Experimental research on the freeze capacity of pisha sandstone under the multifactors
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(College of Water Conservancy and Civil Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China)

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TU443

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    Abstract:

    In order to study the relationship between freeze capacity of pisha sandstone and its moisture rate, temperature, and dry density as well, this paper focuses on the multi-factor experiment on different moisture, temperature, and dry density at Zhungeer Banner, Erdos City, Inner Mongolia Autonomous Region. According to the study, it will almost not be frozen, when the moisture rate is below 11%. When it comes between 12% to 16%, the moisture rate will be changed. The freeze rate is increased with the increase of the dry density. It will be performed exceptionally, when the temperature is below -20 centi-degree. The freeze rate is increased with the decrease of the temperature of its cold end portion. However, as for the materials which own 1.85 g/cm3 dry density, the freeze rate is in decreasing state with the decrease of the temperature of its cold end portion. By SPSS software on the study of its data with multi-non-linear regression, the regression equations of freeze rate is confirmed under multi-factor among the moisture rate, dry density, and temperature.

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History
  • Received:March 26,2015
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  • Online: November 09,2016
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