KR102195453B1 - Crack repairing material for concrete structure with improved water proof performance and durability and method of repairing concrete structure using the same - Google Patents
Crack repairing material for concrete structure with improved water proof performance and durability and method of repairing concrete structure using the same Download PDFInfo
- Publication number
- KR102195453B1 KR102195453B1 KR1020200028536A KR20200028536A KR102195453B1 KR 102195453 B1 KR102195453 B1 KR 102195453B1 KR 1020200028536 A KR1020200028536 A KR 1020200028536A KR 20200028536 A KR20200028536 A KR 20200028536A KR 102195453 B1 KR102195453 B1 KR 102195453B1
- Authority
- KR
- South Korea
- Prior art keywords
- weight
- parts
- crack repair
- concrete structure
- lithium
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- 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
- C04B14/022—Carbon
- C04B14/024—Graphite
-
- 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
- C04B14/06—Quartz; Sand
-
- 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
- C04B14/06—Quartz; Sand
- C04B14/066—Precipitated or pyrogenic silica
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
-
- 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
-
- 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
- C04B18/149—Waste materials; Refuse from metallurgical processes other than silica fume or slag
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0016—Granular materials, e.g. microballoons
- C04B20/002—Hollow or porous granular materials
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
- C04B20/008—Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder
-
- 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
- C04B22/008—Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
-
- 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
- C04B22/08—Acids or salts thereof
-
- 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
- C04B22/08—Acids or salts thereof
- C04B22/085—Acids or salts thereof containing nitrogen in the anion, e.g. nitrites
-
- 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
- C04B41/52—Multiple 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
- C04B41/522—Multiple coatings, for one of the coatings of which at least one alternative is described
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/56—Opacifiers
- C04B2103/58—Shrinkage reducing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
-
- 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 방수성능 및 내구성이 향상된 콘크리트 구조물용 균열 보수제 및 이를 이용한 콘크리트 구조물 균열 보수 공법에 관한 것으로서, 특히 콘크리트 구조물과의 접착성과 내구성이 우수하고, 방수성이 우수하며 경화 후에도 신축성이 장기간 유지되어 콘크리트 구조물의 균열 보수 효과가 장기간 유지될 수 있는 콘크리트 구조물의 균열 보수 공법에 관한 것이다.The present invention relates to a crack repair agent for concrete structures with improved waterproof performance and durability, and a concrete structure crack repair method using the same.In particular, the adhesiveness and durability with the concrete structure are excellent, the waterproof property is excellent, and the elasticity is maintained for a long time even after hardening. It relates to a crack repair method of concrete structures that can maintain the crack repair effect of the structure for a long time.
일반적으로 콘크리트는 현재 고강도 고유동성을 선호하는 추세이다. 하지만 이러한 고강도 고유성 구조물은 균열제어가 매우 중요하며 관리에 어려움이 있는 실정이다.In general, concrete currently favors high strength and high fluidity. However, crack control is very important for such a high-strength intrinsic structure, and management is difficult.
또한, 콘크리트 구조물의 보수 보강시에도 구조물과 동질 재료인 시멘트, 모래와 첨가 재료를 혼합한 모르타르계 또는 시멘트계 방수공법이 일반적으로 많이 사용되며 선호되는 추세이나, 이러한 종래의 공법에서의 문제점은 초기 균열 발생으로, 그 원인으로는 시공 초기에 수분 증발에 의한 건조 수축, 콘크리트 구조물의 수축 팽창, 겨울철 콘크리트 내부 수분의 수축 팽창에 의한 동결 융해, 외부 충격 및 진동, 방수 재료의 문제 등을 들 수 있다. In addition, even when repairing and reinforcing concrete structures, a mortar-based or cement-based waterproofing method, which is a mixture of cement, sand and additives, which is the same material as the structure, is generally used and is preferred, but the problem with this conventional method is initial cracking. Occurrences may include drying shrinkage due to evaporation of moisture at the beginning of construction, shrinkage and expansion of concrete structures, freezing and thawing due to shrinkage and expansion of moisture inside concrete in winter, external shocks and vibrations, and problems with waterproofing materials.
특히 모르타르가 소성 상태에 있을 때 급격한 수분증발로 수축현상이 발생하며 이러한 수축현상은 건조되지 않은 모르타르의 내부 구속으로 표면 인장력이 발생하여 균열유발을 빈번히 발생시킨다. 이러한 소성 균열이 한번 발생하면 그 자리에 머물지 않고 계속 발전이 되는 취성 균열 현상이 일어나는 것이 가장 큰 문제점이다.In particular, when the mortar is in a sintered state, shrinkage occurs due to rapid evaporation of moisture, and this shrinkage occurs frequently due to the surface tension generated by the internal restraint of the undried mortar, causing cracks. The biggest problem is that once such a plastic crack occurs, a brittle crack phenomenon that does not stay in place but continues to develop occurs.
이렇게 균열이 한번 발생하게 되면 구조물의 노화 및 2차 균열 발생을 촉진시키고 접착이 불량해지며 이로 인한 수분침투로 철근에 녹을 발생시키고 장기적으로 구조물의 내구성 저하를 일으키기 때문에 대부분의 공법이 방수층 보호를 위하여 보호 모르타르, 보호시트 등의 2차 공정을 해주어야 하는 문제점이 있다. When such a crack occurs once, the aging of the structure and the occurrence of secondary cracks are promoted, the adhesion is poor, and the moisture infiltrate causes rust on the reinforcing bar, and the durability of the structure is deteriorated in the long term, so most construction methods are used to protect the waterproof layer. There is a problem in that a secondary process such as a protective mortar and a protective sheet must be performed.
따라서 콘크리트 구조물과 동질 재료인 동시에 균열 저항성을 향상시키고 균열이 발생하더라도 더 이상 균열 발생 발전이 없으며, 콘크리트 구조물과 동질화된 접착성, 침투성, 작업성, 보강성, 장기적인 내구성 등의 증진 특성을 갖는 재료에 대한 요구가 점차 확대되고 있는 상황이다.Therefore, it is a material that is homogeneous to the concrete structure, and at the same time improves crack resistance and does not develop cracking anymore even if a crack occurs, and a material that has improved properties such as adhesion, penetrability, workability, reinforcement, and long-term durability homogenized with the concrete structure. The demand for is gradually expanding.
한편, 균열 보수를 목적으로 사용되어온 에폭시 수지는 주로 건조 환경에서 접착제로 사용된 재료로서 강도가 커서 주로 구조 내하력 보강 목적으로 사용되어 왔으나, 경화 후 변형에 대한 적응성이 낮고 환경적 영향을 받는 물성 면에서 한계가 있으며 주성분이 콘크리트 모재와 다르므로 콘크리트 구조물과의 일체성이 떨어지는 문제가 있어 에폭시 수지를 이용한 균열 보수는 작업 수행 후 박리와 파손으로 인한 재보수의 빈도가 높을 뿐만 아니라 방수 성능에도 한계가 있다. On the other hand, epoxy resin, which has been used for the purpose of repairing cracks, is a material mainly used as an adhesive in a dry environment and has been mainly used for structural load-bearing reinforcement because of its high strength. However, it has low adaptability to deformation after curing, and physical properties that are affected by environmental influences. As the main component is different from the concrete base material, there is a problem that the integrity with the concrete structure is poor.Therefore, the crack repair using epoxy resin not only has a high frequency of renovation due to peeling and damage after performing the work, but also has a limit in waterproof performance. have.
또한, 기존에 균열 보수 재료로서 사용되어온 폴리머 시멘트 모르타르는 에폭시 수지 모르타르에 비하여 구조물과의 일체화 특성은 우수하나, 보수 재료의 부착성 향상을 위하여 증점제를 첨가함으로써 스프레이 장비를 이용한 기계 시공시 운송 호스 내부 표면과의 마찰력이 증가하여 호스가 막히고 토출량이 적어져 시공 속도가 저하되고 폴리머의 종류나 첨가량에 따라 흙손 바름 작업성이 나쁘고 타설 두께가 비교적 얇아 여러번의 반복 시공이 필요하여 시공성이 떨어지는 문제점이 있어 개선이 필요한 상황이다. In addition, polymer cement mortar, which has been used as a crack repair material in the past, is superior to the epoxy resin mortar in terms of integration with the structure, but by adding a thickener to improve the adhesion of the repair material, the inside of the transport hose is used for machine construction using spray equipment. Due to the increased friction with the surface, the hose is clogged and the amount of discharge decreases, resulting in a decrease in construction speed. Depending on the type or amount of polymer added, the trowel application workability is poor, and the pouring thickness is relatively thin. It is a situation in need of improvement.
[관련 선행기술 문헌][Related prior art literature]
1. 대한민국 등록특허 제10-0964064호1. Korean Patent Registration No. 10-0964064
2. 대한민국 등록특허 제10-0767736호2. Korean Patent Registration No. 10-0767736
3. 대한민국 등록특허 제10-0978190호3. Korean Patent Registration No. 10-0978190
4. 대한민국 등록특허 제10-1103881호4. Korean Patent Registration No. 10-1103881
본 발명은 상기와 같은 종래 기술의 상황을 고려하여 개발된 것으로서, 콘크리트 구조물의 누수 방지 및 균열 보수시 내구성이 우수하고 특히 콘크리트 구조물 모재와의 부착성이 우수하여 일체화가 가능하며 이에 따라 콘크리트 구조물의 보수 성능 뿐만 아니라 방수 성능도 우수하고, 친환경성, 내화학성, 내염성, 내구성, 소성균열 저항성을 향상시킬 수 있으며, 또한 고인장, 충격저항성 향상과 동시에 우수한 휨강도 발현과 친수성 섬유로 인한 수밀성, 뛰어난 부착력과 내구성으로 습한 면, 노출면, 지하면 등 시공 장소의 제약이 없이 시공이 가능한 보수 보강용 폴리머 모르타르 및 이를 이용한 콘크리트 구조물의 누수 방지 및 균열 보수 공법에 관한 기술을 제공하고자 한다. The present invention has been developed in consideration of the situation of the prior art as described above, and has excellent durability in preventing leakage of concrete structures and repairing cracks, and in particular, it has excellent adhesion to the concrete structure base material, so that integration of the concrete structure is possible. It is excellent in water-tightness as well as repair performance, and can improve eco-friendliness, chemical resistance, flame resistance, durability, and plastic crack resistance, and also improves high tensile and impact resistance, as well as excellent flexural strength, watertightness due to hydrophilic fibers, and excellent adhesion. The purpose of this study is to provide a repair and reinforcement polymer mortar that can be constructed without restrictions on construction sites such as wet surfaces, exposed surfaces, and underground surfaces due to its durability, and a technology for preventing leakage and repairing cracks in concrete structures using the same.
