KR100757032B1 - Method for restoring the original form of the trace repairng the crack of concrete structure - Google Patents
Method for restoring the original form of the trace repairng the crack of concrete structure Download PDFInfo
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- KR100757032B1 KR100757032B1 KR1020040088105A KR20040088105A KR100757032B1 KR 100757032 B1 KR100757032 B1 KR 100757032B1 KR 1020040088105 A KR1020040088105 A KR 1020040088105A KR 20040088105 A KR20040088105 A KR 20040088105A KR 100757032 B1 KR100757032 B1 KR 100757032B1
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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
- E04G23/0296—Repairing or restoring facades
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
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- 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
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
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Abstract
본 발명은 콘크리트 타설시 양생 과정에서 생기는 구조적 균열과 타설 후 환경적 영향 등에 따라 균열이 발생할 수 있는데, 이러한 균열의 보수과정에서 생겨나는 삽입물의 잔흔 및 면손상과 보수 완료 후 발생되는 면의 이색·이질 현상에 대하여 원면과 균열 보수면의 색조 및 질감을 동일하게 처리하기 위한 콘크리트 구조물 균열보수 흔적의 원형복원방법을 제공하는데 그 목적이 있다.According to the present invention, cracks may occur due to structural cracking during curing and environmental effects after casting. The purpose of the present invention is to provide a circular restoration method of crack repair traces of concrete structures to treat the same color tone and texture of the original and crack repair surfaces.
이를 위해 본 발명에 따른 콘크리트 구조물 균열보수 흔적의 원형복원방법은, 균열 보수재의 돌출부분을 그라인딩하는 그라인딩단계(S1)와, 그라인딩된 부분을 1차 특수시멘트몰탈로 충진·미장하는 미장단계(S2)와, 미장된 1차 특수시멘트몰탈의 양생후 면을 고르는 면고르기단계(S3)와, 고른 면에 원면과 색상 및 질감 일체화를 위해 액상으로 된 2차 특수시멘트몰탈을 분사하여 접착시키는 뿜칠단계(S4), 및 뿜칠된 2차 특수시멘트몰탈의 양생후 콘크리트 고유의 문양을 착색하는 문양 착색단계(S5)를 포함하여 이루어진 것을 기술적 특징으로 한다.For this purpose, the circular restoration method of the crack repair traces of the concrete structure according to the present invention includes a grinding step (S1) for grinding the protrusion of the crack repair material, and a plastering step for filling and plastering the ground part with the primary special cement mortar (S2). ), And the step of selecting a surface after curing the first special cement mortar (S3), and the spraying step of spraying the second special cement mortar in the liquid phase to bond the surface and color and texture on the even surface (S4), and after the curing of the sprayed secondary special cement mortar is characterized by comprising a pattern coloring step (S5) for coloring the unique pattern of the concrete.
그라인딩 단계, 1차 특수시멘트몰탈, 미장단계, 면고리기단계, 2차 특수시멘트몰탈, 뿜칠단계, 착색단계Grinding stage, 1st special cement mortar, Plastering stage, Cotton looping stage, 2nd special cement mortar, Spraying stage, Coloring stage
Description
도 1은 본 발명의 일 실시예에 따른 콘크리트 구조물 균열보수 흔적의 원형 복원과정을 개략적으로 나타낸 공정도.1 is a process diagram schematically showing a circular restoration process of the concrete structure crack repair traces according to an embodiment of the present invention.
<도면의 주요부호에 대한 설명><Description of Major Symbols in Drawing>
S1 : 그라인딩단계 S2 : 미장단계S1: grinding step S2: plastering step
S3 : 면고르기단계 S4 : 뿜칠단계S3: Select cotton step S4: Spray step
S5 : 문양 착색단계S5: Glyph Coloring Step
본 발명은 콘크리트 구조물 균열보수 흔적의 원형복원방법에 관한 것으로, 더욱 상세하게는 보수면에 콘크리트를 타설하고 양생하는 과정에서 발생되는 구조적 균열과 양생후 환경적 영향등에 따라 발생되는 균열부분 등을 보수하는 과정에서 생겨나는 균열 보수재의 잔흔 및 면손상, 그리고 보수완료후 발생되는 면의 이색·이질현상에 대하여 원면과 균열보수면의 색조 및 질감을 동일하게 처리하도록 한 콘크리트 구조물 균열보수 흔적의 원형복원방법에 관한 것이다.The present invention relates to a method for circular restoration of crack repair traces of concrete structures, and more specifically, to repair the cracks generated due to structural cracks and environmental effects after curing, in the process of placing and curing concrete on the repair surface. Circular restoration of crack repair traces of concrete structures to treat the same color and texture of the surface and crack repair surface for the marks and surface damage of crack repair material and the discoloration and heterogeneity of the surface after repair. It is about a method.
