KR102364752B1 - Cement Composition for Concrete Construct Repairing and Concrete Repairing Method Using The Same - Google Patents
Cement Composition for Concrete Construct Repairing and Concrete Repairing Method Using The Same Download PDFInfo
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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
- C04B28/02—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
- C04B28/04—Portland cements
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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
- C04B14/10—Clay
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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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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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
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
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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
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
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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
- C04B18/16—Waste materials; Refuse from building or ceramic industry
- C04B18/165—Ceramic waste
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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
- 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
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
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- 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
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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
- 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
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
Description
본 발명은 콘크리트 구조물의 단면보수용 시멘트조성물 및 이를 이용한 단면보수방법에 관한 것으로, 더욱 상세하게는 물과 함께 배합하여 보수가 요구되는 구조물(예로, 교각, 교량, 건물 등)을 절삭하고, 평삭작업, 청소 및 및 건조단계를 거친 상태의 단면에 처리하는 것으로 간단하게 보수할 수 있으며, 이에 의하면, 수분침투율이 낮고, 동결융해저항성이 높아 열화 및 균열이 억제되고, 압축강도, 휨강도가 우수함과 동시에 내구성이 커 수명이 오래가고 유지보수가 간단하면서도 이에 소요되는 비용을 크게 절감할 수 있는 콘크리트 단면보수용 시멘트조성물 및 이를 이용한 단면보수공법에 관한 것이다.The present invention relates to a cement composition for cross-section repair of a concrete structure and a cross-section repair method using the same, and more particularly, to a structure requiring repair by mixing it with water (eg, piers, bridges, buildings, etc.) It can be repaired simply by treating the cross section in a state that has been subjected to work, cleaning and drying steps. According to this, deterioration and cracking are suppressed due to low moisture permeability and high freeze-thaw resistance, and it has excellent compressive strength and flexural strength. At the same time, it relates to a cement composition for cross-section repair of concrete, which has a long lifespan, is simple in maintenance, and can greatly reduce the cost required for this, and a cross-section repair method using the same.
콘크리트는 지구상에서 가장 널리 사용되고 있는 재료로, 토목 및 건축, 플랜트에 이르기까지 대부분의 구조물은 콘크리트를 사용하여 건설되고 있다. 콘크리트는 타설이나 성형 후 일정 기간이 지나면 그 성능이 점차 저하하고 노후화된다. 특히 콘크리트에 균열(crack)이 발생하면 콘크리트 내부에 유해한 외기나 수분, 화학 성분이 침투하여 콘크리트의 성능저하가 더욱 촉진된다. 나아가 콘크리트 내부에 침투한 수분, 염화물 이온 등에 의해 콘크리트 구조물 내부의 철근에 부식이 발생하여 추가적인 균열이 발생하거나 콘크리트가 탈락하는 현상이 일어나고, 또한 철근 부식에 의해 철근단면이 감소하여 성능이 저하됨으로써 종국에는 구조물이 붕괴하는 정도까지 이를 수 있다.Concrete is the most widely used material on the planet, and most structures ranging from civil engineering and construction to plants are being constructed using concrete. After a certain period of time after pouring or molding, concrete gradually deteriorates and deteriorates. In particular, when cracks occur in concrete, harmful external air, moisture, and chemical components penetrate into the concrete, which further accelerates the deterioration of concrete performance. Furthermore, corrosion occurs in the reinforcing bars inside the concrete structure due to moisture and chloride ions that have penetrated into the concrete, resulting in additional cracks or concrete falling off. can reach the extent of collapse of the structure.
콘크리트 구조물에 손상이 있으면 콘크리트 구조물의 성능이 설계 연수에 미치지 못하므로, 콘크리트 구조물의 시공시 균열을 제어할 수 있는 방법이나 균열 내지 열화가 발생한 경우 보수 및 복구방법이 제안되고 있다. 균열제어방법은 균열발생을 저감할 수 있는 각종 섬유를 콘크리트에 혼입하여 타설하거나 와이어매시(Wire mesh)를 콘크리트 구조물 내부에 설치하는 방법이고, 보수 및 복구방법은 균열부나 열화부에 특정한 성분의 혼입으로 물리성능 및 내구성, 작업성 등이 다소 향상된 시멘트계 보수재료를 바르는 방법이다.If there is damage to the concrete structure, the performance of the concrete structure does not reach the design age. Therefore, a method for controlling cracks during construction of a concrete structure or a repair and recovery method for cracks or deterioration has been proposed. The crack control method is a method of mixing and pouring various fibers that can reduce cracking into concrete or installing a wire mesh inside the concrete structure. This is a method of applying cement-based repair materials with slightly improved physical performance, durability, and workability.
