| The chloride penetration resistance of concrete containing supplementary cementitious materials (SCMs) was investigated by conducting laboratory experiments and field tests. Twelve types of concrete specimens were fabricated with and without SCMs, such as ground granulated blast-furnace slag and fly ash, and subsequently used for immersion, non-steady-state migration, and outdoor exposure tests. The test results of the immersion and non-steady-state migration tests indicate that the use of SCMs contributes to the improvement in the chloride penetration resistance of concrete. In contrast, the results obtained from the outdoor exposure test indicate that the chloride penetration resistance of concrete is influenced by not only the use of SCMs, but also the progress of carbonation at the concrete surface. The concrete specimens containing high-volume SCMs showed large chloride penetration depths due to the progress of carbonation at the concrete surface. |
