Quick determination of water vapor permeability and water vapor resistance of plasters and putties

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Resumo

The existing methods for determining the coefficient of vapor permeability and vapor permeability resistance of plaster and putty materials are characterized by a long time of the experiment.This underlines the need to create a method for accelerated determination of these indicators, taking into account the simplicity of its practical implementation.The paper provides a detailed description of the proposed method, indicating experimental procedures and an algorithm for processing measurement results.The correspondence of the results of the determination of the vapor permeability coefficient by the accelerated method and according to GOST 25898–2020 is shown.

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Sobre autores

S. Araslankin

«Exponenta» LLC

Autor responsável pela correspondência
Email: ceo@sci-exp.ru

General Director 

Rússia, 26A, Stanislavskaya Street, Ruzaevka, Republic of Mordovia, 431448

A. Buryanov

National Research Moscow State University of Civil Engineering

Email: rga-service@mail.ru

Doctor of Sciences (Engineering) 

Rússia, 26, Yaroslavskoe Highway, Moscow, 129337

Bibliografia

  1. GOST 31357–2007. Dry building cement binder mixes. General specifications. Moscow: Standardinform. 2008. 12 p. (In Russian).
  2. GOST 33083–2014. Dry building plaster cement binder mixes. Specifications. Moscow: Standardinform. 2019. 11 p. (In Russian).
  3. GOST 33699–2015. Dry building putty cement binder mixes. Specifications. Moscow: Standardinform. 2016. 11 p. (In Russian).
  4. Perekhozhentsev A.G. Teoreticheskiye osnovy i metody rascheta temperaturno-vlazhnostnogo rezhima ograzhdayushchikh konstruktsiy zdaniy [Theoretical foundations and methods for calculating the temperature and humidity conditions of building enclosing structures]. Volgograd: VolgGASU. 2008. 211 p.
  5. GOST 25898–2020. Building materials and products. Methods for determination of water vapor permeability and water vapor resistance. Moscow: Standardinform. 2021. 14 p. (In Russian).
  6. Volkov A.I., Zharsky I.M. Bol’shoi khimicheskii spravochnik [Large chemical reference book]. Minsk: Sovremennaya shkola. 2005. 608 p.
  7. Reid R., Prausnits J., Sherwood T. Svoistva gazov i zhidkostei [The properties of gases and liquids]. Leningrad: Khimiya. 1982. 592 p.
  8. Araslankin S.V., Kostryukov S.G., Tomolin O.B. Accelerated method for the determining of the diffusion steam-permeability coefficient of plastering materials based on inorganic binders. Vestnik of Perm University. Series “Chemistry”. 2017. Vol. 7. No. 1 (52), pp. 83–93. (In Russian).

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2. Scheme of the setup for accelerated determination of vapor permeability and vapor permeability resistance of plaster and putty materials: 1 – desiccator GOST 25336; 2 – test material; 3 – metal ring with rubber gasket; 4 – acetone; 5 – sealing paste; 6 – template

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