KR101067891B1 - Crack repairing composition of concrete structure using geopolymer - Google Patents
Crack repairing composition of concrete structure using geopolymer Download PDFInfo
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- KR101067891B1 KR101067891B1 KR1020110066587A KR20110066587A KR101067891B1 KR 101067891 B1 KR101067891 B1 KR 101067891B1 KR 1020110066587 A KR1020110066587 A KR 1020110066587A KR 20110066587 A KR20110066587 A KR 20110066587A KR 101067891 B1 KR101067891 B1 KR 101067891B1
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- 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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
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- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
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- 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
- C04B14/00—Use 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
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- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
본 발명은 콘크리트 구조물의 균열 보수에 있어 작업성이 우수하며 미세한 균열에도 용이하게 침투될 뿐만 아니라 지수성이 우수한 특성을 나타내는 지오폴리머계 콘크리트 구조물의 균열 보수보강재 조성물에 관한 것으로, 지오폴리머 70-90중량%, 고유동화제 3-8중량%, MgO 2-5중량%, 소포제 0.1-2중량%, 및 방수제 0.1-2중량%로 구성되는 분말상과, 물 1-20중량%, 가성 알칼리 1-10중량%, 규산염 30-70중량%, 실란 1-10중량%, 및 액상수지 5-30중량%의 액상으로 구성되는 본 발명의 콘크리트 구조물의 균열주입재 조성물은 물리적, 화학적인 환경조건에 의해 콘크리트 구조물에 발생한 균열의 보수를 위해 사용되며, 균열폭에 관계없이 구조물에 발생되는 모든 균열에 적용되며, 신/구 콘크리트의 접착력이 증대되고, 균열 보수 보강에 따른 내구성을 증진하며, 산업부산물을 주원료로 사용하므로 기존의 에폭시 주입 공법에 비해 원가가 저렴하다. 또한 본 발명의 지오폴리머계 균열주입재는 콘크리트와 본질적으로 동일한 물성을 구비하므로 건조수축이나 열팽창에 의한 부가적인 응력이나 균열의 발생이 없어 내구성이 증진되고, 화재 발생 시, 내화성능이 저하되지 않고, 취급이 용이하여 시공성이 우수한 장점이 있어 당 분야에서 유용하게 사용될 수 있을 것으로 기대된다.The present invention relates to a crack repair stiffener composition of a geopolymer-based concrete structure exhibiting excellent workability and easy penetration into fine cracks as well as excellent exponential properties in crack repair of concrete structures. Geopolymer 70-90 1% by weight of water, 1-20% by weight, caustic alkali, 1-% by weight, 3-8% by weight of high softening agent, 2-5% by weight of MgO, 0.1-2% by weight of antifoaming agent, and 0.1-2% by weight of waterproofing agent. The crack injection material composition of the concrete structure of the present invention composed of 10% by weight, 30-70% by weight silicate, 1-10% by weight of silane, and 5-30% by weight of the liquid resin may be formed by physical and chemical environmental conditions. Used for repairing cracks in structures, applied to all cracks in structures regardless of crack width, increases adhesion of new / old concrete, enhances durability by crack repair reinforcement, Because the main raw material used in the cost is cheaper compared to traditional epoxy injection method. In addition, since the geopolymer crack injection material of the present invention has essentially the same physical properties as concrete, there is no additional stress or cracking caused by dry shrinkage or thermal expansion, thereby improving durability, and in case of fire, fire resistance does not decrease. It is expected that it may be usefully used in the art because of its ease of handling and excellent workability.
Description
본 발명은 지오폴리머를 사용한 콘크리트 구조물의 균열 보수보강재 조성물에 관한 것으로, 보다 상세하게는 분말상으로 고로슬래그, 플라이애시, 메타카올린 등의 지오폴리머를 사용하고, 액상으로 MOH 형태의 가성 알칼리와 R2O·(n)SiO2 형태의 규산염을 알칼리 활성화제로 사용하며, 실란을 첨가하여 작업성이 우수하며 미세한 균열에도 용이하게 침투될 뿐만 아니라, 지수성이 우수하여 습윤면의 보수 보강에도 용이하게 적용가능한 콘크리트 구조물의 균열주입 재료에 관한 것이다.The present invention relates to a crack repair stiffener composition of a concrete structure using a geopolymer, and more specifically, using a geopolymer, such as blast furnace slag, fly ash, metakaolin in powder form, MOH type caustic alkali and R 2 in the liquid phase O. (n) SiO 2 type silicate is used as alkali activator, silane is added, it is excellent in workability and easily penetrates into minute cracks, and it is excellent in exponential property so that it is easily applied to repair and reinforcement of wet surface. It relates to crack injection materials of possible concrete structures.
