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상온 저압의 스테틱 아지테이션 혼합방식으로 다공성 방수층을 형성하는 옥상 노출형 도막방수공법
유재형(Yuh, Jae Hyung),조일규(Cho, Il Kyu) 대한건축학회 2018 대한건축학회 학술발표대회 논문집 Vol.38 No.1
This technology secures product quality and durability by using polyurea resin to simplify the process and to develop a combination method of stereoscopic resistance at room temperature. Various layers of air cell structure are formed inside the waterproof layer using a static agitiation mixing method and an air-groomed grill to create the problem of water vapor from the concrete without the need of a separate waterproof technique. In addition, it is a coating waterproof technique that improves the problem of spraying by ensuring construction propensity and quality through mechanical spray construction, and by installing a separation port for air curtain around nozzles.
급결마이크로시멘트 및 글리시딜아크릴레이트를 복합 적용한 누수현장 보수사례
조일규 ( Cho Il-kyu ),유재형 ( Yuh Jae Hyung ),오상근 ( Oh Sang-keun ) 한국건축시공학회 2019 한국건축시공학회 학술발표대회 논문집 Vol.19 No.2
This technology is a water leak repair technology using composite materials of concrete structures that block leakage of structures by injecting rapid microcement into the face of underground concrete to block water and injecting flexible glycidylacrylate. Rapid micro cement system repair materials are mixed with fine fibers to improve the flexural sensitivity of the material and to form a layer that blocks stabilized water at the back of the structure by allowing rapid and tight spatial filling during injection with high cohesion The glycidylacrylate repair material can control the expansion rate, and the external stress also has the characteristic that the form of the material is not destroyed or separated, which can also be applied to vibrating induced structures that produce repetitive fatigue loads, and has an effective durability in saline, alkali, acid (chloric acid, sulfuric acid, nitric acid).
조일규 ( Cho Il-kyu ),유재형 ( Yuh Jae Hyung ),오상근 ( Oh Sang-keun ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.2
In this study, various materials such as epoxy material, urethane material, cement material, and acrylic material are used to solve the water leakage occurring in underground structures. However, in the reality that the durability is insufficient and the effect is insufficient, it is aimed to improve the repairing effect by using acrylics. As a second study, it is confirmed that leachate can be used as a repair material by considering long time under water stability, elongation range test, fatigue resistance test, tube stability test, damage recovery performance ana temperature stability considering leakage environment for polyacrylate. In addition, this material is applied to Expansion Joint to perform leakage repair, and to verify the effect of repairing leakage by monitoring and visual observation of concrete humidification.
급결 마이크로 시멘트의 성능평가를 통한 차수층 활용성에 관한 연구
조일규 ( Cho Il-kyu ),유재형 ( Yuh Jae Hyung ),오상근 ( Oh Sang-keun ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.1
In this study, various materials such as epoxy material, urethane material, cement material, and acrylic material are used to solve the water leakage occurring in underground structures. However, in the reality that the durability is insufficient and the effect is insufficient, it is aimed to improve the repairing effect by using cement and acrylics n combination. As a first study, we tried to verify the performance of rapid micro cement and cement paste and to improve the performance by checking the product properties. Three types of micro cement are evaluated. Three types of micro cement are used: fiber inclusion, fiber unfolding, and cement paste. When the material is selected for micro cement, it is applied to the field to understand the maintenance effect and durability.