일반적으로, 노출콘크리트 공법은 콘크리트 구조물의 표면이 직접 외부에 노출되도록 마감함으로써 콘크리트 자체의 질감을 미학적으로 표현함과 동시에, 별도의 대리석 판넬 등과 같은 외장재를 사용하지 않음으로써 유지·보수 비용을 절감할 수 있는 콘크리트의 마감방법중 하나이다.In general, the exposed concrete method finishes the surface of the concrete structure directly exposed to the outside, thereby aesthetically expressing the texture of the concrete itself and reducing maintenance cost by not using a separate marble panel or the like. It is one of the finishing methods of concrete.
종래에 시행되었던 균열 보수후 보수면의 바탕처리 방법을 살펴보면, 균열부분에 충진용 에폭시를 주사하고 경화한 후 그라인딩하여 표면처리하고 그라인딩된 면에 시멘트 또는 표면처리 퍼티 등으로 단순 치장하여 면처리하는 방법을 채용하고 있다.Looking at the background treatment method of the repair surface after the crack repair, which was performed in the past, the surface is treated by injecting a curing epoxy into the crack, curing and grinding and grinding the surface, and simply surface-treated by simply dressing the cement with a cement or surface treatment putty. We adopt method.
그러나, 전술한 바와 같은 종래의 바탕처리 방법은 콘크리트 고유의 피복을 손상시킬 뿐만 아니라 면처리후 원래의 면과 모양과 이색짐이 발생하여 콘크리트면의 미적 아름다움이 손상되고 장시간 경과 후 변색, 박리 및 박락되는 기술적 한계를 가지고 있었다.However, the conventional ground treatment method as described above not only damages the inherent coating of the concrete, but also causes the original face, shape, and discoloration after the surface treatment damages the aesthetic beauty of the concrete surface, and causes discoloration, peeling, and It had technical limitations that fell.
이에 본 발명은 전술한 바와 같은 종래의 제반 문제점을 해소하기 위하여 안출된 것으로, 콘크리트 구조물의 표면에 발생되는 균열부분을 보수한 후 보수한 부분에 원면과 동일한 색상 및 질감을 갖는 특수시멘트몰탈을 사용하여 충진 또는 뿜칠하여 면을 복원함으로써 콘크리트 고유의 미적 아름다움과 표면질감을 살리는 콘크리트 구조물 균열보수 흔적의 원형복원방법을 제공하는데 그 목적이 있다.Therefore, the present invention has been devised to solve the conventional problems as described above, using a special cement mortar having the same color and texture as the original surface after repairing the cracks generated on the surface of the concrete structure The purpose of the present invention is to provide a circular restoration method of crack repair and repair of concrete structures utilizing the unique beauty and surface texture of concrete by restoring the surface by filling or spraying.
전술한 바와 같은 목적을 달성하기 위해 본 발명에 따른 콘크리트 구조물 균 열보수 흔적의 원형복원방법은, 균열 보수재의 돌출부분을 그라인딩하는 그라인딩단계와, 그라인딩된 부분을 1차 특수시멘트몰탈로 충진·미장하는 미장단계와, 미장된 1차 특수시멘트몰탈의 양생후 면을 고르는 면고르기단계와, 고른 면에 원면과 색상 및 질감 일체화를 위해 액상으로 된 2차 특수시멘트몰탈을 분사하여 접착시키는 뿜칠단계, 및 뿜칠된 2차 특수시멘트몰탈의 양생후 콘크리트 고유의 문양을 착색하는 문양 착색단계를 포함하여 이루어진 것을 기술적 특징으로 한다.In order to achieve the object as described above, the circular restoration method of the cracks of the concrete structure crack repair according to the present invention, the grinding step of grinding the protrusion of the crack repair material, and filling and plastering the ground with the primary special cement mortar Plastering step to select, and then the cotton picking step to select the surface after curing the first special cement mortar, and the spraying step to spray by spraying the second special cement mortar in the liquid to integrate the surface and color and texture on the selected surface, And a pattern coloring step of coloring a pattern unique to concrete after curing of the second special cement mortar sprayed.