콘크리트를 이용한 토목구조물은 국가의 기반시설물로서 국가경제에서 중요한 역할을 담당하고 있다. 따라서 이들 콘크리트 구조체는 장기간 유지, 관리가 가능하여야 한다. 그러나 이들 콘크리트 구조체는 열악한 물리적, 화학적인 환경조건에 의하여 시공 후 크고 작은 균열이 발생되며, 이로 인하여 목표연도의 중간기간에 대대적인 보수 또는 재시공이 불가피하여 경제적으로 막대한 손실을 초래하고 있다. Civil construction using concrete plays an important role in the national economy as a national infrastructure. Therefore, these concrete structures must be able to be maintained and managed for a long time. However, these concrete structures have large and small cracks after construction due to poor physical and chemical environmental conditions, which inevitably leads to significant economic loss due to the inevitable major repair or reconstruction in the middle of the target year.
콘크리트 구조물의 균열 보수를 위한 재료로 가장 많이 사용되고 있는 것은 합성수지계인 에폭시이다. 에폭시는 압축강도와 인장강도가 높고, 다양한 점도로 제작할 수 있으며, 강도가 조기에 발현되고 접착력이 우수하여 구조물의 균열 보수 및 보강재로 널리 이용되고 있다. The most widely used material for crack repair of concrete structures is epoxy resin. Epoxy has high compressive strength and tensile strength, can be manufactured with various viscosities, and is widely used as a crack repair and reinforcing material for structures because of its early strength and excellent adhesion.
그러나 에폭시는 시공 초기에는 큰 접착강도를 나타내지만, 건조에 의한 수축 및 열팽창 등 콘크리트와 이질적인 특성을 갖기 때문에 장기적으로는 접착 성능이 저하되어 신/구 콘크리트 접착면에서 탈락이 발생되는 문제점이 있다.However, epoxy exhibits a large adhesive strength at the beginning of construction, but has a heterogeneous property with concrete such as shrinkage and thermal expansion due to drying, and thus, in the long term, adhesive performance is deteriorated, resulting in a dropout in the new / old concrete bonding surface.
또한 취급이 다소 복잡하고 적절한 온도관리가 필요하며, 화재시 내화성능에 문제가 있고, 습윤면에서는 경화가 잘 되지 않아 부착력이 저하될 수 있으며, 콘크리트와 에폭시의 건조 수축율, 탄성계수, 열팽창계수 및 강도 등의 물성 차이로 인해서 부가적인 응력이나 균열이 발생할 수 있는 등의 문제가 있다. 또한, 단가가 비싸고 특정 에폭시의 경우에는 인체에 유해성을 줄 수도 있어 취급이 매우 까다로운 단점이 있다. In addition, handling is somewhat complicated and proper temperature management is required, and there is a problem in fire resistance in case of fire, and in case of wet surface, it is hard to be hardened, so adhesion strength may be reduced, and dry shrinkage rate, elastic modulus, thermal expansion coefficient and Due to the difference in physical properties such as strength, there is a problem that additional stress or cracking may occur. In addition, the unit price is expensive and in the case of a specific epoxy may be harmful to the human body has a very difficult disadvantage of handling.
한편, 종래에는 보통 포틀랜드 시멘트계를 균열주입재로 사용하고 있으나, 보통 포틀랜드 시멘트는 최대입경이 0.1㎜정도로 큰 편이기 때문에 보통 포틀랜드 시멘트를 사용하여 보수할 수 있는 균열에는 한계가 있다. On the other hand, conventionally, the Portland cement system is usually used as a crack injection material, but since Portland cement has a large maximum particle diameter of about 0.1 mm, cracks that can be repaired by using a normal Portland cement are limited.
즉, 암반이나 콘크리트 구조물의 균열 보수에 있어서, 균열폭과 주입가능한 주입재의 최대 입경 사이의 관계를 J. K. Michel은 주입재의 최대 입경이 균열폭의 1/3 이하가 되어야 한다고 제시하고 있으며, 이를 고려할 경우 보통 포틀랜드 시멘트를 이용해서 보수 가능한 균열의 최소 폭은 0.3㎜ 정도가 된다. In other words, the relationship between the crack width and the maximum particle diameter of the injectable injection material in the crack repair of rock or concrete structures, JK Michel suggests that the maximum particle diameter of the injection material should be less than one third of the crack width. The minimum width of cracks that can be repaired with cement is about 0.3 mm.
그러나, 통상적으로 보수를 필요로 하는 균열은 내구성 측면에서는 0.4㎜ 이상, 방수 측면에서는 0.2㎜ 이상의 경우가 일반적임을 고려할 경우, 종래의 보통 포틀랜드 시멘트계 균열주입재는 내구성 측면에서는 만족할지 모르지만 방수측면에서는 부적합한 문제점이 있다. However, considering that the cracks that require repair are generally 0.4 mm or more in terms of durability and 0.2 mm or more in terms of water resistance, conventional ordinary Portland cement-based crack injection materials may be satisfactory in terms of durability but are inadequate in terms of water resistance. There is this.
