Moisture content influence on thermal conductivity of concrete
Uticaj sadržaja vlage na koeficijent toplotne provodnosti betona

2016
Authors
Aškrabić, MarinaJosipović, Jovana
Petojević, Zorana

Mirković, Milica
Brajović, Ljiljana

Gospavić, Radovan

Radovanović, Slobodan

Todorović, Goran

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In this paper, physical processes of adsorption and transport of humidity, which has dominant influence on the physical and thermal characteristics of concrete, has been described. The impact of structure of concrete especially pores dimensions and distribution has been explained. The drastic increase in the coefficient of thermal conductivity λ of concrete at increasing relative humidity has been analyzed. An analytic formula for λ, as a function of the concrete density and moisture content in exploitation conditions, starting from light autoclaved aerated to heavy concrete, has been given. The formula is based on experimental values for λ available in the literature. It has been confirmed that the thermal conductivity of all concretes are directly related to density and inversely to porosity and pores diameters.
Source:
Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016, 2016, 32, 415-424Publisher:
- Građevinski fakultet Subotica, Subotica
Note:
- Zbornik radova Građevinskog fakulteta
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GraFarTY - CONF AU - Aškrabić, Marina AU - Josipović, Jovana AU - Petojević, Zorana AU - Mirković, Milica AU - Brajović, Ljiljana AU - Gospavić, Radovan AU - Radovanović, Slobodan AU - Todorović, Goran PY - 2016 UR - https://grafar.grf.bg.ac.rs/handle/123456789/1389 AB - In this paper, physical processes of adsorption and transport of humidity, which has dominant influence on the physical and thermal characteristics of concrete, has been described. The impact of structure of concrete especially pores dimensions and distribution has been explained. The drastic increase in the coefficient of thermal conductivity λ of concrete at increasing relative humidity has been analyzed. An analytic formula for λ, as a function of the concrete density and moisture content in exploitation conditions, starting from light autoclaved aerated to heavy concrete, has been given. The formula is based on experimental values for λ available in the literature. It has been confirmed that the thermal conductivity of all concretes are directly related to density and inversely to porosity and pores diameters. PB - Građevinski fakultet Subotica, Subotica C3 - Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016 T1 - Moisture content influence on thermal conductivity of concrete T1 - Uticaj sadržaja vlage na koeficijent toplotne provodnosti betona EP - 424 SP - 415 VL - 32 DO - 10.14415/konferencijaGFS2016.042 ER -
@conference{ author = "Aškrabić, Marina and Josipović, Jovana and Petojević, Zorana and Mirković, Milica and Brajović, Ljiljana and Gospavić, Radovan and Radovanović, Slobodan and Todorović, Goran", year = "2016", abstract = "In this paper, physical processes of adsorption and transport of humidity, which has dominant influence on the physical and thermal characteristics of concrete, has been described. The impact of structure of concrete especially pores dimensions and distribution has been explained. The drastic increase in the coefficient of thermal conductivity λ of concrete at increasing relative humidity has been analyzed. An analytic formula for λ, as a function of the concrete density and moisture content in exploitation conditions, starting from light autoclaved aerated to heavy concrete, has been given. The formula is based on experimental values for λ available in the literature. It has been confirmed that the thermal conductivity of all concretes are directly related to density and inversely to porosity and pores diameters.", publisher = "Građevinski fakultet Subotica, Subotica", journal = "Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016", title = "Moisture content influence on thermal conductivity of concrete, Uticaj sadržaja vlage na koeficijent toplotne provodnosti betona", pages = "424-415", volume = "32", doi = "10.14415/konferencijaGFS2016.042" }
Aškrabić, M., Josipović, J., Petojević, Z., Mirković, M., Brajović, L., Gospavić, R., Radovanović, S.,& Todorović, G.. (2016). Moisture content influence on thermal conductivity of concrete. in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016 Građevinski fakultet Subotica, Subotica., 32, 415-424. https://doi.org/10.14415/konferencijaGFS2016.042
Aškrabić M, Josipović J, Petojević Z, Mirković M, Brajović L, Gospavić R, Radovanović S, Todorović G. Moisture content influence on thermal conductivity of concrete. in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016. 2016;32:415-424. doi:10.14415/konferencijaGFS2016.042 .
Aškrabić, Marina, Josipović, Jovana, Petojević, Zorana, Mirković, Milica, Brajović, Ljiljana, Gospavić, Radovan, Radovanović, Slobodan, Todorović, Goran, "Moisture content influence on thermal conductivity of concrete" in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016, 32 (2016):415-424, https://doi.org/10.14415/konferencijaGFS2016.042 . .