이하, 본 발명에 따른 콘크리트 구조물 균열보수 흔적의 원형복원방법의 바람직한 실시예를 통하여 전술한 바와 같은 구성의 특징과 그 작용을 보다 상세히 설명하기로 한다.Hereinafter, the characteristics of the configuration as described above and its operation will be described in more detail with reference to a preferred embodiment of the circular restoration method of the concrete structure crack repair traces according to the present invention.
도 1에 도시된 바와 같이 본 발명에 따른 콘크리트 구조물 균열보수 흔적의 원형복원방법은, 균열 보수재의 돌출부분을 그라인딩하는 그라인딩단계(S1)와, 그라인딩된 부분을 1차 특수시멘트몰탈로 충진·미장하는 미장단계(S2)와, 미장된 1차 특수시멘트몰탈의 양생후 면을 고르는 면고르기단계(S3)와, 고른 면에 원면과 색상 및 질감 일체화를 위해 액상으로 된 2차 특수시멘트몰탈을 분사하여 접착시키는 뿜칠단계(S4), 및 뿜칠된 2차 특수시멘트몰탈의 양생후 콘크리트 고유의 문양을 착색하는 문양 착색단계(S5)를 포함하여 이루어진다.As shown in FIG. 1, the circular restoration method of the crack repair trace of the concrete structure according to the present invention includes a grinding step (S1) for grinding the protruding portion of the crack repair material, and filling and plastering the ground portion with the primary special cement mortar. Plastering stage (S2), the surface selection stage (S3) to select the surface after curing the first special cement mortar, and spraying the second special cement mortar in liquid phase to integrate the surface, color and texture on the even surface It comprises a spraying step (S4) to bond, and a pattern coloring step (S5) for coloring the unique pattern of the concrete after curing of the sprayed secondary special cement mortar.
전술한 그라인딩단계(S1)는 균열된 부분에 에폭시 등과 같은 균열 보수재를 주입하여 보수한 후 돌출된 균열 보수재를 그라인딩하여 평활화하는 과정이다.The above grinding step (S1) is a process of grinding and smoothing the protruding crack repair material after injecting and repairing a crack repair material such as epoxy in the cracked portion.
전술한 미장단계(S2)는 그라인딩 과정에서 발생되는 면의 요철 및 면손상 부위를 1차 특수시멘트몰탈로 충진한 후 미장하는 과정으로서, 이 과정에서 사용되는 1차 특수시멘트몰탈은 마이크로시멘트 40~55중량%, 활석분말 20~30중량%, 석분 20~30중량%, 증점제 0.3~0.7중량%, 소포제 0.1~1중량%, 천연섬유 0.1~0.2중량%, 유동화제 0.3~1중량%, 및 무기질안료 0.3~3.5중량%를 포함하여 이루어진다.The above-mentioned plastering step (S2) is a process of filling the surface of the unevenness and surface damage generated in the grinding process with the primary special cement mortar after plastering, the first special cement mortar used in this process is microcement 40 ~ 55 wt%, talc powder 20-30 wt%, stone powder 20-30 wt%, thickener 0.3-0.7 wt%, defoamer 0.1-1 wt%, natural fiber 0.1-0.2 wt%, fluidizing agent 0.3-1 wt%, and It comprises 0.3 to 3.5% by weight of inorganic pigments.
1차 특수시멘트몰탈을 구성하는 주재료인 마이크로시멘트는 콘크리트 제조시 골재와 함께 섞여 타설후 골재를 굳히는 것으로, 구조물의 강도를 결정하는 중요 요소가 되며, 분말도가 5,000~8,000㎠/g인 것을 사용한다. 이 때, 마이크로시멘트의 분말도가 5,000㎠/g 미만인 경우에는 분말의 크기가 너무 커서 몰탈의 입자가 너무 거칠어지고 분말도가 8,000㎠/g를 초과하는 경우에는 분말의 크기가 너무 작아 몰탈의 입자가 너무 미세해지기 때문에 적정 강도를 얻지 못하는 단점이 있다. 또한, 성분비가 55중량%를 초과할 경우 강도는 증가하나 인성이 저하되어 균열이 발생하며, 40중량% 미만일 경우 콘크리트 고유강도가 저하된다.
활석분말은 열충격에 대한 저항성과 내열성을 증가시키고 콘크리트 표면에 광택의 조절과 필름(Film)강화 및 오염방지에 도움이 된다. 성분비가 30중량%를 초과할 경우 표면광택은 좋아지나 강도를 저화시키며, 20중량% 미만일 경우 강도는 좋아지나 광택효과가 저하된다.
