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A Compound Deterioration Assessment of Concrete Subjected In Freezing-Thawing and Chloride Attack
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 Title & Authors
A Compound Deterioration Assessment of Concrete Subjected In Freezing-Thawing and Chloride Attack
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 Abstract
In clod weather regions, a strong seasonal wind brings sea salts to the land. In addition to it, recently, the spreading amount of deicing salts has increased numerously for purpose of removing snow and ice. Thus the salts environment around concrete structures becomes so severe that various damages of concrete due to applied salts will be brought up. Much of countries such as America, Europe etc. is carried out study for effects of deicing salts on concrete. However, there are not test methods for deterioration of concrete subjected to both freezing-thawing and chloride in Korea. In this study, we carried out test for the compound deterioration subjected to both freezing-thawing and chloride attack, to investigate the effects of sodium chloride on the deterioration of concrete. The test was performed to investigate the effects of cement type, strength and air content on the scaling deterioration of concrete. As a result, the scaling deterioration was accelerated in the presence of salts. And the resistance to scaling was strongly influenced by the type of cement, the strength and air content of concrete.
 Keywords
freezing-thawing;chloride attack;compound deterioratin;scaling deterioration;deicing salt;
 Language
Korean
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