长城居庸关云台病害现状与原因研究
发布时间：2018-11-21 11:49
【摘要】：通过现场调查对云台石质文物的主要病害类型进行了总结,利用X-射线衍射仪(XRD)、扫描电子显微镜-能谱仪(SEM-EDS)、离子色谱测试仪(IC)分别得到石质样品的矿物成分、表面形貌、元素种类及含量、可溶盐的种类及含量,综合这几种表征方法深入分析石质文物病害产生的原因。现场调查发现云台主要存在的病害类型为表面泛盐、片状脱落、裂缝等;白色盐害主要是由于可溶盐离子K~+、Na~+、Ca~(2+)、SO_4~(2-)含量较大,结晶析出CaSO_4·2H_2O、K_2SO_4、Na_2SO_4·10H_2O等盐而覆盖在岩石表面所致,片状脱落、裂缝的产生也与可溶盐的晶涨、温差、冻融等作用有关。
[Abstract]:The main disease types of Yuntai stone relics were summarized by field investigation, and (XRD), scanning electron microscopy (SEM-EDS) was used. The mineral composition, surface morphology, element type and content, soluble salt species and content of stone samples were obtained by ion chromatography (IC), respectively. The causes of stone cultural relic diseases were thoroughly analyzed by these methods. Field investigation found that the main types of cloud head disease are surface salt, shedding, crack and so on. The white salt damage is mainly caused by the large contents of soluble salt ions K ~, Na~, Ca~ (2), SO_4~ (2-) and the precipitation of CaSO_4 _ 2H _ 2O _ K _ 2SO _ 4 and Na _ 2SO _ 4 10H_2O etc. Sheet shedding and cracks are also related to the crystal rise, temperature difference, freezing and thawing of soluble salt.
【作者单位】： 北京化工大学材料科学与工程学院;文物保护领域科技评价研究国家文物局重点科研基地;北京市古代建筑研究所;
【基金】：北京市科技计划(Z151100002115035)
【分类号】：K876.2;TU746.1
本文编号：2346878
[Abstract]:The main disease types of Yuntai stone relics were summarized by field investigation, and (XRD), scanning electron microscopy (SEM-EDS) was used. The mineral composition, surface morphology, element type and content, soluble salt species and content of stone samples were obtained by ion chromatography (IC), respectively. The causes of stone cultural relic diseases were thoroughly analyzed by these methods. Field investigation found that the main types of cloud head disease are surface salt, shedding, crack and so on. The white salt damage is mainly caused by the large contents of soluble salt ions K ~, Na~, Ca~ (2), SO_4~ (2-) and the precipitation of CaSO_4 _ 2H _ 2O _ K _ 2SO _ 4 and Na _ 2SO _ 4 10H_2O etc. Sheet shedding and cracks are also related to the crystal rise, temperature difference, freezing and thawing of soluble salt.
【作者单位】： 北京化工大学材料科学与工程学院;文物保护领域科技评价研究国家文物局重点科研基地;北京市古代建筑研究所;
【基金】：北京市科技计划(Z151100002115035)
【分类号】：K876.2;TU746.1
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