그런데 기존의 균열제어기술은 콘크리트 구조물에 발생하는 균열을 완벽히 방지하지 못하므로 추가적인 보수가 필요하여 근본적인 대책이 될 수 없었으며, 보수 및 복구방법 또한 보수된 부분에서 추가적인 균열이 쉽게 발생하여 지속적인 유지관리가 필요한 단점이 있다.However, since the existing crack control technology does not completely prevent cracks occurring in concrete structures, it cannot be a fundamental countermeasure because it requires additional repair. The disadvantage is that it requires
본 발명은 전술한 종래 기술의 문제점을 해결하기 위하여 제안된 것으로, 물과 함께 배합하여 보수가 요구되는 구조물(예로, 교각, 교량, 건물 등)을 절삭하고, 평삭작업, 청소 및 건조단계를 거친 상태의 단면에 처리하는 것으로 간단하게 보수할 수 있으며, 이에 의하면, 수분침투율이 낮고, 동결융해저항성이 높아 열화 및 균열이 억제되고, 압축강도, 휨강도가 우수함과 동시에 내구성이 커 수명이 오래가고 유지보수가 간단하면서도 이에 소요되는 비용을 크게 절감할 수 있는 콘크리트 단면보수용 시멘트조성물 및 이를 이용한 단면보수공법을 제공함에 있다. The present invention has been proposed to solve the problems of the prior art described above, and it is mixed with water to cut structures that require repair (eg, piers, bridges, buildings, etc.) It can be repaired simply by treating the cross section of the state. According to this, deterioration and cracking are suppressed due to low moisture permeation rate and high freeze-thaw resistance, and it has excellent compressive strength and flexural strength and long life and maintenance An object of the present invention is to provide a cement composition for repairing a concrete section, which can be easily repaired and significantly reduce costs, and a section repair method using the same.
본 발명의 해결하고자 하는 과제는 이상에서 언급한 것으로 제한되지 않으며, 언급되지 않은 또 다른 해결하고자 하는 과제는 아래의 기재로부터 본 발명이 속하는 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.The problems to be solved of the present invention are not limited to those mentioned above, and other problems to be solved that are not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.
상기한 바와 같은 본 발명의 기술적 과제는 다음과 같은 수단에 의해 달성되어진다.The technical problem of the present invention as described above is achieved by the following means.
(1) 포틀랜드 시멘트, 혼화재로 플라이애쉬, 실리카퓸, 고로슬래그, 결정격자형 점토광물 및 비결정질광물의 혼합광물을 포함하고, 혼화제로 폐유리분말과 굴패각분말의 혼합분말을 포함하는 것을 특징으로 하는 콘크리트 구조물의 단면보수용 시멘트조성물.(1) Portland cement, comprising fly ash, silica fume, blast furnace slag, a mixed mineral of crystalline lattice type clay mineral and amorphous mineral as an admixture, and a mixed powder of waste glass powder and oyster shell powder as an admixture Cement composition for cross-section repair of concrete structures.
(2) 상기 (1)에 있어서, 플라이애쉬, 실리카퓸, 및 고로슬래그는 중량비로 1.0:0.3~0.4:0.5~0.7로 조성된 것을 특징으로 하는 콘크리트 구조물의 단면보수용 시멘트조성물.(2) The cement composition for cross-section repair of a concrete structure according to (1), wherein the fly ash, silica fume, and blast furnace slag are in a weight ratio of 1.0:0.3 to 0.4:0.5 to 0.7.
(3) 상기 (2)에 있어서, 혼화제로 폐유리분말과 굴패각분말이 중량비로 1.0:0.1~0.8로 조성된 장기강도증진제 1.0~5.0중량% 첨가된 것을 특징으로 하는 콘크리트 구조물의 단면보수용 시멘트조성물.(3) The cement for cross-section repair of concrete structures according to (2), wherein 1.0 to 5.0 wt% of a long-term strength enhancer composed of waste glass powder and oyster shell powder as an admixture is added in a weight ratio of 1.0:0.1 to 0.8. composition.
(4) 상기 (3)에 있어서, 결정격자형 광물은 할로이사이트, 사포나이트, 바이오타이트 중에서 선택된 적어도 1종의 광물이고, 비결정질광물인 깁사이트, 고타이트 중에서 선택된 적어도 1종의 광물인 것을 특징으로 하는 콘크리트 구조물의 단면보수용 시멘트조성물.(4) In the above (3), the crystal lattice mineral is at least one mineral selected from halloysite, saponite, and biotite, and at least one mineral selected from amorphous minerals gibbsite and gotite Cement composition for cross-section repair of concrete structures.
