KR101882846B1 - Inorganic binder and method for repairing crack of concrete floor - Google Patents

Inorganic binder and method for repairing crack of concrete floor Download PDF

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KR101882846B1
KR101882846B1 KR1020180037567A KR20180037567A KR101882846B1 KR 101882846 B1 KR101882846 B1 KR 101882846B1 KR 1020180037567 A KR1020180037567 A KR 1020180037567A KR 20180037567 A KR20180037567 A KR 20180037567A KR 101882846 B1 KR101882846 B1 KR 101882846B1
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weight
parts
agent
crack
liquid
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이정찬
황인동
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주식회사 새길건설산업
(주)피엠에이
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24Compositions 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 alkyl, ammonium or metal silicates; containing silica sols
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/06Quartz; Sand
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/06Oxides, Hydroxides
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/40Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
    • C04B24/42Organo-silicon compounds
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    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48Macromolecular compounds
    • C04B41/4826Polyesters
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5024Silicates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C04B41/5035Silica
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • C04B41/522Multiple coatings, for one of the coatings of which at least one alternative is described
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, i.e. waterproof or water-repellent materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72Repairing or restoring existing buildings or building materials

Abstract

The present invention relates to an inorganic binder used as an agent for repairing floor cracks such as concrete bridges and the like, and more specifically, to an inorganic binder for repairing a concrete floor, which enhances water resistance, provides excellent waterproof effect, has a high drying speed, is easily painted, and particularly, exhibits excellent properties in a crack region of less than 0.3 mm, and to a method for repairing the floor cracks using the same.

Description

콘크리트 바닥 균열 보수용 무기질 바인더 및 이를 이용한 바닥 균열 보수방법{INORGANIC BINDER AND METHOD FOR REPAIRING CRACK OF CONCRETE FLOOR}TECHNICAL FIELD [0001] The present invention relates to an inorganic binder for repairing cracks in a concrete floor, and a floor crack repair method using the same.

본 발명은 콘크리트 교량 등의 바닥 균열 보수제로 사용되는 무기질 바인더에 관한 것으로, 보다 상세하게는 내수성이 강화되고 우수한 방수효과를 제공함은 물론, 건조 속도가 빠르고, 도료화가 용이하며, 특히 0.3mm 미만의 균열 부위에 우수한 특성이 있는 콘크리트 바닥 균열 보수용 무기질 바인더 및 이를 이용한 바닥 균열 보수방법에 관한 것이다.The present invention relates to an inorganic binder used as a bottom crack repairing agent for concrete bridges and the like. More particularly, the present invention relates to an inorganic binder which is improved in water resistance, provides excellent waterproofing effect, has a high drying speed and is easy to paint, The present invention relates to an inorganic binder for repairing cracks in a concrete floor having excellent properties in a crack region, and a floor crack repairing method using the binder.

일반적으로 교량은 콘크리트를 이용하여 시공되는데, 이러한 콘크리트 교량은 다양한 원인에 의해 균열이 발생할 수 있고, 발생된 균열은 콘크리트의 내구성, 강도, 수밀성 등을 저하시키고, 철근을 부식시키는 등, 교량의 안전성과 사용성에 큰 영향을 미친다. 따라서 균열의 발생 시, 균열의 원인을 규명하여 보수하여야 한다.Generally, bridges are constructed using concrete. Such concrete bridges can cause cracks due to various causes. Cracks generated can lower the durability, strength, water tightness, etc. of concrete, And usability. Therefore, when cracks occur, the causes of cracks should be identified and repaired.

종래 콘크리트 균열의 보수 방법으로는 폭 0.2mm 이상의 균열에 무기계 또는 유기계 주입재를 주입압에 의하여 주입하는 주입 공법, 5mm 이상의 폭이 넓은 균열에 충전재를 충전하는 충전 공법, 폭 0.2mm 이하의 미세한 균열에 대하여 개별적으로 처리하지 않고 전체적으로 피복 하는 피복 공법, 콘크리트 표면에 전체적으로 에폭시 수지 등을 도포하여 균열에 함침시키는 함침 공법 등이 있다.Conventional methods of repairing concrete cracks include an injection method in which an inorganic or organic filler is injected into a crack having a width of 0.2 mm or more, a filling method in which a filler is filled in a wide crack having a width of 5 mm or more, A coating method in which the entire surface is coated without being treated individually, and an impregnation method in which an epoxy resin or the like is applied to the surface of the concrete as a whole to impregnate the surface with cracks.

특히 0.3mm 미만의 균열 부위에 대해서는 균열보수제를 도포하여 균열 부위에 도포막을 형성하는 형태로 보수하는 것이 바람직한데, 내수성이 높고, 방수성이 탁월하며, 건조속도가 빠르고, 도료화가 용이한 균열보수제에 관한 기술이 부족한 것이 현실이다.Particularly, it is preferable to repair the crack region less than 0.3 mm by applying a crack repair agent to form a coating film on the crack region. It is preferable that the crack repair agent having a high water resistance, excellent waterproof property, It is a reality that there is a lack of technology.

콘크리트 교량의 균열 부위 보수에 관한 종래의 기술로, 등록특허 제10-1112179호 (2012년01월27일)(이하 종래기술) 등이 있는데, 종래기술은 MMA 수지(Resin) 및 MMA 모르타르(Mortar)를 사용함으로써, 속경성으로 인한 신속한 보수, 고탄성 및 고강도 특성을 통한 균열확대 방지를 제공할 수 있는 콘크리트 바닥의 비구조적 균열 보수 공법을 제시하고 있다.Conventional techniques for repairing cracks in concrete bridges are disclosed in Japanese Patent Registration No. 10-1112179 filed on Jan. 27, 2012 (hereinafter referred to as "prior art"). MMA resin (Resin) and MMA mortar ), The unstructured crack repair method of the concrete floor that can provide quick repair, high elasticity, and prevention of crack expansion through high strength characteristics is suggested.

그러나 종래기술은 0.3mm 미만의 균열 부위에 시공할 때, 본 발명에 비해 상대적으로 내수성, 방수성, 건조성이 떨어지고, 도료화가 어렵다는 단점이 있다.However, the conventional art has a disadvantage in that when applied to a crack region of less than 0.3 mm, the water resistance, waterproofness and dryness are relatively lower than those of the present invention, and it is difficult to paint.