상기 과제를 달성하기 위하여 본 발명은 In order to achieve the above object, the present invention
시멘트 100 중량부에 대하여 폴리머 1~10 중량부, 플라이애쉬 0.1~7 중량부, 실리카 흄 0.1~8 중량부, 섬유보강재 1~10 중량, 골재 30~50 중량부, 수축방지제 0.5~2.0 중량부, 소포제 0.1~2.0 중량부, 팽창제 0.5~10 중량부, 분말형 실리콘 발수제 1~10 중량부, 가용성규산염 0.01~1.0 중량부, 아질산 이온 0.01~0.12 중량부 및 이온화 리튬 0.01~0.5 중량부를 포함하는 콘크리트 구조물용 균열 보수제 조성물을 제공한다. Based on 100 parts by weight of cement, 1 to 10 parts by weight of polymer, 0.1 to 7 parts by weight of fly ash, 0.1 to 8 parts by weight of silica fume, 1 to 10 parts by weight of fiber reinforcement, 30 to 50 parts by weight of aggregate, 0.5 to 2.0 parts by weight of anti-shrinkage , 0.1 to 2.0 parts by weight of antifoam, 0.5 to 10 parts by weight of an expanding agent, 1 to 10 parts by weight of a powdered silicone water repellent, 0.01 to 1.0 parts by weight of soluble silicate, 0.01 to 0.12 parts by weight of nitrite ions, and 0.01 to 0.5 parts by weight of ionized lithium It provides a crack repair agent composition for concrete structures.
본 발명의 일 실시예에 있어서, 상기 시멘트는 포틀랜트 시멘트, 슬래그 시멘트, 알루미나 시멘트 및 초속경 시멘트 중에서 선택된 1 종 또는 2종 이상의 혼합 시멘트인 것을 특징으로In an embodiment of the present invention, the cement is one or two or more mixed cements selected from portland cement, slag cement, alumina cement, and ultrafast cement.
또한, 본 발명의 일 실시예에 있어서, 상기 골재는 평균직경이 50~200㎛이며, 절건 비중이 0.7~1.4인 다공성 경량 골재인 것을 특징으로 한다. In addition, in an embodiment of the present invention, the aggregate is characterized in that it is a porous lightweight aggregate having an average diameter of 50 to 200 μm and an absolute dry weight of 0.7 to 1.4.
또한, 본 발명의 일 실시예에 있어서, 상기 섬유보강재는 폴리프로필렌 섬유, 폴리비닐알코올 섬유, 나일론 섬유 및 폴리에스테르 섬유 중에서 선택된 1종 또는 2종 이상의 혼합물로서 길이가 0.1~5.0mm 범위에 드는 것을 특징으로 한다. In addition, in an embodiment of the present invention, the fiber reinforcement is one or a mixture of two or more selected from polypropylene fibers, polyvinyl alcohol fibers, nylon fibers, and polyester fibers, having a length in the range of 0.1 to 5.0 mm. It is characterized.
또한, 본 발명의 일 실시예에 있어서, 상기 가용성 규산염은 규산소다, 규산칼륨, 콜로이달 실리카, 가용성실리카, 변성실리케이트, 실리카졸 및 실리카겔의 수용성 규산 중에서 선택되는 1종 또는 2종 이상의 혼합물인 것을 특징으로 한다. In addition, in an embodiment of the present invention, the soluble silicate is one or a mixture of two or more selected from sodium silicate, potassium silicate, colloidal silica, soluble silica, modified silicate, silica sol, and water-soluble silicic acid of silica gel. It is characterized.
또한, 본 발명의 일 실시예에 있어서, 상기 아질산 이온은 아질산 칼슘, 아질산 리튬 및 아질산 나트륨 중에서 선택되는 1종 또는 2종 이상의 혼합물인 것을 특징으로 한다.In addition, in one embodiment of the present invention, the nitrite ion is characterized in that it is one or a mixture of two or more selected from calcium nitrite, lithium nitrite, and sodium nitrite.
상기 이온화 리튬은 수산화리튬, 산화리튬, 탄산리튬, 플루오르화리튬, 인산리튬, 염화리튬, 질산화리튬, 메틸리튬, 에틸리튬, 알킬리튬, 에틸리튬 및 리튬 실리케이트 중 1종 또는 2종 이상을 용매에 이온화한 것을 사용하는 것을 특징으로 한다. The ionized lithium is one or two or more of lithium hydroxide, lithium oxide, lithium carbonate, lithium fluoride, lithium phosphate, lithium chloride, lithium nitrate, methyl lithium, ethyl lithium, alkyl lithium, ethyl lithium, and lithium silicate in a solvent. It is characterized by using ionized ones.
또한, 본 발명의 일 실시예에 있어서, 상기 균열 보수제 조성물에 실리카 분말과 팽창성 흑연의 혼합물로 이루어진 기능성 충전제를 추가로 포함하는 것을 특징으로 한다.In addition, in an embodiment of the present invention, the crack repair agent composition further comprises a functional filler made of a mixture of silica powder and expandable graphite.
또한, 상기 과제를 달성하기 위하여 본 발명은In addition, in order to achieve the above object, the present invention
(a) 콘크리트 구조물의 균열 상태를 조사하여 이물질을 제거하고 표면을 정리하는 단계;(a) inspecting the crack state of the concrete structure to remove foreign substances and clean the surface;
(b) 상기 정리된 콘크리트 구조물의 표면에 균열 보수재로써 본 발명에 따른 상기 콘크리트 구조물용 균열 보수제 조성물을 뿜칠 미장하는 단계; 및 (b) plastering by spraying the crack repair agent composition for concrete structures according to the present invention as a crack repair material on the surface of the organized concrete structure; And
(c) 상기 뿜칠 미장된 표면에 마감재를 코팅하여 표면을 정리하는 단계;를 포함하는 것을 특징으로 하는 콘크리트 구조물의 균열 보수 공법을 제공한다.(c) cleaning the surface by coating a finishing material on the sprayed plastered surface; it provides a crack repair method for a concrete structure comprising a.
본 발명의 일 실시예에 있어서, 상기 마감재는 폴리비닐부티랄 수지 100 중량부, 실란 화합물 10~20 중량부, 붕산염 화합물 5~10 중량부, 폴리포스페이트 1~5 중량부, 인산 1~5 중량부 및 페놀수지 1~5 중량부를 포함하여 구성되는 것을 특징으로 한다. In one embodiment of the present invention, the finishing material is 100 parts by weight of polyvinyl butyral resin, 10 to 20 parts by weight of silane compound, 5 to 10 parts by weight of borate compound, 1 to 5 parts by weight of polyphosphate, 1 to 5 parts by weight of phosphoric acid It is characterized in that it is composed of parts and 1 to 5 parts by weight of a phenolic resin.
본 발명에 따른 방수성능 및 내구성이 향상된 콘크리트 구조물용 균열 보수제 및 이를 이용한 콘크리트 구조물 균열 보수 공법의 특징 및 장점을 설명하면 다음과 같다. The characteristics and advantages of the crack repair agent for concrete structures with improved waterproof performance and durability according to the present invention, and the concrete structure crack repair method using the same are as follows.
1. 우선, 발수 효과를 높이고 흡수율을 낮추어 내구성을 향상시킬 수 있도록 발수성을 갖는 성분을 균열 보수제 조성물에 포함시킴으로써 초기 및 장기 내구성, 방수성, 내수성 및 내후성을 우수하게 유지할 수 있으며, 콘크리트 구조물과의 친화성이 우수하여 대상면과의 접착력이 좋고, 또한 사용 후에 수축 또는 변형이 발생하지 않아 형태 안정성도 우수하다. 1. First of all, it is possible to maintain excellent initial and long-term durability, waterproofness, water resistance and weather resistance by including a component having water repellency in the crack repair agent composition to improve durability by increasing the water repellency and lowering the water absorption rate. It has excellent chemical conversion and good adhesion to the target surface, and also has excellent shape stability as no shrinkage or deformation occurs after use.
2. 또한, 건조 수축이나 열팽창에 의한 부가적인 응력이나 균열의 발생이 없어 내구성이 우수하고 방수 효과가 뛰어나며 작업성이 좋은 동시에 건조 시간은 최단시간에 진행할 수 있으므로 공기를 단축할 수 있는 효과도 있다. 2. In addition, since there is no occurrence of additional stress or cracks due to drying shrinkage or thermal expansion, it has excellent durability, excellent waterproofing effect, good workability, and at the same time drying time can proceed in the shortest time, so it has the effect of shortening the air. .
3. 보수제 조성물에 섬유보강재를 혼입함으로써 친환경성, 내화학성, 내염성, 내구성, 소성균열 저항성을 향상시킬 수 있으며, 또한, 인장강도 및 충격저항성 향상과 동시에 우수한 휨강도 발현과 친수성 섬유로 인한 뛰어난 수밀성, 부착성 및 내구성으로 인해 습한 면, 노출면, 지하면 등 시공 장소의 제약이 없이 시공이 가능한 장점이 있다. 3. By incorporating a fiber reinforcement into the repair agent composition, it is possible to improve eco-friendliness, chemical resistance, flame resistance, durability, and plastic crack resistance. In addition, excellent flexural strength and excellent watertightness due to hydrophilic fibers, while improving tensile strength and impact resistance, Due to its adhesion and durability, there is an advantage that it can be constructed without restrictions on the construction location such as a wet surface, an exposed surface, and an underground surface.
4. 따라서 우수한 보수 및 보강 효과를 발휘하므로 교량이나 터널, 복개 구조물 및 기타 철근 콘크리트 구조물의 균열 보수 효과가 뛰어난 장점이 있고 수축이 적고 수밀성이 우수하므로 지붕 슬래브 방수, 수영장, 정수장 등의 지수 구조물에도 적용이 가능한 장점이 있다. 4. Therefore, it exhibits excellent repair and reinforcement effect, so it has the advantage of excellent crack repair effect on bridges, tunnels, covered structures and other reinforced concrete structures, and has low shrinkage and excellent watertightness, so it is also used for waterproof structures such as roof slab waterproofing, swimming pools, and water purification plants. There is an advantage that can be applied.
이하에서는 본 발명에 대하여 더욱 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail.
상기한 바와 같이 본 발명에 따른 콘크리트 구조물용 균열 보수제 조성물은 시멘트 100 중량부에 대하여 폴리머 1~10 중량부, 플라이애쉬 0.1~7 중량부, 실리카 흄 0.1~8 중량부, 섬유보강재 1~10 중량, 골재 30~50 중량부, 수축방지제 0.5~2.0 중량부, 소포제 0.1~2.0 중량부, 팽창제 0.5~10 중량부, 분말형 실리콘 발수제 1~10 중량부, 가용성규산염 0.01~1.0 중량부, 아질산 이온 0.01~0.12 중량부 및 이온화 리튬 0.01~0.5 중량부를 포함하여 구성된다. As described above, the crack repair agent composition for concrete structures according to the present invention is 1 to 10 parts by weight of polymer, 0.1 to 7 parts by weight of fly ash, 0.1 to 8 parts by weight of silica fume, 1 to 10 parts by weight of fiber reinforcement based on 100 parts by weight of cement. , Aggregate 30 to 50 parts by weight, Shrinkage inhibitor 0.5 to 2.0 parts by weight, Defoamer 0.1 to 2.0 parts by weight, Expansion agent 0.5 to 10 parts by weight, Powdered silicone water repellent 1 to 10 parts by weight, Soluble silicate 0.01 to 1.0 parts by weight, Nitrite ion It is composed of 0.01 to 0.12 parts by weight and 0.01 to 0.5 parts by weight of ionized lithium.
