AbstractAbout AuthorsReferences
The method for experimental determination of the equilibrium humidity of building materials has been developed. Room air is bubbled through the water layer and humidifies it up to the relative humidity of about 95%. By cooling the obtained air, its relative humidity is brought up to 100%. Than the air is heated to the temperature at which it is necessary to determine the equilibrium humidity of the material. Thus prepared air, having a predetermined temperature and relative humidity, is continuously pumped through the material sample till reaching its equilibrium humidity. It is experimentally shown that this method makes it possible to determine the equilibrium humidity of light and cellular concretes during 6–8 hours, that is 300–400 times faster than by the desiccator method, in the temperature range of 10–30°C and the air relative humidity of 40–97%, with a relative error not exceeding ±10%
I.Ya. KISELEV, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
Research Institute of Building Physics of RAACS (21, Lokomotivny Passage, 127238, Moscow, Russian Federation)
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7. Patent USA № 3.555.912. Incremental method for surface area and pore size determination. Lowell S.B. Declared 19.01.1991.
2. Pastushkov P.P., Pavlenko N.V., Korkina E.V. Using the calculated determination of the operational humidity of thermal insulation materials. Stroitel’stvo i rekonstruktsiya. 2015. No. 4, pp. 168–172. (In Russian).
3. Umnyakova N.P., Butovsky I.N., Chebotarev A.G. Development of the Regulation Methods of Heat Shield of Energy Efficient Buildings. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2014. No 7, pp. 19-21. (In Russian).
4. Gagarin V.G., Pastushkov P.P., Reutova N.A. On the question of the appointment of the estimated moisture content of building materials for sorption isotherm. Stroitel’stvo i rekonstruktsiya. 2015. No. 4, pp. 152–155. (In Russian).
5. Umnyakova N.P., Butovsky I.N., Chebotarev A.G., Matveeva O.I. Improvement of Thermotechnical Design of Buildings Under Climatic Conditions of the Sakha Republic (Yakutia). Zhilishchnoe Stroitel’stvo [Housing Construction]. 2015. No 7, pp. 12–17. (In Russian).
6. Gagarin V.G., Pastushkov P.P. Determination of the estimated moisture content of building materials. Promyshlennoe i grazhdanskoe stroitel’stvo. 2015. No. 8, pp. 28–33. (In Russian).
7. Patent USA № 3.555.912. Incremental method for surface area and pore size determination. Lowell S.B. Declared 19.01.1991.
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