KR101498235B1 - Corrosion inhibition surface coating composition in contain of calcium hydroxide and performance of corrosion and fixing carbon dioxide and chlorine ion in reinforced concrete structure - Google Patents

Corrosion inhibition surface coating composition in contain of calcium hydroxide and performance of corrosion and fixing carbon dioxide and chlorine ion in reinforced concrete structure Download PDF

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KR101498235B1
KR101498235B1 KR20130124186A KR20130124186A KR101498235B1 KR 101498235 B1 KR101498235 B1 KR 101498235B1 KR 20130124186 A KR20130124186 A KR 20130124186A KR 20130124186 A KR20130124186 A KR 20130124186A KR 101498235 B1 KR101498235 B1 KR 101498235B1
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concrete structure
reinforced concrete
corrosion
weight ratio
calcium hydroxide
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이한승
류화성
민인기
안영기
신현관
김성길
최대원
서진용
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주식회사 비앤비
한양대학교 에리카산학협력단
주식회사 건화
주식회사 도화엔지니어링
(재)한국건설품질연구원
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/06—Oxides, Hydroxides
    • C04B22/062—Oxides, Hydroxides of the alkali or alkaline-earth metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • C04B24/122—Hydroxy amines
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
    • C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/61—Corrosion inhibitors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72—Repairing or restoring existing buildings or building materials
    • C04B2111/723—Repairing reinforced concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Architecture (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
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  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The present invention is to provide an anticorrosive surface coating composition for containing calcium hydroxide in quantity, securing anticorrosive properties, and fixing carbon dioxide and chlorine of a reinforced concrete structure. The anticorrosive surface coating composition is spread on the surface of the reinforced concrete structure, and comprises special cement mortar powder, SBR latex, an organic anticorrosive agent, and water. Also, the composition can be used for a construction method for inhibiting corrosion of an iron bar or damage from sea wind and neutralization of the reinforced concrete structure which can be corroded due to damage from sea wind, neutralization, or complex phenomena of damage from sea wind and neutralization of the reinforced concrete structure.

Description

철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재{Corrosion inhibition surface coating composition in contain of calcium hydroxide and performance of corrosion and fixing carbon dioxide and chlorine ion in reinforced concrete structure}Technical Field The present invention relates to a corrosion inhibiting surface coating composition containing a large amount of calcium hydroxide in a reinforced concrete structure, securing the anticorrosion property, fixing the carbon dioxide, and fixing the chlorine,

본 발명은 방청표면피복재에 관한 것으로, 특히 철근콘크리트 구조물의 염해, 중성화 또는 염해 및 중성화 복합현상에 의한 철근의 부식이나 부식될 우려가 있는 철근콘크리트 구조물의 염해 및 중성화 억제공법 및 철근부식 보수시스템 공법에 사용하기에 적당하도록 한 철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재에 관한 것이다.
The present invention relates to a rust-preventive surface coating material, and more particularly, to a method for inhibiting the corrosion and neutralization of a reinforced concrete structure which may cause corrosion or corrosion of reinforcing bars due to chloride, neutralization or salt- Which is suitable for use in a reinforced concrete structure, to secure a rust-preventive property, to fix carbon dioxide, and to fix a chlorine-free rust-preventive surface covering material.

일반적으로 시멘트 콘크리트의 표면에 페인트를 도포하거나, 또는 타일 등을 부착하여 시멘트 구조물을 보호하여 왔다. 그러나, 최근 환경 악화로 인하여 매연 및 산성비로 인하여 건축물의 외면이 부식하거나, 또는 부착된 타일이 떨어지게 되는 등 여러 문제가 발생하고 있다. 따라서, 시멘트 구축물이나 타일 표면에 도막제를 적용하여 내후성, 접착성, 내마모성, 내약품성, 내수성, 난연성 등을 향상시키기 위한 기술이 시도되고 있다.Generally, paint has been applied to the surface of cement concrete, or tiles have been attached to protect the cement structure. However, recent environmental deterioration has caused various problems such as corrosion of the outer surface of the building due to soot and acid rain or detachment of the attached tiles. Accordingly, attempts have been made to improve the weatherability, adhesiveness, abrasion resistance, chemical resistance, water resistance, flame retardancy and the like by applying a coating agent to the surface of a cement structure or a tile.

철근콘크리트조 구조물은 반영구적이라고 생각되어 왔으나 실제로 경년 열세 후 철근 콘크리트조 구조물을 살펴보면 ① 콘크리트 중성화, ② 철근 부식, ③ 콘크리트 균열, ④ 누수, ⑤ 콘크리트 강도변화, ⑥ 대(大) 변형, ⑦ 콘크리트 표면열화, ⑧ 콘크리트 동해 등 열화현상이 발생하고 있어 철근콘크리트 구조물의 내구성 향상 대책이 필요하며, 또한 이러한 열화현상은 대부분 다음과 같이 철근부식으로 이어져 구조물의 내력저하를 초래하고 경우에 따라서는 구조물의 안전성에 심각한 영향을 끼치는 경우도 있다.Reinforced concrete structure is thought to be semi-permanent. However, if you look at reinforced concrete structure after aging, ① concrete neutrality, ② rebar corrosion, ③ concrete crack, ④ leakage, ⑤ concrete strength change, ⑥ large strain, ⑦ concrete surface Deterioration of concrete structure due to deterioration such as deterioration of concrete due to deterioration of concrete is required. In addition, the deterioration phenomenon of the reinforced concrete structure leads to the corrosion of reinforcing steel as follows, resulting in deterioration of the structural strength of the structure. In some cases, In some cases.