이하에서는, 상기 본 발명에 따른 콘크리트 구조물용 균열 보수제 조성물을 구성하는 각 성분에 관하여 구체적으로 설명한다.Hereinafter, each component constituting the crack repair agent composition for a concrete structure according to the present invention will be described in detail.
먼저, 본 발명에서 상기 시멘트는 포틀랜트 시멘트, 슬래그 시멘트, 알루미나 시멘트 및 초속경 시멘트 중에서 선택된 1 종 또는 2종 이상의 혼합 시멘트를 사용할 수 있으며, 바람직하게는 포틀랜드 시멘트이다. 구체적으로 포틀랜드 시멘트의 경우도 주요 성분이 C3S 51%, C2S 25%, C3A 9%, C4AF 9%, CaSO4 4% 정도이며, 비표면적은 3,300cm2/g 전후인 것을 사용하는 것이 바람직하다.First, in the present invention, the cement may be one or two or more mixed cements selected from Portland cement, slag cement, alumina cement, and ultra-fast cement, and preferably Portland cement. Specifically, in the case of Portland cement, the main components are C 3 S 51%, C 2 S 25%, C 3 A 9%, C 4 AF 9%, and CaSO 4 4%, and the specific surface area is around 3,300 cm 2 /g. It is preferable to use one.
혼합 시멘트를 사용할 경우에는 포틀랜트 시멘트 40~70 중량%, 슬래그 시멘트 20 ~ 40 중량%, 알루미나 시멘트 5 ~ 25 중량% 및 잔량의 속경성 시멘트를 포함할 수 있다. When mixed cement is used, 40 to 70% by weight of Portland cement, 20 to 40% by weight of slag cement, 5 to 25% by weight of alumina cement, and the remaining amount of fast-setting cement may be included.
이 중에서 슬래그 시멘트는 수산화칼슘이나 황산염의 자극작용에 의한 수화열에 의한 온도상승 억제, 알칼리 실리카반응의 억제, 황산염 및 해수에 대한 화학저항성, 염화물 이온이나 산소 침투 저항성을 향상시키는 역할을 한다.Among them, slag cement plays a role in inhibiting temperature rise due to heat of hydration due to the stimulation of calcium hydroxide or sulfate, inhibiting alkali silica reaction, chemical resistance to sulfate and seawater, and resistance to chloride ion or oxygen penetration.
또한, 알루미나 시멘트는 보통 포틀랜드 시멘트에 비해 알루미나 함량이 상대적으로 높은 시멘트로서, 화학적 저항성이 우수하며, 산성 분위기 하에서 사용할 수 있는 장점이 있으며, 경화시간이 짧은 조강 시멘트 일종으로서, 보통 포틀랜드 시멘트와 적정 비율로 사용한다. In addition, alumina cement is a cement having a relatively high alumina content compared to ordinary Portland cement, has excellent chemical resistance, has the advantage of being able to be used in an acidic atmosphere, and is a kind of crude steel cement that has a short hardening time. Use as.
또한, 초속경 시멘트는 무수석고와 50 중량% 이상의 알루미나 또는 칼슘설포알루미네이트(CSA)를 포함하는 것으로서 초기 부착성이 우수한 것을 사용하는 것이 바람직하다. In addition, it is preferable to use an ultra-fast-hard cement having excellent initial adhesion, as it contains anhydrous gypsum and 50% by weight or more of alumina or calcium sulfoaluminate (CSA).
본 발명에서 상기 폴리머는 모르타르 성분 간 상용성, 부착성을 증대시켜서 모르타르의 물성을 향상시키는 역할을 하며, 폴리비닐아세테이트, 폴리비닐아세테이트 실란 말단화 중합체, 폴리비닐에스테르 실란 말단화 중합체, 메타크릴산 메틸-아크릴산 부틸 및 스티렌-부타디엔 고무 라텍스 중에서 선택된 1종 이상을 사용할 수 있으며, 바람직하게는 폴리비닐아세테이트, 메타크릴산 메틸-아크릴산 부틸 및 스티렌-부타디엔 고무 라텍스 중에서 선택된 1종 이상을 사용할 수 있다. 본 발명에서 상기 폴리머의 사용량은 상기 시멘트 100 중량부에 대하여 1 내지 10 중량부의 범위에서 사용하는 것이 바람직하다. In the present invention, the polymer serves to improve the physical properties of the mortar by increasing the compatibility and adhesion between the mortar components, and polyvinyl acetate, polyvinyl acetate silane terminated polymer, polyvinyl ester silane terminated polymer, methacrylic acid At least one selected from methyl-butyl acrylate and styrene-butadiene rubber latex may be used, and preferably at least one selected from polyvinyl acetate, methyl methacrylate-butyl acrylate, and styrene-butadiene rubber latex may be used. In the present invention, the amount of the polymer is preferably used in the range of 1 to 10 parts by weight based on 100 parts by weight of the cement.
본 발명에서 상기 플라이애쉬는 화력발전소 등의 연소보일러에서 부산되는 석탄재로서 연소 폐가스 중에 포함되어 있는 재료 집진기에 의해 회수한 미세한 입상의 난사를 말한다. 이러한 플라이애쉬는 콘크리트의 유동성을 향상시키고 블리딩 현상을 감소시키며, 알카리 골재반응을 억제하고 콘크리트의 수밀성을 향상시키는 역할을 한다. 본 발명에서 상기 플라이애쉬의 사용량은 상기 시멘트 100 중량부에 대하여 0.1 내지 7 중량부의 범위에서 사용하는 것이 바람직하다. In the present invention, the fly ash refers to fine granular spatter recovered by a material dust collector contained in combustion waste gas as coal ash produced by a combustion boiler such as a thermal power plant. This fly ash improves the fluidity of concrete, reduces bleeding, inhibits alkali aggregate reaction, and improves the watertightness of concrete. In the present invention, the amount of fly ash is preferably used in the range of 0.1 to 7 parts by weight based on 100 parts by weight of the cement.
본 발명에서 상기 실리카 흄(Silica fume)은 평균 입경 0.1~0.5 mm 정도로 이루어진 완전 구형에 가까운 입자로서 비정질의 활성 실리카이며, 아래의 화학식에서와 같이 수산화칼슘과 반응하여 상온에서 함수 규산 칼슘으로 변화함으로써 수퍼 포졸란 성질을 띤다. In the present invention, the silica fume is an amorphous activated silica as particles having an average particle diameter of about 0.1 to 0.5 mm, and is amorphous active silica, and reacts with calcium hydroxide as in the following formula to change to hydrated calcium silicate at room temperature. It has pozzolanic properties.
3CaOSiO2 + H2O → C-S-H(시멘트겔) + Ca(OH)2 3CaOSiO 2 + H 2 O → CSH (cement gel) + Ca(OH) 2
본 발명에서 상기 균열 보수제 조성물에 상기 실리카 흄을 첨가하는 이유는, 구상 입자에 의한 볼 베어링 효과로 분산성 및 감수 효과를 향상시키고 시멘트 입자 사이에 실리카 흄의 충전 효과로 수밀성 향상 및 고강도화, 그리고 숏크리트의 부착성 향상으로 그라운드량 감소, 알칼리 실리카 반응 억제 및 화학적 저항성 향상 등의 효과가 있기 때문이다. 본 발명에서 상기 실리카 흄의 사용량은 상기 시멘트 100 중량부에 대하여 0.1 내지 8 중량부의 범위에서 사용하는 것이 바람직하다. The reason for adding the silica fume to the crack repair agent composition in the present invention is to improve the dispersibility and water-reducing effect by the ball bearing effect by spherical particles, and to improve water tightness and strength by the filling effect of silica fume between cement particles, and shotcrete This is because there are effects of reducing the amount of ground, inhibiting alkali silica reaction, and improving chemical resistance by improving the adhesion of In the present invention, the amount of silica fume is preferably used in the range of 0.1 to 8 parts by weight based on 100 parts by weight of the cement.
본 발명에서 상기 섬유보강재는 균열 보수제 조성물의 유동성을 향상시키고 균열 보수제 조성물의 점성을 높게 하여 분리를 방지하며 자체의 부착력으로 인해 시공하고자 하는 콘크리트 구조물과의 부착 성능을 향상시키면서, 휨 강도 및 모르타르의 표면 경도를 증가시키는 한편, 피막 형성에 의한 각종 열화 인자 및 수분의 침투를 저하시켜 중성화 방지, 화학적 침식 방지 및 보수 후 철근의 부식을 방지하도록 하는 역할을 한다. 본 발명에서 섬유보강재는 폴리프로필렌 섬유, 폴리비닐알코올 섬유, 나일론 섬유 및 폴리에스테르 섬유 중에서 선택된 1종 또는 2종 이상의 혼합물로서 길이가 0.1~5.0mm 범위에 드는 것을 사용하는 것이 바람직하다.In the present invention, the fiber reinforcement improves the fluidity of the crack repair agent composition, prevents separation by increasing the viscosity of the crack repair agent composition, and improves the adhesion to the concrete structure to be constructed due to its own adhesion, while improving the flexural strength and mortar. While increasing the surface hardness, it plays a role of preventing neutralization, chemical erosion, and corrosion of rebar after repair by reducing the penetration of various deterioration factors and moisture due to film formation. In the present invention, the fiber reinforcement is preferably one or a mixture of two or more selected from polypropylene fibers, polyvinyl alcohol fibers, nylon fibers, and polyester fibers having a length of 0.1 to 5.0 mm.
본 발명에서 상기 섬유보강재는 상기 시멘트 100 중량부에 대하여 1 내지 10 중량부의 범위에서 사용하는 것이 바람직하다. In the present invention, the fiber reinforcement is preferably used in the range of 1 to 10 parts by weight based on 100 parts by weight of the cement.
본 발명에서 상기 골재는 평균직경이 50~200㎛이며, 절건 비중이 0.7~1.4인 다공성 경량 골재를 사용하는 것이 바람직하다. 구체적으로는 상기 경량골재는 다공성 필라이트(phyllite)를 사용하는 것이 바람직하며, 상기 다공성 필라이트계 경량 골재는 다공성으로 인해 물비가 증대될 수 있고, 흐름성을 좋게 하여 발수성 균열 보수제 조성물을 통한 콘크리트 구조물의 시공시 기계화 시공이 가능하도록 할 수 있다. 본 발명에서 상기 골재의 사용량은 상기 시멘트 100 중량부에 대하여 30 내지 50 중량부의 범위에서 사용하는 것이 바람직하다. In the present invention, the aggregate has an average diameter of 50 to 200 μm, and it is preferable to use a porous lightweight aggregate having an absolute dry weight of 0.7 to 1.4. Specifically, it is preferable to use a porous phyllite as the lightweight aggregate, and the porous phyllite-based lightweight aggregate can increase the water ratio due to porosity, and improve the flowability of concrete through a water-repellent crack repair agent composition. Mechanized construction can be made possible when constructing a structure. In the present invention, the amount of the aggregate is preferably used in the range of 30 to 50 parts by weight based on 100 parts by weight of the cement.
