Influence of Environmental Humidity on Concrete Creep

It is generally accepted that environment humidity as one of the environmental affects concrete creep considerably. The environmental humidity cycling, drying and high level humidity on concrete structures have significant effects on concrete creep. This paper studied the distribution of humidity field within concrete at both constant humidity condition and variable humidity condition using finite element method. It can be shown from the comparison that the finite element method has satisfied accuracy on simulation of interior humidity field of concrete. Coupled with the changing of humidity field within concrete and improved microprestress solidification theory, creep of concrete at constant environment humidity and different humidity levels was studied.