본 발명은 상기의 문제점을 해결하기 위한 것으로, 본 발명에서 해결하고자 하는 과제는 초미립자로 이루어진 지오폴리머 친환경 바인더를 포함하여, 균열폭에 관계없이 구조물에 발생되는 모든 균열에 적용되며, 신/구 콘크리트의 접착력이 증대되고, 균열 보수 보강에 따른 내구성을 증진하며, 재하자의 발생을 미연에 방지할 수 있도록 복원할 수 있는 지오폴리머를 함유하는 콘크리트 균열 주입재를 제공하는 것이다. The present invention is to solve the above problems, the problem to be solved in the present invention is applied to all cracks generated in the structure, regardless of crack width, including geopolymer eco-friendly binder consisting of ultra-fine particles, It is to provide a concrete crack injecting material containing a geopolymer that can increase the adhesive strength, enhance the durability due to crack repair reinforcement, and can be restored to prevent the occurrence of rework.
상기와 같은 과제를 해결하기 위하여,In order to solve the above problems,
본 발명은 지오폴리머 70-90중량%, 고유동화제 3-8중량%, MgO 2-5중량%, 소포제 0.1-2중량%, 및 방수제 0.1-2중량%로 구성되는 분말상과, 물 1-20중량%, 가성 알칼리 1-10중량%, 규산염 30-70중량%, 실란 1-10중량%, 및 액상수지 5-30중량%의 액상으로 구성되는 콘크리트 구조물의 균열주입재 조성물을 제공한다.The present invention is a powder form consisting of 70-90% by weight of the geopolymer, 3-8% by weight of the high fluidizing agent, 2-5% by weight of MgO, 0.1-2% by weight of the defoaming agent, and 0.1-2% by weight of the waterproofing agent, and water 1- It provides a crack injection material composition of a concrete structure consisting of 20% by weight, 1-10% by weight caustic alkali, 30-70% by weight silicate, 1-10% by weight silane, and 5-30% by weight liquid resin.
상기 분말상과 액상의 혼합비는 1:0.3~0.8인 것이 바람직하다.It is preferable that the mixing ratio of the said powder form and a liquid phase is 1: 0.3-0.8.
상기 지오폴리머는 고로슬래그, 플라이애시, 및 메타카올린으로 이루어진 군으로 1종 이상 선택되는 것이 바람직하다.The geopolymer is preferably selected from the group consisting of blast furnace slag, fly ash, and metakaolin.
상기 지오폴리머는 분말도 8,000㎠/g 이상인 것이 바람직하다.The geopolymer is preferably a powder of 8,000 cm 2 / g or more.
상기 가성 알칼리는 KOH, NaOH, 및 LiOH로 이루어진 군으로부터 1종 이상 선택되는 것이 바람직하다.Preferably, the caustic alkali is selected from the group consisting of KOH, NaOH, and LiOH.
상기 규산염은 리튬실리케이트, 소듐실리케이트, 및 포타슘실리케이트로 이루어진 군으로부터 1종 이상 선택되는 것이 바람직하다.The silicate is preferably selected from the group consisting of lithium silicate, sodium silicate, and potassium silicate.
상기 실란은 n-옥틸트리에톡시실란, n-옥틸에톡시실란, 이소옥틸메톡시실란, 및 아미노실란으로 이루어지는 군으로부터 1종 이상 선택되는 것이 바람직하다.The silane is preferably one or more selected from the group consisting of n-octyltriethoxysilane, n-octylethoxysilane, isooctylmethoxysilane, and aminosilane.
상기 액상수지는 SB(Styrene-Butadiene) 라텍스, PAE 에멀젼, EVA 에멀젼, 에폭시 수지, 아크릴 수지, 및 폴리에스터로 이루어지는 군으로부터 1종 이상 선택되는 것이 바람직하다.The liquid resin is preferably selected from the group consisting of SB (Styrene-Butadiene) latex, PAE emulsion, EVA emulsion, epoxy resin, acrylic resin, and polyester.
이와 같이 본 발명에 의한 지오폴리머계 균열주입재는 미세한 균열에도 용이하게 침투되고, 이를 통해 콘크리트 구조물의 균열을 보다 용이하게 보수, 보강할 수 있으며 산업부산물을 주원료로 사용하므로 기존의 에폭시 수지 주입 공법에 비해 원가가 저렴하여 원가절감에 유리하다. As described above, the geopolymer crack injection material according to the present invention is easily penetrated into fine cracks, and thus, the crack of the concrete structure can be more easily repaired and reinforced, and the industrial by-products are used as the main raw materials. Compared with the low cost, it is advantageous for cost reduction.