본 발명에서 상기 수축 방지제는 네오펜틸글리콜(Neopentyl glycol)을 사용하는 것이 바람직하다. 상기 네오펜틸글리콜은 대칭형의 2개의 알코올 기와 알파 카본 위치에 2개의 메틸기를 가지고 있어 에스테르화 반응에 탁월한 반응성을 보여준다. 본 발명에서 상기 네오펜틸글리콜은 백색 결정체 100%로 이루어진 플레이크(flake) 형태 또는 네오펜틸글리콜 90% 및 물 10%로 이루어진 슬러리(slurry) 형태로 사용될 수 있다. 본 발명에서 상기 수축 방지제의 사용량은 상기 시멘트 100 중량부에 대하여 0.2 내지 2.0 중량부의 범위에서 사용하는 것이 바람직하다. In the present invention, the anti-shrinkage agent is preferably neopentyl glycol. The neopentyl glycol has two symmetrical alcohol groups and two methyl groups at the alpha carbon position, showing excellent reactivity in the esterification reaction. In the present invention, the neopentyl glycol may be used in the form of a flake made of 100% white crystals or a slurry made of 90% neopentyl glycol and 10% water. In the present invention, the amount of the shrinkage inhibitor is preferably used in the range of 0.2 to 2.0 parts by weight based on 100 parts by weight of the cement.
본 발명에서 상기 소포제는 모르타르 내의 거대 기공을 제거하여 모르타르의 강도와 외관을 좋게 하기 위하여 사용되는 성분으로, 일반적으로 휘발성이 적고 확산력이 큰 기름상의 물질 또는 수용성이 계면활성제가 이용되며, 예로는 등유, 유동 파라핀 등과 같은 광유계 소포제; 동식물유, 참기름, 피마자유와 이들의 알킬렌옥사이드 부가물 등과 같은 유지계 소포제; 올레인산, 스테아린산과 이들의 알킬렌옥사이드 부가물 등과 같은 지방산계 소포제; 글리세린모노리시놀레이트, 알케닐호박산 유동체, 솔비톨모노라울레이트, 솔비톨트리올레이트, 천연 왁스 등과 같은 지방산 에스테르계 소포제; 폴리옥시알킬렌류, (폴리)옥시알킬에테르류, 아세틸렌에테르류, (폴리)옥시알킬렌지방산에스테르류, (폴리)옥시알킬렌솔비탄지방산에스테르류, (폴리)옥시알킬렌알킬(아릴)에테르황산에스테르염류, (폴리)옥시알킬렌알킬인산에스테르류, (폴리)옥시알킬렌알킬아민류, (폴리)옥시알킬렌아미드 등과 같은 옥시알킬렌계 소포제; 옥틸알콜, 헥사데실알콜, 아세틸렌알콜, 글리콜류 등과 같은 알콜계 소포제; 아크릴레이트폴리아민 등과 같은 아미드계 소포제; 인산트리부틸, 나트륨옥틸포스페이트 등과 같은 인산에스테르계 소포제; 알루미늄스테아레이트, 칼슘올레이트 등과 같은 금속비누계 소포제; 디메틸실리콘유, 실리콘 페이스트, 실리콘 에멀젼, 유기변성폴리실록산(디메틸폴리실록산 등의 폴리오르가노실록산), 플루오로실리콘유 등과 같은 실리콘계 소포제를 사용할 수 있다. 본 발명에서 상기 소포제는 시멘트 100 중량부에 대하여 0.1 내지 2.0 중량부의 범위에서 사용되는 것이 바람직하다. In the present invention, the antifoaming agent is a component used to improve the strength and appearance of the mortar by removing macropores in the mortar. In general, an oily substance having low volatility and high diffusion power or a water-soluble surfactant is used, for example, kerosene Mineral oil-based antifoaming agents such as liquid paraffin; Oil and fat antifoaming agents such as animal and vegetable oil, sesame oil, castor oil and alkylene oxide adducts thereof; Fatty acid-based antifoaming agents such as oleic acid, stearic acid, and alkylene oxide adducts thereof; Fatty acid ester antifoaming agents such as glycerin monoricinolate, alkenyl succinic acid fluid, sorbitol monoraulate, sorbitol trioleate, and natural wax; Polyoxyalkylenes, (poly)oxyalkyl ethers, acetylene ethers, (poly)oxyalkylene fatty acid esters, (poly)oxyalkylene sorbitan fatty acid esters, (poly)oxyalkylenealkyl (aryl) ethers Oxyalkylene antifoaming agents such as sulfate ester salts, (poly) oxyalkylene alkyl phosphate esters, (poly) oxyalkylene alkyl amines, and (poly) oxyalkylene amides; Alcohol-based antifoaming agents such as octyl alcohol, hexadecyl alcohol, acetylene alcohol, and glycols; Amide antifoaming agents such as acrylate polyamine; Phosphate ester antifoaming agents such as tributyl phosphate and sodium octyl phosphate; Metal soap-based antifoaming agents such as aluminum stearate and calcium oleate; Silicone antifoaming agents such as dimethyl silicone oil, silicone paste, silicone emulsion, organically modified polysiloxane (polyorganosiloxane such as dimethylpolysiloxane), fluorosilicone oil, and the like can be used. In the present invention, the antifoaming agent is preferably used in the range of 0.1 to 2.0 parts by weight based on 100 parts by weight of cement.
본 발명에서 상기 팽창제는 칼슘 설포알루미네이트(CSA)와 석고가 4~9 : 1~6의 중량비로 혼합하여 제조한 것을 사용할 수 있으며, 상기 석고는 인산 무수석고 또는 불산 무수석고 중에서 선택하여 사용할 수 있다. 본 발명에서 상기 팽창제는 시멘트 100 중량부에 대하여 0.5 내지 10.0 중량부의 범위에서 사용되는 것이 바람직하다. In the present invention, the expanding agent may be prepared by mixing calcium sulfoaluminate (CSA) and gypsum in a weight ratio of 4 to 9: 1 to 6, and the gypsum may be selected from phosphate anhydride or hydrofluoric anhydride. have. In the present invention, the expanding agent is preferably used in the range of 0.5 to 10.0 parts by weight based on 100 parts by weight of cement.
또한, 본 발명에서 상기 분말형 실리콘 발수제는 균열 보수제 조성물의 발수성을 향상시키고 흡수율을 감소시키는 역할을 하며, 이에 따라 시공성 및 작업성을 향상시키는 성분으로서, 구체적으로는 n-옥틸트리에톡시실란(n-octyltriethoxysilane)을 사용하는 것이 바람직하다. 본 발명에서 상기 분말형 실리콘 발수제는 시멘트 100 중량부에 대하여 1 내지 10 중량부의 범위에서 사용되는 것이 바람직하다. In addition, in the present invention, the powdered silicone water repellent serves to improve the water repellency of the crack repair agent composition and reduce the water absorption rate, and accordingly, as a component that improves workability and workability, specifically, n-octyltriethoxysilane ( It is preferred to use n-octyltriethoxysilane). In the present invention, the powdered silicone water repellent is preferably used in the range of 1 to 10 parts by weight based on 100 parts by weight of cement.
본 발명에서 상기 가용성 규산염은 예로서는 규산소다, 규산칼륨, 규산나트륨, 콜로이달 실리카, 가용성실리카, 변성실리케이트, 실리카졸 및 실리카겔의 수용성 규산 중에서 선택되는 1종 또는 2종 이상의 혼합물을 사용할 수 있다. In the present invention, the soluble silicate may be one or a mixture of two or more selected from sodium silicate, potassium silicate, sodium silicate, colloidal silica, soluble silica, modified silicate, silica sol, and water-soluble silicic acid of silica gel.
본 발명에서 상기 아질산 이온은 아질산 칼슘, 아질산 리튬 및 아질산 나트륨 중에서 선택되는 1종 또는 2종 이상의 혼합물을 사용할 수 있다. In the present invention, the nitrite ion may be one or a mixture of two or more selected from calcium nitrite, lithium nitrite, and sodium nitrite.
본 발명에서 상기 이온화 리튬은 수산화리튬, 산화리튬, 탄산리튬, 플루오르화리튬, 인산리튬, 염화리튬, 질산화리튬, 메틸리튬, 에틸리튬, 알킬리튬, 에틸리튬 및 리튬 실리케이트 중 1종 또는 2종 이상을 용매에 이온화한 것을 사용할 수 있다. In the present invention, the ionized lithium is one or two or more of lithium hydroxide, lithium oxide, lithium carbonate, lithium fluoride, lithium phosphate, lithium chloride, lithium nitrate, methyl lithium, ethyl lithium, alkyl lithium, ethyl lithium, and lithium silicate. What was ionized in a solvent can be used.
상기 가용성규산염, 아질산 이온 및 이온화 리튬은 조인트 대상 콘크리트 구조물 표면의 방수 또는 발수 효과를 강화하는 역할을 하며, 콘크리트 구조물 표면에 함침되어 상온에서 수밀하게 방수층을 형성함으로써 콘크리트 구조물과의 부착성 및 내구성을 증가시킬 수 있다. The soluble silicate, nitrite ions and lithium ionized play a role in reinforcing the waterproof or water repellent effect of the surface of the concrete structure to be jointed, and by impregnating the surface of the concrete structure to form a watertight waterproof layer at room temperature, adhesion and durability to the concrete structure are improved. Can increase.
본 발명에서 상기 균열 보수제 조성물에는 기능성 충전제를 추가로 포함할 수 있다. In the present invention, the crack repair agent composition may further include a functional filler.
상기 기능성 충전제로는 실리카 분말과 팽창성 흑연의 혼합물을 사용할 수 있다.As the functional filler, a mixture of silica powder and expandable graphite may be used.
상기 실리카 분말로서는 콜로이달실리카, 흄드실리카 및 마이크로나이즈드 실리카 중 선택된 1종 또는 2종 이상의 혼합물을 이용할 수 있다. As the silica powder, one or a mixture of two or more selected from colloidal silica, fumed silica, and micronized silica may be used.
상기 기능성 충진제는 바인딩 효과를 더욱 증대시키는 역할을 함으로써 보수 효과를 증대시키는 역할을 한다. 본 발명에서 상기 실리카 분말과 팽창성 흑연의 혼합 비율은 100:50~200 중량비로 혼합되는 것이 바람직하다. The functional filler serves to increase the repair effect by further increasing the binding effect. In the present invention, the mixing ratio of the silica powder and the expandable graphite is preferably mixed in a weight ratio of 100:50 to 200.
또한, 상기 기능성 충진제를 사용할 때는 분말을 바로 사용하는 것도 가능하지만, 표면을 처리하여 유기실란으로 처리하여 코팅함으로써 바인딩 효과 증대로 인한 내구성 증대 효과를 볼 수 있다. In addition, when using the functional filler, it is possible to use the powder directly, but by treating the surface and coating it with an organosilane, it is possible to increase the durability due to increased binding effect.
즉, 실리카 분말 단독 또는 팽창성 흑연 분말의 혼합물이 용매에 분산된 콜로이드상 요액을 유기 실란에 분산시킨 후 약 1~10시간 동안 교반하여 처리할 수 있다.That is, the silica powder alone or a mixture of expandable graphite powder may be treated by dispersing a colloidal solution in which a solvent is dispersed in an organic silane and then stirring for about 1 to 10 hours.
