材齢の異なる硬化セメントペースト間の水分移動解析

抄録

Water vapor relative pressure difference in construction joints of hardened cement pastes with different ages and mix proportions were evaluated analytically based on chemical potential concept. Chemical potential was formulated by a system of the cement-water lattice model, developed on the statistical thermodynamics and a general idea of mixing. A system of solution enables prediction of the relative water vapor pressure under various conditions of engineering parameter. Numerical results showed a possibility of reversal moisture transfer between jointed cement pastes depending on their respective ages and mix proportions.