Abstract
A macroscopic constitutive law specified in the centimeter scale of a referential control volume was proposed by coupling with nano-micro pore structures and thermodynamic status of water in the fine spaces. A solidification theory, in which finite fictitious clusters are formed with the hydration progress, was applied to represent both aging and hardened concrete Pore water in a cementitious material was classified into several components condensed water in capillary pores, gel water, adsorbed water, and interlayer water. In the model, each of these components is assumed to play a different role in macroscopic mechanical behaviors according to their intrinsic thermodynamic natures. The proposed model was verified with experimental data under arbitrary couplings of ambient temperature, relative humidity, and sustained external load