- 콘크리트 중성화 -> 철근부식 -> 균열,박리 -> 내력저하- Neutralization of concrete -> Corrosion of reinforcing steel -> Cracks and peeling -> Decrease of strength

- 콘크리트 염해 -> 철근부식 -> 균열,박리 -> 내력저하- Corrosion of concrete -> Corrosion of reinforcing steel -> Cracking, peeling -> Decrease of strength

- 콘크리트 동해 -> 균열,박리 -> 철근부식 -> 내력저하- Concrete East Sea -> Cracks, peeling -> Corrosion of reinforcing steel -> Decrease of strength

- 콘크리트 균열 -> 주변콘크리트 중성화 및 염해 -> 철근부식 -> 내력저하- Concrete crack -> Neutralization and saltation of surrounding concrete -> Corrosion of reinforcing steel -> Decrease of strength

특히, 철근콘크리트조 구조물에 있어서 철근부식에 가장 영향을 많이 미치는 열화원인은 콘크리트의 중성화 및 염해이며 철근콘크리트조 구조물의 내구성을 향상시키기 위해서는 중성화 및 염해에 대한 보수공법의 개발 및 이를 구성하는 재료의 개발이 매우 중요하다. 특히, 중성화 및 염해에 의한 철근부식은 전기화학적인 반응에 의하여 일어나는 현상이므로 이를 근본적으로 억제하기 위해서는 화학약품에 의한 근본적인 치료를 실시할 필요가 있다.In order to improve the durability of the reinforced concrete structure, it is necessary to develop a repair method for neutralization and saltation, and to develop a repair method for the materials constituting the reinforced concrete structure. Development is very important. In particular, corrosion of steel bars due to neutralization and salt corrosion is a phenomenon caused by an electrochemical reaction. Therefore, in order to fundamentally suppress corrosion, it is necessary to perform fundamental treatment with chemicals.

한편, 철근 콘크리트조 구조물의 염해란 콘크리트중의 염화물이 철근을 부식시켜 철근 및 콘크리트가 열화하는 현상을 말하는데, 일반적으로 염화물이 콘크리트 구조물에 혼입되는 과정은 ① 세골재로서 충분히 세정하지 않은 해사를 사용한 경우, ② 염화물을 다량 포함한 혼화제를 사용하는 경우, ③ 융설제(融雪劑)를 콘크리트 표면에 도포한 경우, ④ 해안에서 해염 입자가 콘크리트 구조물에 비래하여 침투하는 경우 등이 있다. 여기서, ①과 ②를 내재염분, ③과 ④를 비래염분이라고 하며, 염해 피해란 콘크리트 내에 혼입되는 염화물이 철근을 부식시켜 철근콘크리트 구조물에 균열 및 내력저하를 초래하여 최종적으로 구조물의 안전성, 사용성, 내구성을 저하시키는 현상을 말한다.On the other hand, the salting of the reinforced concrete structure is the phenomenon that the chloride in the concrete deteriorates the reinforcing steel and the concrete due to the corrosion of the reinforcing steel. Generally, the process of incorporating the chloride into the concrete structure is as follows: (2) a case where an admixture containing a large amount of chloride is used, (3) a case where a melting snow agent is applied to a concrete surface, and (4) seawater particles penetrate into a concrete structure from the coast. Here, ① and ② are the intrinsic salt, ③ and ④ are the saline, and the salt damage is caused by the chloride introduced into the concrete to corrode the rebar, causing the crack and the strength reduction of the reinforced concrete structure. Finally, It is a phenomenon that degrades durability.

콘크리트 내부는 pH가 높기 때문에 철근 부식은 크게 억제되지만 이러한 환경 하에서도 염소이온이 존재하면 염소이온에 의해 부동태 피막이 파괴되고 혹은 부동태화가 방해 받게된다. 이들 현상 메카니즘은 ① 염소이온의 산화철 피막에 대한 해질작용, ② 흡착에 의한 철 이온의 용해촉진, ③ 생성물 연속반응의 진행, ④ 아노드 반응에 대한 촉매작용, ⑤ 철과 직접반응에 의한 중간생성물의 생성, ⑥ pH의 저하, ⑦ 전기 전도도의 증대로 설명되고 있다.Inside the concrete, the corrosion of reinforcing steel is greatly suppressed because of the high pH. However, even in this environment, if there is chlorine ion, the passive film is destroyed or the passivation is obstructed by chlorine ion. These phenomenon mechanisms include: (1) dissolution of iron oxide coating of chlorine ions, (2) promotion of dissolution of iron ions by adsorption, (3) progress of continuous product reaction, (4) catalysis of anode reaction, (5) , (6) a decrease in pH, and (7) an increase in electrical conductivity.