석분은 몰탈 혼합시 모래 대용으로 사용하는 것으로 보수부분의 충진에 용이하며 마이크로시멘트와 활석과의 혼합시 강도를 증진시킨다. 성분비가 30중량%를 초과할 경우 강도는 강해지나 보수 및 가공능률이 저하되며, 성분비가 20중량% 미만일 경우 작업은 용이하나 콘크리트 고유강도가 저하된다.
증점제는 물에 용해될 때 소정의 점도를 증대시키기 위한 것으로, 재료의 분리를 방지하고 응집성과 윤활성을 증대시키는 효과를 얻을 수 있다. 성분비가 0.7중량%를 초과할 경우 점도와 윤활성은 증대되나 경화시간을 지연시키고 강도의 저하를 가져오며, 0.3중량% 미만일 경우 경화시간이 빨라지고 강도가 강해지나 점도와 윤활성이 감소된다.
소포제는 시멘트몰탈과 혼합하여 반죽할 때 발생하는 거품을 방지하고 과도한 공기투입량을 감소시키며 몰탈의 밀도를 치밀하게 하여 기포형성을 방지하고 작업의 유연성을 향상시킨다. 성분비가 1중량%를 초과할 경우 수밀도는 증가되나 인성 및 탄성을 저하시키며, 0.1중량% 미만일 경우 혼합시 발생되는 기포를 방지하지 못하며 내구성을 저하시킨다.
천연섬유는 몰탈이나 시멘트 복합체의 소성수축균형을 억제하고 안정화하여, 인성, 내충격성 및 인장강도 등을 증진시킴으로써 역학적 성질을 개선하여 피로거동에 대하여 저항할 수 있는 힘을 높여 내구성을 증대시킨다. 성분비가 0.2중량%를 초과할 경우 인성 및 균열현상은 방지되나 강도 및 내구성이 떨어지며, 0.1중량% 미만일 경우 양생후 균열이 발생하기 쉽다.
유동화제는 혼합물간에 강력한 분산효과를 나타내어 강도의 저하없이 작업성을 증가시키며, 유동화제의 고감수 효과는 초기 및 종결강도를 현저히 증가시키고 시멘트 사용량을 감소시키는 역할을 한다. 성분비가 1중량%를 초과할 경우 수밀도는 증가하나 수축이완작용을 저하시켜 균열을 발생시키며, 0.3중량% 미만일 경우 밀도를 저하시켜 콘크리트 고유 강도를 발현시키지 못한다.
무기질 안료는 혼합물에 색상을 부여하는 것으로, 성분비가 3.5중량%를 초과하거나 0.3중량% 미만일 경우에는 콘크리트의 고유색상이 발현되지 못한다.
전술한 면고르기단계(S3)는 미장된 1차 특수시멘트몰탈의 양생후 면을 센더나 사포등으로 평활하게 고르는 과정이다.The microcement, the main material that constitutes the primary special cement mortar, is mixed with aggregate in the manufacture of concrete to harden the aggregate after pouring. It is an important factor to determine the strength of the structure, and it has a powder of 5,000 ~ 8,000㎠ / g. do. At this time, when the microcement powder is less than 5,000 cm 2 / g, the size of the powder is so large that the particles of mortar become too coarse, and when the powder degree exceeds 8,000 cm 2 / g, the powder is too small and the size of the mortar particles Since it becomes too fine, there is a disadvantage that can not obtain the appropriate strength. In addition, when the component ratio exceeds 55% by weight, the strength is increased, but the toughness is lowered, and cracking occurs, and when it is less than 40% by weight, the intrinsic strength of the concrete is lowered.
Talc powder increases resistance to thermal shock and heat, and helps to control gloss on concrete surfaces, strengthen film and prevent contamination. If the component ratio exceeds 30% by weight, the surface gloss is improved but the strength is lowered. If the content ratio is less than 20% by weight, the strength is improved but the gloss effect is lowered.
Stone powder is used as a substitute for sand when mixing mortar, and it is easy to fill the repair part and enhances the strength when mixing microcement with talc. If the component ratio exceeds 30% by weight, the strength is strong, but the maintenance and processing efficiency is lowered. If the component ratio is less than 20% by weight, the work is easy, but the intrinsic strength of the concrete is lowered.
The thickener is for increasing the predetermined viscosity when dissolved in water, and can prevent the separation of materials and increase the cohesiveness and lubricity. If the content ratio exceeds 0.7% by weight, the viscosity and lubricity increase but delays the curing time and decreases the strength. When the content ratio is less than 0.3% by weight, the curing time is increased and the strength is increased, but the viscosity and lubricity decrease.
