• Title/Summary/Keyword: 표면보호재

Search Result 15, Processing Time 0.026 seconds

Evaluation of Ceramics, Alumina and Silicone Carbide Added Concrete Surface Protecting Agent (세라믹스, 알루미나 및 실리콘 카바이드 혼합물이 첨가된 콘크리트 표면보호재의 성능 평가)

  • Kong, Jin-Hee;Kim, Young-Geun;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2009.11a
    • /
    • pp.43-46
    • /
    • 2009
  • The purpose of this study is to enhance durability of concrete structures that uses this surface protecting material by carrying out the performance test of the surface protecting material of concrete, and as s result, we reached out the conclusion as follow. 1. As a result of the test measuring the stability and adhesive power of conductive film against ultraviolet, freezing & thawing, and damage from seawater that deteriorate the surface protecting material, it was turned out to meet the performance criteria specifying in the KS standard enough to gain a good evaluation to use as a surface protecting material. 2. As a result of the test identifying the neutralization-furtherance, it was assessed to be capable of protecting effectively concrete structures from carbonic acid gas by a very low depth of 0.1mm of neutralization. 3. As a result of the test identifying Penetrated Resistance Properties of chloride ion, as it was turned out to have a very low value of 819 Coulombs, it was assessed that even in the environment where the corrosion by chloride such sea environment is very affective, the film can effectively protect the concrete structure. 4. As a result of the test identifying freezing & thawing, as there was no change in reduction of mass after 400 cycle, it was assessed that the film has a good resistance against freezing & thawing. According to the results of study above, it is expected that this technology can extend its durability of concrete structure and be widely used for concrete structure through means (methods) to prevent the neutralization and damage from seawater as original purposes of the surface protecting material.

  • PDF

An experimental study on the Bonding Strength and Strain of Coating Material according to Temperature Condition (온도조건에 따른 표면보호재의 부착강도 특성 및 변형 특성에 관한 실험적 연구)

  • Bae, Jun-Young;Kwan, In-Pyo;Kim, Kyung-Deok;Kang, Suk-Pyo;Kawk, Ju-Ho;Kim, Jung-Hwan
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 2006.05b
    • /
    • pp.293-296
    • /
    • 2006
  • Normally, using coating material could result in different performance according to the various changes of environments or operation conditions. For these reasons, there are decreasing tendency for the durability, beauty and scenery of structures as the separation or exfoliation occurred after operation. Especially we must find out not only bond strength characteristics of coating material under temperature conditions but also bond strength reduction under heating-cooling repeat test because Korea has four distinct seasons. In this paper, the deformation and bond strength characteristics of coating material have been investigated. and we suggest some preliminary data of coating material for its best performance under various temperature condition.

  • PDF

An Experimental Study on the Properties of Surface Protection Materials to Durability of Concrete (콘크리트 내구성 향상을 위한 표면보호재의 특성에 관한 실험적 연구)

  • Lee, Jeoung-Yun;Cho, Byoung-Young;Kim, Young-Geun;Oh, Sang-Keun
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 2006.05b
    • /
    • pp.173-176
    • /
    • 2006
  • Concrete has been considered as a semi-permanent structural material, because its excellent durability. But concrete durability is affected by carbon dioxide, chloride, water, etc. This study is about surface protection materials-one materials is silane type and the other silicate type for the promoting of concrete durability. As a results, Silane type could protect affection of chloride(Cl-), water(H2O), carbon dioxide(CO2). Also silicate type could improve the abrasion of concrete.

  • PDF

Chemical Resistance Characteristics of Concrete Surface Coating Agent with Flexibility (유연성을 갖는 콘크리트 표면보호재의 내화학적 특성)

  • Han, Sang-Hoon;Yoon, Ju-Yong;Lee, Byung-Ro;Hong, Ki-Nam
    • Journal of the Korean Society of Safety
    • /
    • v.27 no.3
    • /
    • pp.96-103
    • /
    • 2012
  • The purpose of this study is evaluate the ability of coating materials developed in order to prevent the durability deterioration of the concrete structure. Neutralization test, freezing and thawing test, and sulfate resistance test were performed in this study. Test results show that the developed coating material is effective against durability deterioration.

Effects of Fine Aggregate Size on Penetration Performances of SSPM (잔골재의 입도분포가 SSPM의 침투성능에 미치는 영향)

  • Yoon, Hyun-Kwang;Youn, Da-Ae;Lee, Chan-Woo;Park, Wan-Shin;Yun, Hyun-Do
    • Journal of the Korea institute for structural maintenance and inspection
    • /
    • v.23 no.3
    • /
    • pp.25-31
    • /
    • 2019
  • This study was conducted to evaluate the penetration performance of the Silane Surface Protection Material (SSPM) penetrating the micro pore of concrete surface. The results was indicated microstructure, porosity and penetration depth of applied SSPM. Silica sand and conventional sand were used as fine aggregate in mortar. And liquid and cream types SSPM were used. The amounts of SPM were applied the 127, 255, 382, 510 g/m2 on the surface of mortar. The penetration depth specimens were made with $100{\times}30mm$ in according with KS F 4930. Penetration depth was evaluated according to KS F 4930, divide specimen and then spraying with water in cross section of specimens, and measure the depth of the non-wetted area. The microstructure result of mortar applied SSPM, it was obtained liquid and cream SSPM in mortar. The porosity results of SSPM application specimens were improved with than that of plain specimens. Test results indicated that the penetration depth of SPM were improved with increasing in amounts of SSPM. As a result of test, application of SSPM to concrete surface, it will improve durability.