또한, 본 발명의 지오폴리머계 균열주입재는 콘크리트와 본질적으로 동일한 물성을 구비하므로 건조수축이나 열팽창에 의한 부가적인 응력이나 균열의 발생이 없어 내구성이 증진되고, 콘크리트 구조물과의 접착력 향상 및 그 접착 성능을 오랜 기간 유지할 수 있다.In addition, since the geopolymer crack injection material of the present invention has essentially the same physical properties as concrete, there is no additional stress or crack caused by dry shrinkage or thermal expansion, thereby improving durability, improving adhesion to the concrete structure, and its adhesion performance. You can keep it for a long time.
또한, 본 발명은 플라이애시를 주원료로 사용함으로써 화재 발생 시, 내화성능이 저하되지 않고, 취급이 용이하여 시공성이 우수한 장점이 있다. In addition, the present invention has the advantage that the fly ash is used as the main raw material, the fire resistance is not lowered at the time of fire occurrence, the handling is easy, and the workability is excellent.
또한, 본 발명은 우수한 보수/보강 효과를 구비하므로, 손상된 교량, 터널, 복개구조물 및 기타 토목건축용 철근콘크리트 구조물 균열에 대한 보수, 보강시 주입재료로 사용될 수 있다. In addition, the present invention has excellent repair / reinforcement effect, it can be used as the injection material when repairing and reinforcing cracks of damaged bridges, tunnels, covering structures and other reinforced concrete structures for civil construction.
이하, 본 발명을 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.
본 발명의 조성물은 지오폴리머 70-90중량%, 고유동화제 3-8중량%, MgO 2-5중량%, 소포제 0.1-2중량%, 및 방수제 0.1-2중량%로 구성되는 분말상과, 물 1-20중량%, 가성 알칼리 1-10중량%, 규산염 30-70중량%, 실란 1-10중량%, 및 액상수지 5-30중량%의 액상으로 구성됨으로써 주입성, 부착강도, 지수성 등이 향상된 균열 주입재 재료를 제조할 수 있다.The composition of the present invention is a powder form consisting of 70-90% by weight of the geopolymer, 3-8% by weight of the high fluidizing agent, 2-5% by weight of MgO, 0.1-2% by weight of the antifoaming agent, and 0.1-2% by weight of the waterproofing agent, and water 1-20% by weight, caustic alkali 1-10% by weight, silicate 30-70% by weight, silane 1-10% by weight, and 5-30% by weight of the liquid resin, so as to injectability, adhesion strength, index characteristics, etc. This improved crack injector material can be produced.
상기 균열주입재는 분말상과 액상으로 구분되며, 분말상은 지오폴리머, 고유동화제, MgO, 소포제, 방수제로 구성되며, 액상은 물, 가성알칼리, 규산염, 실란, 액상수지로 구성된다. 분말상과 액상의 사용비는 부피비로 1:0.3~0.8인 것이 바람직하다. 액상의 함량이 0.3 미만인 경우에는 고형분 함량이 너무 높기 때문에 균열에 주입하기 힘들고, 반응성이 낮아 강도발현이 느린 문제점이 있고, 0.8을 초과하는 경우에는 고형분 함량이 높아 균열 주입성은 양호하지만, 균열주입재의 강도가 낮게 발현되는 문제점이 있다.The crack injection material is divided into a powder phase and a liquid phase, and the powder phase is composed of a geopolymer, a high fluidizing agent, MgO, an antifoaming agent, a waterproofing agent, and the liquid phase is composed of water, caustic alkali, silicate, silane, and liquid resin. It is preferable that the use ratio of powder form and liquid phase is 1: 0.3-0.8 by volume ratio. If the liquid content is less than 0.3, it is difficult to inject into the crack because the solid content is too high, and there is a problem of slow strength expression due to the low reactivity, and if it exceeds 0.8, the crack injection property is good due to the high solid content, There is a problem that the intensity is expressed low.
상기 균열주입재 분말상으로 사용되는 고로슬래그, 플라이애시, 메타카올린 등의 지오폴리머는 화학적으로 silico-aluminates를 기본으로 하고 있으며 poly(sialate)라고 나타내기도 한다. Sialate는 silicon-oxo-aluminate의 약자로서 Mn-(SiO2)Z-AlO2n·wH2O, 여기서 M은 potassium, sodium 또는 calcium과 같은 양이온이고, n은 polycondensation의 정도이고, z는 1, 2, 또는 3이다. Geopolymers such as blast furnace slag, fly ash, metakaolin, etc., which are used in the form of crack injection material, are chemically based on silico-aluminates and are also referred to as poly (sialate). Sialate stands for silicon-oxo-aluminate M n- (SiO 2 ) Z -AlO 2 n · wH 2 O, where M is a cation such as potassium, sodium, or calcium, n is the degree of polycondensation, z is 1 , 2, or 3.