본 발명은 상기 문제점을 해결하기 위해 안출된 것으로, 내수성이 강화되고 우수한 방수효과를 제공함은 물론, 건조 속도가 빠르고, 도료화가 용이하며, 특히 0.3mm 미만의 균열 부위에 우수한 특성이 있는 콘크리트 바닥 균열 보수용 무기질 바인더 및 이를 이용한 바닥 균열 보수방법을 제공하는 것을 목적으로 한다.The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide a concrete floor crack having a high water resistance, a good waterproof effect, a high drying speed, And an object of the present invention is to provide a repairable inorganic binder and a floor crack repairing method using the same.

보다 구체적으로, 본 발명은 액상규산염 바인더의 취약한 내수성 결함을 해결하는 동시에 표면강도 및 도포막의 유연성을 증가시킴으로써 우수한 방수효과는 물론 건조 속도가 빠르고 도료화가 용이한 무기질 바인더 및 이를 이용한 바닥 균열 보수방법을 제공하는 것을 목적으로 한다.More particularly, the present invention relates to an inorganic binder and a bottom crack repair method using the same, which solves the weak water-resistant defects of the liquid silicate binder and increases the surface strength and flexibility of the coated film, The purpose is to provide.

상기 과제의 해결을 위한 본 발명은 다음과 같은 구성, 단계 및 특징을 갖는다.The present invention for solving the above problems has the following configuration, steps and characteristics.

본 발명에 따른 무기질 바인더는, 액상규산염 100 중량부, 그리고 이온교환수 10 내지 20 중량부, 그리고 반응성실란 4 내지 10 중량부, 그리고 산화아연을 포함하는 경화제 1 내지 15 중량부, 그리고 실리카 5 내지 50 중량부, 그리고 액상습윤제 1 내지 5 중량부, 그리고 확산제 20 내지 50 중량부를 포함한다.The inorganic binder according to the present invention comprises 100 parts by weight of liquid silicate, 10 to 20 parts by weight of ion-exchanged water, 4 to 10 parts by weight of reactive silane, 1 to 15 parts by weight of a curing agent containing zinc oxide, 1 to 5 parts by weight of a liquid wetting agent, and 20 to 50 parts by weight of a dispersing agent.

또한 상기 액상규산염은 SiO2/Na2O의 몰 비가 2.8 ~ 3.4인 액상규산나트륨, SiO2/K2O의 몰 비가 3.2 ~ 3.6인 액상규산칼륨, SiO2/Li2O의 몰 비가 5.1 ~ 8.0인 액상규산리튬 중 일 이상을 포함할 수 있음을 특징으로 한다.In addition, the liquid silicate SiO 2 / Na 2 O molar ratio of 2.8 ~ 3.4 in liquid sodium silicate, SiO 2 / K 2 O molar ratio of 3.2 ~ 3.6 in liquid potassium silicate, SiO 2 / Li 2 O molar ratio of 5.1 ~ of the 8.0 < / RTI > of liquid lithium silicate.

아울러 본 발명에 따른 바닥 균열 보수방법은, 상기 액상규산염에 이온교환수를 투입하고 교반한 후, 상기 반응성실란을 첨가하여 가수분해 될 때까지 교반한 다음, 경화제, 실리카, 액상습윤제 및 확산제를 투입하여 도료화한 후, 숙성 및 점도 조절을 거쳐 균열보수제를 얻는 단계, 그리고 보수하고자 하는 콘크리트 바닥의 균열 부위를 커팅 및 청소하는 단계, 그리고 상기 균열보수제를 상기 균열 부위에 도포하는 단계, 그리고 상기 균열보수제가 도포된 상기 균열 부위를 마감 처리하는 단계를 포함한다.In addition, the bottom crack repairing method according to the present invention is characterized in that the ion-exchanged water is added to the liquid silicate and stirred, the reactive silane is added to the liquid silicate, stirred until hydrolysis, and then the hardener, silica, A step of preparing a coating material, a step of preparing a coating material, a step of preparing a coating material by aging and viscosity control, a step of cutting and cleaning a crack part of a concrete floor to be repaired, And finishing the cracked portion to which the crack repairing agent has been applied.

또한 상기 균열보수제가 도포된 상기 균열 부위를 마감 처리하는 단계는, 상기 균열 부위에 코팅제를 도포한 후 경화시켜, 코팅층을 형성하는 단계를 포함하고, 상기 코팅제는, 바인더 수지 100중량부, 이소시아네이트 프리폴리머(Isocyanate prepolymer) 1 내지 10 중량부, 폴리에스테르 아크릴레이트(Polyester acrylate) 1 내지 30 중량부, 메틸 아세테이트(Methyl acetate) 30 내지 60 중량부, 아조비스 이소부틸니트릴(Azobis isobutyronitrile) 0.5 내지 5 중량부, 수산화 알루미늄(Aluminum hydroxide) 5 내지 15 중량부, 디메틸아날린(Dimethylaniline) 1 내지 5 중량부 및 테트라에톡시실란(Tetraethoxysilane) 0.5 내지 2.5 중량부를 포함할 수 있음을 특징으로 한다.The step of finishing the cracked portion coated with the crack repairing agent may include coating a coating agent on the cracked portion, and then curing the coated portion to form a coating layer. The coating agent may include 100 parts by weight of a binder resin, 100 parts by weight of an isocyanate prepolymer 1 to 10 parts by weight of an isocyanate prepolymer, 1 to 30 parts by weight of a polyester acrylate, 30 to 60 parts by weight of methyl acetate, and 0.5 to 5 parts by weight of azobis isobutyronitrile 5 to 15 parts by weight of aluminum hydroxide, 1 to 5 parts by weight of dimethylaniline, and 0.5 to 2.5 parts by weight of tetraethoxysilane.

상기 구성, 단계 및 특징을 포함하는 본 발명은 액상규산염 바인더의 취약한 내수성 결함을 해결하는 동시에 표면강도 및 도포막의 유연성을 증가시킴으로써 우수한 방수효과는 물론 건조 속도가 빠르고 도료화가 용이하다는 장점을 갖는다.The present invention including the above-described constitution, steps and features has the advantages of solving the weak water-resistant defects of the liquid silicate binder and increasing the surface strength and the flexibility of the coating film, thereby providing an excellent waterproof effect,

또한 경화과정 및 시간의 경과에 따른 균열 및 습기에 의한 표면 오염 등의 문제점을 효과적으로 개선하였고, 친환경적이며, 우수한 내구성을 갖고, 정전기, 미세먼지 등에 의한 오염 방지 효과가 탁월하다.It also effectively solves problems such as curing process and surface contamination due to cracks and moisture as time elapses, is eco-friendly, has excellent durability, and is excellent in prevention of contamination by static electricity and fine dust.

