One of the main parameters influencing hygro-thermal performance of buildings is moisture in construction materials. The factor that is often used to characterize hygric properties of the materials is water absorption coefficient which allows to describe material capillary behavior as a function of time together with the surface area of specimen. In standard, the value of water absorption coefficient is determined by gravimetric method evaluation according to EN 1925:1999 standard. This article is an approach to indirect evaluation of water absorption coefficient of aerated concrete sample using the non-invasive Time Domain Reflectometry sensor. In parallel to the reflectometric readouts, gravimetric measurement were conducted to evaluate material moisture behavior using the traditional methods. Data obtained using the non-invasive sensor show correlation with standard method of moisture absorptivity coefficient determination.
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28 September 2020
CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2020 (CEST 2020)
2–4 September 2020
Eger, Hungary
Research Article|
September 28 2020
Possibility to use surface TDR sensors to estimate water absorption coefficient of porous materials
Zbigniew Suchorab;
Zbigniew Suchorab
a)
1
Lublin University of Technology, Faculty of Environmental Engineering
, Nadbystrzycka 40B, 20-618 Lublin, Poland
2
Czech Technical University in Prague, Faculty of Civil Engineering
, Thákurova 7, 166 29 Praha 6, Czech Republic
a)Corresponding author: [email protected]
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Lukáš Fiala;
Lukáš Fiala
b)
2
Czech Technical University in Prague, Faculty of Civil Engineering
, Thákurova 7, 166 29 Praha 6, Czech Republic
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Grzegorz Łagód;
Grzegorz Łagód
c)
1
Lublin University of Technology, Faculty of Environmental Engineering
, Nadbystrzycka 40B, 20-618 Lublin, Poland
2
Czech Technical University in Prague, Faculty of Civil Engineering
, Thákurova 7, 166 29 Praha 6, Czech Republic
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Václav Kočí;
Václav Kočí
d)
2
Czech Technical University in Prague, Faculty of Civil Engineering
, Thákurova 7, 166 29 Praha 6, Czech Republic
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Robert Černý
Robert Černý
e)
2
Czech Technical University in Prague, Faculty of Civil Engineering
, Thákurova 7, 166 29 Praha 6, Czech Republic
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a)Corresponding author: [email protected]
AIP Conf. Proc. 2275, 020028 (2020)
Citation
Zbigniew Suchorab, Lukáš Fiala, Grzegorz Łagód, Václav Kočí, Robert Černý; Possibility to use surface TDR sensors to estimate water absorption coefficient of porous materials. AIP Conf. Proc. 28 September 2020; 2275 (1): 020028. https://doi.org/10.1063/5.0026390
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