Determination of the Nature of Humidification of Enclosing Structures by Experimental Method of Color Indication

Number of journal: 6-2019
Autors:

Petrov A.S.
Yuzmuhametov A.M.
Kupriyanov V.N.
Andreitseva K.S.

DOI: https://doi.org/10.31659/0585-430X-2019-771-6-24-28
УДК: 692.232

 

AbstractAbout AuthorsReferences
Thermo-physical qualities and durability of enclosing structures are interrelated with their temperature and humidity conditions of operation and humidity of the materials used. In particular, the coefficients of thermal conductivity (λ) and vapor permeability (µ) used in the current standards of the stationary and non-stationary methods for assessing the humidity state of structures will depend on the values of the calculated operational humidity of materials. The only reliable way to determine the operational humidity of the material layers of structures now – field studies. Analysis of the main standards regulating the testing of material layers on the moisture condition (GOST R 54853–2011, GOST 21718–84, GOST 23422–87, etc.) made it possible to identify common faults. The main disadvantage is the exceptional locality of measurement, which does not allow to get the picture of humidity distribution in the structure directly in the experiment. In this regard, an experimental method for determining the nature of humidification of enclosing structures by color indication is proposed. The proposed method based on the color indicator is not actually limited in area and changes its color depending on the moisture content. The results of an experimental study of the moisture state of the enclosing structure fragment tested under the laboratory conditions of the climatic chamber are presented.
A.S. PETROV1, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.M. YUZMUHAMETOV1, Engineer-Architect (This email address is being protected from spambots. You need JavaScript enabled to view it.)
V.N. KUPRIYANOV1, Doctor of Sciences (Engineering), Corresponding Member of RAACS (This email address is being protected from spambots. You need JavaScript enabled to view it.)
K.S. ANDREITSEVA2, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

1 Kazan State University of Architecture and Engineering (1, Zelenaya Street, Kazan, Republic of Tatarstan, 420043, Russian Federation)
2 Research Institute of Building Physics of RAACS (21, Lokomotivny Driveway, Moscow, 127238, Russian Federation)

1. Kupriyanov V.N., Yuzmukhametov A. M., Safin I.Sh. The effect of moisture on the thermal conductivity of wall materials. State of the issue. Izvestiya KGASU. 2017. No. 1 (39), pp. 102–110. (In Russian).
2. Vasil’ev B.F. Naturnye issledovaniya temperaturno-vlazhnostnogo rezhima krupnopanel’nykh zhilykh zdanii [Field studies of the temperature and humidity of large-panel residential buildings]. Moscow: Stroiizdat. 1968. 120 p.
3. Vasil’ev B.F. Naturnye issledovaniya temperaturno-vlazhnostnogo rezhima zhilykh zdanii [Field studies of the temperature and humidity of residential buildings] Moscow: Gosstroiizdat. 1957. 214 p.
4. Gagarin V.G., Pastushkov P.P., Reutova N.A. To the question of the appointment of the calculated moisture content of building materials on the sorption isotherm. Stroitel’stvo i rekonstruktsiya. 2015. No. 4 (60), pp. 152–154. (In Russian).
5. Korniyenko S.V., Vatin N.I., Gorshkov A.S. Thermophysical field testing of residential buildings made of autoclaved aerated concrete blocks. Magazine of Civil Engineering. 2016. No. 4, pp. 10–25.
6. Protasevich A.M., Leshkevich V.V. Moisture conditions of building external walls under conditions of the Republic of Belarus. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2013. No. 9, pp. 37–40. (In Russian).
7. Grinfel’d G.I., Morozov S.A., Sogomonyan I.A., Zyryanov P.S. Humid condition of modern structures made of autoclaved aerated concrete under operating conditions. Inzhenerno-stroitel’nyi zhurnal. 2011. No. 2 (20), pp. 33–38.
8. Kornienko S.V. Improvement of the Russian standards for moisture protection of enclosing structures. Vestnik Volgogradskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta. Seriya: Stroitel’stvo i arkhitektura. 2017. Vol. 47 (66), pp. 18–29. (In Russian).
9. Litavcova E., Korjenic A., Korjenic S., Pavlus M., Sarhadov I., Seman J., Bednar T. Diffusion of moisture into building materials: A model for moisture transport. Energy and Buildings. 2014. Vol. 68, pp. 558–561.
10. Declared Patent No. 2018108772 Sposob opredeleniya fakta kondensatsii vodyanogo para i raspolozheniya ploskosti maksimal’nogo uvlazhneniya v stroitel’nykh ograzhdayushchikh konstruktsiyakh posredstvom tsvetovoi indikatsii i izdelie-indikator dlya ego osushchestvleniya [The method of determining the fact of condensation of water vapor and the location of the plane of maximum moistening in building fencing structures by means of color indication and an indicator product for its implementation]. Petrov A.S., Kupriyanov V.N.; Declared. 12.03.2018. (In Russian).

For citation: Petrov A.S., Yuzmuhametov A.M., Kupriyanov V.N., Andreitseva K.S. Determination of the nature of humidification of enclosing structures by experimental method of color indication. Stroitel’nye Materialy [Construction Materials]. 2019. No. 6, pp. 24–28. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2019-771-6-24-28