Antifoaming agent prevents foaming when mixing with cement mortar, reduces excessive air input, densifies mortar density, prevents bubble formation and improves work flexibility. If the component ratio exceeds 1% by weight, the water density is increased, but the toughness and elasticity are lowered. If the content ratio is less than 0.1% by weight, it does not prevent bubbles generated during mixing and the durability is lowered.
Natural fiber suppresses and stabilizes plastic shrinkage balance of mortar or cement composite, improves mechanical properties by improving toughness, impact resistance and tensile strength, thereby increasing durability to resist fatigue behavior, thereby increasing durability. If the component ratio is more than 0.2% by weight, toughness and cracking are prevented, but strength and durability are inferior. If the content ratio is less than 0.1% by weight, cracking tends to occur after curing.
The fluidizing agent exhibits a strong dispersing effect between the mixtures to increase workability without degrading strength, and the high susceptibility effect of the fluidizing agent significantly increases the initial and termination strengths and serves to reduce the amount of cement used. If the component ratio exceeds 1% by weight, the water density increases, but the shrinkage relaxation action is lowered, and cracking occurs. If the content ratio is less than 0.3% by weight, the density is lowered so that the concrete inherent strength cannot be expressed.
Inorganic pigments impart color to the mixture, and when the component ratio is more than 3.5% by weight or less than 0.3% by weight, the intrinsic color of the concrete is not expressed.
The above-described surface selection step (S3) is a process of smoothly selecting the surface after curing of the first special cement mortar with sander or sandpaper.
삭제delete
전술한 뿜칠단계(S4)는 면고르기 단계(S3)를 통해 표면이 매끄럽게 골라진 면에 원면과 색상 및 질감 일체화를 위한 액상형 2차 특수시멘트몰탈을 분사하여 접착시키는 과정으로서, 이 과정에서 사용되는 액상형 2차 특수시멘트몰탈은 마이크로시멘트 40~50중량%, 활석분말 40~50중량%, 분말수지 5~10중량%, 증점제 0.3~0.7중량%, 소포제 0.1~1중량%, 천연섬유 0.1~0.2중량%, 유동화제 0.3~1중량%, 및 무기질안료 0.3~3.5중량%를 포함하여 이루어진다.The above-described spraying step (S4) is a process of spraying and adhering a liquid secondary special cement mortar for unifying the surface and color and texture to the smoothly selected surface through the step of selecting the surface (S3), which is used in this process Liquid secondary cement special mortar is 40 ~ 50% by weight of micro cement, 40 ~ 50% by weight of talc powder, 5 ~ 10% by weight of powder resin, 0.3 ~ 0.7% by weight of thickener, 0.1 ~ 1% by weight of antifoam, 0.1 ~ 0.2 of natural fiber It comprises a weight%, 0.3 to 1% by weight of the fluidizing agent, and 0.3 to 3.5% by weight of inorganic pigments.
2차 특수시멘트몰탈을 구성하는 마이크로시멘트는 모르타르나 콘크리트 제조 시 골재와 함께 섞여 타설후 골재를 굳히는 것으로, 구조물의 강도를 결정하는 중요 요소가 되며, 분말도가 6,000~8,000㎠/g인 것을 사용한다. 그리고, 활석분말은 분말의 크기가 325메쉬(mesh)이상인 것을 사용한다.The microcement constituting the secondary special cement mortar is mixed with aggregate in the manufacture of mortar or concrete to harden the aggregate after pouring, and it is an important factor to determine the strength of the structure, and it has a powder of 6,000 ~ 8,000㎠ / g. do. In addition, the talc powder uses a powder having a size of 325 mesh or more.
이 때, 마이크로시멘트의 분말도가 6,000㎠/g 미만인 경우에는 분말의 크기가 너무 커서 몰탈의 입자가 너무 거칠어지고 분말도가 8,000㎠/g를 초과하는 경우에는 분말의 크기가 너무 작아 몰탈의 입자가 너무 미세해지기 때문에 적정 강도를 얻지 못하는 단점이 있다. 그리고, 활석분말의 크기기 325mesh 미만일 경우에도 몰탈의 입자가 너무 거칠어지는 단점이 있다.