본 발명은 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있는 바, 구현예(態樣, aspect)(또는 실시예)들을 본문에 상세하게 설명하고자 한다. 그러나 이는 본 발명을 특정한 개시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

본 명세서에서 사용한 용어는 단지 특정한 구현예(태양, 態樣, aspect)(또는 실시예)를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 본 출원에서, ~포함하다~ 또는 ~이루어진다~ 등의 용어는 명세서 상에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다.The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가지고 있다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥 상 가지는 의미와 일치하는 의미를 가지는 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

본 명세서에서 기재한 ~제1~, ~제2~ 등은 서로 다른 구성 요소들임을 구분하기 위해서 지칭할 것일 뿐, 제조된 순서에 구애받지 않는 것이며, 발명의 상세한 설명과 청구범위에서 그 명칭이 일치하지 않을 수 있다.It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

본 발명은 콘크리트 교량 등의 바닥 균열 보수제로 사용되는 무기질 바인더에 관한 것으로, 특히 내수성이 강화되고 우수한 방수효과를 제공함은 물론, 건조 속도가 빠르고, 도료화가 용이하며, 특히 0.3mm 미만의 균열 부위에 우수한 특성이 있는 콘크리트 바닥 균열 보수용 무기질 바인더 및 이를 이용한 바닥 균열 보수방법에 관한 것이다.The present invention relates to an inorganic binder used as a bottom crack repairing agent for concrete bridges and the like. In particular, the present invention provides an inorganic binder having enhanced water resistance, excellent waterproofing effect, fast drying speed, The present invention relates to an inorganic binder for repairing cracks in a concrete floor having excellent properties and a floor crack repairing method using the binder.

이하 첨부된 도면을 참고하여 본 발명에 따른 콘크리트 바닥 균열 보수용 무기질 바인더(이하 본 바인더) 및 이를 이용한 바닥 균열 보수방법(이하 본 방법)에 대해 상세하게 설명하기로 한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an inorganic binder (hereinafter, referred to as binder) and a bottom crack repairing method using the same will be described in detail with reference to the accompanying drawings.

본 바인더는 콘크리트 바닥의 균열 부위를 보수하는데 탁월한 균열보수제를 구성하는 바인더로, 액상규산염 100 중량부, 이온교환수 10 내지 20 중량부, 반응성실란 4 내지 10 중량부, 산화아연을 포함하는 경화제 1 내지 15 중량부, 실리카 5 내지 50 중량부, 액상습윤제 1 내지 5 중량부 및 확산제 20 내지 50 중량부를 포함한다.The binder is a binder which constitutes an excellent crack repairing agent for repairing a cracked portion of a concrete floor. The binder contains 100 parts by weight of liquid silicate, 10 to 20 parts by weight of ion exchange water, 4 to 10 parts by weight of reactive silane, To 15 parts by weight of silica, 5 to 50 parts by weight of silica, 1 to 5 parts by weight of a liquid wetting agent and 20 to 50 parts by weight of a dispersing agent.

각 구성 별로, 액상규산염은 내수성 강화를 위해 포함되며, 액상규산나트륨, 액상규산칼륨이나 액상규산리튬 중 일 이상이 사용될 수 있다.For each constitution, the liquid silicate is included for water resistance enhancement, and one or more of liquid sodium silicate, liquid potassium silicate or liquid sodium silicate may be used.

액상규산나트륨의 경우 SiO2/Na2O의 몰 비가 2.8 ~ 3.4인 것이 사용될 수 있고, 액상규산칼륨의 경우 SiO2/K2O의 몰 비가 3.2 ~ 3.6인 것이 사용될 수 있으며, 액상규산리튬의 경우 SiO2/Li2O의 몰 비가 5.1 ~ 8.0인 것이 사용될 수 있다.In the case of liquid sodium silicate, the molar ratio of SiO 2 / Na 2 O may be 2.8 to 3.4, and in the case of liquid potassium silicate, the molar ratio of SiO 2 / K 2 O may be 3.2 to 3.6. The molar ratio of SiO 2 / Li 2 O of 5.1 to 8.0 can be used.

이러한 액상규산염은 본 바인더 전체 대비 20 내지 50 중량%가 사용되는 것이 바람직하다.The liquid silicate is preferably used in an amount of 20 to 50% by weight based on the total binder.

다음으로, 이온교환수는 본 바인더의 점도 조절용으로 사용되는데, 바람직하게는 액상규산염 100 중량부 대비 10 내지 20 중량부가 사용될 수 있다.Next, the ion-exchanged water is used for controlling the viscosity of the binder, preferably 10 to 20 parts by weight based on 100 parts by weight of the liquid silicate.

다음으로, 반응성실란은 본 바인더의 반응성, 특히 액상규산염의 반응성을 향상시키기 위해 사용되며, 메틸트리메톡시실란(methyltrimethoysilane), 메틸트리에톡시실란(methyltriethoysilane), 트리에톡시비닐실란(triethoyvinylsilane), 디페닐디메톡시실란(diphenylimethoysilane), 트리에톡시실란(triethoysilane)중 일 이상이 사용될 수 있다.Next, the reactive silane is used to improve the reactivity of the binder, in particular, the reactivity of the liquid silicate, and includes methyltrimethoxysilane, methyltriethoysilane, triethoyvinylsilane, Diphenyl dimethoxysilane, and triethoxysilane may be used.

이러한 반응성 실란은 액상규산염 100 중량부 대비 4 내지 10 중량부가 사용될 수 있는데, 4 중량부 미만으로 사용되는 경우 구성물 간의 반응성이 저하되고, 10 중량부를 초과하여 사용되는 경우 본 바인더의 경화 후 표면강도가 저하된다.The reactive silane may be used in an amount of 4 to 10 parts by weight based on 100 parts by weight of the liquid silicate. If the reactive silane is used in an amount of less than 4 parts by weight, the reactivity between components deteriorates. If the reactive silane is used in an amount exceeding 10 parts by weight, .