(5) 상기 (3)에 있어서, 결정격자형 광물은 할로이사이트, 사포나이트, 바이오타이트가 중량비로 1.0:0.5~1.0:0.1~0.2로 혼합된 광물이고, 비결정질광물인 깁사이트와 고타이트가 중량비로 1.0:0.2~0.5로 혼합된 광물인 것을 특징으로 하는 콘크리트 구조물의 단면보수용 시멘트조성물.(5) In the above (3), the crystal lattice mineral is a mineral in which halloysite, saponite, and biotite are mixed in a weight ratio of 1.0:0.5 to 1.0:0.1 to 0.2, and amorphous minerals gibbsite and gotite A cement composition for cross-section repair of a concrete structure, characterized in that it is a mineral mixed in a weight ratio of 1.0: 0.2 to 0.5.
(6) 상기 (3)에 있어서, 상기 폐유리분말과 굴폐각분말의 분산성을 개선하기 위해 수산화나트륨을 더 포함하는 것을 특징으로 하는 콘크리트 구조물의 단면보수용 시멘트조성물.(6) The cement composition for cross-section repair of a concrete structure according to (3), further comprising sodium hydroxide in order to improve the dispersibility of the waste glass powder and the excavation shell powder.
(7) 상기 (1) 내지 (6) 중 선택된 어느 하나의 콘크리트 구조물의 단면보수용 시멘트조성물을, 절삭되어 평삭작업 및 건조단계가 완료된 건물 내지 구조물의 단면에 포설하는 단계를 포함하는 콘크리트 구조물의 단면보수공법. (7) A concrete structure comprising the step of installing the cement composition for cross-section repair of any one concrete structure selected from the above (1) to (6) on the cross-section of a building or structure that has been cut and the leveling operation and drying steps have been completed Sectional repair method.
상술한 바와 같이 본 발명은 콘크리트 구조물의 단면보수용 시멘트조성물은 물과 함께 배합하여 보수가 요구되는 구조물(예로, 교각, 교량, 건물 등)을 절삭하고, 평삭작업, 청소 및 건조단계를 거친 상태의 단면에 처리하는 것으로 간단하게 보수할 수 있으며, 이에 의하면, 수분침투율이 낮고, 동결융해저항성이 높아 열화 및 균열이 억제되고, 압축강도, 휨강도가 우수함과 동시에 내구성이 커 수명이 오래가고 유지보수가 간단하면서도 이에 소요되는 비용을 크게 절감할 수 있는 장점을 제공한다.As described above, in the present invention, the cement composition for cross-section repair of concrete structures is mixed with water to cut structures requiring repair (eg, piers, bridges, buildings, etc.) It can be easily repaired by treating the cross section of the Although simple, it provides the advantage of greatly reducing the cost required for this.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하고, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다.Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.
본 발명의 실시예들을 설명함에 있어서 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 발명의 실시예에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다. In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.
이하, 첨부된 도면들을 참조하여 본 발명의 실시예에 대해 살펴보기로 한다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
본 발명에 따른 콘크리트 구조물의 단면보수용 시멘트조성물은 포틀랜드 시멘트, 혼화재로 플라이애쉬, 실리카퓸, 고로슬래그, 결정격자형 점토광물 및 비결정질광물의 혼합광물을 포함하고, 혼화제로 폐유리분말과 굴패각분말의 혼합분말을 포함한다.The cement composition for cross-section repair of a concrete structure according to the present invention contains Portland cement, fly ash, silica fume, blast furnace slag, crystal lattice-type clay minerals and amorphous minerals as admixtures, and waste glass powder and oyster shell powder as admixtures. of mixed powder.
포틀랜드 시멘트는 바람직하게는 60~80중량%, 플라이애쉬, 실리카퓸, 고로슬래그, 결정격자형 점토광물 및 비결정질광물의 혼합광물을 포함하는 혼화재는 15~35중량%, 폐유리분말과 굴패각분말의 혼합분말을 포함하는 혼화제는 1~5중량% 포함한다.Portland cement is preferably 60 to 80% by weight, fly ash, silica fume, blast furnace slag, an admixture comprising a mixed mineral of crystalline lattice clay minerals and amorphous minerals 15 to 35% by weight, waste glass powder and oyster shell powder The admixture containing the mixed powder is included in an amount of 1 to 5% by weight.
상기 혼화재는 바람직하게는 플라이애쉬, 실리카퓸, 고로슬래그, 및 혼합광물은 혼화재의 중량대비 각각 40~50중량%, 10~20중량%, 20~30중량%, 및 10~20중량% 포함한다. 상기 혼화재 중 플라이애쉬, 실리카퓸, 및 고로슬래그는 중량비로 1.0:0.3~0.4:0.5~0.7로 조성되고, 보다 바람직하게는 1.0:0.3:0.5이다. 상기와 같은 조건하에 플라이애쉬, 실리카퓸, 고로슬래그를 혼합함으로써 콘크리트의 양생은 최적의 시간동안 일어나면서도 강도는 장기적으로 안정적으로 유지되어지며, 특히 부착강도, 휨강도, 압축강도 등이 개선된다.The admixture is preferably fly ash, silica fume, blast furnace slag, and mixed minerals 40 to 50% by weight, 10 to 20% by weight, 20 to 30% by weight, and 10 to 20% by weight, respectively, based on the weight of the admixture. . Among the admixtures, fly ash, silica fume, and blast furnace slag are composed in a weight ratio of 1.0:0.3 to 0.4:0.5 to 0.7, more preferably 1.0:0.3:0.5. By mixing fly ash, silica fume, and blast furnace slag under the above conditions, the curing of concrete takes place for an optimal time, while the strength is maintained stably for a long time.
