粘土的弹性性能逐渐提高，但只有高岭石的强度显着增加。