구체적으로, 실리카 분말 단독 또는 팽창성 흑연 분말의 혼합물 용액 100 중량부를 기준으로 유기 실란 약 0.1~50중량부를 상기 용액에 첨가하여 용액 내에서 분말 입자 표면에 유기기를 형성하고 반응기를 통과시켜 탈수 및 축합반응을 통해 유기기로 표면 처리된 분말을 형성시킨다. 이때 상기 용액은 실리카 분말이나 팽창성 흑연 분말이 물이나 알코올과 같은 용매 내에 콜로이드 상태로 분산되어 있는 것으로서 콜로이드 용액 상태로 유기 실란과 접촉하는 것이 바람직하다.Specifically, about 0.1 to 50 parts by weight of an organic silane is added to the solution based on 100 parts by weight of a silica powder alone or a mixture solution of expandable graphite powder to form an organic group on the surface of the powder particles in the solution and pass through the reactor to dehydration and condensation reaction. Through the organic group surface-treated powder is formed. In this case, the solution is that silica powder or expandable graphite powder is dispersed in a colloidal state in a solvent such as water or alcohol, and it is preferable to contact the organic silane in a colloidal solution state.
상기 유기실란의 구체적인 예로는 디메틸디메톡시실란, 메틸트리메톡시실란, 메틸트리에톡시실란, 테트라에톡시실란 등을 들 수 있다. 이 때 유기 실란으로 분말 표면을 처리하는 것은 상온에서 1~10 시간 정도 교반 처리하여 유기기가 형성된 무기물을 형성하고 이를 반응기에 통과시켜 형성한다. 이 때 상기 반응기는 가열장치로서 온도를 100 ~ 300℃로 승온하여 1~10시간 동안 용매와 유기기가 형성된 무기물을 탈수 및 축합반응시켜 표면 처리가 완료된 분말상의 무기물 입자를 제조할 수 있다.Specific examples of the organosilane include dimethyldimethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, and tetraethoxysilane. At this time, treating the surface of the powder with organic silane is formed by stirring at room temperature for about 1 to 10 hours to form an inorganic substance having an organic group and passing it through a reactor. In this case, the reactor is a heating device, and the temperature is raised to 100 to 300°C to dehydrate and condensate the inorganic material having a solvent and an organic group formed thereon for 1 to 10 hours to prepare powdery inorganic particles having a surface treatment.
이와 같이 제조되는 실리카 분말 및 팽창성 흑연 분말은 표면에 실란이 형성되어 있으므로 바인딩 효과가 우수하고 이에 따라 내구성이 더욱 향상될 수 있다. The silica powder and the expandable graphite powder prepared as described above have excellent binding effects because silane is formed on the surface thereof, and thus durability may be further improved.
본 발명에서 상기 기능성 충전제는 상기 균열 보수제 조성물 100 중량부를 기준으로 1~10 중량부의 범위로 포함되는 것이 바람직하다. In the present invention, the functional filler is preferably included in the range of 1 to 10 parts by weight based on 100 parts by weight of the crack repair agent composition.
또한, 본 발명은 상기와 같은 조성으로 얻어지는 균열 보수제 조성물에 필요에 따라 분산제 0.1 ~ 1.0 중량부, 지연제 0.01 ~ 1.0 중량부, 알칼리활성화제 0.1 ~ 1.0 중량부에서 선택되는 1종 이상의 첨가제를 더 포함할 수 있다.In addition, the present invention further comprises at least one additive selected from 0.1 to 1.0 parts by weight of a dispersant, 0.01 to 1.0 parts by weight of a retarder, and 0.1 to 1.0 parts by weight of an alkali activator, as needed, to the crack repair agent composition obtained with the above composition. Can include.
상기 분산제는 모르타르의 입자 표면에 흡착하여 입자 표면에 전하를 주어 입자들끼리 상호 반력을 일으키므로, 응집된 입자를 분산시켜 유동을 증가시켜 감수 효과로 인한 강도 증진이 가능하게 한다. 상기 분산제로서는 통상의 감수제를 사용할 수 있으며, 예를 들어 리그닌술포네이트, 폴리나프탈렌술포네이트, 폴리멜라민술포네이트 또는 폴리카복실레이트계 감수제로 이루어진 군으로부터 단독 또는 둘 이상 혼합 사용이 가능하다. 상기 분산제의 함량은 상기 시멘트 100 중량부에 대하여 0.1 ~ 1.0 중량부를 사용하는 것이 바람직하다.The dispersant adsorbs on the surface of the mortar particles and gives a charge to the surface of the particles, causing a mutual reaction between the particles, thereby dispersing the agglomerated particles to increase the flow, thereby enhancing the strength due to the water reducing effect. As the dispersant, a conventional water reducing agent may be used, and for example, it is possible to use alone or in combination of two or more from the group consisting of lignin sulfonate, polynaphthalene sulfonate, polymelamine sulfonate, or polycarboxylate-based water reducing agent. The content of the dispersant is preferably 0.1 to 1.0 parts by weight based on 100 parts by weight of the cement.
상기 지연제는 모르타르의 수화속도를 조정하여 일정기간 작업성을 확보할 목적으로 첨가될 수 있다. 지연제로는 붕산과 붕사, 붕산나트륨, 붕산칼륨과 같은 붕산염류, 글루콘산, 시트릭산, 타르타르산, 글루코헵톤산, 아라본산, 사과산 또는 구연산 및 이들의 나트륨, 칼륨, 칼슘, 마그네슘, 암모늄, 트리에탄올아민 등의 무기염 또는 유기염 등의 옥시카복실산; 글루코오스, 프럭토오스, 갈락토오스, 사카로오스, 크실로오스, 아비토오스, 리포오즈, 이성화당 등의 단당류나, 2당, 3당 등의 올리고당, 또는 덱스트린 등의 올리고당, 또는 덱스트란 등의 다당류, 이들을 포함하는 당밀류 등의 당류; 솔비톨 등의 당알콜; 규불화 마그네슘; 인산 및 그의 염 또는 붕산 에스테르류; 아미노카복실산과 그의 염; 알칼리 가용 단백질; 푸민산; 탄닌산; 페놀; 글리세린 등의 다가알콜; 아미노트리(메틸렌포폰산), 1-히드록시에틸리덴-1,1-디포스폰산, 에틸렌디아민테트라(메틸렌포스폰산), 디에틸렌트리아민펜타(메틸렌포스폰산) 및 이들의 알칼리 금속염, 알칼리토류 금속염 등의 포스폰산 및 그 유도체 등을 사용할 수 있다. 그 함량은 상기 시멘트 100 중량부를 기준으로 0.01 ~ 1.0 중량부를 첨가하는 것이 바람직하다.The retarder may be added for the purpose of securing workability for a certain period by adjusting the hydration rate of the mortar. As retarding agents, boric acid and borax, borates such as sodium borate, potassium borate, gluconic acid, citric acid, tartaric acid, glucoheptonic acid, arabonic acid, malic acid or citric acid and their sodium, potassium, calcium, magnesium, ammonium, triethanolamine Oxycarboxylic acids such as inorganic salts or organic salts such as; Monosaccharides such as glucose, fructose, galactose, saccharose, xylose, abitose, lipose, and isomerized sugar, oligosaccharides such as disaccharides and trisaccharides, or oligosaccharides such as dextrin, or polysaccharides such as dextran, Sugars such as molasses containing these; Sugar alcohols such as sorbitol; Magnesium silicide; Phosphoric acid and its salts or boric acid esters; Aminocarboxylic acids and salts thereof; Alkali-soluble protein; Fumic acid; Tannic acid; phenol; Polyhydric alcohols such as glycerin; Aminotri(methylenephosphonic acid), 1-hydroxyethylidene-1,1-diphosphonic acid, ethylenediaminetetra(methylenephosphonic acid), diethylenetriaminepenta(methylenephosphonic acid) and their alkali metal salts, alkalis Phosphonic acids, such as earth metal salts, and derivatives thereof can be used. The content is preferably 0.01 to 1.0 parts by weight based on 100 parts by weight of the cement.
상기 알칼리활성화제는 강도 발현에 영향을 미치는 성분으로, 알칼리 금속수산화물, 염화물, 황산화물 및 탄산화물에서 선택되는 하나 또는 둘 이상의 혼합물을 사용할 수 있고, 바람직하게는 탄산나트륨 및 탄산수소나타륨을 사용하는 것이 강도 발현 측면에서 유리하다. 본 발명에서 상기 알칼리활성화제의 함량은 상기 시멘트 100 중량부를 기준으로 0.1~1.0 중량부를 첨가하는 것이 바람직하다. The alkali activator is a component that affects the strength development, and one or a mixture of two or more selected from alkali metal hydroxides, chlorides, sulfur oxides and carbonates may be used, and sodium carbonate and sodium hydrogen carbonate are preferably used. It is advantageous in terms of strength development. In the present invention, the alkali activator is preferably added in an amount of 0.1 to 1.0 parts by weight based on 100 parts by weight of the cement.
또한, 본 발명에 따른 상기 균열 보수제 조성물에는 수중 콘크리트 구조물의 균열 보수를 위하여 수중불분리제를 0.1~3 중량부의 범위로 추가로 포함할 수 있다. 상기 수중불분리제는 수중에서 균열 보수제 조성물의 점성을 향상시켜 분해되는 것을 방지하기 위하여 첨가되는 것으로, 메틸셀룰로오스, 히드록시메틸셀룰로오스, 카복시메틸셀룰로오스와 같은 메틸계 셀룰로오스; 에틸셀룰로오스, 히드록시에틸셀룰로오스, 카복시에틸셀룰로오스와 같은 에틸계 셀룰로오스; 히드록시프로필셀룰로오스와 같은 프로필계 셀룰로오스에서 선택되는 셀룰로오스계 증점제를 사용할 수 있다. 그 함량은 상기 시멘트 100 중량부에 대하여 0.1 ~ 3 중량부로 포함되는 것이 적절한 점성을 발현하므로 바람직하다. 필요에 따라 수중에서의 점성을 더욱 증가시키기 위하여 수용성 아크릴계 수지 분말을 더 첨가할 수 있으며, 상기 수용성 아크릴계 수지 분말은 수중불분리제의 1 ~ 30 중량%로 사용하는 것이 바람직하다.In addition, the crack repair agent composition according to the present invention may further include an underwater non-separating agent in the range of 0.1 to 3 parts by weight for repair of the cracks of the underwater concrete structure. The non-separating agent in water is added to prevent decomposition by improving the viscosity of the crack repair agent composition in water, and includes methyl cellulose such as methyl cellulose, hydroxymethyl cellulose, and carboxymethyl cellulose; Ethyl cellulose such as ethyl cellulose, hydroxyethyl cellulose, and carboxyethyl cellulose; Cellulose-based thickeners selected from propyl-based cellulose such as hydroxypropyl cellulose can be used. The content is preferably contained in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of the cement, since it exhibits an appropriate viscosity. If necessary, in order to further increase the viscosity in water, a water-soluble acrylic resin powder may be further added, and the water-soluble acrylic resin powder is preferably used in an amount of 1 to 30% by weight of the water non-separating agent.
