[1103] DEGRADATION RESISTANCE OF CEMENT MORTAR SUBMERGED IN VARIOUS OILS
キーワード：concrete durability, expansive collapse of cement mortar, fatty acid, oil
The aim of this study is to evaluate and analyze the degradation resistance of cement mortar under the conditions of submerged in various oils. Although former research reported oil can damage the cement-based materials, it was not sufficiently known regarding detail mechanisms and different degree of damages depending on various oil types. In this research, to evaluate the influence of various oil types on degradation and degradation resistance of cement mortar, various types of oils were used available in general market. According to the experiment, depending on oil types, the degree of degradation was vary, especially, biodiesel was found as the most harmful for cement mortar in this research conditions.