A
phenomenological model describing synergic interaction of aggressive pollutants
and stress field in concrete
is proposed. Material
deterioration resulting from
chemical reactions reduces bearing capacity of concrete skeleton, causes stress
level increase and, in consequence, acceleration of material damage. The
concentration gradient and the stress tensor were considered as main driving
forces of transport
processes in multicomponent body. According to the
viewpoint of the continual damage mechanics, the gradual concrete deterioration
were described by scalar damage parameter. The micro cracks of concrete allow
the corrosion processes affect the reinforcement also. The interactions on the
structural level were numerically simulated on a RC cross-section. It was
demonstrated that chemomechanical damage reduces its limit load and stiffness.