상기와 같이 얻어지는 본 발명에 따른 상기 균열 보수제 조성물을 이용하여 콘크리트 구조물의 균열 보수 시공을 수행할 수 있다. 이하에서는 이러한 콘크리트 구조물의 균열 보수 시공 방법에 관하여 상세히 설명한다. It is possible to perform crack repair construction of a concrete structure by using the crack repair agent composition according to the present invention obtained as described above. Hereinafter, a method of repairing and repairing the cracks of the concrete structure will be described in detail.
본 발명에 따른 콘크리트 구조물의 균열 보수 공법은 하기의 순서로 진행된다. 즉, The crack repair method of the concrete structure according to the present invention proceeds in the following order. In other words,
(a) 콘크리트 구조물의 균열 상태를 조사하여 이물질을 제거하고 표면을 정리하는 단계;(a) inspecting the crack state of the concrete structure to remove foreign substances and clean the surface;
(b) 상기 정리된 콘크리트 구조물의 표면에 균열 보수재로써 본 발명에 따른 상기 콘크리트 구조물용 균열 보수제 조성물을 뿜칠 미장하는 단계; 및 (b) plastering by spraying the crack repair agent composition for concrete structures according to the present invention as a crack repair material on the surface of the organized concrete structure; And
(c) 상기 뿜칠 미장된 표면에 마감재를 코팅하여 표면을 정리하는 단계;(c) cleaning the surface by coating a finishing material on the plastered surface to be sprayed;
이하에서는 상기 본 발명에 따른 콘크리트 구조물의 균열 보수 공법을 각 단계별로 나누어 상세히 설명한다. Hereinafter, the crack repair method of the concrete structure according to the present invention will be described in detail by dividing each step.
1. 콘크리트 구조물의 균열 상태 조사 단계1. Steps to investigate crack conditions in concrete structures
콘크리트 구조물의 균열 부위의 균열 상태, 즉 균열의 폭, 길이, 깊이, 형상 등을 초음파 탐지 장치 등의 장비를 이용하여 측정하고 데이터를 기록해 둔다. 이 후 균열선을 따라 표면의 이물질을 와이어 브러쉬(wire brush), 그라인더 등을 이용하여 표면을 정리한다. The crack condition of the crack area of the concrete structure, that is, the width, length, depth, shape, etc. of the crack is measured using equipment such as an ultrasonic detection device, and the data is recorded. After that, clean the surface along the crack line using a wire brush or grinder.
2. 균열 보수재 시공 단계2. Crack repair material construction stage
상기 정리된 콘크리트 구조물의 표면에 균열 보수재를 뿜칠 방법을 이용하여 미장 시공하는데 본 발명에서는 상기에서 설명된 균열 보수제 조성물을 균열 보수재로써 사용한다. 균열 보수재는 두께 약 1~10mm의 두께로 시공할 수 있다. Plastering is performed using a method of spraying a crack repair material on the surface of the concrete structure arranged above. In the present invention, the crack repair agent composition described above is used as a crack repair material. The crack repair material can be installed with a thickness of about 1 to 10 mm.
3. 마감재 코팅 단계3. Finishing material coating step
상기 균열 보수재를 시공하고 난 후 콘크리트 표면을 실링재로 실링한 후 마감재를 도포한 다음 양생한다. After installing the crack repair material, the concrete surface is sealed with a sealing material, and then the finish is applied and then cured.
본 발명에서 상기 마감재로는 폴리비닐부티랄 수지 100 중량부, 실란 화합물 10~20 중량부, 붕산염 화합물 5~10 중량부, 폴리포스페이트 1~5 중량부, 인산 1~5 중량부 및 페놀수지 1~5 중량부를 포함하여 구성되는 마감재를 사용하는 것이 바람직하다. In the present invention, the finishing material includes 100 parts by weight of a polyvinyl butyral resin, 10 to 20 parts by weight of a silane compound, 5 to 10 parts by weight of a borate compound, 1 to 5 parts by weight of polyphosphate, 1 to 5 parts by weight of phosphoric acid, and 1 It is preferable to use a finishing material comprising ~5 parts by weight.
상기 마감재는 보수 표면의 스케일을 방지하는 효과가 있다. The finishing material has an effect of preventing scale of the repair surface.
이하에서는 본 발명을 실시예예 의거하여 더욱 상세하게 설명한다. 그러나, 본 발명의 범위가 하기 실시예에 의해 제한되는 것은 아니다. Hereinafter, the present invention will be described in more detail based on examples. However, the scope of the present invention is not limited by the following examples.
[실시예][Example]
1. 제조예1. Manufacturing example
(제조예 1) 균열 보수제 조성물 제조(Production Example 1) Preparation of crack repair agent composition
포틀랜드 시멘트 100 중량부, 폴리비닐아세테이트 폴리머 5 중량부, 플라이애쉬 4 중량부, 실리카 흄 5 중량부, 섬유보강재(PP섬유 및 나일론 섬유의 혼합) 5 중량부, 평균직경이 약 100㎛이고 절건 비중이 0.9인 다공성 필라이트 35 중량부, 네오펜틸글리콜 수축방지제 1.2 중량부, 소포제 0.3 중량부, 칼슘 설포알루미네이트(CSA) 및 석고가 6:4의 비율로 혼합된 팽창제 8 중량부, n-옥틸트리에톡시실란 분말형 실리콘 방수제 2.5 중량부, 가용성규산염(규산소다) 0.5 중량부, 아질산 이온(아질산 리튬 및 아질산 나트륨의 혼합) 0.08 중량부 및 이온화 리튬(수산화리튬) 0.3 중량부를 혼합하여 혼합물을 얻었다. 여기에 소정량의 물을 혼합하여 균열 보수제 조성물을 제조하였다. Portland cement 100 parts by weight, polyvinyl acetate polymer 5 parts by weight, fly ash 4 parts by weight, silica fume 5 parts by weight, fiber reinforcement (mixture of PP fiber and nylon fiber) 5 parts by weight, average diameter is about 100㎛ and absolute dry specific gravity 35 parts by weight of a porous filler of 0.9, 1.2 parts by weight of neopentyl glycol anti-shrinkage agent, 0.3 parts by weight of antifoam, 8 parts by weight of an expanding agent in which calcium sulfoaluminate (CSA) and gypsum are mixed in a ratio of 6:4, n-jade A mixture was prepared by mixing 2.5 parts by weight of a tiltriethoxysilane powdered silicone waterproofing agent, 0.5 parts by weight of a soluble silicate (sodium silicate), 0.08 parts by weight of nitrite ions (mixture of lithium nitrite and sodium nitrite), and 0.3 parts by weight of ionized lithium (lithium hydroxide). Got it. A predetermined amount of water was mixed thereto to prepare a crack repair agent composition.
(제조예 2) 균열 보수제 조성물 제조(Production Example 2) Preparation of crack repair agent composition
포틀랜드 시멘트, 슬래그 시멘트, 알루미나 시멘트 및 초속경 시멘트를 각각 포틀랜트 시멘트 50 중량%, 슬래그 시멘트 30 중량%, 알루미나 시멘트 15 중량% 및 초속경 시멘트 5 중량%를 혼합한 혼합 시멘트 100 중량부, 폴리비닐아세테이트 폴리머 5 중량부, 플라이애쉬 4 중량부, 실리카 흄 5 중량부, 섬유보강재(PP섬유 및 나일론 섬유의 혼합) 9 중량부, 평균직경이 약 100㎛이고 절건 비중이 0.9인 다공성 필라이트 35 중량부, 네오펜틸글리콜 수축방지제 1.2 중량부, 소포제 0.3 중량부, 칼슘 설포알루미네이트(CSA) 및 석고가 6:4의 비율로 혼합된 팽창제 8 중량부, n-옥틸트리에톡시실란 분말형 실리콘 방수제 2.5 중량부, 가용성규산염(변성실리케이트) 0.5 중량부, 아질산 이온(아질산 칼륨 및 아질산 나트륨의 혼합) 0.08 중량부 및 이온화 리튬(탄산리튬의 용매 이온화 용액) 0.3 중량부를 혼합하여 혼합물을 얻었다. 여기에 소정량의 물을 혼합하여 균열 보수제 조성물을 제조하였다.Portland cement, slag cement, alumina cement, and ultrafast cement 100 parts by weight of a mixed cement of 50% by weight of Portland cement, 30% by weight of slag cement, 15% by weight of alumina cement and 5% by weight of ultrafast cement, polyvinyl 5 parts by weight of acetate polymer, 4 parts by weight of fly ash, 5 parts by weight of silica fume, 9 parts by weight of fiber reinforcement (mixture of PP fiber and nylon fiber), 35 parts by weight of porous fillite with an average diameter of about 100 μm and absolute dry specific gravity of 0.9 Parts, neopentyl glycol shrinkage inhibitor 1.2 parts by weight, antifoam agent 0.3 parts by weight, calcium sulfoaluminate (CSA) and gypsum mixed in a ratio of 6:4 expansion agent 8 parts by weight, n-octyltriethoxysilane powdered silicone waterproofing agent 2.5 parts by weight, 0.5 parts by weight of soluble silicate (modified silicate), 0.08 parts by weight of nitrite ions (mixture of potassium nitrite and sodium nitrite), and 0.3 parts by weight of ionized lithium (solvent ionization solution of lithium carbonate) were mixed to obtain a mixture. Here, a predetermined amount of water was mixed to prepare a crack repair agent composition.
(제조예 3) 균열 보수제 조성물 제조(Production Example 3) Preparation of crack repair agent composition
포틀랜드 시멘트 100 중량부, 폴리비닐아세테이트 폴리머 5 중량부, 플라이애쉬 4 중량부, 실리카 흄 5 중량부, 섬유보강재(PP섬유 및 나일론 섬유의 혼합) 5 중량부, 평균직경이 약 100㎛이고 절건 비중이 0.9인 다공성 필라이트 35 중량부, 네오펜틸글리콜 수축방지제 1.2 중량부, 소포제 0.3 중량부, 칼슘 설포알루미네이트(CSA) 및 석고가 6:4의 비율로 혼합된 팽창제 8 중량부, n-옥틸트리에톡시실란 분말형 실리콘 방수제 2.5 중량부, 가용성규산염(규산소다) 0.5 중량부, 아질산 이온(아질산 리튬 및 아질산 나트륨의 혼합) 0.08 중량부 및 이온화 리튬(수산화리튬) 0.3 중량부를 혼합하여 혼합물을 얻었다. 여기에 실리카분말(콜로이달실리카) 및 팽창성 흑연 분말이 100:100의 비율로 혼합되어 이루어진 기능성 충전제(실리카분말과 팽창성 흑연 분말의 혼합물 수용액 100 중량부를 유기실란을 10 중량부 첨가하여 탈수 및 축합반응하여 표면 처리된 분말)를 상기 얻어진 균열 보수제 조성물 100중량부 기준 약 5 중량부를 투입하고 소정량의 물을 혼합하여 균열 보수제 조성물을 제조하였다. Portland cement 100 parts by weight, polyvinyl acetate polymer 5 parts by weight, fly ash 4 parts by weight, silica fume 5 parts by weight, fiber reinforcement (mixture of PP fiber and nylon fiber) 5 parts by weight, average diameter is about 100㎛ and absolute dry specific gravity 35 parts by weight of a porous filler of 0.9, 1.2 parts by weight of neopentyl glycol anti-shrinkage agent, 0.3 parts by weight of antifoam, 8 parts by weight of an expanding agent in which calcium sulfoaluminate (CSA) and gypsum are mixed in a ratio of 6:4, n-jade A mixture was prepared by mixing 2.5 parts by weight of a tiltriethoxysilane powdered silicone waterproofing agent, 0.5 parts by weight of a soluble silicate (sodium silicate), 0.08 parts by weight of nitrite ions (mixture of lithium nitrite and sodium nitrite), and 0.3 parts by weight of ionized lithium (lithium hydroxide). Got it. A functional filler (100 parts by weight of an aqueous mixture solution of silica powder and expandable graphite powder) is added to 10 parts by weight of an organic silane, which is a mixture of silica powder (colloidal silica) and expandable graphite powder in a ratio of 100: 100 to dehydration and condensation reaction. The surface-treated powder) was added to about 5 parts by weight based on 100 parts by weight of the obtained crack repair agent composition, and a predetermined amount of water was mixed to prepare a crack repair agent composition.