상기 혼화재를 구성하는 혼합광물은 결정격자형 점토광물과 비결정질광물이 중량비로 1.0:0.2~1.0이고, 보다 바람직하게는 1.0:1.0으로 한다. 상기 결정격자형 점토광물은 바람직하게는 할로이사이트, 사포나이트, 바이오타이트 중에서 선택된 적어도 1종의 광물이고, 비결정질광물은 바람직하게는 깁사이트, 고타이트 중에서 선택된 적어도 1종의 광물이다.As for the mixed minerals constituting the admixture, the crystalline lattice type clay mineral and the amorphous mineral are in a weight ratio of 1.0:0.2 to 1.0, more preferably 1.0:1.0. The crystal lattice type clay mineral is preferably at least one mineral selected from halloysite, saponite, and biotite, and the amorphous mineral is preferably at least one mineral selected from gibbsite and gotite.
보다 바람직하게는 상기 혼합광물은, 결정격자형 광물은 할로이사이트, 사포나이트, 바이오타이트가 중량비로 1.0:0.5~1.0:0.1~0.2로 혼합된 광물이고, 비결정질광물은 깁사이트와 고타이트가 중량비로 1.0:0.2~0.5로 혼합된 광물이다.More preferably, in the mixed mineral, the crystal lattice mineral is a mineral in which halloysite, saponite, and biotite are mixed in a weight ratio of 1.0:0.5 to 1.0:0.1 to 0.2, and the amorphous mineral is gibbsite and gotite in a weight ratio It is a mineral mixed with 1.0:0.2~0.5.
본 발명에서 상기 결정격자형 점토광물과 비결정질광물로 구성되는 혼합광물은 수분흡수에 따른 팽창율이 적어 균열의 위험을 최소화하고, 나아가 외부 충격 등에 의해 균열이 발생한 경우라도 결정격자와 비결정격자의 공극에 흡수된 수분에 의해 CSH겔화 반응을 지속적으로 유도하여 장기적인 강도의 안정성을 스스로 도모할 수 있게 한다. In the present invention, the mixed mineral composed of the crystalline lattice type clay mineral and the amorphous mineral has a low expansion rate due to water absorption to minimize the risk of cracking, and furthermore, even when cracks occur due to external impact, etc. By continuously inducing the CSH gelation reaction by the absorbed moisture, it is possible to promote long-term stability of strength by itself.
상기 혼화제를 구성하는 폐유리분말과 굴패각분말은 바람직하게는 중량비로 1.0:0.1~0.8, 보다 바람직하게는 중량비로 1.0:0.5로 조성된다. 상기 폐유리분말과 굴패각분말은 산화칼슘의 지속적인 공급원으로 오랜기간 사용 후 콘크리트에 균열이 발생한 경우 공기에 함유된 수분 혹은 강우의 유입에 의해 스며든 물과 반응하여 CSH겔을 형성하여 장기적인 강도의 안정성을 보다 강화하는데 이바지 한다.The waste glass powder and oyster shell powder constituting the admixture are preferably in a weight ratio of 1.0:0.1 to 0.8, and more preferably in a weight ratio of 1.0:0.5. The waste glass powder and oyster shell powder are continuous sources of calcium oxide, and when cracks occur in concrete after long-term use, it reacts with moisture contained in the air or water permeated by the inflow of rainfall to form a CSH gel, resulting in long-term stability of strength Contribute to further strengthening
상기 폐유리분말과 굴폐각분말의 분산성을 개선하기 위해 수산화나트륨을 더 포함한다. 바람직하게는 상기 수산화나트륨은 혼화제의 중량대비 10~20중량%로 첨가한다. 수산화나트륨을 첨가한 경우 CSH겔의 형성부위를 전체적으로 균일하게 조성할 수 있을 뿐만 아니라 플라이애쉬와 실리카퓸의 포졸란 반응을 보다 촉진하여 장기적인 강도의 안정성 측면에서 상승적인 효과를 제공한다. It further includes sodium hydroxide to improve the dispersibility of the waste glass powder and the oyster shell powder. Preferably, the sodium hydroxide is added in an amount of 10 to 20% by weight based on the weight of the admixture. When sodium hydroxide is added, the CSH gel formation site can be uniformly formed as a whole, and the pozzolan reaction between fly ash and silica fume is further promoted, thereby providing a synergistic effect in terms of long-term stability of strength.