상기 지오폴리머는 시멘트와 비교하여 초기강도, 화학적 저항성, 동결 융해 저항성, 내열성 등이 우수한 재료로서 콘크리트 구조물의 균열보수재 조성물의 주성분으로 사용되었다. 지오폴리머는 분말도가 8,000cm2/g 이상이 것이 바람직하며, 8,000cm2/g 미만인 경우에는 0.2mm 이하의 균열폭으로의 주입이 힘든 문제점이 있다.The geopolymer was used as a main component of the crack repair material composition of the concrete structure as a material having excellent initial strength, chemical resistance, freeze-thaw resistance, heat resistance, and the like as compared with cement. The geopolymer preferably has a powder degree of 8,000 cm 2 / g or more, and less than 8,000 cm 2 / g has a problem in that injection into a crack width of 0.2 mm or less is difficult.
상기 지오폴리머는 분말상 중 70~90중량%로 함유되는데, 상기 함량이 70중량% 미만인 경우에는 물의 사용량이 높기 때문에 균열주입재의 부피가 감소하여 균열보수가 불량한 문제점이 있고, 90중량%를 초과하는 경우에는 분말상 성분의 사용량이 너무 높기 때문에 주입성이 불량한 문제점이 있다.The geopolymer is contained in 70 to 90% by weight of the powder phase, if the content is less than 70% by weight because of the high amount of water used has a problem of poor crack repair due to a decrease in the volume of the crack injection material, exceeding 90% by weight In this case, there is a problem that the injection property is poor because the amount of the powder component is too high.
상기 고유동화제는 지오폴리머 입자를 분산시켜 사용수량의 감소를 가능하게 하여, 강도를 증가시키고 경화시간을 단축시키는 역할을 하는 것으로, 멜라민계, 나프탈렌계, 폴리카르복시계, 리그노설페이트계가 사용되며, 상기 MgO는 균열 발생을 억제시킬 목적으로 첨가되었다. The high fluidizing agent disperses the geopolymer particles to enable a reduction in the amount of water used, and serves to increase the strength and shorten the curing time. Melamine-based, naphthalene-based, polycarboxy-clock and lignosulfate-based are used. The MgO was added to suppress cracking.
상기 고유동화제는 분말상 중 3~8중량%로 함유되는데, 상기 함량이 3중량% 미만인 경우에는 균열주입재의 유동성이 부족하여 주입이 불량한 문제점이 있고, 8중량%를 초과하는 경우에는 균열주입재의 유동성이 더 이상 향상되지 않고, 강도가 저하되는 문제점이 있다. 또한, 상기 MgO는 분말상 중 2~5중량%로 함유되는데, 상기 함량이 2중량% 미만인 경우에는 경화과정에서 균열주입재의 수축이 발생하기 때문에 균열의 충진성이 부족하여 주입효과가 떨어지는 문제점이 있고, 5중량%를 초과하는 경우에는 균열주입재의 팽창이 발생하는 문제점이 있다.
The high fluidizing agent is contained in 3 to 8% by weight of the powder phase, if the content is less than 3% by weight, there is a problem in that the injection is poor due to the lack of fluidity of the crack injection material, if the content exceeds 8% by weight of the crack injection material The fluidity no longer improves and there is a problem that the strength is lowered. In addition, the MgO is contained in a powder form of 2 to 5% by weight, when the content is less than 2% by weight because the shrinkage of the crack injection material occurs during the curing process, there is a problem that the filling effect of the crack is insufficient and the injection effect is low. If it exceeds 5% by weight, there is a problem that expansion of the crack injection material occurs.
상기 소포제는 계면의 표면장력을 낮춰 균열주입재에 연행된 공기포를 소멸시켜주는 작용을 하며, 상기 방수제는 지수성을 증진시키는 역할을 하는 것으로, 일반적인 시멘트 소포제 및 방수제로 사용되는 제품이 사용된다. The antifoaming agent serves to lower the surface tension of the interface to extinguish air bubbles entrained in the crack injection material, and the waterproofing agent serves to enhance the exponential property, and a product used as a general cement antifoaming agent and waterproofing agent is used.
상기 소포제는 분말상 중 0.1~2중량%로 함유되는데, 상기 함량이 0.1중량% 미만인 경우에는 소포효과가 너무 낮아 균열주입재에 공기량이 증가하는 문제점이 있고, 2중량%를 초과하는 경우에는 균열주입재의 소포효과가 더 이상 향상하지 못하는 문제점이 있다. 또한, 상기 방수제는 분말상 중 0.1~2중량%로 함유되는데, 상기 함량이 0.1중량% 미만인 경우에는 방수효과가 충분하지 못한 문제점이 있고, 2중량%를 초과하는 경우에는 지오폴리머의 수화반응을 지연시켜 강도발현이 충분하게 일어나지 못하게 하는 문제점이 있다.The antifoaming agent is contained in a powder form of 0.1 to 2% by weight, if the content is less than 0.1% by weight, the defoaming effect is too low, there is a problem that the air amount increases in the crack injection material, if the content exceeds 2% by weight of the crack injection material There is a problem that the defoaming effect no longer improves. In addition, the waterproofing agent is contained in the powder phase of 0.1 to 2% by weight, when the content is less than 0.1% by weight there is a problem that the waterproof effect is not sufficient, when the content exceeds 2% by weight delay the hydration reaction of the geopolymer There is a problem that the strength expression does not occur sufficiently.
