Properties of Concrete with Expansive Additive Exposed to Marine Environment

Abstract

A three-year exposure test was conducted in a simulated marine environment and in a simulated splash zone to evaluate the performance of concrete with expansive additive in a marine environment. The test parameters were the presence/absence of expansive additive, the grade of the restraining bar ratio, and the water-cement ratio, and the results were compared and verified in terms of physical properties and microscopic observation. As a result, it was confirmed that the performance of the concrete with expansive additive in a marine environment was almost the same as that of concrete without expansive additive. However, it was found that the effect of the restraining bar was remarkable in the evaluation, and appropriate evaluation taking into consideration the actual structure was necessary.