이하 본 발명의 내용을 실시예를 참조하여 보다 구체적으로 설명하고자 하나 이들 실시예는 본 발명의 이해를 돕기 위해 제시된 것일 뿐 본 발명의 권리범위가 이에 한정되는 것으로 해석되어져서는 아니될 것이다.Hereinafter, the contents of the present invention will be described in more detail with reference to examples, but these examples are only presented to help the understanding of the present invention, and the scope of the present invention should not be construed as being limited thereto.
[실시예 1][Example 1]
포틀랜드 시멘트 60 중량%(전체 조성물 중량기준), 플라이애쉬(50 중량%-혼화재 중량기준), 실리카퓸(15 중량%-혼화재 중량기준), 고로슬래그(25 중량%-혼화재 중량기준), 결정격자형 점토광물[5 중량%-혼화재 중량기준: 할로이사이트(3.1 중량%-혼화재 중량기준), 사포나이트(1.6 중량%-혼화재 중량기준), 바이오타이트(0.3 중량%-혼화재 중량기준)] 및 비결정질광물[5 중량%-혼화재 중량기준: 깁사이트(3.3중량%-혼화재 중량기준), 고타이트(1.7중량%-혼화재 중량기준)]의 혼합광물을 포함하는 혼화재는 35중량%(전체 조성물 중량기준), 폐유리분말(3.3 중량%-전체조성물 중량기준)과 굴패각분말(1.7 중량%-전체조성물 중량기준)의 혼합분말을 포함하는 혼화제는 5중량%(전체 조성물 중량기준)로 이루어진 단면보수용 시멘트조성물을 믹서에 투입하여 교반한 후, 상기 포틀랜드 시멘트의 중량대비 40중량부의 물을 투입하여 10분간 교반하였다.Portland cement 60% by weight (based on the total weight of the composition), fly ash (50% by weight - based on the weight of the admixture), silica fume (15% by weight - based on the weight of the admixture), blast furnace slag (25% by weight - based on the weight of the admixture), crystal lattice Type clay minerals [5 wt% - based on the weight of the admixture: halloysite (3.1 wt% - based on the weight of the admixture), saponite (1.6 wt% - based on the weight of the admixture), biotite (0.3 wt% - based on the weight of the admixture)] and amorphous Minerals [5% by weight - based on the weight of the admixture: gibbsite (3.3% by weight - based on the weight of the admixture), gotite (1.7% by weight - based on the weight of the admixture)] 35% by weight of the admixture (based on the weight of the total composition) ), an admixture comprising a mixed powder of waste glass powder (3.3 wt% - based on the weight of the total composition) and oyster shell powder (1.7 wt% - based on the weight of the total composition) 5 wt% (based on the weight of the total composition) After the cement composition was put into a mixer and stirred, 40 parts by weight of water based on the weight of the Portland cement was added and stirred for 10 minutes.
[실시예 2][Example 2]
수산화나트륨을 혼화제의 중량대비 10중량% 추가 첨가한 것을 제외하고 실시예 1과 동일한 방법 및 조건으로 단면보수용 시멘트조성물을 조제하였다.A cement composition for section repair was prepared in the same manner and under the same conditions as in Example 1, except that 10% by weight of sodium hydroxide was added based on the weight of the admixture.
[비교예 1][Comparative Example 1]
상기 실시예 1에서 포틀랜드 시멘트 95중량%[혼화재 무첨가]을 제외하고는 실시예 1과 동일한 조성으로 단면보수용 시멘트조성물을 조제하였다.A cement composition for section repair was prepared in the same composition as in Example 1, except for 95 wt% of Portland cement [no admixture added] in Example 1.
[비교예 2][Comparative Example 2]
혼화재의 성분으로 플라이애쉬 30 중량%(혼화재 중량기준), 실리카퓸 30 중량%(혼화재 중량기준), 고로슬래그 40 중량%(혼화재 중량기준)를 첨가한 것을 제외하고는 실시예 1과 동일한 조성으로 단면보수용 시멘트조성물을 조제하였다.The same composition as in Example 1 except that 30 wt% of fly ash (based on the weight of the admixture), 30 wt% of silica fume (based on the weight of the admixture), and 40 wt% of the blast furnace slag (based on the weight of the admixture) were added as the components of the admixture A cement composition for section repair was prepared.