(4) 제조예 4 - 마감재 제조(4) Manufacturing Example 4-Finishing material manufacturing
폴리비닐부티랄 수지 100 중량부에 실란 화합물 10~20 중량부, 붕산염 화합물 5~10 중량부, 폴리포스페이트 1~5 중량부, 인산 1~5 중량부 및 페놀수지 1~5 중량부를 혼합하여 마감재를 제조하였다.Finishing material by mixing 10 to 20 parts by weight of a silane compound, 5 to 10 parts by weight of a borate compound, 1 to 5 parts by weight of polyphosphate, 1 to 5 parts by weight of phosphoric acid, and 1 to 5 parts by weight of a phenol resin in 100 parts by weight of polyvinyl butyral resin Was prepared.
(5) 비교제조예 1 (5) Comparative Production Example 1
상기 제조예 1과 동일하게 실시하되 상기 섬유보강재를 사용하지 않고 균열 보수제 조성물을 제조한 것만 다르다. It was carried out in the same manner as in Preparation Example 1, except that the crack repair agent composition was prepared without using the fiber reinforcement.
(6) 비교제조예 2 (6) Comparative Production Example 2
상기 제조예 2와 동일하게 실시하되 상기 가용성규산염, 아질산 이온 및 이온화 리튬을 사용하지 않고 균열 보수제 조성물을 제조한 것만 다르다. It was carried out in the same manner as in Preparation Example 2, except that the crack repair agent composition was prepared without using the soluble silicate, nitrite ion, and ionized lithium.
(7) 비교제조예 3 (7) Comparative Production Example 3
상기 제조예 3과 동일하게 실시하되 상기 기능성 충전제를 사용하지 않고 균열 보수제 조성물을 제조한 것만 다르다. It was carried out in the same manner as in Preparation Example 3, except that the crack repair agent composition was prepared without using the functional filler.
2. 실시예 및 비교예2. Examples and Comparative Examples
(1) 실시예 1(1) Example 1
균열이 발생한 콘크리트 구조물의 표면 레이턴스 및 이물질을 제거하여 표면을 정리하였다. 상기 제조예 1에서 얻은 균열 보수재(균열 보수제 조성물)를 뿜칠 방법으로 미장 시공하였으며, 그 표면에 상기 제조예 4에서 얻은 마감재를 도포하여 코팅한 후 경화 및 건조하였다. 이후 직경 5cm의 코어를 채취하여 충전 정도 및 기계적 물성을 측정하여 그 결과를 표 1에 나타내었다. The surface was cleaned by removing the surface latencies and foreign substances of the cracked concrete structure. The crack repair material (crack repair agent composition) obtained in Preparation Example 1 was plastered by spraying, and the surface was coated with the finish material obtained in Preparation Example 4, followed by curing and drying. After that, a core having a diameter of 5 cm was collected and the degree of filling and mechanical properties were measured, and the results are shown in Table 1.
(2) 실시예 2(2) Example 2
균열이 발생한 콘크리트 구조물의 표면 레이턴스 및 이물질을 제거하여 표면을 정리하였다. 상기 제조예 2에서 얻은 균열 보수재(균열 보수제 조성물)를 뿜칠 방법으로 미장 시공하였으며, 그 표면에 상기 제조예 4에서 얻은 마감재를 도포하여 코팅한 후 경화 및 건조하였다. 이후 직경 5cm의 코어를 채취하여 충전 정도 및 기계적 물성을 측정하여 그 결과를 표 1에 나타내었다. The surface was cleaned by removing the surface latencies and foreign substances of the cracked concrete structure. The crack repair material (crack repair agent composition) obtained in Preparation Example 2 was plastered by spraying, and the surface was coated with the finish material obtained in Preparation Example 4, followed by curing and drying. After that, a core having a diameter of 5 cm was collected and the degree of filling and mechanical properties were measured, and the results are shown in Table 1.
(3) 실시예 3(3) Example 3
균열이 발생한 콘크리트 구조물의 표면 레이턴스 및 이물질을 제거하여 표면을 정리하였다. 상기 제조예 3에서 얻은 균열 보수재(균열 보수제 조성물)를 뿜칠 방법으로 미장 시공하였으며, 그 표면에 상기 제조예 4에서 얻은 마감재를 도포하여 코팅한 후 경화 및 건조하였다. 이후 직경 5cm의 코어를 채취하여 충전 정도 및 기계적 물성을 측정하여 그 결과를 표 1에 나타내었다. The surface was cleaned by removing the surface latencies and foreign substances of the cracked concrete structure. The crack repair material (crack repair agent composition) obtained in Preparation Example 3 was plastered by spraying, and the surface was coated with the finish material obtained in Preparation Example 4, followed by curing and drying. After that, a core having a diameter of 5 cm was collected and the degree of filling and mechanical properties were measured, and the results are shown in Table 1.
(4) 비교예 1(4) Comparative Example 1
실시예 1 및 2와 동일하게 실시하되, 시중에서 구입 가능한 일반 에폭시계 2액형 균열 보수재를 이용하여 균열 부위에 시공한 것만 다르게 하여 실시하였다. It was carried out in the same manner as in Examples 1 and 2, but was carried out using a commercially available general epoxy-based two-component crack repairing material different from only the ones installed on the cracks.
(5) 비교예 2(5) Comparative Example 2
실시예 1과 동일하게 실시하되, 균열 보수재로서 상기 비교제조예 1에서 얻은 균열 보수제 조성물을 사용한 것만 다르게 하여 실시하였다. It was carried out in the same manner as in Example 1, except that the crack repair agent composition obtained in Comparative Preparation Example 1 was used as a crack repair material.
(6) 비교예 3(6) Comparative Example 3
실시예 2와 동일하게 실시하되, 균열 보수재로서 상기 비교제조예 2에서 얻은 균열 보수제 조성물을 사용한 것만 다르게 하여 실시하였다. It was carried out in the same manner as in Example 2, except that the crack repair agent composition obtained in Comparative Preparation Example 2 was used as a crack repair material.
(7) 비교예 4(7) Comparative Example 4
실시예 1와 동일하게 실시하되, 균열 보수재로서 상기 비교제조예 3에서 얻은 균열 보수제 조성물을 사용한 것만 다르게 하여 실시하였다. It was carried out in the same manner as in Example 1, except that the crack repair agent composition obtained in Comparative Preparation Example 3 was used as a crack repair material.
이상의 실험 결과로부터 본 발명에 따른 균열 보수재(균열 보수제 조성물)를 이용하여 콘크리트 구조물의 균열을 보수할 경우 콘크리트와의 일체성이 뛰어나고, 내구성, 방수성 등의 물성도 우수하여 균열 보수 효과가 뛰어나다는 것을 확인할 수 있다.From the above experimental results, it was found that when the crack repair material (crack repair agent composition) according to the present invention is used to repair cracks in a concrete structure, the integrity with concrete is excellent, and the physical properties such as durability and water resistance are excellent, so that the crack repair effect is excellent. I can confirm.
Claims (10)
상기 균열 보수제 조성물은 실리카 분말과 팽창성 흑연의 혼합물로 이루어진 기능성 충전제를 추가로 포함하는 것을 특징으로 하고,
상기 기능성 충전제는 실리카 분말과 팽창성 흑연의 혼합비율이 100:50~200 중량비이고, 표면이 유기실란으로 코팅처리된 것을 특징으로 하되,
상기 실리카 분말 및 팽창성 흑연 분말의 혼합물 용액 100 중량부를 기준으로 유기 실란 0.1~50 중량부를 첨가하여 용액 내에서 분말 입자 표면에 유기기가 형성되고 탈수 및 축합반응을 통해 유기기로 표면 처리된 것을 특징으로 하며, 상기 용액은 실리카 분말 또는 팽창성 흑연 분말이 물 또는 알코올에 콜로이드 상태로 분산된 것을 사용하는 것을 특징으로 하고,
상기 유기 실란은 디메틸디메톡시실란, 메틸트리메톡시실란, 메틸트리에톡시실란, 테트라에톡시실란 중에서 선택된 것을 사용하는 것을 특징으로 하며,
상기 실리카 분말과 팽창성 흑연의 혼합물로 이루어진 기능성 충전제는 상기 균열 보수제 조성물 100 중량부를 기준으로 1~10 중량부의 범위로 포함되는 것을 특징으로 하는 콘크리트 구조물용 균열 보수제 조성물.
Based on 100 parts by weight of cement, 1 to 10 parts by weight of polymer, 0.1 to 7 parts by weight of fly ash, 0.1 to 8 parts by weight of silica fume, 1 to 10 parts by weight of fiber reinforcement, 30 to 50 parts by weight of aggregate, 0.5 to 2.0 parts by weight of anti-shrinkage , Containing 0.1 to 2.0 parts by weight of antifoam, 0.5 to 10 parts by weight of expanding agent, 1 to 10 parts by weight of powdered silicone water repellent, 0.01 to 1.0 parts by weight of soluble silicate, 0.01 to 0.12 parts by weight of nitrite ions and 0.01 to 0.5 parts by weight of ionized lithium As a crack repair agent composition for concrete structures,
The crack repair agent composition is characterized in that it further comprises a functional filler consisting of a mixture of silica powder and expandable graphite,
The functional filler is characterized in that the mixing ratio of silica powder and expandable graphite is 100:50 to 200 weight ratio, and the surface is coated with organosilane,
An organic group is formed on the surface of the powder particles in the solution by adding 0.1 to 50 parts by weight of an organic silane based on 100 parts by weight of the mixture solution of the silica powder and the expandable graphite powder, and surface-treated with the organic group through dehydration and condensation reaction , The solution is characterized in that using silica powder or expandable graphite powder dispersed in water or alcohol in a colloidal state,
The organic silane is characterized in that it is selected from dimethyldimethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, and tetraethoxysilane,
The functional filler made of a mixture of silica powder and expandable graphite is included in the range of 1 to 10 parts by weight based on 100 parts by weight of the crack repair agent composition.