다음으로, 경화제는 본 바인더의 경화를 빠르게 하여 건조 속도를 향상시키기 위해 첨가되며, 특히 경화제로는 산화아연이 사용되는 것이 바람직한데, 산화아연은 규산염과 쉽게 친화하여 도막의 경도 등을 향상시키며 대기 중의 이산화탄소를 쉽게 포집하여 도막이 빨리 건조되게 하는 보조 역할을 하여 완전한 수분제거에 도움을 주며 아연이온으로 철강재 등의 금속표면에 적용 시 아연상 피막이 형성되어 수분에 의한 피도물의 부식방지 즉 방청효과 및 전반적인 내수성을 증진시킨다.Next, the curing agent is added to accelerate the curing of the binder to improve the drying speed. In particular, zinc oxide is preferably used as the curing agent. The zinc oxide is easily ameliorated by the silicate to improve the hardness of the coating film, It helps to remove moisture completely by helping to capture the carbon dioxide easily and helps to dry the coating quickly. When zinc ion is applied to the surface of metal such as steel, zinc oxide film is formed and corrosion prevention of anti- Increase water resistance.

이러한 경화제는 액상규산염 100 중량부 대비 1 내지 15 중량부가 사용되는 것이 바람직하다.The curing agent is preferably used in an amount of 1 to 15 parts by weight based on 100 parts by weight of the liquid silicate.

다음으로, 실리카는 내열성, 내약품성, 내화학성 향상을 위해 첨가되는 기능성 첨가제로, 액상규산염 100 중량부 대비 5 내지 50 중량부가 사용되는 것이 바람직하며, 5 중량부 미만으로 사용될 경우 그 효과가 미미하고, 50 중량부를 초과하여 사용되는 경우 점도 상승에 의한 유동성이 저하된다.Next, silica is a functional additive added to improve heat resistance, chemical resistance, and chemical resistance, and is preferably used in an amount of 5 to 50 parts by weight, based on 100 parts by weight of the liquid silicate. When the amount is less than 5 parts by weight, the effect is insignificant , And when it is used in an amount exceeding 50 parts by weight, the fluidity due to viscosity increase is lowered.

다음으로 ,액상습윤제는 분산성 향상을 위해 사용되며, 액상 소포제와 분산제로 구성될 수 있다.Next, the liquid wetting agent is used for improving the dispersibility and may be composed of a liquid defoaming agent and a dispersing agent.

이러한 액상습윤제는 액상규산염 100 중량부 대비 1 내지 5 중량부가 사용되는 것이 바람직하며, 1 중량부 미만으로 사용되는 경우 분산성이 저하되고, 5 중량부를 초과하여 사용되는 경우 본 바인더의 치밀도가 저하된다.The liquid wetting agent is preferably used in an amount of 1 to 5 parts by weight based on 100 parts by weight of the liquid silicate. When the amount of the liquid wetting agent is less than 1 part by weight, the dispersibility of the liquid wetting agent is lowered. When the amount of the wetting agent is more than 5 parts by weight, do.

다음으로, 확산제는 반응성 향상은 물론 액상규산염의 취약한 내수성 해결과 동시에 본 바인더의 유연성을 증가시키기 위해 첨가되며, 실리콘고무, 불소수지, 폴리스티렌, 폴리아크릭, 폴리설폰비드 중 일 이상, 그리고 알루미나졸 또는 실리카졸, 그리고 1,3,5-트리메틸-1,3,5-트리스(3,3,3-트리플로로프로필)-싸이크로트리사이록산의 혼합물이 사용될 수 있다.Next, the diffusing agent is added to improve the reactivity, as well as to solve the weak water resistance of the liquid silicate and at the same time to increase the flexibility of the binder, and at least one of silicone rubber, fluororesin, polystyrene, polyacrylic, polysulfone beads, Or a mixture of silica sol and 1,3,5-trimethyl-1,3,5-tris (3,3,3-trifluoropropyl) -cyclotrisilicoxane can be used.

이러한 확산제는 액상규산염 100 중량부 대비 20 내지 50 중량부가 사용되는 것이 바람직한데, 20 중량부 미만으로 사용되는 경우 효과가 미미하고, 50 중량부를 초과하여 사용되는 경우 점도의 급상승에 따른 유동성 저하가 발생한다.The amount of the dispersing agent is preferably 20 to 50 parts by weight based on 100 parts by weight of the liquid silicate. When the amount is less than 20 parts by weight, the effect is insignificant. When the amount is more than 50 parts by weight, Occurs.

한편, 상기 본 바인더를 이용한 바닥 균열 보수방법(본 방법)은 다음과 같은 단계를 포함한다.On the other hand, the bottom crack repairing method (the present method) using the present binder includes the following steps.

본 방법은 크게 균열보수제를 얻는 제1단계, 균열 부위를 클리닝하는 제2단계, 균열보수제를 도포하는 제3단계 및 균열 부위를 마감 처리하는 제4단계를 포함한다.The method largely includes a first step of obtaining a crack repair agent, a second step of cleaning the cracked portion, a third step of applying a crack repairing agent, and a fourth step of finishing the cracked portion.

각 단계 별로, 먼저 제1단계는 상기 본 바인더를 이용하여 균열보수제를 생성하는 단계로, 액상규산염에 이온교환수를 투입하고 교반한 후, 반응성실란을 첨가하여 가수분해 될 때까지 교반한 다음, 경화제, 실리카, 액상습윤제 및 확산제를 투입하여 도료화한 후, 숙성 및 점도 조절을 거쳐 균열보수제를 얻는 단계이다.In each step, the first step is a step of producing a crack repair agent using the binder of the present invention. The ion-exchange water is added to the liquid silicate and stirred. Then, the reactive silane is added and stirred until hydrolysis, Silica, a liquid wetting agent and a dispersing agent to prepare a coating material, followed by aging and viscosity control to obtain a crack repairing agent.

이 단계에서 균열보수제에는 안료, 충진제 등이 더 포함될 수 있다. 교반 조건, 교반 시간, 사용되는 도구 등, 구체적인 균열보수제의 획득 방법은 종래의 기술 및 통상의 기술자의 일반 상식을 따른다.At this stage, the crack repair agent may further include pigments, fillers, and the like. The method of obtaining a concrete crack repair agent such as stirring conditions, stirring time, tools to be used and the like follows the conventional art and the common sense of the ordinary artisan.

다음으로, 제2단계는 균열보수제의 균열 부위에 대한 안정된 정착을 위해 균열 부위를 커팅 및 청소하는 단계로, 보수하고자 하는 콘크리트 바닥의 균열 부위를 커팅 및 청소하는 단계에 해당한다. 균열 부위의 커팅은 통상의 커팅 장치에 의해 이루어질 수 있으며, 커팅 후 균열 부위에 잔존하는 이물질이 없도록 깨끗하게 청소되어야 하며, 건식 및 습식 클리닝 중 실시자의 선택에 따라 결정될 수 있다.Next, the second step is a step of cutting and cleaning the cracked portion for stable fixing to the cracked portion of the crack repairing agent, and cutting and cleaning the cracked portion of the concrete floor to be repaired. The cutting of the cracked portion may be performed by a conventional cutting device, and it should be cleanly cleaned so that there is no foreign matter remaining on the cracked portion after cutting and can be determined according to the choice of the operator during dry and wet cleaning.

다음으로, 제3단계는 제1단계에서 획득한 균열보수제를 제2단계에서 클리닝된 균열 부위에 도포하는 단계로, 이 때 균열보수제의 도포는 소정의 도포 장치가 활용되는 것이 바람직하다.Next, in the third step, the crack repairing agent obtained in the first step is applied to the cracks cleared in the second step. Preferably, the application of the crack repairing agent is performed by a predetermined application apparatus.

디음으로, 제4단계는 균열보수제가 도포된 균열 부위를 마감 처리하는 단계로, 이 제4단계는 마감 처리에 관한 종합적인 과정들을 모두 포함하며, 그 예로, 균열보수제의 경화 및 양생, 다짐, 표면 처리, 마감재의 도포, 후술하는 코팅층의 형성 등을 포함할 수 있다.The fourth step is a step of finishing the cracked portion to which the crack repairing agent is applied. The fourth step includes all the processes related to the finishing treatment. For example, the curing and curing of the crack repairing agent, compaction, Surface treatment, application of a finishing material, formation of a coating layer to be described later, and the like.

이하 상기 본 바인더의 실시예를 통해 본 발명의 효과를 설명하기로 한다.Hereinafter, effects of the present invention will be described with reference to examples of the present binder.

[실시예1][Example 1]

액상규산염(액상규산나트륨 350g와 액상규산리튬 100g)과, 이온교환수 100g을 교반기에 투입하고 1시간 동안 충분히 교반한 후, 교반기에 반응성실란(트리에톡시실란) 35g을 첨가하여 10분동안 교반한다. 이 후 교반기에 경화제(산화아연) 85g, 확산제(불소수지 100g, 알루미나졸 100g, 1,3,5-트리메틸-1,3,5-트리스(3,3,3-트리플로로프로필)-싸이크로트리사이록산 50g) 250g를 투입하여 30분동안 교반 밀링한 다음, 액상습윤제 25g를 투입하여 교반함으로써, 무기질 바인더(균열보수제) 1kg을 제조하였다.35 g of reactive silane (triethoxysilane) was added to the agitator, and the mixture was stirred for 10 minutes. The liquid silicate (350 g of liquid sodium silicate and 100 g of liquid lithium silicate) and 100 g of ion- do. Thereafter, 85 g of a curing agent (zinc oxide) and 100 g of a dispersing agent (100 g of fluororesin, 100 g of alumina sol, 1,3,5-trimethyl-1,3,5-tris (3,3,3- 250 g of cyclotrisilicone (50 g) was added thereto, and the mixture was stirred and milled for 30 minutes. Then, 25 g of a liquid wetting agent was added and stirred to prepare 1 kg of an inorganic binder (crack repairing agent).

상기에서 제조된 균열보수제를 시험용 블록(콘크리트로 제조)에 도포한 후, 이하의 조건에 따라 세척성, 내오염성, 내염기성, 내염수성, 건조성 등을 측정하였다.After the above-prepared crack repairing agent was applied to a test block (made of concrete), the washability, stain resistance, basicity, flame resistance and dryness were measured according to the following conditions.

[실시예1-1] 내세척성 시험 [Example 1-1] Washing resistance test

KS M 5000 3351의 에멀젼합성수지 내부용 기준에 의하여 왕복 마모 회수 측정시험 하였고, 그 결과 2500회 이상으로 우수함을 보였다.The reciprocating abrasion test was conducted by KS M 5000 3351 according to the standard for the emulsion synthetic resin. As a result, it was found to be more than 2500 times.

[실시예1-2] 내오염성 시험[Example 1-2] Pollution resistance test

석유계, 탄화물이 연소할 때 발생되는 그을음을 도포막 표면에 도포한 후 1일 방치한 다음 상온에서 흐르는 물로 시편 상의 오염 물질을 제거 후 도포막 표면에 대한 자정 능력 상태를 확인하는 시험을 하였고, 그 결과 흐르는 물에 자기 세정 기능이 우수함을 보였다.Petroleum, and soot generated on combustion of carbide were coated on the surface of the coating film, left for 1 day, and then the contaminants on the specimen were removed with water flowing at room temperature. Then, a test was performed to confirm the self- As a result, the self-cleaning function of flowing water was excellent.

[실시예1-3] 건조성 시험[Example 1-3] Drying test

건조성 지촉건조시간, 고화건조시간 및 완전건조시간을 각각 측정하되, 지촉건조 시간은 표면을 손으로 만져서 묻어나지 않을 때의 시간을 측정하고, 고화건조시간은 표면을 손으로 문질러도 묻어나지 않을 때의 시간을 측정하며, 완전건조시간은 표면을 물에 적신 솜으로 200회 이상 문질러 바인더가 묻어나지 않을 때의 시간을 각각 측정하였다.Drying time The drying time, solidification drying time and complete drying time are respectively measured. The touching time is measured by the time when the surface is not touched with the hand, and the solidifying time is the time when the surface is rubbed by hand The time for complete drying was measured by rubbing the surface of the surface with water soaked in water for 200 times or more.

그 결과, 지촉건조시간은 약 25분이었고, 고화건조시간은 약 100분이었으며, 완전건조시간은 약 62시간으로, 건조성 측면에서 우수함을 보였다.As a result, the tacking time was about 25 minutes, the hardening time was about 100 minutes, and the complete drying time was about 62 hours.

한편, 상기 본 방법에서, 바닥 부위는 상시 노출되어 있고, 특히 교량의 바닥은 차량 통행에 따른 마모, 충격 등이 상시 발생하기 때문에, 상기한 본 바인더(균열보수제)에 추가로 코팅층이 구비되는 것이 바람직하다.Meanwhile, in the above-described method, the bottom portion is always exposed, and in particular, the bottom of the bridge is always exposed to abrasion, impact and the like due to vehicle traffic, so that a coating layer is provided in addition to the binder desirable.