[비교예 3][Comparative Example 3]
혼화재 중 혼합광물의 조성을 결정격자형 점토광물[할로이사이트(6.2 중량%-혼화재 중량기준), 사포나이트(3.2 중량%-혼화재 중량기준), 바이오타이트(0.6 중량%-혼화재 중량기준)]로만 10 중량%(혼화재 중량기준) 조성한 것을 제외하고 실시예 1과 동일한 조성으로 단면보수용 시멘트조성물을 조제하였다.The composition of the mixed minerals among the admixtures is limited to crystal lattice type clay minerals [haloysite (6.2 wt%-based on the weight of the admixture), saponite (3.2 wt%-based on the weight of the admixture), and biotite (0.6 wt%-based on the weight of the admixture)] A cement composition for cross-section repair was prepared in the same composition as in Example 1, except that it was prepared in weight% (based on the weight of the admixture).
[비교예 4][Comparative Example 4]
혼화재 중 혼합광물의 조성을 비결정질광물[깁사이트(6.6중량%-혼화재 중량기준), 고타이트(3.4중량%-혼화재 중량기준)]로만 10 중량%(혼화재 중량기준) 조성한 것을 제외하고 실시예 1과 동일한 조성으로 단면보수용 시멘트조성물을 조제하였다.Among the admixtures, the composition of the mixed minerals was only 10% by weight (based on the weight of the admixture) with only amorphous minerals [gibbsite (6.6% by weight - based on the weight of the admixture), Gotite (3.4% by weight - based on the weight of the admixture)] Example 1 and A cement composition for section repair was prepared with the same composition.
[실험예 1] [Experimental Example 1]
상기 각 실시예에 따른 단면보수용 시멘트조성물과 비교예에 의해 제조된 시멘트조성물을 공시된 방법에 따라 압축강도, 휨강도, 투수성, 동결융해 저항성 및 부착강도에 관하여 실험한 결과는 하기 표 1에 나타내었다.The results of experiments with respect to the compressive strength, flexural strength, water permeability, freeze-thaw resistance and adhesion strength of the cement composition for cross-section repair according to each Example and the cement composition prepared by the comparative example according to the disclosed method are shown in Table 1 below. indicated.
(Kg/㎠):3hrscompressive strength
(Kg/㎠):3hrs
(Kg/㎠):3hrs flexural strength
(Kg/㎠):3hrs
(N/㎟)Adhesive strength
(N/㎟)
* 압축강도: KS F 2405, 휨강도: KS F 2408, 투수시험: KS F 4916, 동결융해 저항성[내구성]: KS F 2456, 부착강도: KS F 4716* Compressive strength: KS F 2405, Bending strength: KS F 2408, Permeability test: KS F 4916, Freeze and thaw resistance [Durability]: KS F 2456, Adhesive strength: KS F 4716
상기 표 1에 의하면, 본 발명에 따른 조성물이 제반 물성에 있어서, 비교예 1의 조성물에 비하여 전반적으로 크게 개선이 있음을 확인할 수 있다. 또한, 혼화재의 구성을 달리한 비교예 2 내지 3의 경우 본 발명에 따른 혼화재를 첨가하지 않은 비교예 1보다는 전반적으로 우수하고, 나아가 혼화재의 조성을 달리하여 조제한 비교예 2 내지 3에 비하여도 전체적인 특성에서 우수한 것으로 나타난다. 특히 혼합광물에서 결정질점토광물과 비결정질광물 중 어느 하나만을 넣고 조제한 비교예 3 및 비교예 4에 비하여 결정질점토광물과 비결정질광물 모두를 넣은 실시예 1 및 실시예 2의 경우에서 강도 내지 내구성의 측면에서 개선된 효과가 있음을 확인할 수 있다. 또한 실시예 1의 경우 보다는 수산화나트륨을 첨가한 실시예 2의 경우에서 전반적인 특성이 개선된 것으로 확인된다.According to Table 1, it can be seen that the composition according to the present invention has a large overall improvement compared to the composition of Comparative Example 1 in general physical properties. In addition, in the case of Comparative Examples 2 to 3 in which the composition of the admixture was different, the overall characteristics were better than Comparative Example 1 in which the admixture according to the present invention was not added, and further, compared to Comparative Examples 2 to 3 prepared by changing the composition of the admixture according to the present invention. is shown to be excellent in In particular, in the case of Examples 1 and 2, in which both the crystalline clay mineral and the amorphous mineral were added, compared to Comparative Examples 3 and 4, which were prepared by adding only one of the crystalline clay mineral and the amorphous mineral in the mixed mineral, in terms of strength and durability It can be seen that there is an improved effect. In addition, it is confirmed that the overall properties are improved in the case of Example 2 in which sodium hydroxide is added than in the case of Example 1.
