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Evaluation on the Performance of Surface Performance Improving Agent for the Deterioration Prevention of Concrete Structures  

Ryu, Gum-Sung (한국건설기술연구원 구조연구부)
Koh, Kyoung-Taek (한국건설기술연구원 구조연구부)
Kim, Do-Gyeum (한국건설기술연구원, (주)콘테크)
Lee, Jang-Hwa (한국건설기술연구원)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.9, no.4, 2005 , pp. 177-186 More about this Journal
Abstract
The latest concrete structure has showed that the deterioration of durability has been increased by the damage from salt, carbonization, freezing & thawing and the others. Therefore, the measures for the concrete which has deteriorated durability have been taken. Among them, it has been often used that surface treatment which cuts off the deterioration factors of durability by protecting the surface of concrete. However, troubles such as fracture and rupture in the repair layer have been reported as time goes by due to the difference between the organic repair material like epoxy and concrete properties. Researchers have been developing the repair material which can cut off the deterioration factors of durability such as $CO_2$ gas, chloride ion and water by making the formation of concrete elaborate through the reaction with calcium ion when the surface improving agent is coated on the concrete. The main ingredient of that is inorganic substance which is the same as the concrete property. This study was evaluated the surface improving agent for permeability, watertightness, air-permeability, chemical resistance and elution resistance. As a result, it has been reported that the surface improving agent improves watertightness and air-permeability by penetration more than 10mm within concrete. Therefore, it is concluded that the surface improving agent developed in this research prevents deterioration of concrete durability when it is coated on the concrete structure.
Keywords
Deterioration; Repair; Waterproofing; Surface Performance Improving Agent;
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