MODELING OF PORE WATER CONTENT IN CONCRETE UNDER GENERIC DRYING WETTING CONDITIONS

Abstract

In this paper, the authors propose an analytical model for the hysteresis behavior of moisture isotherms in concrete. The microstructure of concrete is approximated in terms of a porosity distribution to which the proposed analytical model is applied to predict concrete water content under variable environmental conditions. The proposed model is formed based upon the physical phenomenon observed in porous media called as the inkbottle effect. The model IS able to predict the water content in concrete under general drying-wetting conditions satisfactorily.