›› 2014, Vol. 35 ›› Issue (S1): 57-62.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on thermal parameters of different earthen monument soils

ZHANG Hu-yuan1,2，ZHANG Xue-chao2，CHEN Xiao-ning2   

  1. 1. Key Laboratory of Mechanics on Disaster and Environment in Western China of Ministry of Education, Lanzhou University, Lanzhou 730000, China; 2. School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China
  • Received:2013-11-19 Online:2014-06-10 Published:2014-06-20

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Abstract: X In order to study the influence of dry density, water content and soluble salt content on the thermal deterioration of earthen monuments, Hot Disk heat constant analyzer is used to test the thermal parameters of soils from different earthen monument sites such as Liangzhu, Tunguska Brazil and Jiaohe. Meanwhile, Tunguska Brazil soil is concentrated with different concentrations of NaCl, then the thermal conductivity coefficient is measured to analyze the influence of salt content. The results show that the thermal conductivity coefficients of three types of soils increase linearly with increasing water content and dry density. The thermal diffusion coefficient and specific heat volume are also increased with increasing water content and dry density. The thermal parameters of earthen monuments soils are found to be correlated positively to the SiO2 content in soil. For the above-mentioned three sites soils, their thermal parameters are different under same conditions; the Liangzhu soil is the greatest; Tunguska Brazil soil is second and Jiaohe is the least. In addition, concentrated NaCl increases the thermal conductivity of soil.

Key words: earthen monument, thermal deterioration, thermal parameters, dry density, moisture content

CLC Number: 

  • TU 412
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