이에 본 발명은 상기한 본 방법의 제4단계에 코팅층을 형성하는 단계를 더 도입하였다. 즉, 본 방법은 균열보수제가 도포된 균열 부위를 마감 처리하는 제4단계가 균열 부위에 코팅제를 도포한 후 경화시켜, 코팅층을 형성하는 단계를 포함할 수 있음을 특징으로 한다.The present invention further introduces a step of forming a coating layer in the fourth step of the above-described method. That is, the method may include a fourth step of finishing the cracked portion to which the crack repairing agent is applied, and a step of applying a coating agent to the cracked portion and then curing the coated portion to form a coating layer.

이러한 코팅층은 충격에 의한 파손, 첨예 부위에 의한 자상 등을 방지함은 물론 향상된 난연성, 신속한 경화로 인한 향상된 제조성, 발수 처리를 통한 향상된 방수성을 제공한다.Such a coating layer not only prevents damage due to impact, prevents streaks due to sharp points, but also provides improved flame retardancy, improved composition due to rapid curing, and improved water resistance through water repellent treatment.

상기 효과를 제공하는 본 발명의 코팅제 조성물은, 바인더 수지 100 중량부, 이소시아네이트 프리폴리머(Isocyanate prepolymer) 1 내지 10 중량부, 폴리에스테르 아크릴레이트(Polyester acrylate) 1 내지 30 중량부, 메틸 아세테이트(Methyl acetate) 30 내지 60 중량부, 아조비스 이소부틸니트릴(Azobis isobutyronitrile) 0.5 내지 5 중량부, 수산화 알루미늄(Aluminum hydroxide) 5 내지 15 중량부, 디메틸아날린(Dimethylaniline) 1 내지 5 중량부 및, 테트라에톡시실란(Tetraethoxysilane) 0.5 내지 2.5 중량부를 포함한다.The coating composition of the present invention which provides the above-mentioned effect comprises 100 parts by weight of a binder resin, 1 to 10 parts by weight of an isocyanate prepolymer, 1 to 30 parts by weight of a polyester acrylate, 30 to 60 parts by weight of azobisisobutyronitrile, 0.5 to 5 parts by weight of azobis isobutyronitrile, 5 to 15 parts by weight of aluminum hydroxide, 1 to 5 parts by weight of dimethylaniline, 0.5 to 2.5 parts by weight of tetraethoxysilane.

각 구성 별로, 먼저 바인더 수지는 UV 경화형으로 이루어지는 것이 바람직하며, 그 종류가 특별히 한정되지 않는다.For each constitution, it is preferable that the binder resin is first made of UV curing type, and the kind thereof is not particularly limited.

다음으로, 이소시아네이트 프리폴리머(Isocyanate prepolymer)는 2개의 이소시아네이트기를 가지는 화합물을 이소시아누레이트 변성, 트리메티롤프로판(TMP) 변성, 비우렛(biuret) 변성 등의 방법으로 변성하여 얻을 수 있으며, 바인더 수지 100 중량부에 대해 1 내지 10 중량부가 사용되는 것이 바람직한데, 1 중량부 미만으로 사용되는 경우 가교성이 저하되며, 10 중량부를 초과하여 사용되는 경우 가교성이 과도하게 증가하여 코팅층의 표면이 거칠어지고, 크랙에 의한 파손 가능성이 높아지는 문제가 있다.Next, the isocyanate prepolymer can be obtained by modifying a compound having two isocyanate groups by a method such as isocyanurate denaturation, trimethylol propane (TMP) denaturation, biuret denaturation, etc., and the binder resin If it is used in an amount of less than 1 part by weight, the crosslinking property decreases. When the amount of the crosslinking agent is more than 10 parts by weight, the crosslinking property is excessively increased, There is a problem that the possibility of breakage due to cracking increases.

다음으로, 폴리에스테르 아크릴레이트(Polyester acrylate)는 상기한 이소시아네이트 프리폴리머와 함께 가교제로 사용되며, 바인더 수지 100 중량부에 대해 1 내지 30 중량부가 사용되는 것이 바람직한데, 1 중량부 미만으로 사용되는 경우 코팅층의 표면이 깨끗하게 형성되지 않으며, 30 중량부를 초과하여 사용되는 경우 역시 가교성이 과도하게 증가하여 코팅층의 표면이 거칠어지게 된다.Next, polyester acrylate is used as a crosslinking agent together with the above-mentioned isocyanate prepolymer. It is preferable that 1 to 30 parts by weight of the polyester acrylate is used relative to 100 parts by weight of the binder resin. When the amount is less than 1 part by weight, The surface of the coating layer is not cleanly formed, and when it is used in an amount exceeding 30 parts by weight, the crosslinking property is excessively increased and the surface of the coating layer becomes rough.

다음으로, 메틸 아세테이트(Methyl acetate)는 코팅제의 안정적인 상용성을 확보하고 용액 중합을 제공하는 유기용제로서 첨가되며, 바인더 수지 100 중량부에 대해 30 내지 60 중량부가 사용되는 것이 바람직한데, 30 중량부 미만으로 사용되는 경우 코팅제의 점도가 과도하게 높아지게 되어 흐름성이 나빠지고, 60 중량부를 초과하여 사용되는 경우 환경성이 저하되거나 심한 경우 환경 규제에 저촉되는 문제가 있다.Next, methyl acetate is added as an organic solvent which ensures stable compatibility of the coating agent and provides solution polymerization. It is preferable that 30 to 60 parts by weight of the methyl acetate is used relative to 100 parts by weight of the binder resin, and 30 parts by weight , The viscosity of the coating agent becomes excessively high to deteriorate the flowability. When the coating agent is used in an amount exceeding 60 parts by weight, there is a problem that the environmental property is deteriorated or the environment regulation is seriously deteriorated.

다음으로, 아조비스 이소부틸니트릴(Azobis isobutyronitrile)은 라디칼을 생성하는 개시제로서 사용되며, 바인더 수지 100 중량부에 대해 0.5 내지 5 중량부가 사용되는 것이 바람직한데, 0.5 중량부 미만으로 사용되는 경우 충분한 라디칼 이온을 발생시킬 수 없고, 5 중량부를 초과하여 사용되는 경우 과 생성된 라디칼 이온이 전체 중합도를 낮춰 물성이 저하되는 문제가 발생한다.Next, azobis isobutyronitrile is used as an initiator for radical generation. It is preferable that 0.5 to 5 parts by weight of the azobis isobutyronitrile is used relative to 100 parts by weight of the binder resin. When the amount is less than 0.5 parts by weight, sufficient radicals Ions can not be generated. When the amount is more than 5 parts by weight, there is a problem that the resulting radical ion lowers the total degree of polymerization and deteriorates the physical properties.

