This paper describes the chloride penetration resistance properties of concrete containing min- eral admixtures including fly ash, ground granulated blast-furnace slag powder, silica fume, and meta-kaolin. An electrically accelerated chloride migration test and immersion test were performed for 91days and…
This paper describes the chloride penetration resistance properties of concrete containing min- eral admixtures including fly ash, ground granulated blast-furnace slag powder, silica fume, and meta-kaolin. An electrically accelerated chloride migration test and immersion test were performed for 91days and 330days, respectively. Total charge passed and chloride migration coefficient were derived from the acceler- ated chloride migration test, and chloride penetration depth, water and acid soluble chloride content, and ap- parent chloride diffusion coefficient were measured from the immersion test. The initial current has a linear relationship with the total charge passed, and it was found that the binding capacity increased as the distance from the concrete surface exposed to chloride solution increased. The effect of types of mineral admixture and their replacement ratios on enhancing the concrete’s resistance against chloride ion penetration could be clarified through the electrically accelerated chloride migration test and immersion test. ing a reinforced concrete structure that is meant to last for a long time in a chloride environment.