이와 같이 염소이온의 작용은 간접적이고 촉매적인 것이라고 생각되지만 이 문제에 대하여는 아직 충분히 해명되지 않은 점도 많고 금후의 연구 과제로 남아있다.Thus, the action of chlorine ions is thought to be indirect and catalytic, but this problem has not been sufficiently clarified yet, and remains a subject of further research.

콘크리트내 염소이온량과 철근부식과의 관계에 대한 조사 결과, 콘크리트중의 철근 부식 한계 염화물 이온농도는 전체적으로 0.31.2kg/㎥ 정도의 농도를 한계치로 하는 경우가 많다. 또한, 대부분의 규정에서 염소이온이 시멘트 중량의 0.4% 이하, NaCl량이 모래 절건 중량의 0.04% 이하로 되어있고 이를 염화물 이온 총량 규제로 산정하면 염화물 이온 총량 0.3kg/㎥ 에 해당하므로 철근이 전혀 부식하지 않는다는 조건하에 설정된 안전값으로 철근콘크리트 구조물의 한계 염화물 함유량은 이 값이 적절하다고 판단된다. 따라서, 콘크리트 제조시 콘크리트 사용재료에서 염소이온이 혼입되지 않도록 하거나 규정 혼입량 이하로 하는 것이 매우 중요하며, 기존 구조물의 경우 융설제나 해안가의 비래염분이 콘크리트내로 침투하지 않도록 방지하는 것이 매우 중요하다.As a result of the investigation on the relationship between the amount of chloride ion in concrete and the corrosion of reinforcing steel, the limit value of chloride ion concentration of reinforcing steel in concrete is generally about 0.31.2kg / ㎥. In most regulations, the chloride ion content is 0.4% or less of the cement weight, the NaCl content is 0.04% or less of the sand clearance weight, and the total amount of chloride ion is 0.3 kg / The limit value of the chloride content of the reinforced concrete structure is considered to be appropriate for the safety value set under the condition that it is not used. Therefore, it is very important to prevent the incorporation of chlorine ions in concrete used materials or to reduce the amount of concrete admixture below concrete amount in concrete production, and it is very important to prevent existing materials such as snowmelt and coastal salt from penetrating into concrete.

그래서, 기존 철근콘크리트 구조물의 염해 방지 기술로서는 구조물 신축시에 내재 염화물 혼입 및 비래 염화물 침투에 대비한 예방적 대책과 기존 구조물의 내재 염화물 및 비래 염화물에 의하여 철근이 부식하고 콘크리트 균열 발생 및 박락이 발생한 경우의 보수보강 대책으로 크게 나눌 수 있다.In order to prevent the corrosion of existing reinforced concrete structures, preventive countermeasures against the incorporation of internal chloride and fly ash chloride during construction and expansion of concrete structures and corrosion of reinforcing steel by internal chloride and fly ash chloride of existing structures, And can be roughly classified into maintenance and reinforcement measures in the case of

구조물 신축시 내재 염화물에 대한 염해 대책은 ① 충분히 세정한 해사 사용(레미콘 염화물 총량 규제 0.3kg/㎥ 이하 확인), ② 철근 표면 처리, ③ 콘크리트 밀실화, ④ 철근 피복두께 증가, ⑤ 방청제 사용, ⑥ 전기방식 등이 있다.(1) Reinforced concrete surface treatment, (3) Concrete tightening, (4) Reinforcement coating thickness increase, (5) Rust inhibitor use, (6) Electric system.

한편, 비래 염화물 침투에 대한 대책으로서는 산소, 수분, 염소이온 침투를 방지하기 위한 콘크리트 표면 피복이 주로 사용되고 있어 구조물 신축시의 염해 대책 기술은 거의 완성되어 있다고 할 수 있다.On the other hand, as a countermeasure against the penetration of fly ash chloride, concrete surface coating is mainly used to prevent penetration of oxygen, moisture and chlorine ions, so that the countermeasure against the salt build-up at the time of constructing the structure is almost completed.

그러나, 기존 건축물에 규정량 이상의 내재염분이 존재하여 철근이 부식할 우려가 있는 구조물에 대한 염해 보수 시스템공법은 아직 확립되어 있지 않으며 콘크리트내의 염소이온을 제거하지 않는 한 염해에 대한 철근 부식 방지 근본 대책이 될 수 없었다. 따라서, 콘크리트내에 염분이 내재하고 있는 경우는 철근 주위의 염소이온을 제거하거나 염소이온을 고정화시키고 철근의 부동태를 재생시키는 도포형 방청제의 개발이 필요하였다.However, the saltwater repair system has not yet been established for structures where there is a risk of corrosion of reinforcing bars due to the existence of an inherent amount of salt existing in existing buildings. As long as chloride ions in concrete are not removed, Could not be. Therefore, it is necessary to develop a coating type antirust agent which removes chloride ions around reinforcing bars or immobilizes chlorine ions and regenerates the passive behavior of reinforcing bars when the salt is contained in the concrete.

기존 개발된 도포형 방청제는 제조 단가가 고가인 점, 방청성분이 낮은 점, 철근위치까지 깊이 침투시킬 수 없는 점 등 문제점을 가지고 있어 이를 해결하기 위하여 저가이면서도 수성타입의 고 농도 방청제의 개발이 요청되고 있는 것이 현 실정이다.Conventionally developed coating type rust inhibitor has problems such as high manufacturing cost, low rust-inhibiting component, and inability to penetrate deeply into the position of reinforcing bar. To solve this problem, development of a low-concentration, high-concentration rust- It is the present situation that it is becoming.

더욱이, 철근 콘크리트에 발생하는 중성화 및 염해는 개별적으로 진행되는 것이 아니라 동시에 복합적으로 이루어지므로 이에 대한 대책이 필요하나 중성화 및 염해 대책을 동시에 해결할 수 있는 재료 및 공법은 현재까지 개발되어 있지 않아 이에 대한 개발이 요청되고 있었다.
Furthermore, since the neutralization and the salt damage occurring in the reinforced concrete are not progressed individually but are simultaneously combined, measures and measures are needed. However, the materials and the methods for solving the neutralization and the countermeasures against saltiness have not been developed so far, This was being asked.

이에 본 발명은 상기와 같은 종래의 제반 문제점을 해결하기 위해 제안된 것으로, 본 발명의 목적은 철근콘크리트 구조물의 염해, 중성화 또는 염해 및 중성화 복합현상에 의한 철근의 부식이나 부식될 우려가 있는 철근콘크리트 구조물의 염해 및 중성화 억제공법 및 철근부식 보수시스템 공법에 사용할 수 있는 철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재를 제공하는데 있다.
It is therefore an object of the present invention to provide a reinforced concrete structure capable of preventing corrosion or corrosion of a reinforcing steel due to salt corrosion, The present invention is to provide a rust-preventive surface covering material containing a large amount of calcium hydroxide of a reinforced concrete structure which can be used for a method of inhibiting saltiness and neutralization of a structure and a method of repairing corrosion of reinforcing steel, securing rust prevention, fixing carbon dioxide and fixing chlorine.

철근콘크리트 구조물의 표면에 도포하는 방청표면피복재에 있어서, 특수시멘트 모르터파우더, SBR 라텍스, 유기계방청제, 및 물을 포함하여 이루어지는 것을 특징으로 한다.A rust preventive coating material applied to the surface of a reinforced concrete structure, characterized by comprising a special cement mortar powder, an SBR latex, an organic rust inhibitor, and water.

상기 특수시멘트 모르터파우더는, 특수시멘트 및 소석회계의 혼합물 중량비 1과 실리카질골재 중량비 2로 구성하고, 특수시멘트 및 소석회계의 혼합물 중량비 1에서 상기 특수시멘트는 70~90 중량, 상기 소석회계는 10~30 중량%로 구성하고, 상기 실리카질골재 중량비 2에서 상기 실리카질골재는 100중량%로 구성한 것을 특징으로 한다.The special cement mortar powder is composed of a mixture weight ratio 1 and a siliceous aggregate weight ratio 2 of a special cement and a feldspar accounting and a special weight ratio 1 of the mixture of special cement and feldspar accounting and 70 to 90 weight of the special cement, To 30% by weight, and the silica-based aggregate is composed of 100% by weight in the silica-based aggregate weight ratio of 2.

상기 SBR 라텍스는, 스틸렌과 부타디엔 중합체로 이루어진 수성 에멀젼으로 구성한 것을 특징으로 한다.The SBR latex is characterized by being composed of an aqueous emulsion composed of styrene and a butadiene polymer.

상기 유기계방청제는, 유기계 아미노알코올 유도체 77~80 중량%과 수산화나트륨(NaOH) 수용액 15~18 중량%와 실란계 2~5 중량%로 혼합된 것을 특징으로 한다.The organic antirust agent is mixed with 77 to 80% by weight of an organic aminoalcohol derivative, 15 to 18% by weight of an aqueous solution of sodium hydroxide (NaOH) and 2 to 5% by weight of a silane based agent.

상기 방청표면피복재는, 상기 특수시멘트 모르터파우더 중량비 100에 대해 상기 SBR 라텍스는 120~122 중량비, 상기 유기계방청제는 3~5 중량비로 구성한 것을 특징으로 한다.
The rustproofing surface coating material is characterized in that the SBR latex has a weight ratio of 120 to 122, and the organic rust inhibitor has a weight ratio of 3 to 5, based on 100 weight ratio of the special cement mortar powder.

본 발명에 의한 철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재는 철근콘크리트 구조물의 염해, 중성화 또는 염해 및 중성화 복합현상에 의한 철근의 부식이나 부식될 우려가 있는 철근콘크리트 구조물의 염해 및 중성화 억제공법 및 철근부식 보수시스템 공법에 사용할 수 있는 효과가 있게 된다.
The rust-preventive surface coating material containing a large amount of calcium hydroxide in the reinforced concrete structure, securing the rust prevention property, fixing the carbon dioxide, and chlorine in the reinforcing concrete structure may cause corrosion or corrosion of the reinforcing steel due to chloride, neutralization or salt- There is an effect that can be used in the method of inhibiting the saltation and neutralization of the reinforced concrete structure and the method of repairing the reinforcing steel corrosion system.

이와 같이 구성된 본 발명에 의한 철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재의 바람직한 실시예를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다. 하기에서 본 발명을 설명함에 있어 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략할 것이다. 그리고 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서, 이는 사용자, 운용자의 의도 또는 판례 등에 따라 달라질 수 있으며, 이에 따라 각 용어의 의미는 본 명세서 전반에 걸친 내용을 토대로 해석되어야 할 것이다.A preferred embodiment of a rust-inhibitive surface covering material having a large amount of calcium hydroxide, securing of anticorrosive properties, fixing of carbon dioxide, and fixing of chlorine in the reinforced concrete structure according to the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It is to be understood that the following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention of the user, the operator, or the precedent, and the meaning of each term should be interpreted based on the contents will be.

먼저 본 발명은 철근콘크리트 구조물의 염해, 중성화 또는 염해 및 중성화 복합현상에 의한 철근의 부식이나 부식될 우려가 있는 철근콘크리트 구조물의 염해 및 중성화 억제공법 및 철근부식 보수시스템 공법에 사용하고자 한 것이다.The present invention is intended to be used in a method of inhibiting the corrosion and neutralization of a reinforced concrete structure and a method of repairing corrosion of reinforcing bars, which are likely to corrode or corrode rebar due to saltification, neutralization or saltation and neutralization of a reinforcing concrete structure.

본 발명에서는 철근콘크리트 구조물의 표면에 도포하는 방청표면피복재를 구성하기 위해서, 특수시멘트 모르터파우더, SBR 라텍스, 유기계방청제, 및 물을 포함하여 제조되도록 한다.In the present invention, special cement mortar powder, SBR latex, organic rust inhibitor, and water are prepared so as to constitute a rust-preventive surface coating material to be applied to the surface of a reinforced concrete structure.

실험데이터는 다음의 표 1과 같다.The experimental data are shown in Table 1 below.

방청표면피복재 최적 배합실험(중량비)Optimum Mixing Experiment (Weight Ratio) 구분division 특수시멘트
모르터파우더Special cement
Mortar Powder SBR 라텍스SBR latex 고알카리 유기계방청제High alkali organic rust inhibitor 물water 1One 100100 100100 33 0.05~0.10.05 to 0.1 22 100100 120120 55 0.05~0.10.05 to 0.1 33 100100 100100 1010 0.05~0.10.05 to 0.1 44 100100 120120 1010 0.05~0.10.05 to 0.1 55 100100 100100 2020 0.05~0.10.05 to 0.1 66 100100 120120 2020 0.05~0.10.05 to 0.1 77 100100 100100 3030 0.05~0.10.05 to 0.1 88 100100 120120 3030 0.05~0.10.05 to 0.1 99 120120 100100 55 0.05~0.10.05 to 0.1 1010 120120 100100 1010 0.05~0.10.05 to 0.1 1111 120120 100100 2020 0.05~0.10.05 to 0.1 1212 120120 120120 55 0.05~0.10.05 to 0.1 1313 120120 120120 1010 0.05~0.10.05 to 0.1 1414 120120 120120 2020 0.05~0.10.05 to 0.1 1515 100100 120120 1010 0.05~0.10.05 to 0.1 1616 100100 122122 33 0.05~0.1 0.05 to 0.1 1717 100100 120120 55 0.05~0.1 0.05 to 0.1

* 방청표면피복재 = 특수시멘트 모르터파우더 + SBR 라텍스 + * Anti-rust surface covering material = special cement mortar powder + SBR latex +

유기계방청제+ 물(시공년도조정, 소량)                    Organic antirust agent + water (adjustment of construction year, small amount)

배합비 = 특수시멘트 모르터파우더 = 중량비 100 : SBR 라텍스(120~122 중량) + 유기계방청제(3~5 중량)+ 물(시공년도조정, 소량)   Mixing ratio = special cement mortar powder = weight ratio 100: SBR latex (120 ~ 122 weight) + organic antirust agent (3-5 weight) + water

- 특수시멘트 모르터파우더 = (특수시멘트 + 소석회계)= 중량비 1 + - Special cement mortar powder = (Special cement + Mineral accounting) = Weight ratio 1 +

(실리카질골재)= 중량비 2 -> 중량비 1 : 2                           (Silica-based aggregate) = weight ratio 2 -> weight ratio 1: 2

특수시멘트 70~90 중량% + 소석회계 10~30 중량% = 중량비 1       Special cement 70 ~ 90wt% + Mineral stones 10 ~ 30wt% = Weight ratio 1