다음으로, 수산화 알루미늄(Aluminum hydroxide)은 코팅층이 연소되는 과정에서 특정 연소단계를 방해하기 위해 첨가되고, 바인더 수지 100 중량부에 대해 5 내지 15 중량부가 사용되는 것이 바람직한데, 5 중량부 미만으로 사용되는 경우 난연 효과가 미미하고, 15 중량부를 초과하여 사용되는 경우 난연 효과에 비해 경제성이 저하된다.Next, aluminum hydroxide is added in order to prevent a specific combustion step in the process of burning the coating layer, and it is preferable that 5 to 15 parts by weight is used for 100 parts by weight of the binder resin. , The flame retardant effect is insignificant, and when used in excess of 15 parts by weight, the economical efficiency is lowered compared with the flame retardant effect.

다음으로, 디메틸아날린(Dimethylaniline)은 상기한 아조비스 이소부틸니트릴의 라디칼 생성을 돕기 위해 첨가되며, 바인더 수지 100 중량부에 1 내지 5 중량부가 사용되는 것이 바람직한데, 1 중량부 미만으로 사용되는 경우 완전 경화가 되지 않고, 5 중량부를 초과하여 사용되는 경우 코팅층의 표면에 흑점이나 부식이 발생할 수 있다.Next, dimethylaniline is added to help radical generation of the azobisisobutylnitrile. It is preferable that 1 to 5 parts by weight of the dimethylaniline is used in 100 parts by weight of the binder resin, and less than 1 part by weight of the dimethylaniline is used It is not completely cured and when it is used in excess of 5 parts by weight, black spots or corrosion may occur on the surface of the coating layer.

다음으로, 테트라에톡시실란(Tetraethoxysilane)은 가수분해 축합되어 코팅층의 방수성 및 발수성을 부여하고 방부성을 향상시키기 위해 첨가되며, 바인더 수지 100 중량부에 대해 0.5 내지 2.5 중량부가 사용되는 것이 바람직한데, 0.5 중량부 미만으로 사용되는 경우 방수성, 발수성 및 방부성 향상 효과가 미미하며, 2.5 중량부를 초과하여 사용되는 경우 시공성이 저하되는 문제가 있다.Next, tetraethoxysilane is added to enhance the water repellency and water repellency of the coating layer by hydrolysis and condensation, and to improve the anticorrosive property. It is preferable that 0.5 to 2.5 parts by weight of the tetraethoxysilane is used in the range of 0.5 to 2.5 parts by weight based on 100 parts by weight of the binder resin. When used in an amount of less than 1 part by weight, the effect of improving waterproofness, water repellency and anticorrosion is insignificant, and when used in an amount exceeding 2.5 parts by weight, workability is lowered.

이하에서는 상기한 코팅제 조성물을 이용한 코팅층의 실시예를 소개하기로 한다.Hereinafter, embodiments of the coating layer using the coating composition will be described.

[실시예2][Example 2]

바인더 수지로, 에폭시 아크릴레이트 올리고머 1kg에, 이소시아네이트 프리폴리머 50g, 폴리에스테르 아크릴레이트 200g, 메틸 아세테이트 500g, 아조비스 이소부틸니트릴 30g, 수산화 알루미늄 100g, 디메틸아날린 30g, 테트라에톡시실란(Tetraethoxysilane) 20g을 혼합하여 1시간 정도 교반하여 코팅제 조성물을 제조하였다.As binder resin, 50 g of an isocyanate prepolymer, 200 g of polyester acrylate, 500 g of methyl acetate, 30 g of azobisisobutylnitrile, 100 g of aluminum hydroxide, 30 g of dimethylaniline and 20 g of tetraethoxysilane were added to 1 kg of epoxy acrylate oligomer And the mixture was stirred for about 1 hour to prepare a coating composition.

제조된 코팅제 조성물을 균열보수제가 도포된 시험용 블록의 도포막 상에 도포한 후, 완전 경화하는 단계를 거쳐 도포막 상부에 코팅층을 형성하였다.The prepared coating composition was coated on a coating film of a test block coated with a repairing agent and then completely cured to form a coating layer on the coating film.

[실시예2-1][Example 2-1]

이 후 코팅층을 불규칙한 돌출부위를 갖는 스크래처를 통해 긁는 실험과 스크래처를 코팅층에 10회 반복하여 내려치는 실험을 수행한 결과, 스크래치 및 코팅층의 함몰이 발생하지 않았다.Thereafter, the coating layer was scratched through a scratcher having irregular protruding portions and the scratches were repeatedly applied to the coating layer ten times. As a result, scratches and depression of the coating layer did not occur.

[실시예2-2][Example 2-2]

또한 코팅층에 토치를 통해 10분간 화염을 직접 분사하는 실험을 수행한 결과, 약간의 그을음은 발생하였으나 코팅층이 전혀 연소되지 않았다.Also, as a result of direct spraying of the flame on the coating layer through the torch for 10 minutes, a little soot was generated but the coating layer was not burned at all.

[실시예2-3][Example 2-3]

또한 코팅층에 6시간 동안 물을 분사한 후, 코팅층을 제거하고 내부 침습도를 검사한 결과 습기가 전혀 검출되지 않았다.In addition, water was sprayed on the coating layer for 6 hours, and the coating layer was removed and the degree of internal penetration was examined. As a result, no moisture was detected.

상기 실시예들을 통해 본 발명에 따른 코팅층은 보호성, 난연성 및 방수성이 탁월하다는 것을 확인할 수 있다.It can be seen from the above examples that the coating layer according to the present invention is excellent in protection property, flame retardancy and waterproofness.