상기 균열주입재의 액상으로 알칼리 활성화제를 포함할 수 있는데 알칼리 활성화제는 MOH 형태의 가성 알칼리(caustic alkalis) 및 R2O·(n)SiO2 형태의 규산염이다. 가성 알칼리와 규산염은 조합으로 사용되지만, 단독으로 사용될 수도 있다. 가성알칼리의 M은 Na, K, 및 Li와 같은 알칼리 금속이온이며, 규산염은 리튬실리케이트, 소듐실리케이트, 포타슘실리케이트로 구성된 군에서 선택된다.An alkali activator may be included in the liquid phase of the crack injection material. Alkali activators are caustic alkalis in the form of MOH and silicates in the form of R 2 O. (n) SiO 2 . Caustic alkalis and silicates are used in combination but may be used alone. M of the caustic alkali is an alkali metal ion such as Na, K, and Li, and the silicate is selected from the group consisting of lithium silicate, sodium silicate and potassium silicate.
상기 가성 알칼리는 액상 중 1~10중량%로 함유되는데, 상기 함량이 1중량% 미만인 경우에는 지오폴리머의 분말상의 수화반응을 충분히 진행시키지 못하기 때문에 강도발현이 이루어지지 못하는 문제점이 있고, 10중량%를 초과하는 경우에는 수화반응 속도가 너무 빠르기 때문에 작업성이 불량한 문제점이 있다. 또한, 상기 규산염은 액상 중 30~70중량%로 함유되는데, 상기 함량이 30중량% 미만인 경우에는 규산염의 함량이 너무 낮아 지오폴리머 반응을 충분히 진행시키지 못하는 문제점이 있고, 70중량%를 초과하는 경우에는 지오폴리머의 급결효과가 발생하여 균열주입이 불충분한 문제점이 있다.The caustic alkali is contained in 1 to 10% by weight in the liquid phase, if the content is less than 1% by weight because the hydration reaction of the powder phase of the geopolymer is not sufficiently proceeded, there is a problem that the strength is not achieved, 10 wt. If it exceeds% there is a problem that the workability is poor because the hydration reaction rate is too fast. In addition, the silicate is contained in 30 to 70% by weight in the liquid phase, when the content is less than 30% by weight, the content of the silicate is too low to proceed the geopolymer reaction sufficiently, if the content exceeds 70% by weight There is a problem that the crack injection is insufficient due to the rapid polymerizing effect of the geopolymer.
상기 실란류는 n-옥틸 트리 에톡시 실란, n-옥틸 에톡시 실란, 이소옥틸 메톡시 실란, 아미노실란 으로 구성된 군에서 선택된다. The silanes are selected from the group consisting of n-octyl triethoxy silane, n-octyl ethoxy silane, isooctyl methoxy silane and aminosilane.
실란이란 화학식 R1Si(OR)3로 표시되는 화합물로서, 상기 화학식에서 R1은 여러 가지 폴리머들과 반응하는 유기 기능 그룹이다. OR은 실란 분자의 다른 쪽 끝에 있는 가수 분해성 알콕시 그룹을 의미한다. 실란은 계면 장력이 매우 작아 흡수가 빠르고, 구조체의 균열 표면을 소수성으로 변화시키나 발수력이 작아 지오폴리머 결합에 나쁜 영향을 주지 않는 장점이 있어 매우 유용한 재료이다. Silane is a compound represented by the formula R 1 Si (OR) 3 , wherein R 1 is an organic functional group that reacts with various polymers. OR means a hydrolyzable alkoxy group at the other end of the silane molecule. Silane is a very useful material because it has a very low interfacial tension, so it is fast to absorb and changes the crack surface of the structure hydrophobicly, but the water repellency is low and does not adversely affect the geopolymer bond.
상기 실란의 액상 중 함량은 1~10중량%이며, 상기 함량이 1중량% 미만인 경우에는 효과가 미비하고, 10중량%를 초과하는 경우에는 구조체의 균열 표면을 소수성으로 변화시켜 발수력이 높아 지오폴리머 경화반응을 지연시키는 문제점이 있다.When the content of the silane in the liquid phase is 1 to 10% by weight, the effect is insufficient when the content is less than 1% by weight, and when the content exceeds 10% by weight, the crack surface of the structure is changed to hydrophobic so that the water repellency is high. There is a problem of delaying the polymer curing reaction.
