摘要
对丙烯酸树脂非水分散体等几种土遗址防风化加固剂进行了加固效果对比检验 ,包括加固前后土样各种性能的变化 ,如 :重量、颜色、孔隙率变化 ,抗压强度的提高 ,耐水、耐冻融、耐盐能力的增加等。通过检验发现 ,在所试材料中丙烯酸树脂非水分散体加固剂在浓度非常低的情况下对土体就有加固作用 ,使土体具有很好的耐水性、耐冻融能力 ,耐盐破坏能力也有提高 ,并且不影响土体的外观和透气性。而其它材料如正硅酸乙酯、丙烯酸树脂、聚氨酯、聚酯等虽在一些性能上能满足需要 ,但还有一些方面不能满足要求。对比表明 ,丙烯酸非水分散体是一类优良的土遗址防风化加固剂。
Acrylic nonaqueous dispersion and several other kinds of material was tested as antiweathering consolidants for earthen constructed excavated sites and monuments. Before and after the treatment, the properties of clay samples were tested on the changes of weight, color, porosity and the change of compress strength, the change during water decomposing test, and freezingthawing cycle test, salt efflorescence test. It revealed that clay samples treated with acrylic nonaqueous dispersion at low concentration gain good stability against water decomposition test, freezingthawing cycle test, salt crystal test, while the appearance and permeability nearly unchanged. Traditional consolidants such as tetraethoxysilicate, acrylic resin, polyurethane and polyester have also been tested, and their advantages and disadvantages were compared. Acrylic monaqueous dispersion was proved to be excellent antiweathering consolidants for earthen remain sites.
出处
《文物保护与考古科学》
2003年第2期40-48,共9页
Sciences of Conservation and Archaeology
关键词
非水分散体
加固剂
土遗址
保护
Nonaqueous dispersion, Consolidant, Earthen archaeological sites, Conservation