실리카질골재 100% = 중량비 2                 100% silica-based aggregate = weight ratio 2

- SBR 라텍스 = 스틸렌과 부타디엔 중합체로 이루어진 수성 에멀젼- SBR latex = aqueous emulsion consisting of styrene and butadiene polymer

- 고알카리 유기계방청제 = 유기계 아미노알코올 유도체 77~80 중량%와 NaOH 15~18 중량% 수용액과 실란계 2~5 중량%이 혼합- High alkali organic rust inhibitor = 77 to 80% by weight of organic aminoalcohol derivative, 15 to 18% by weight of NaOH aqueous solution and 2 to 5% by weight of silane system

- 물(시공년도조정, 소량)- Water (adjustment of construction year, small amount)

이에 대한 실험결과는 다음의 표 2 및 표 3에 나타내었다.The experimental results are shown in Tables 2 and 3 below.

실험결과1(실험데이터 1~9)Experimental Results 1 (Experimental Data 1 to 9) 구분division 1One 22 33 44 55 66 77 88 99 초기건조
잔갈림시험
KS F 4715Early drying
Jaff test
KS F 4715 ◎◎ ◎◎ ◎◎ ○○ △△ ×× △△ ×× ○○ 압축강도(14일) MPaCompressive strength (14 days) MPa 172172 186186 155155 168168 140140 100100 110110 8686 179179 중성화 14일, mmNeutralization 14 days, mm 0.350.35 0.30.3 0.420.42 0.620.62 1.051.05 2.342.34 2.032.03 3.203.20 0.330.33 투수량, gPermeability, g 1.971.97 1.31.3 2.342.34 5.345.34 2020 3030 2424 15.415.4 1717 부착강도 28일, MPaBond strength 28 days, MPa 1.101.10 1.321.32 1.201.20 1.171.17 1.261.26 0.670.67 1.171.17 0.930.93 1.391.39 내마모성, mgAbrasion resistance, mg 570570 540540 513513 607607 11071107 756756 17521752 768768 760760

◎우수, ○양호, △보통, ×불량 ◎ Excellent, ∘ Good, △ Normal, × Bad

실험결과2(실험데이터 10~17)Experimental Result 2 (Experimental Data 10 to 17) 구분division 1010 1111 1212 1313 1414 1515 1616 1717 초기건조
잔갈림시험
KS F 4715Early drying
Jaff test
KS F 4715 ◎◎ △△ ×× ○○ △△ ◎◎ ◎◎ ◎◎ 압축강도(14일) MPaCompressive strength (14 days) MPa 163163 107107 4646 193193 130130 159159 193193 195195 중성화 14일, mmNeutralization 14 days, mm 0.350.35 1.471.47 2.672.67 0.670.67 1.301.30 0.370.37 0.250.25 0.290.29 투수량, gPermeability, g 3.273.27 2525 3232 6.86.8 2121 3.273.27 1.31.3 1.31.3 부착강도 28일, MPaBond strength 28 days, MPa 1.171.17 1.081.08 1.01.0 1.351.35 1.211.21 1.301.30 1.341.34 1.331.33 내마모성, mgAbrasion resistance, mg 590590 963963 751751 850850 980980 534534 549549 509509

◎우수, ○양호, △보통, ×불량◎ Excellent, ∘ Good, △ Normal, × Bad

이처럼 표 2 및 표 3에서와 같이, 실험데이터 중에서 2, 16, 17이 우수한 성능을 보인 것으로 나타났다.As shown in Table 2 and Table 3, the experimental data 2, 16, and 17 showed excellent performance.

최적 배합비에서 도출된 값을 이용한 본 발명에 의한 방청표면피복재의 제반 성능을 기존기술과 비교한 데이터는 다음의 표 4에 나타내었다.Table 4 shows data of the performance of the rust-inhibitive surface covering material according to the present invention using the values derived from the optimum compounding ratio with respect to the existing technology.