한편, 2차 특수시멘트몰탈을 구성하는 성분중 마이크로시멘트, 활석분말, 증점제, 소포제, 천연섬유, 유동화제 및 무기질 안료의 특성은 1차 특수시멘트몰탈을 구성하는 구성성분의 설명과 동일하므로 그에 대한 설명을 생략하기로 한다. 또한, 이들 성분들이 2차 특수시멘트몰탈을 구성할 때 수치한정범위만 다를 뿐 수치한정이유는 동일하다.
그리고, 2차 특수시멘트몰탈을 구성하는 분말수지는 몰탈간 필름형성을 통하여 방수성능을 향상시키고 수지가 가지고 있는 수용성 보호 콜로이드로 인하여 몰탈이 물을 보유할 수 있는 능력이 증가되어 필름을 형성함으로써 부재의 휨강도를 증가시키며, 양생과정에서 발생하는 균열을 방지하고 건조 또는 경화 과정에서 바인더로 작용함으로써 유기 및 무기 바탕면과의 접착력, 몰탈의 내마모성 및 유연성을 증대시킨다. 성분비가 10중량%를 초과할 경우 강도와 접착력은 강해지나 경화시간을 지연시키며 보수 및 가공능률이 저하되며, 성분비가 5중량% 미만일 경우 강도 및 접착력을 저하시킨다.At this time, when the microcement powder is less than 6,000 cm 2 / g, the size of the powder is so large that the particles of mortar become too coarse, and when the powder degree exceeds 8,000 cm 2 / g, the powder is too small and the size of the mortar particles Since it becomes too fine, there is a disadvantage that can not obtain the appropriate strength. In addition, even when the size of the talc powder is less than 325mesh has a disadvantage that the particles of the mortar is too rough.
Meanwhile, among the components constituting the secondary special cement mortar, the characteristics of microcement, talc powder, thickener, antifoaming agent, natural fiber, fluidizing agent, and inorganic pigment are the same as the description of the components constituting the primary special cement mortar. The description will be omitted. In addition, when these components constitute the secondary special cement mortar, only the numerical limitation range is different, and the numerical limitation is the same.
In addition, the powder resin constituting the secondary special cement mortar improves the waterproof performance through the film formation between mortars, and the ability of the mortar to retain water is increased due to the water-soluble protective colloid of the resin, thereby forming a film. It increases the flexural strength of the metal, prevents cracking during curing, and acts as a binder during drying or curing to increase adhesion to organic and inorganic substrates, wear resistance and flexibility of mortar. If the component ratio exceeds 10% by weight, the strength and adhesion will be strong, but the curing time will be delayed, and the repair and processing efficiency will be reduced.
전술한 문양 착색단계(S5)는 뿜칠된 2차 특수시멘트몰탈의 양생후 별도의 착색도구(예컨대, 부직포)에 콘크리트색을 갖는 도료를 묻혀 콘크리트의 고유문양(콘크리트 타설후 양생과정에서 콘크리트 면에 발생하는 얼룩문양)을 착색하는 과정이다.In the above-described pattern coloring step (S5), after curing of the second special cement mortar sprayed, a special coloring tool (for example, a nonwoven fabric) is coated with a paint having a concrete color, and then a unique pattern of concrete (concrete after curing Smears that occur)
이상과 같이 본 발명의 바람직한 실시예에 따른 콘크리트 구조물 균열보수 흔적의 원형복원방법을 첨부된 도면을 참조로 설명하였으나, 본 발명은 본 명세서에 상세히 설명된 실시예와 도면에 한정되지 아니하며, 발명의 기술사상 범위 내에서 다양한 변형이 이루어질 수 있다.As described above with reference to the accompanying drawings, the circular restoration method of the concrete structure crack repair trace according to a preferred embodiment of the present invention, the present invention is not limited to the embodiments and drawings described in detail herein, the invention Various modifications may be made within the scope of the technical idea.
전술한 바와 같이 구성된 본 발명 콘크리트 구조물 균열보수 흔적의 원형복원방법에 따르면, 콘크리트 구조물의 표면에 발생되는 균열부분을 보수한 후 보수한 부분에 원면과 동일한 색상 및 질감을 갖는 특수시멘트몰탈을 사용하여 충진 또 는 뿜칠하여 면을 복원함으로써 콘크리트 고유의 미적 아름다움과 표면질감을 살릴 수 있다.According to the circular restoration method of the crack repair traces of the concrete structure configured as described above, after repairing the cracks generated on the surface of the concrete structure using a special cement mortar having the same color and texture as the original By restoring the surface by filling or spraying, the aesthetic beauty and surface texture of the concrete can be restored.
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