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, 415-424
TY - 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 . .
