中文

Chinese Journal of Nature ›› 2016, Vol. 38 ›› Issue (1): 33-38.doi: 10.3969/j.issn.0253-9608.2016.01.005

• Review Article • Previous Articles     Next Articles

Simulation study on the migration rate of sodium sulfates and sodium chlorides in soil cultural relics body

JIN Zhiliang①②, HAO Xuqiang②, CHEN Gangquan③, XIA Yin④, QIAN Ling①, HU Hongyan①,SU Bomin③, ZHOU Tie④, Lü Gongxuan①   

  1. ①State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; ②School of Chemistry and Chemical Engineering, Beifang University of Nationalities, Yinchuan 750021, China; ③National Ancient Mural Protection Engineering Technology Research Center, The Conservation Research Institute of The Dunhuang Academy, Dunhuang 736200, Gansu Province, China; ④Key Scientific Research Base of Ancient Polychrome Pottery Conservation, State Administration for Cultural Heritage, Emperor Qinshihuang’s Mausoleum Site Museum, Lintong 710600, Shaanxi Province, China
  • Received:2015-09-01 Online:2016-02-25 Published:2016-02-23

PDF

116

Abstract: Taking the soil cultural relics body as the object, the migration rates and the migration coefficients of Na2SO4 and NaCl were obtained by means of the soil column experiment. The apparent permeability coefficients of NaCl were greater than those of the Na2SO4  in various migration patterns. The apparent migration coefficients from top to bottom with the action of gravity were greater than those of from bottom to top. Due to the facts that Na2SO4 was more easily adsorbed by soil colloid and its crystal structure was changeable, its solubility was dramatically increased with temperature. Thus the apparent permeability coefficient of Na2SO4  was reduced. At the same time, the serious powder and structural damage in soil column were caused by Na2SO4 . And then the deep effects on the soil cultural relics body were found when the Na2SO4  participated in.