방청표면피복재(최적 배합비에서 도출된 값)Anti-rusting surface covering material (value derived from optimum blending ratio) 구분division 방청표면피복재Rustproof surface covering material 기존기술 AExisting Technology A 기존기술 BExisting technology B 기존기술 BExisting technology B 부착강도Bond strength 표준조건
(재령 28일)Standard condition
(28 days old) 1.34 N/mm21.34 N / mm < 2 > 0.87
N/mm20.87
N / mm2 0.96 N/mm20.96 N / mm2 0.99
N/mm20.99
N / mm2 온냉반복후
(재령 28일)After warm-cold repeat
(28 days old) 1.27 N/mm21.27 N / mm < 2 > 0.47
N/mm20.47
N / mm2 0.27
N/mm20.27
N / mm2 0.61 N/mm20.61 N / mm < 2 & 중성화저항성Neutralization resistance 재령 3일3 days 0.0 mm0.0 mm 0.59 mm0.59 mm 1.36 mm1.36 mm 1.32 mm1.32 mm 재령 7일7 days a year 0.2 mm 0.2 mm 1.24 mm1.24 mm 2.34 mm2.34 mm 1.77 mm1.77 mm 재령 14일14 days 0.3 mm0.3 mm 2.67 mm2.67 mm 2.29 mm2.29 mm 3.02 mm3.02 mm 재령 21일21st year 0.5 mm0.5 mm 3.31 mm3.31 mm 3.97 mm3.97 mm 3.32 mm3.32 mm 재령 28일28 days old 0.6 mm0.6 mm 4.68 mm4.68 mm 4.35 mm4.35 mm 3.97 mm3.97 mm 투수량Amount of water 1.3 g1.3 g 15.4 g15.4 g 17.7 g17.7 g 22.6 g22.6 g 염화물이온침투저항성Chloride ion penetration resistance 156
(Coulmbs)156
(Coulmbs) 896
(Coulmbs)896
(Coulmbs) 1147
(Coulmbs)1147
(Coulmbs) 1027
(Coulmbs)1027
(Coulmbs) 동결융해
저항성
300싸이클후Freeze-thaw
Resistance
After 300 cycles 상대
동탄성계수
(%)opponent
Modulus of elasticity
(%) 99.099.0 85.185.1 82.582.5 87.687.6 외관변화Appearance change 이상없음clear 일부균열
발생Some cracks
Occur 갈라짐발생Cracking occurred 박락발생Disruption 부착강도Bond strength 2.29 N/mm2  2.29 N / mm < 2 > 1.10 N/mm21.10 N / mm < 2 > 0.97
N/mm20.97
N / mm2 1.03
N/mm21.03
N / mm2 내마모성Abrasion resistance 549 mg549 mg 1782 mg1782 mg 1142 mg1142 mg 967 mg967 mg

* 시험방법 : KS F 4042* Test method: KS F 4042

표 4에서와 같이, 본 발명은 기존기술과 비교하여, 부착강도, 붕성화저항성, 투수량, 염화물이온 침투 저항성, 동경융해 저항성에서 모두 우수한 성능을 보였다.As shown in Table 4, the present invention exhibited excellent performance in terms of adhesion strength, boronization resistance, permeation amount, chloride ion penetration resistance, and long-term fusion resistance, as compared with the prior art.

염소이온침투저항성(Coulmbs), 염화물 Cl-고정Chlorine ion penetration resistance (Coulmbs), chloride Cl - immobilized 구분division 방청표면피복재Rustproof surface covering material 기존기술 AExisting Technology A 기존기술 BExisting technology B 기존기술 BExisting technology B 염화물량Amount of chloride 156156 896896 11471147 10271027

* 시험방법 : KS F 4042* Test method: KS F 4042

표 5에서와 같이, 본 발명에 의한 방청표면 피복재는 기준기술과 비교하여 염화물량이 낮아, 염소이온 침투 저항성에서 높은 성능을 보였다.As shown in Table 5, the rust-inhibitive surface coating material of the present invention exhibited a high chlorine ion penetration resistance performance due to a low chloride content as compared with the reference technology.

고알카리 유기계 방청제를 혼입한 경우 방청표면피목재 CO2고정When high alkaline organic rust inhibitor is mixed, the rust-preventive surface is fixed to wood CO 2 구분division 고알카리 유기계
방청제를 혼입 High alkaline organic system
Contain rust inhibitor 기존방청제 A
를 혼입Existing rust inhibitor A
Incorporated 기존방청제B
를 혼입Existing rust inhibitor B
Incorporated 방청표면피복재Rustproof surface covering material 표면피복재Surface covering material 표면피복재Surface covering material 투수량(g)Permeability (g) 1.31.3 17.717.7 22.622.6

* 시험방법 : KS F 4042* Test method: KS F 4042

표 6에서와 같이, 고알카리 유기계 방청제를 혼입했을 경우, 기존방청제를 혼입한 것과 비교하여 투수량이 매우 적어 이산화탄소 고정 성능이 우수한 상태임을 알 수 있다.As shown in Table 6, when the high alkali organic rust inhibitor is incorporated, it can be understood that the amount of water permeability is low and the carbon dioxide fixing performance is excellent compared with the case where the existing rust inhibitor is incorporated.

이처럼 본 발명은 철근콘크리트 구조물의 염해, 중성화 또는 염해 및 중성화 복합현상에 의한 철근의 부식이나 부식될 우려가 있는 철근콘크리트 구조물의 염해 및 중성화 억제공법 및 철근부식 보수시스템 공법에 사용하게 되는 것이다.As described above, the present invention is used in a method for inhibiting the corrosion and neutralization of reinforced concrete structures and a method for repairing rebar corrosion and corrosion of reinforced concrete structures, which are likely to corrode or corrode rebar due to salinization, neutralization or salt /

이상에서 실시예를 들어 본 발명을 더욱 상세하게 설명하였으나, 본 발명은 반드시 이러한 실시예로 국한되는 것은 아니고, 본 발명의 기술사상을 벗어나지 않는 범위 내에서 다양하게 변형실시될 수 있다. 따라서 본 발명에 개시된 실시예들은 본 발명의 기술적 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 발명의 기술적 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호범위는 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술적 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof, and various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but are intended to illustrate and not limit the scope of the technical spirit of the present invention. The scope of protection of the present invention should be construed according to the claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