The crack repair agent composition for concrete structures according to claim 1, wherein the cement is one or two or more mixed cements selected from portland cement, slag cement, alumina cement, and ultrafast cement.
The method according to claim 1, wherein the aggregate has an average diameter of 50 ~ 200㎛, the absolute dry specific gravity is 0.7 ~ 1.4, a crack repair agent composition for a concrete structure, characterized in that the porous lightweight aggregate.
The method according to claim 1, wherein the fiber reinforcement is one or a mixture of two or more selected from polypropylene fibers, polyvinyl alcohol fibers, nylon fibers, and polyester fibers, and has a length in the range of 0.1 to 5.0 mm. Crack repair agent composition.
The method according to claim 1, wherein the soluble silicate is one or a mixture of two or more selected from sodium silicate, potassium silicate, colloidal silica, soluble silica, modified silicate, silica sol, and water-soluble silicic acid of silica gel. Crack repair agent composition.
The crack repair agent composition for concrete structures according to claim 1, wherein the nitrite ion is one or a mixture of two or more selected from calcium nitrite, lithium nitrite, and sodium nitrite.
The method of claim 1, wherein the ionized lithium is one or two of lithium hydroxide, lithium oxide, lithium carbonate, lithium fluoride, lithium phosphate, lithium chloride, lithium nitrate, methyl lithium, ethyl lithium, alkyl lithium, ethyl lithium, and lithium silicate. A crack repair agent composition for concrete structures, characterized in that using one obtained by ionizing more than one species in a solvent.
(b) 상기 정리된 콘크리트 구조물의 표면에 균열 보수재로써 청구항 1에 따른 콘크리트 구조물용 균열 보수제 조성물을 뿜칠 미장하는 단계; 및
(c) 상기 뿜칠 미장된 표면에 마감재를 코팅하여 표면을 정리하는 단계;를 포함하는 것을 특징으로 하는 콘크리트 구조물의 균열 보수 공법.
(a) investigating the crack state of the concrete structure to remove foreign substances and clean the surface;
(b) plastering by spraying the crack repair agent composition for a concrete structure according to claim 1 as a crack repair material on the surface of the cleaned concrete structure; And
(c) cleaning the surface by coating a finishing material on the plastered surface to be sprayed; crack repair method of a concrete structure comprising a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200028536A KR102195453B1 (en) | 2020-03-06 | 2020-03-06 | Crack repairing material for concrete structure with improved water proof performance and durability and method of repairing concrete structure using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200028536A KR102195453B1 (en) | 2020-03-06 | 2020-03-06 | Crack repairing material for concrete structure with improved water proof performance and durability and method of repairing concrete structure using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR102195453B1 true KR102195453B1 (en) | 2020-12-29 |
Family
ID=74090356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020200028536A KR102195453B1 (en) | 2020-03-06 | 2020-03-06 | Crack repairing material for concrete structure with improved water proof performance and durability and method of repairing concrete structure using the same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR102195453B1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939522A (en) * | 2021-03-24 | 2021-06-11 | 通州建总集团有限公司 | Anti-cracking waterproof material for outer wall surface of building engineering and preparation method thereof |
| CN113912358A (en) * | 2021-11-29 | 2022-01-11 | 山东港基建设集团有限公司 | Ultra-high performance concrete for large-span beam construction and preparation method thereof |
| CN115925335A (en) * | 2022-11-21 | 2023-04-07 | 杭州瑞鼎建材有限公司 | Rust-proof steel fiber concrete and preparation method thereof |
| CN115974444A (en) * | 2022-12-26 | 2023-04-18 | 天津大学 | Cement crack activation crosslinking repair system and preparation method and application thereof |
| KR20230071845A (en) * | 2021-11-15 | 2023-05-24 | 주식회사 부국에스티 | Method of repairing and reinforcing damaged part of concrete structure using assemblable anchor and panel |
| CN116375443A (en) * | 2023-03-31 | 2023-07-04 | 江苏五茅建设集团有限公司 | Composite material for self-repairing bridge cracks and preparation method thereof |
| KR102603728B1 (en) * | 2023-07-11 | 2023-11-21 | (주)알에스건재 | Powdery elastic coated waterproofing composition containing regenerated fibers |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101921900B1 (en) * | 2018-05-04 | 2018-11-26 | (주)세명티엠아이 | Preparation method of eco-friendly polymer mortar comprising high performance and hydrophilic PVA fiber and natural sisal fiber, and method of crack control and repairing using the same |
| KR101995844B1 (en) * | 2018-12-14 | 2019-07-04 | 이동우 | Mortar composition for repairing and reinforcing underwater concrete structures, and method of repairing and reinforcing underwater concrete structures using the same |
| KR102018856B1 (en) * | 2019-01-14 | 2019-09-06 | 주식회사 유니텍 | Protecting method of cross-section of concrete structure using eco-friendly cross-section repairing natural fiber and polymer mortar and surface coating material with function of self-protection |
| 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 |
-
2020
- 2020-03-06 KR KR1020200028536A patent/KR102195453B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101921900B1 (en) * | 2018-05-04 | 2018-11-26 | (주)세명티엠아이 | Preparation method of eco-friendly polymer mortar comprising high performance and hydrophilic PVA fiber and natural sisal fiber, and method of crack control and repairing using the same |
| 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 |
| KR101995844B1 (en) * | 2018-12-14 | 2019-07-04 | 이동우 | Mortar composition for repairing and reinforcing underwater concrete structures, and method of repairing and reinforcing underwater concrete structures using the same |
| KR102018856B1 (en) * | 2019-01-14 | 2019-09-06 | 주식회사 유니텍 | Protecting method of cross-section of concrete structure using eco-friendly cross-section repairing natural fiber and polymer mortar and surface coating material with function of self-protection |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939522A (en) * | 2021-03-24 | 2021-06-11 | 通州建总集团有限公司 | Anti-cracking waterproof material for outer wall surface of building engineering and preparation method thereof |
| KR20230071845A (en) * | 2021-11-15 | 2023-05-24 | 주식회사 부국에스티 | Method of repairing and reinforcing damaged part of concrete structure using assemblable anchor and panel |
| KR102582810B1 (en) * | 2021-11-15 | 2023-09-27 | 주식회사 부국에스티 | Method of repairing and reinforcing damaged part of concrete structure using assemblable anchor and panel |
| CN113912358A (en) * | 2021-11-29 | 2022-01-11 | 山东港基建设集团有限公司 | Ultra-high performance concrete for large-span beam construction and preparation method thereof |
| CN115925335A (en) * | 2022-11-21 | 2023-04-07 | 杭州瑞鼎建材有限公司 | Rust-proof steel fiber concrete and preparation method thereof |
| CN115925335B (en) * | 2022-11-21 | 2024-04-16 | 杭州瑞鼎建材有限公司 | Rust-proof steel fiber concrete and preparation method thereof |
| CN115974444A (en) * | 2022-12-26 | 2023-04-18 | 天津大学 | Cement crack activation crosslinking repair system and preparation method and application thereof |
| CN115974444B (en) * | 2022-12-26 | 2024-04-05 | 天津大学 | Cement crack activation crosslinking repair system and preparation method and application thereof |
| CN116375443A (en) * | 2023-03-31 | 2023-07-04 | 江苏五茅建设集团有限公司 | Composite material for self-repairing bridge cracks and preparation method thereof |
| CN116375443B (en) * | 2023-03-31 | 2023-10-24 | 江苏五茅建设集团有限公司 | Composite material for self-repairing bridge cracks and preparation method thereof |
| KR102603728B1 (en) * | 2023-07-11 | 2023-11-21 | (주)알에스건재 | Powdery elastic coated waterproofing composition containing regenerated fibers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102195453B1 (en) | Crack repairing material for concrete structure with improved water proof performance and durability and method of repairing concrete structure using the same | |
| KR101921900B1 (en) | Preparation method of eco-friendly polymer mortar comprising high performance and hydrophilic PVA fiber and natural sisal fiber, and method of crack control and repairing using the same | |
| KR102023414B1 (en) | Mortar composition for repairing, reinforcing and enhancing earthquake-proof property of concrete structure, and construction method of repair and reinforcement of concrete using the same | |
| KR101832132B1 (en) | Polymer mortar composition for earthquake-proof and reinforcement of concrete structure, and construction method of earthquake-proof and reinforement of concrete using the same | |
| KR101972265B1 (en) | Method of repairing and reinforcing concrete structure using high strength mortar composition and stiffner | |
| KR101893060B1 (en) | Mortar composition for repairing and reinforcing concrete structure, and method of repairing and reinforcing concrete structure using the same | |
| KR101724062B1 (en) | Mortar composition for inhibiting in-depth fine crack of damaged concrete structure and for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same | |
| KR101941179B1 (en) | Composition for repairing and reinforcing concrete structure comprising high strength mortar, and method of repairing and reinforcing concrete structures using the same | |
| KR101681596B1 (en) | 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 | |
| KR101498196B1 (en) | Lightweight hybrid water-repellent polymer mortar composition for repairing and protecting concrete structure, and construction method using the same | |
| KR101340856B1 (en) | Cement mortar composite having improved durability and watertightness and repairing method of conctrete structure using the composite | |
| KR101460498B1 (en) | Compositions of self water absorbing type retentive and repair method for concrete structures using the same | |
| KR101355392B1 (en) | Cement composite with improved acid proof and salt-resistance, mortar cement composite for repairing the concrete structure and repairing method of concrete structure using the mortar cement composite | |
| KR101528120B1 (en) | Repairing and reinforcing material for concrete structure and method of repairing and reinforcing concrete structure using the same | |
| KR101891565B1 (en) | Wet-curing cement mortar composition and method for protecting surface of concrete structure therewith | |
| KR101311699B1 (en) | Composite for repairing concrete structure and repairing method of concrete structure using the composite | |
| KR101764895B1 (en) | Excellent salt stress and frost stress and chemically resistant concrete repair materials, and method for repairing concrete structure using this same | |
| KR102196634B1 (en) | Mortar composition for repairing concrete structures with excellent chemical resistance and durability and seismic performance, and the method for repairing and reinforcing concrete structures using the same | |
| KR101600776B1 (en) | Cement concrete compositions and pavement construction method therewith | |
| KR102272220B1 (en) | Method of reinforcement of cross section of structure using polymer mortar with high heat and fast rigidity containing calcium sulfonate, calcium pomate and PBO fiber, and method seismic refractory reinforcement of structure using high-strength composite sheet made of glass fiber and aramid fiber | |
| KR102347276B1 (en) | Light-weight mortar composition for repairing with improved fire proof, durability and workability and construction method of repairing concrete structure using the same | |
| KR101860125B1 (en) | Mortar composition for repairing, reinforcing and enhancing earthquake-proof property of concrete structure, and construction method of repair and reinforcement of concrete using the same | |
| KR101441949B1 (en) | Method of repairing and protecting concrete structure using eco-friendly lightweight hybrid water-repellent polymer mortar composition and surface protecting material | |
| KR101954575B1 (en) | Construction method of earthquake-proof and reinforcement of concrete structure using polymer mortar with high strength and durability and elastic stiffner | |
| KR20110035684A (en) | Composition of polymer mortar for spray apparatus and repair method of concrete structures using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |