PREDICTION OF DEGRADATION CAUSED BY FROST DAMAGE FOR CONCRETE

Abstract

As the results of investigating the RC irrigation canals in Hokkaido, It is clear that air content and spacing factor of concrete affect an actualization of frost damage at 40 years after the construction. It is based on this tendency, a model to evaluate the influence of air content and spacing factor of concrete to time dependent behavior of relative dynamic modules of elasticity is developed. By using this model, it is possible to suggest air content and spacing factor of concrete demanded as opposed to service time and performance based design of RC structures.