Claims (5)

철근콘크리트 구조물의 표면에 도포하는 방청표면피복재에 있어서,
특수시멘트 모르터파우더, SBR 라텍스, 유기계 아미노알코올 유도체 77~80 중량%과 수산화나트륨(NaOH) 수용액 15~18 중량%와 실란계 2~5 중량%로 혼합된 유기계방청제, 및 물을 포함하여 이루어지는 것을 특징으로 하는 철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재.
A rust-preventive surface coating material applied to a surface of a reinforced concrete structure,
A special cement mortar powder, an SBR latex, an organic antirust agent mixed with 77 to 80 wt% of an organic amino alcohol derivative, 15 to 18 wt% of an aqueous solution of sodium hydroxide (NaOH) and 2 to 5 wt% of a silane system, and water Features of reinforced concrete structure containing large amounts of calcium hydroxide, rustproof surface, carbon dioxide fixation, and chlorine fixation.
청구항 1에 있어서,
상기 특수시멘트 모르터파우더는,
특수시멘트 및 소석회계의 혼합물 중량비 1과 실리카질골재 중량비 2로 구성하고, 특수시멘트 및 소석회계의 혼합물 중량비 1에서 상기 특수시멘트는 70~90 중량, 상기 소석회계는 10~30 중량%로 구성하고, 상기 실리카질골재 중량비 2에서 상기 실리카질골재는 100중량%로 구성한 것을 특징으로 하는 철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재.
The method according to claim 1,
In the special cement mortar powder,
The mixture ratio of special cement and feldspar accounting to weight ratio 1 and silica based aggregate weight ratio 2, and the special cement and the feldspar accounting for the mixture weight ratio 1 of special cement and feldspar accounting are composed of 70 to 90 wt% and 10 to 30 wt% , And the silica-based aggregate is composed of 100% by weight of the silica-based aggregate at a weight ratio of 2, wherein the reinforcing concrete structure contains a large amount of calcium hydroxide, securing the anticorrosive property, fixing the carbon dioxide, and fixing the chlorine.
청구항 1에 있어서,
상기 SBR 라텍스는,
스틸렌과 부타디엔 중합체로 이루어진 수성 에멀젼으로 구성한 것을 특징으로 하는 철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재.
The method according to claim 1,
The SBR latex comprises
An aqueous emulsion composed of styrene and a butadiene polymer, a large amount of calcium hydroxide in a reinforced concrete structure, a rust-inhibitive surface covering material having securing of anticorrosion, fixing of carbon dioxide, and fixing of chlorine.
삭제delete 청구항 1에 있어서,
상기 방청표면피복재는,
상기 특수시멘트 모르터파우더 중량비 100에 대해 상기 SBR 라텍스는 120~122 중량비, 상기 유기계방청제는 3~5 중량비로 구성한 것을 특징으로 하는 철근콘크리트 구조물의 수산화칼슘 대량함유, 방청성 확보, 이산화탄소 고정, 및 염소의 고정이 있는 방청표면피복재.The method according to claim 1,
The rust-
Wherein the SBR latex is 120 to 122 weight ratio and the organic rustproofing agent is 3 to 5 weight ratio to the special cement mortar powder weight ratio 100. The reinforced concrete structure contains a large amount of calcium hydroxide and secures the anticorrosive property, With rustproof surface covering material.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101590951B1 (en) 2015-09-01 2016-02-02 수암이엔씨 주식회사 Mortar composition for cross-section restoration of reinforced concrete structures and restoring method for cross-section of reinforced concrete structures using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007119258A (en) * 2005-10-25 2007-05-17 Denki Kagaku Kogyo Kk Organic-inorganic composite coating film-curing agent, mortar or concrete using the same, and treatment method
KR20100015689A (en) * 2007-04-20 2010-02-12 에보니크 데구사 게엠베하 Mixture containing organosilicon compound and use thereof
KR101141347B1 (en) * 2011-11-24 2012-05-03 주식회사 세명크리텍 Eco-friendly geopolymer mortar compound for restoring cross section and method for repairing cross section of concrete controlling corrosion, salt-attack and neutralization and using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007119258A (en) * 2005-10-25 2007-05-17 Denki Kagaku Kogyo Kk Organic-inorganic composite coating film-curing agent, mortar or concrete using the same, and treatment method
KR20100015689A (en) * 2007-04-20 2010-02-12 에보니크 데구사 게엠베하 Mixture containing organosilicon compound and use thereof
KR101141347B1 (en) * 2011-11-24 2012-05-03 주식회사 세명크리텍 Eco-friendly geopolymer mortar compound for restoring cross section and method for repairing cross section of concrete controlling corrosion, salt-attack and neutralization and using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101590951B1 (en) 2015-09-01 2016-02-02 수암이엔씨 주식회사 Mortar composition for cross-section restoration of reinforced concrete structures and restoring method for cross-section of reinforced concrete structures using the same

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