• Title/Summary/Keyword: 부착 강도

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Bond Strength of Light-weight Inorganic Ceramic Board for Fire Resistant Curtain-wall System (커튼월 층간 화재확산방지구조 적용을 위한 경량무기발포 세라믹보드의 부착강도)

  • Shin, Hyeon-Uk;Song, Hun;Chu, Yong-Sik;Lee, Jong-Kyu
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2014.05a
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    • pp.214-215
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    • 2014
  • Technologies on energy saving and materials used in curtain walls have progressed with increase of high-rise and large buildings. This study is explain fire resistance performance of the curtain walls. And focused on bond strength of light-weight inorganic ceramic board in high temperature for fire resistant curtain-wall system. From the result, curtain-wall system high fire resistant using the light-weight inorganic ceramic board.

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Evaluation of the Adhesion Strength of Metal Spray Coating System in Steel using High-frequency Arc Metal Spray Method (고주파 아크 금속용사기를 이용한 금속용사 코팅계의 부착강도 평가)

  • Choe, Hong-Bok;Lee, Han-Seung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2014.05a
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    • pp.96-97
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    • 2014
  • The purpose of this study is to analyze the adhesion strength of metal spray coating system in steel using high-frequency arc metal spray method. For the purpose the experimental factor such as surface roughness was selected at 3 levels. As a result of experiment, it appeared that high-frequency arc metal spray method had higher adhesion strength than existing metal spray method. Especially, Al-Mg showed the highest adhesion strength than other metals. In case of surface roughness, the higher roughness steel has, the higher adhesion strength appeared.

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A Study on the Test Methods of Bond Strength in Waterproofing and Anti-corrosion Materials by Reversed Pressure (역수압 작용을 고려한 방수·방식재의 부착강도 시험방법에 관한 연구)

  • Kim, Meong-Ji;Choi, Su-Young;Choi, Sung-Min;Oh, Sung-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2014.05a
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    • pp.232-233
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    • 2014
  • Recently, water treatment facility is usually eastablished in underground, and waterproofing and anti-corrosion materials for concrete structures applied water treatment tank is developing in various ways. However, as the limit of research focused on durability improvement of top coating material, it is insufficient to study on the adhesion strength between the concrete surface and primer. Therefore, there is to confirm the adhesion of between concrete surface and the three primers used as anti-corrosion waterproofing materials, and to investigate the properties of adhesion strength according to the condition such as wet codition and water pressure condition of the concrete surface in this study.

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Bond Strength and Durability of Spray Mortar Purposed for Repair (유지보수용 스프레이 모르타르의 부착강도 및 내구성)

  • Yun, Kyong-Ku;Kim, Seong-Kwon;Lee, Wan-Sung
    • Journal of Industrial Technology
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    • v.33 no.A
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    • pp.101-107
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    • 2013
  • The purpose of this study was to investigate bond strength between substrate and HES-LMS mortar, durability of HES-LMS mortar with latex content(0%, 5%, 10%). To measure the bond strength, the direct tensile test based on uniaxial tensile test was used, which was proposed by Kuhlman(1990). Also, Resistance for water permeability, water absorption and image analysis for air void system were conducted to estimating durability of HES-LMS mortar.

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An Experimental Study on the Bond Strength of the Metal Sprayed Coating According to the Shape and Size of the Attachment (어태치먼트의 형상 및 크기가 금속용사 방식피막의 부착강도에 미치는 영향에 관한 실험적 연구)

  • Park, Seungi-Gi;Park, Jin-Ho;Ryu, Hua-Sung;Lee, Han-Seung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2016.05a
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    • pp.109-110
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    • 2016
  • The recent introduction of Metal spraying method apply to construction and civil steel structure is increasing. In applying the metal spraying lining process of construction and civil steel structure to secure the adhesion strength between the metal thermal spray coating and the steel structure and the highest priority requirements are required bond strength test reliable measurement accordingly. In this study, by calculating the deposition intensity and the standard deviation, coefficient of variation corresponding to the bonding area, unlike the shape of the attachment we compared the results.

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Tensile Bond Strength Westing When Changing Adhesion Method of Double-sided Waterproof Sheet Used on Surface Layer of Bridge-deck (교면용 양면 시트방수재 상부 포장층 재료에 따른 부착방법 변경시 인장접착강도 확인)

  • An, Ki-Won;Kim, Chun-Hag;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.05a
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    • pp.217-218
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    • 2019
  • In this study, to overcome the limitation of material application as the surface layer of bridge decks (asphalt concrete, concrete), a newly developed waterproof sheet is proposed to be usable for both asphalt concrete and concrete. Subsequent tensile bond strength was tested, and the test results showed that the tensile bond strengths were similar to depending on the type of the surface layer material for bridge decks, confirming the applicability of the proposed material.

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A Study on Early-Age bond strength of Magnesium Potassium Phosphate Mortar (마그네슘 인산칼륨 모르타르의 초기재령 부착성능에 관한 연구)

  • Kang, Hye-Ju;Lee, Yeong-Won;Kim, Jea-Hwan;Kang, Suk-Pyo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.05a
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    • pp.98-99
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    • 2015
  • In the study, based on analysing bond strength of MPC and existing rapid harding grout according to shape of cross section, early ages shape of cross section is investigated about effect on bond strength to use MPC as an emergency repair material for road defects such as the form of a pot-hole. The result, MPC is about 10% higher than the shear bond strength rapid harding grout, about 20% higher bending bond strength.

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Other Changes in Bond Strength due to External Insulation Method (외단열 고정 방법에 따른 부착강도 변화)

  • Kim, Tae-Jun;Park, Wan-Goo;Park, Jin-Sang;Oh, Jung-Hwan;Bae, Ki-Sun;Oh, Sang Geun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.11a
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    • pp.132-133
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    • 2013
  • External Insulation Method is to place the insulation on the outside of concrete. External Insulation Method is better than Internal Insulation Method to the protection of structure. However, The phenomenon that External Insulation falling from the structure occurs frequently. Apply method of External Insulation is divided Wet Construction, Dry Construction and Wet & Dry Construction. The purpose of this study is to test Bonding Strength of External Insuation. Furthermore, on the basis of this study, External Insulation Method determines the effective development will be made.

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Bond Strength between Steel and Concrete with Different Diameters in the Same Corrosion Rate (직경별 부식 철근과 콘크리트 간의 부착강도에 관한 연구)

  • Du, Rujun;Jang, Indong;Lee, HyeRin;Yi, Chongku
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2020.11a
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    • pp.190-191
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    • 2020
  • The bonding of steel bar to concrete is closely related to the roughness and corrosion degree of steel bar surface. The accelerated corrosion of concrete specimens with different reinforcement diameters was carried out in this test. Through the pullout test of the corroded concrete specimens, the relationship between the bond stress and the displacement of the corroded concrete specimens under the corresponding corrosion degree was obtained. The bond stress of reinforced concrete with different size and corrosion degree are compared and analyzed to find out the influence of corrosion on the bonding property of reinforced concrete.

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Bond Strength Measurement according to the Cement Liquid Waterproofing Method (시멘트 액체방수 시공방법에 따른 부착강도 특성)

  • Lee, Ji-Hwan;;Kim, Jin-Sik;Kim, Hye-Won;Cho, Seong-Jun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.05a
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    • pp.241-242
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    • 2023
  • In this study, the bond strength characteristics of cement liquid waterproofing are confirmed. Investigation was made on the properties of adhesion strength due to cement liquid waterproof construction methods and changes in curing temperature. It is intended to reduce the possibility of tiles falling off by ensuring the adhesion strength of the cement liquid waterproofing.

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