高分子材料Si97在砖质文物保护方面的应用研究

为找寻适宜砖质文物防风化保护的新材料,摸索出一套较完善的保护方法和经验.在找出导致砖质文物风化、酥碱的主要原因后,对十几种高分子材料进行防水、防酸、防盐、防污染、耐热老化、耐紫外线等试验,从中选择出较为理想的新型保护加固材料Si-97.该材料用于风化、酥碱的砖质文物中,使残损砖质文物得到了一定的保护和加固.不仅达到了延长砖质文物寿命的目的,而且减少了维修经费.Si-97材料是在有机硅中加入二甲基硅烷、胺基硅烷、环氧硅烷等材料进行改性而成,增加了有机硅聚合物的柔韧性、降低了脆性,提高了材料的耐老化性能.Si-97具有较好的保护效果,社会效益和经济效益明显.建议推广应用.     

宁夏固原市北塬东汉墓

1999～2000年,宁夏文物考古研究所等对固原市北塬的两座东汉墓进行发掘。两座墓均为带斜坡墓道、前室穹隆顶、后室券顶的多室墓。出土遗物有陶器、铅釉陶器、铜器、骨器、玉器、琉璃器和钱币等,从墓葬形制和出土遗物看,M1的时代为东汉早期偏晚,M5的时代为东汉中期,墓主可能为地方豪强。     

徐州地区西汉陶俑的发现及初步研究

徐州地区西汉陶俑可分为兵俑、乐舞俑、仪仗俑、侍俑四个大类。并由俱象写实向形神兼备的方向演变,其乐舞俑生动的形象栩栩如生,成为汉代陶俑的经典之作。     

Discrimination of Ceramic Surface Finishing by Vertical Scanning Interferometry

Finishing techniques are significant markers of the technological ‘know‐how’ involved in the production of the traditional, clay‐based ceramic ware. In order to provide a reliable tool to discriminate among two main surface processing techniques—that is, smoothing and burnishing—vertical scanning interferometry (VSI), a recently developed non‐destructive technique for analysing the surface roughness and topography, is applied. The smoothed areas have an obvious roughness expressed by linear structures. The latter are made of parallel ridges and trenches with an average depth of 15–20 μm. Burnishing leads to a lower topography and a lower roughness compared to the smoothed surface section. VSI quantifies the spatial distribution of the surface building blocks, which consist of phyllosilicate aggregates of variable size. The statistical treatment of the roughness data obtained by VSI shows that the surface topography provides significant information on the pottery processing and a clear qualitative and quantitative discrimination between different surfaces. VSI supports the reconstitution of the chaîne opératoire for traditional ceramic pottery and the recognition of the surface finishing techniques.     

Characterization and damage assessment of stones used in the Pasargadae World Heritage Site,Achaemenian period

The architectural remains at Pasargadae were built of three different stones classified according to their colors (beige, dark-gray, and green-gray). The stones show different macroscopic features, such as texture and decay patterns. The aim of this study is to identify the composition of the stones and to evaluate the main decay factors through petrographic studies in order to make conservation decisions more compatible. Petrochemical analyses show that the stones are in fact limestones with different features; two of them have a compact texture (beige and dark-gray stones), while the third has a fairly porous structure (green-gray stone). In some beige stone samples, dolomite was identified. Despite the fact that the presence of salt is a possible decay factor, X-ray diffraction analysis did not report any salt. According to SEM observations, the main reasons for decay in dark-gray and green-gray stones are the dissolution of calcite crystals and the swelling of clay minerals. The main decay factor in the beige stone, by contrast, is dissolution induced by microorganism activity. However, a patina formed by lichens on the surface of the beige stone, although aesthetically detrimental, protects it against further decay.     

Unveiling the Use of Creta in Roman Plasters: Analysis of Clay Wall Paintings From Brixia (Italy)

The paper describes the analysis of a particular kind of plaster from the walls of the Roman Sanctuary (first half of the first century bce ) in the centre of Brixia (now Brescia, Italy), which is an outstanding example of Roman Republican architecture. The walls were plastered and painted with different patterns, imitating marble panels and curtains. Optical microscopy on thin sections, X‐ray diffraction and infrared spectroscopy were performed on several samples of the plaster in order to reveal the execution technique. The palette consisted of glauconite, celadonite, Egyptian blue, and red and yellow ochres. In some cases, an organic compound, possibly a lipidic compound, was present in the external paint layer, as a surface treatment. The plaster contains two superimposed coats: the render coat with lime binder and sandy aggregate; the finish coat with a clay fraction (illite, chlorite, kaolinite), together with calcite from slaked lime and grains of quartz, silicate and carbonate rocks. Although Vitrivius' De architectura reported the use of creta (clay) as daub smeared on reed vaults, the Sanctuary of Brixia represents the first documented use in Roman buildings in a painted plaster laid on a stone masonry wall.     

江苏泰州明代墓葬清理简报

近年来泰州市博物馆抢救性地清理了两处明代墓葬群,出土了一批精美的瓷器,为研究明代泰州的墓葬演变过程提供了宝贵的实物资料。     

苏家村遗址烧土样品的过火温度研究

烧土制品作为最早的人工建筑材料,使人类的居住环境得到了根本性的改善。然而,学界关于烧土建筑的成因存在人为烘烤处理、缘自火焚、废弃习俗等多种观点。通过科技手段研究烧土制品的过火温度,有助于科学分析烧土建筑的成因,探讨与之相关的建筑工艺,丰富史前建筑史研究。磁学研究表明,考古遗址中的土壤及其他沉积物在受热后新生成了磁铁矿、磁赤铁矿等强磁性矿物导致磁性显著增强,且矿物成分和磁性几乎不会再发生变化;但当重烧的温度接近或大于原始烧成温度时,样品中原始矿物的破坏或新矿物的生成,会引起矿物磁性的改变。基于这一原理,实验室内分析受热黏土的磁化率随再加热温度的变化特征,可反映烧土制品的过火温度。苏家村遗址是大汶口文化晚期至龙山文化中期早段一处重要的聚落遗址,遗址中第5层为厚约20～40 cm的红烧土层且覆盖整个遗址,推测为房屋倒塌造成的建筑垃圾堆积层或人为堆积层,出土大量烧土块。本研究利用X射线衍射分析法、X射线荧光光谱分析法和磁化率法等对苏家村遗址出土的烧土样品开展了组成及构造特征和样品的过火温度的综合分析。结果表明,苏家村遗址烧土样品中的白灰层中人为地添加了白色陶土原料,土层中有意地添加了植物残骸作...     

左手弹琴图像管见

本文对画像砖中的左手弹琴问题作了探讨。