상기 액상수지는 SB(Styrene-Butadiene) 라텍스, PAE 에멀젼, EVA 에멀젼, 에폭시 수지, 아크릴 수지 및 폴리에스터 중 어느 하나인 것을 특징으로 한다.The liquid resin is characterized in that any one of SB (Styrene-Butadiene) latex, PAE emulsion, EVA emulsion, epoxy resin, acrylic resin and polyester.
액상수지의 함량은 액상 중 5~30중량%로 사용되며, 상기 함량이 5중량% 미만인 경우에는 지오폴리머의 흡수성이 개선되지 못하여 방수성이 떨어지는 문제점이 있고, 30중량%를 초과하는 경우에는 지오폴리머 수화생성물의 표면에 코팅막이 형성되어 수화반응을 불량하게 하는 문제점이 있다.The content of the liquid resin is used in 5 to 30% by weight of the liquid, when the content is less than 5% by weight does not improve the absorbency of the geopolymer has a problem of poor waterproofness, if the content exceeds 30% by weight geopolymer There is a problem in that the coating film is formed on the surface of the hydration product to make the hydration reaction poor.
이하에서는, 실시예를 통하여 본 발명을 더욱 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.
<실시예><Examples>
본 발명의 성능을 확인하기 위하여 본 발명의 조성물을 이용하여 균열주입재를 제조하고, 이를 이미 균열이 발생한 콘크리트 구조물 실험체의 균열에 주입하여 균열을 보수한 다음, KS F 4042 「콘크리트 구조물 보수용 폴리머 시멘트 모르타르」시험방법에 의거하여 성능시험을 수행하였다. 그 결과는 [표 1]과 같다.In order to confirm the performance of the present invention, a crack injection material was prepared using the composition of the present invention, and injected into the crack of the concrete structure specimen in which the crack had already occurred to repair the crack, and then KS F 4042 "Polymer cement for repairing the concrete structure. The performance test was carried out according to the "mortar" test method. The results are shown in [Table 1].
상기 균열주입재는 지오폴리머 90중량%, 고유동화제 5중량%, MgO 3중량%, 소포제 1중량%, 방수제 1중량%의 분말상과 물 15중량%, 가성알칼리 10중량%, 규산염 55중량%, 실란 5중량% 및 액상수지 15중량%의 액상으로 이루어져 있다.The crack injection material is 90% by weight of the geopolymer, 5% by weight of the high fluidizing agent, 3% by weight of MgO, 1% by weight of the antifoaming agent, 1% by weight of the waterproofing agent and 15% by weight of water, caustic alkali 10%, silicate 55%, It consists of 5% by weight of silane and 15% by weight of liquid resin.
이상의 설명은 본 특허의 기술사상을 예시적으로 설명한 것에 불과하며, 본 특허가 속하는 기술분야의 당업자라면 본 특허의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형을 할 수 있을 것이다.The above description is merely illustrative of the technical spirit of the present patent, and those skilled in the art to which the present patent belongs may make various modifications and changes without departing from the essential characteristics of the present patent.
또한, 본 특허에 개시된 실시예는 본 특허의 기술사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 특허의 기술사상의 범위가 한정되는 것은 아니다.In addition, the embodiments disclosed in the present patent are not intended to limit the technical spirit of the present patent but to describe the technical spirit of the present patent.
그러므로 본 특허의 보호범위는 하기 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술사상은 본 특허의 권리범위에 포함되는 것으로 해석되어야 할 것이다. Therefore, the protection scope of the present patent should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present patent.
Claims (8)
상기 분말상과 액상의 혼합비는 1:0.3~0.8인 것을 특징으로 하는 콘크리트 구조물의 균열주입재 조성물.The method of claim 1,
The mixing ratio of the powder phase and liquid phase is 1: 0.3 ~ 0.8 crack injection material composition of the concrete structure, characterized in that.
상기 지오폴리머는 고로슬래그, 플라이애시, 및 메타카올린으로 이루어진 군으로 1종 이상 선택되는 것을 특징으로 하는 콘크리트 구조물의 균열주입재 조성물.The method of claim 1,
The geopolymer is a crack injection material composition of a concrete structure, characterized in that at least one selected from the group consisting of blast furnace slag, fly ash, and metakaolin.
상기 지오폴리머는 분말도 8,000㎠/g 이상인 것을 특징으로 하는 콘크리트 구조물의 균열주입재 조성물.The method of claim 1,
The geopolymer is a crack injection material composition of a concrete structure, characterized in that the powder is 8,000 cm 2 / g or more.