[실험예 2][Experimental Example 2]
실시예 1~2 및 비교예 1~4에서 얻어진 시멘트조성물을 이용하여 10cm×10cm×40cm의 직방체 형상의 콘크리트 공시체를 2체씩 제작하였다. 상기 콘크리트 공시체는, 20℃ 항온하에서 재령 7일까지 봉함한 상태로 보관하고, PC 강봉에 의해 외적으로 구속을 주었다. 재령 7일에 있어서, 각 콘크리트 공시체에 균열을 1개소 도입하였다. 균열은 각 공시체에 인장력을 작용시켜 발생시켰으며, 콘크리트 공시체 부분에 발생시킨 균열폭은 0.3mm로 고정하였다.Using the cement compositions obtained in Examples 1 to 2 and Comparative Examples 1 to 4, two concrete specimens having a rectangular parallelepiped shape of 10 cm × 10 cm × 40 cm were prepared. The concrete specimen was stored in a sealed state until 7 days of age under a constant temperature of 20° C., and was externally restrained by a PC steel bar. At 7 days of age, one crack was introduced into each concrete specimen. Cracks were generated by applying a tensile force to each specimen, and the crack width generated in the concrete specimen was fixed to 0.3mm.
균열의 고정 후, 1m의 수두(水頭)를 주어 콘크리트 경화체의 균열간에 항상 물이 흐르는 상태로 하여 균열의 자기 치유 성상을 관찰하였다. 이 때의 동수구배는 10m/m였다. 해당 평가에 있어서는, (i) 상시 투수 상태로 하여 전술한 투수량을 측정해서 얻어진 지수성의 평가에 더하여, (ii) 상시 투수 상태로 하여 균열부를 현미경에 의해 관찰하고, 그 균열폭이 감소하는 정도에 관해서도 평가하였다.After fixing the cracks, a water head of 1 m was applied to ensure that water always flows between cracks in the hardened concrete body, and the self-healing properties of cracks were observed. The hydrodynamic gradient at this time was 10 m/m. In this evaluation, in addition to the evaluation of water repellency obtained by measuring the water permeability described above in (i) in a permanently permeable state, (ii) in a constantly permeable state, the cracks are observed under a microscope, and the crack width is also reduced. evaluated.
※ 지수성의 평가※ Evaluation of indexability
◎: 7일간에서 투수량이 초기 투수량의 50분의 1 이하가 되는 경우, ○: 7일간에서 투수량이 초기 투수량의 50분의 1보다 크고, 10분의 1 이하가 되는 경우, △: 7일간에서 투수량이 초기 투수량의 10분의 1보다 크고, 2분의 1 이하가 되는 경우, ×: 7일간에서 투수량이 초기 투수량의 2분의 1보다 큰 경우◎: When the permeability is less than 1/50 of the initial permeability in 7 days, ○: When the permeability is greater than 1/50 and less than 1/10 of the initial permeation in 7 days, △: In 7 days When the pitching amount is greater than 1/10 and less than 1/2 of the initial pitching amount, ×: When the pitching amount is greater than 1/2 of the initial pitching amount in 7 days
※ 균열폭의 평가※ Evaluation of crack width
균열의 고정 후, 콘크리트 경화체를 각각 상수도수 20리터 넣은 폴리프로필렌제 컨테이너에 침지하고, 20℃ 항온 실내에서 수중 양생을 실시하였다. 그 후, 1일간 간격으로 콘크리트 경화체의 균열 형성부에 관하여 현미경을 이용해서 관찰을 실시하여, 균열 자기 치유 성능에 관하여 평가를 실시하였다.After fixing the cracks, the concrete hardened body was immersed in a polypropylene container containing 20 liters of tap water, respectively, and cured in water in a room at a constant temperature at 20°C. Then, it observed using the microscope about the crack formation part of the concrete hardening body at intervals of 1 day, and evaluated the crack self-healing performance.
◎: 28일간에서 균열폭이 0.1mm 이상 감소했을 경우, ○: 28일간에서 균열폭의 감소가 0.05mm 이상, 0.1 mm 미만이었을 경우, △: 28일간에서 균열폭의 감소가 0.025mm 이상 0.5mm 미만이었을 경우, ×: 28일간에서의 균열폭의 감소가 0.025mm 미만인 경우.◎: When the crack width decreased by 0.1 mm or more in 28 days ○: When the decrease in crack width was 0.05 mm or more and less than 0.1 mm in 28 days △: When the decrease in crack width was 0.025 mm or more and less than 0.5 mm in 28 days , ×: When the decrease in crack width in 28 days is less than 0.025 mm.
