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A method of determining liquid water and ice in thermophysical tests on porous materials

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Abstract

A method is described for quantitative determination of liquid water and ice based on the sharp difference between the time characteristics of water and heat transport.

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Abbreviations

ε:

dielectric constant

γ0 :

density of dry material

u:

moisture content

l :

thickness

δ :

relative error

vi :

volume proportion of phase i

Literature cited

  1. V. S. Roife and P. I. Popov, “Methods of determining amounts of liquid water and ice,” in: Papers from Khabarovsk Polytechnical Institute: Construction and Operation of Automobile Roads in the Far East [in Russian], Khabarovsk (1973), pp. 198–209.

  2. M. I. Frimshtein and Yu. Ya. Yasin, Inventor's Certificate No. 197233, “Method of determining the amount of liquid water at negative temperatures in constructions,” Byull. Izobret., No. 12, 112 (1967).

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  3. V. S. Roife, “Methods of determining water content by layers in thermophysical tests on wall constructions,” in: Thermoprotection Properties of Wall Constructions in Industrial Buildings [in Russian], Issue 14, Trans NIISF, Moscow (1975), pp. 68–76.

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  5. V. S. Roife, Inventor's Certificate No. 621993, “A method of determining the amount of frozen and unfrozen water in open-pore materials,” Byull. Izobret., No. 32, 135 (1978).

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Author information

Authors and Affiliations

  1. Building Physics Research Institute, Moscow

    V. S. Roife

Authors
  1. V. S. Roife
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Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 40, No. 5, pp. 889–893, May, 1981.

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Roife, V.S. A method of determining liquid water and ice in thermophysical tests on porous materials. Journal of Engineering Physics 40, 552–554 (1981). https://doi.org/10.1007/BF00822124

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  • DOI: https://doi.org/10.1007/BF00822124

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