2D Model of Capillary Transport of Water in Aerated Concrete
Aerated concrete from the viewpoint of the transport of liquid moisture appears to be a material with highly variable properties strongly dependent on the porosity and liquid water exposure conditions. Saturation degree of aerated concrete strongly affects not only all its thermal-technical properties, but regarding to the risk freezing, also the strength properties. To predict the degree of saturation and moisture distribution, we used certain mathematical and physical methods supplemented with experimentally identified parameters. The aim of this paper is to discuss existing approaches to model capillary moisture transport in aerated concrete and description of the new, simplified 2D computer mathematical-physical model for the solution of this phenomenon. The results of the model are compared with experiments carried out. The conclusion discusses the limits of this new model, and mentions further possibilities for its improvement.
Miloš Kalousek, Martin Němeček and Lukáš Chuchma
O. Sikula and M. Mohapl, "2D Model of Capillary Transport of Water in Aerated Concrete", Advanced Materials Research, Vol. 649, pp. 287-290, 2013