항목test
Item
상기 표 2에 의하면, 본 발명에 따른 조성물이 지수성과 균열폭 실험에 있어서, 비교예 1의 조성물에 비하여 전반적으로 크게 개선이 있음을 확인할 수 있다. 또한, 혼화재의 구성을 달리한 비교예 2 내지 4의 경우 혼화재를 첨가하지 않은 비교예 1보다는 전반적으로 우수하지만, 실시예 1 내지 2에 의한 조성물에 비하여 특성에서는 현저히 떨어지는 것을 확인할 수 있다. 또한 실시예 1의 경우 보다 수산화나트륨을 첨가한 실시예 2의 경우에서 지수성은 10%, 균열폭의 경우에는 8%의 개선효과가 있는 것으로 확인된다.According to Table 2, it can be seen that the composition according to the present invention has a significant overall improvement compared to the composition of Comparative Example 1 in water resistance and crack width tests. In addition, Comparative Examples 2 to 4, in which the composition of the admixture was different, was overall superior to that of Comparative Example 1 in which no admixture was added, but it was confirmed that the properties were significantly lower than that of the compositions according to Examples 1 and 2. In addition, it is confirmed that there is an improvement effect of 10% in water resistance and 8% in the case of crack width in the case of Example 2 in which sodium hydroxide is added than in the case of Example 1.
이상의 설명은 본 발명의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. 따라서, 본 발명에 개시된 실시예들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the claims below, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.
Claims (3)
플라이애쉬, 실리카퓸, 및 고로슬래그는 중량비로 1.0:0.3~0.4:0.5~0.7로 조성되고,
상기 혼화제는 폐유리분말과 굴패각분말이 중량비로 1.0:0.1~0.8로 조성되며,
상기 혼합광물은 혼화재의 중량대비 10~20중량% 포함되고, 결정격자형 점토광물은 할로이사이트, 사포나이트, 바이오타이트가 중량비로 1.0:0.5~1.0:0.1~0.2로 혼합된 광물이고, 비결정질광물은 깁사이트와 고타이트가 중량비로 1.0:0.2~0.5로 혼합된 광물인 것을 특징으로 하는 콘크리트 구조물의 단면보수용 시멘트조성물.Portland cement 60-80% by weight, fly ash, silica fume, blast furnace slag, 15-35% by weight of an admixture containing mixed minerals of crystalline lattice-type clay minerals and amorphous minerals, a mixed powder of waste glass powder and oyster shell powder Including 1 to 5% by weight of admixture,
Fly ash, silica fume, and blast furnace slag are composed in a weight ratio of 1.0:0.3 to 0.4:0.5 to 0.7,
The admixture is composed of waste glass powder and oyster shell powder in a weight ratio of 1.0:0.1 to 0.8,
The mixed mineral is contained in 10 to 20% by weight relative to the weight of the admixture, and the crystal lattice type clay mineral is a mineral in which halloysite, saponite, and biotite are mixed in a weight ratio of 1.0:0.5 to 1.0:0.1 to 0.2, and an amorphous mineral A cement composition for cross-section repair of a concrete structure, characterized in that silver is a mineral mixed with gibbsite and gotite in a weight ratio of 1.0:0.2 to 0.5.
상기 폐유리분말과 굴폐각분말의 분산성을 개선하기 위해 수산화나트륨을 더 포함하는 것을 특징으로 하는 콘크리트 구조물의 단면보수용 시멘트조성물.The method of claim 1,
Cement composition for cross-section repair of a concrete structure, characterized in that it further comprises sodium hydroxide to improve the dispersibility of the waste glass powder and the excavation shell powder.
A cross-section repair method of a concrete structure comprising the step of installing the cement composition for cross-section repair of a concrete structure according to claim 1 or 2 on the cross-section of a building or structure that has been cut and the leveling operation and drying steps have been completed.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| KR101681596B1 (en) * | 2016-02-04 | 2016-12-01 | 주식회사 에코이앤씨 | Mortar composition of improving chemical resistance and durability for repairing and reinforcing concrete structures , and method of repairing and reinforcing concrete structures using the same |
| KR101887463B1 (en) * | 2011-07-01 | 2018-08-14 | 잇판자이단호진 세이산기쥬츠켄큐쇼레이카이 | Repairing material for cracks accompanied with water leakage in concrete structure and process for repairing said cracks using said repairing material |
| KR101914473B1 (en) * | 2018-03-05 | 2018-11-02 | 임환명 | Composition of eco-friendly functional surface protecting materials for protecting concrete structure and method for protecting surface of concrete structure therewith |
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| KR101527702B1 (en) * | 2015-01-16 | 2015-06-09 | 이동우 | Coating material for protecting surface of concrete structure and steel, and construction method of protecting surface of concrete structure and steel using the same |
| KR101681596B1 (en) * | 2016-02-04 | 2016-12-01 | 주식회사 에코이앤씨 | Mortar composition of improving chemical resistance and durability for repairing and reinforcing concrete structures , and method of repairing and reinforcing concrete structures using the same |
| KR101914473B1 (en) * | 2018-03-05 | 2018-11-02 | 임환명 | Composition of eco-friendly functional surface protecting materials for protecting concrete structure and method for protecting surface of concrete structure therewith |
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|---|---|---|---|---|
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