이상에서 첨부된 도면을 참조하여 설명한 본 발명은 통상의 기술자에 의하여 다양한 변형 및 변경이 가능하고, 이러한 변형 및 변경은 본 발명의 권리범위에 포함되는 것으로 해석되어야 한다.While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (4)

액상규산염 100 중량부, 이온교환수 10 내지 20 중량부, 반응성실란 4 내지 10 중량부, 산화아연을 포함하는 경화제 1 내지 15 중량부, 실리카 5 내지 50 중량부, 액상습윤제 1 내지 5 중량부 및 확산제 20 내지 50 중량부를 포함하는 콘크리트 바닥 균열 보수용 무기질 바인더를 이용한 바닥 균열 보수방법에 있어서,
상기 액상규산염에 이온교환수를 투입하고 교반한 후, 상기 반응성실란을 첨가하여 가수분해 될 때까지 교반한 다음, 경화제, 실리카, 액상습윤제 및 확산제를 투입하여 도료화한 후, 숙성 및 점도 조절을 거쳐 균열보수제를 얻는 단계;
보수하고자 하는 콘크리트 바닥의 균열 부위를 커팅 및 청소하는 단계;
상기 균열보수제를 상기 균열 부위에 도포하는 단계; 및
상기 균열보수제가 도포된 상기 균열 부위를 마감 처리하는 단계;
를 포함하고,
상기 균열보수제가 도포된 상기 균열 부위를 마감 처리하는 단계는,
상기 균열 부위에 코팅제를 도포한 후 경화시켜, 코팅층을 형성하는 단계를 포함하고,
상기 코팅제는, 바인더 수지 100중량부, 이소시아네이트 프리폴리머(Isocyanate prepolymer) 1 내지 10 중량부, 폴리에스테르 아크릴레이트(Polyester acrylate) 1 내지 30 중량부, 메틸 아세테이트(Methyl acetate) 30 내지 60 중량부, 아조비스 이소부틸니트릴(Azobis isobutyronitrile) 0.5 내지 5 중량부, 수산화 알루미늄(Aluminum hydroxide) 5 내지 15 중량부, 디메틸아날린(Dimethylaniline) 1 내지 5 중량부 및 테트라에톡시실란(Tetraethoxysilane) 0.5 내지 2.5 중량부를 포함하는 것을 특징으로 하는 바닥 균열 보수방법.
1 to 15 parts by weight of a curing agent containing zinc oxide, 5 to 50 parts by weight of a silica, 1 to 5 parts by weight of a liquid wetting agent and A floor crack repair method using an inorganic binder for repairing cracks in a concrete floor comprising 20 to 50 parts by weight of a diffusion agent,
After the ion-exchange water is added to the liquid silicate and stirred, the reactive silane is added and stirred until hydrolysis. Then, a hardener, silica, a liquid wetting agent and a dispersant are added to the mixture to form a coating, To obtain a crack repair agent;
Cutting and cleaning the cracked portion of the concrete floor to be repaired;
Applying the crack repair agent to the crack region; And
Finishing the cracked portion to which the crack repairing agent is applied;
Lt; / RTI >
Wherein the step of finishing the cracked portion coated with the crack repairing agent comprises:
Applying a coating agent to the cracked portion and then curing the coated portion to form a coating layer,
The coating agent may contain 100 parts by weight of a binder resin, 1 to 10 parts by weight of an isocyanate prepolymer, 1 to 30 parts by weight of a polyester acrylate, 30 to 60 parts by weight of methyl acetate, 0.5 to 5 parts by weight of azobisisobutyronitrile, 5 to 15 parts by weight of aluminum hydroxide, 1 to 5 parts by weight of dimethylaniline and 0.5 to 2.5 parts by weight of tetraethoxysilane Wherein the bottom crack is formed on the bottom surface.
청구항 1에 있어서,
상기 액상규산염은,
SiO2/Na2O의 몰 비가 2.8 ~ 3.4인 액상규산나트륨, SiO2/K2O의 몰 비가 3.2 ~ 3.6인 액상규산칼륨, SiO2/Li2O의 몰 비가 5.1 ~ 8.0인 액상규산리튬 중 일 이상을 포함하는 것을 특징으로 하는 바닥 균열 보수방법.
The method according to claim 1,
The liquid silicate,
A liquid sodium silicate having a molar ratio of SiO 2 / Na 2 O of 2.8 to 3.4, a liquid potassium silicate having a molar ratio of SiO 2 / K 2 O of 3.2 to 3.6, and a liquid lithium silicate having a molar ratio of SiO 2 / Li 2 O of 5.1 to 8.0 Wherein said bottom crack repairing method comprises:
삭제delete 삭제delete
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102035720B1 (en) * 2018-11-12 2019-10-23 한국철도기술연구원 Liquid-type inorganic composition for protecting or repairing the surface of concrete ties and method of protecting or repairing the concrete ties using the same
KR102084603B1 (en) * 2019-08-20 2020-03-04 주식회사 명진화학 Repair method of concrete structure to form matrix strengthening layer and crack protection layer using permeable surface strengthening agent and coating agent
KR102184164B1 (en) * 2020-02-17 2020-12-08 주식회사 화천개발상사 Concrete section recovery and concrete surface repair method using inorganic sodium silicate which can heal self
KR20230012246A (en) 2021-07-15 2023-01-26 김진아 Reinforce method for crack repair of concrete base

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005015307A (en) * 2003-06-27 2005-01-20 Kansai Paint Co Ltd Coating method of concrete
KR101267433B1 (en) * 2012-10-19 2013-05-30 (주) 인택산업 Water proofing and floor construction method on concrete using eco-friendly materials
KR101337346B1 (en) * 2013-07-03 2013-12-06 김영기 Flooring coating composition for concreate structure, method of manufacturing theirof and flooring coating method
KR101740500B1 (en) * 2016-11-18 2017-06-07 주식회사 드림인테크 Repair filler for concrete structures having excellent chemical resistance and its repair method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005015307A (en) * 2003-06-27 2005-01-20 Kansai Paint Co Ltd Coating method of concrete
KR101267433B1 (en) * 2012-10-19 2013-05-30 (주) 인택산업 Water proofing and floor construction method on concrete using eco-friendly materials
KR101337346B1 (en) * 2013-07-03 2013-12-06 김영기 Flooring coating composition for concreate structure, method of manufacturing theirof and flooring coating method
KR101740500B1 (en) * 2016-11-18 2017-06-07 주식회사 드림인테크 Repair filler for concrete structures having excellent chemical resistance and its repair method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102035720B1 (en) * 2018-11-12 2019-10-23 한국철도기술연구원 Liquid-type inorganic composition for protecting or repairing the surface of concrete ties and method of protecting or repairing the concrete ties using the same
KR102084603B1 (en) * 2019-08-20 2020-03-04 주식회사 명진화학 Repair method of concrete structure to form matrix strengthening layer and crack protection layer using permeable surface strengthening agent and coating agent
KR102184164B1 (en) * 2020-02-17 2020-12-08 주식회사 화천개발상사 Concrete section recovery and concrete surface repair method using inorganic sodium silicate which can heal self
KR20230012246A (en) 2021-07-15 2023-01-26 김진아 Reinforce method for crack repair of concrete base

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