표면강화형흡수방지재 적용 콘크리트의 기공률 및 내마모성 특성
Porosity and Abrasion Resistance of Concrete Coated by Surface enhanced type Water Repellent
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초록
콘크리트는 일반적으로 구조물에 활용되는 재료로써 다양한 환경조건에 노출된다. 특히 물과 같은 매체를 통해 콘크리트에 유해한 인자가 유입되므로 많은 피해를 야기 시킨다. 이에 콘크리트 내구성을 높이기 위해 많은 재료가 개발되고 있는 실정이다. 그중에 실란과실록산 화합물은 흡수방지제로 활용도가 높은 재료로 알려져 있다. 그러나 노후화되거나 열화된 콘크리트에 처리할 경우 기재 자체가 약해쉽게 박리되어 그 기능을 상실하는 문제점이 있다. 그래서 본 연구에서는 실록산 화합물로 표면 처리된 멜라민-포름알데히드 수지를 활용해콘크리트에 흡수방지제 효과와 동시에 표면강화 성능을 부여하기 위한 실험을 진행하였고, 이를 확인하기 위해 콘크리트의 기공률 및 표면경도 특성을 연구하였다.
Abstract
Concrete is a material generally used to build structures and it is exposed to various environment conditions. In particular, a medium suchas water lets noxious factors flow into concrete, causing a lot of damage. Therefore, different kinds of materials are being developed to increase thedurability of concrete. Among such materials, silane and siloxane compound are known to have a high utilization as an absorption inhibitor. However, if aged or deteriorated reinforced concrete is treated with those compounds, they easily come off the concrete and lose their function sincethe basic material is weak. This study conducted an experiment to provide concrete with both an absorption-inhibiting effect and surfacestrengthening by using melamine-formaldehyde resins that are surface-treated with siloxane compound. In addition, a study on the porosity andsurface hardness characteristics of a concrete was conducted to check the absorption-inhibiting effect and surface strengthening.
참고문헌 (5)
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- V. S. Ramachandran, "Concrete Admixtures Handbook:Properties, Science and Technology", pp.518~ (1984), Noyes Publications
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- M. Roth, "Siliconates-Silicone Resine-Silanes -Siloxanes, Silicone Masonry Water Repellents for the Surface Impregnation of Mineral Building Materals, Pubiato from issue 2", 81 “Baugewerbe”Organ des Zentralverbandes des Deutschen Baugewerbes Verlagsgesellschaft Rudolf Muller GmbH,co, 1982, pp.3~7