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Improvement of Durability and Change of Pore Structure for Concrete Surface by the Penetrative Surface Protection Agent
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 Title & Authors
Improvement of Durability and Change of Pore Structure for Concrete Surface by the Penetrative Surface Protection Agent
Kang, Suk-Pyo; Kim, Jung-Hwan;
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 Abstract
Recently, surface finishing and protection materials were developed to restore performance of the deteriorated concrete and inhibiting corrosion of the reinforcing-bar. For this purpose, surface protection agent as well as coatings are used. Coatings have the advantage of low Permeability of and water. However, for coatings such as epoxy, urethane and acryl, long-term adhesive strength is reduced and the formed membrane of those is blistered by various causes. Also when organic coatings are applied to the wet surface of concrete, those have a problem with adhesion. On the other hand, surface protection agent penetrates into pore structure in concrete through capillary and cm make a dense micro structure in concrete as a result of filling effect. Furthermore, the chemical reaction between silicate from surface protection agent and cement hydrates can also make a additional hydration product which is ideally compatible with concrete body. The aim of this study is to examine the effect of penetrative surface protection agent(SPA) by evaluating several concrete durability characteristics. The results show that the concrete penetrated surface protection agent exhibited higher durability characteristics for instance, carbonation velocity coefficient, resistance to chemical attack and chloride ion penetration than the plain concrete. These results due to formation of a discontinuous macro-pore system which inhibits deterioration factors of concrete by changed the pore structure(porosity and pore size distributions) of the concrete penetrated surface protection agent.
 Keywords
penetrative surface protection agent;porosity;pore size distribution;improvement of durability;concrete surface;
 Language
Korean
 Cited by
1.
탄닌산 부식 억제제를 사용한 콘크리트의 역학적 특성 및 부식저항성,양은익;류종현;염광수;황인동;김명유;

한국콘크리트학회논문집, 2008. vol.20. 6, pp.741-746 crossref(new window)
2.
무기계 표면침투제 용액으로 함침한 콘크리트의 특성 연구,배주성;김혁중;박국준;한종원;

한국구조물진단유지관리공학회 논문집, 2010. vol.14. 1, pp.71-77
3.
결합재 종류에 따른 해양 콘크리트의 강도 발현, 염화물 확산 및 단열온도 상승 특성에 대한 비교 연구,배준영;조성현;신경준;김윤용;

한국콘크리트학회논문집, 2013. vol.25. 4, pp.411-418 crossref(new window)
1.
A Comparative Study on Strength Development, Chloride Diffusivity and Adiabatic Temperature Rise of Marine Concrete Depending on Binder Type, Journal of the Korea Concrete Institute, 2013, 25, 4, 411  crossref(new windwow)
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