RENEWAL CONSTRUCTION METHOD FOR RESTORING ALKALINITY AND DURABILITY IMPROVEMENT OF CHEMICAL EROSION AND NEUTRALIZED(CARBONIZED) STEEL REINFORCED OF CONCRETE

The present invention relates to a repair method for concrete structure with chemical erosion and neutralization, and the present invention is to provide a repair method for concrete structure with chemical erosion and neutralization to effectively recover alkalinity of the reinforced concrete struc...

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Bibliographische Detailangaben
1. Verfasser:	SONG, BYUNG CHANG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE FIXED CONSTRUCTIONS FORMS HANDLING BUILDING MATERIALS ON THE SITE REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SCAFFOLDING SHUTTERING
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Beschreibung
Zusammenfassung:	The present invention relates to a repair method for concrete structure with chemical erosion and neutralization, and the present invention is to provide a repair method for concrete structure with chemical erosion and neutralization to effectively recover alkalinity of the reinforced concrete structure with chemical erosion and neutralization up to pH 10.0 or more, to prevent corrosion of the internal reinforcement, and to closely reinforce pore structure of the concrete to provide strength enhancement and prolongment for durability. The invention includes: a pre-processing step of boring an injection hole on the surface of the concrete structure to reach the interior of non-corrosion and non-neutralizing concrete structure of the concrete or injection groove; an injection device installation step of installing an injection device, in the injection hole or injection groove, filled with alkaline aqueous solution of pH 5.0-12.0 the injection hole portion or an alkaline aqueous solution; an injection step of pressurizing and injecting an alkaline aqueous solution into the concrete structure through the injection hole or the injection groove by the injection device; and a surface treatment step of applying water-repellent material or water-resistant surface treatment on the surface of the concrete structure in which the alkaline aqueous solution is injected. 본 발명은 화학적 침식 및 중성화된 콘크리트 구조물 보수공법에 관한 것으로, 그 목적은 화학적 침식 및 중성화된 철근콘크리트 부위의 알칼리성을 효율적으로 pH 10.0 이상으로 회복시켜, 콘크리트 내부철근의 부식을 방지하고, 콘크리트의 세공조직을 치밀하게 강화하여 강도증진 및 내구수명을 연장시킬 수 있는 화학적 침식 및 중성화된 콘크리트 구조물의 보수공법을 제공하는 것이다. 본 발명은 화학적 침식 및 중성화된 콘크리트 구조물의 보수공법에 있어서; 콘크리트 구조물의 화학적 부식 및 중성화되지 않은 콘크리트 구조물의 내부에 도달되도록 콘크리트 구조물의 표면에 주입홀을 천공 또는 주입홈을 형성하는 사전처리단계; 상기 주입홀 또는 주입홈에 pH 5.0∼12.0 의 알칼리부여성 수용액이 충전된 주입장치를 설치하는 주입장치 설치단계; 상기 주입장치에 의해 주입홀 또는 주입홈을 통해 콘크리트 구조물내로 알칼리부여성 수용액을 가압주입하는 주입단계; 알칼리부여성 수용액이 주입되고 있는 콘크리트 구조물의 표면에 발수성 또는 방수성 표면처리재를 도포 마감하는 표면처리단계를 포함한다.