상기 가성 알칼리는 KOH, NaOH, 및 LiOH로 이루어진 군으로부터 1종 이상 선택되는 것을 특징으로 하는 콘크리트 구조물의 균열주입재 조성물.The method of claim 1,
The caustic alkali is a crack injection material composition of a concrete structure, characterized in that at least one selected from the group consisting of KOH, NaOH, and LiOH.
상기 규산염은 리튬실리케이트, 소듐실리케이트, 및 포타슘실리케이트로 이루어진 군으로부터 1종 이상 선택되는 것을 특징으로 하는 콘크리트 구조물의 균열주입재 조성물.The method of claim 1,
The silicate is crack injection material composition of a concrete structure, characterized in that at least one selected from the group consisting of lithium silicate, sodium silicate, and potassium silicate.
상기 실란은 n-옥틸트리에톡시실란, n-옥틸에톡시실란, 이소옥틸메톡시실란, 및 아미노실란으로 이루어지는 군으로부터 1종 이상 선택되는 것을 특징으로 하는 콘크리트 구조물의 균열주입재 조성물.The method of claim 1,
The silane is selected from the group consisting of n-octyltriethoxysilane, n-octylethoxysilane, isooctylmethoxysilane, and aminosilane, the crack injection material composition of a concrete structure.
상기 액상수지는 SB(Styrene-Butadiene) 라텍스, PAE 에멀젼, EVA 에멀젼, 에폭시 수지, 아크릴 수지, 및 폴리에스터로 이루어지는 군으로부터 1종 이상 선택되는 것을 특징으로 하는 콘크리트 구조물의 균열주입재 조성물.The method of claim 1,
The liquid resin is a crack injection material composition of a concrete structure, characterized in that at least one selected from the group consisting of SB (Styrene-Butadiene) latex, PAE emulsion, EVA emulsion, epoxy resin, acrylic resin, and polyester.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100846821B1 (en) | 2007-01-22 | 2008-07-16 | 카운슬 오브 사이언티픽 앤드 인더스트리얼 리서치 | An improved process for the production of geopolymeric material from fly ash |
| KR100857616B1 (en) | 2006-03-20 | 2008-09-09 | 카운슬 오브 사이언티픽 앤드 인더스트리얼 리서치 | A process for the production of geopolymer cement from fly ash and granulated blast furnace slag, geopolymer cement made thereby and process of making products thereof |
| KR20110057833A (en) * | 2009-11-25 | 2011-06-01 | (주)엘지하우시스 | A composition for preparing the hybrid composite board using acryl polymer and geopolymer and the hybrid composite board |
| KR20110061944A (en) * | 2009-12-02 | 2011-06-10 | (주)덕성환경 | Geopolymeric concrete using recycled aggregate from waste of construction and manufacturing method thereof |
-
2011
- 2011-07-05 KR KR1020110066587A patent/KR101067891B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100857616B1 (en) | 2006-03-20 | 2008-09-09 | 카운슬 오브 사이언티픽 앤드 인더스트리얼 리서치 | A process for the production of geopolymer cement from fly ash and granulated blast furnace slag, geopolymer cement made thereby and process of making products thereof |
| KR100846821B1 (en) | 2007-01-22 | 2008-07-16 | 카운슬 오브 사이언티픽 앤드 인더스트리얼 리서치 | An improved process for the production of geopolymeric material from fly ash |
| KR20110057833A (en) * | 2009-11-25 | 2011-06-01 | (주)엘지하우시스 | A composition for preparing the hybrid composite board using acryl polymer and geopolymer and the hybrid composite board |
| KR20110061944A (en) * | 2009-12-02 | 2011-06-10 | (주)덕성환경 | Geopolymeric concrete using recycled aggregate from waste of construction and manufacturing method thereof |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101415342B1 (en) | 2012-02-22 | 2014-07-07 | 씨캠 주식회사 | Paint composition |
| EP2897919B1 (en) * | 2012-09-21 | 2021-03-17 | Commissariat à l'Énergie Atomique et aux Énergies Alternatives | Process for preparing a composite material from an organic liquid and resulting material |
| KR101373754B1 (en) | 2013-06-10 | 2014-03-13 | 쌍용양회공업(주) | Sprayable geopolymer repair mortar formulation using lithium chloride and colemanite for concrete repair |
| KR101303136B1 (en) | 2013-06-18 | 2013-09-09 | 여용득 | Acrylic copolymer injecting materials and repairing method of concrete structure by using cementitious acrylic copolymer injecting materials |
| EP2837608A1 (en) | 2013-08-15 | 2015-02-18 | Dow Global Technologies LLC | Epoxy-multilayer polymer rdp geopolymer compositions and methods of making and using the same |
| US9096469B2 (en) | 2013-08-15 | 2015-08-04 | Dow Global Technologies Llc | Epoxy-multilayer polymer RDP geopolymer compositions and methods of making and using the same |
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