KR102338398B1 - Integrated repair method for crack repair or cross-section restoration of concrete structures - Google Patents
Integrated repair method for crack repair or cross-section restoration of concrete structures Download PDFInfo
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Images
Classifications
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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
-
- 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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
Abstract
Description
본 발명은 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법에 관한 것으로, 보다 상세하게는 균열보수 또는 단면복구 효과를 높이되, 인장강도와 신장율이 우수하여 내수성, 부착성, 균열저항성이 뛰어나 특히, PC판, 각종 보드류 이음부분의 코킹용, 시멘트몰탈, 콘크리트 건축물의 내,외벽에 대한 균열 보수 시공에 적합하도록 개선된 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법에 관한 것이다.The present invention relates to an integrated repair method for crack repair or cross-section restoration of a concrete structure, and more particularly, to increase the crack repair or cross-section restoration effect, but to have excellent tensile strength and elongation, and excellent water resistance, adhesion, and crack resistance In particular, it relates to an integrated repair method for crack repair or cross-section restoration of a concrete structure improved to be suitable for crack repair construction on the inner and outer walls of PC boards, various boards, cement mortar, and concrete structures.
빌딩 및 아파트와 같은 건축물은 대부분 콘크리트 구조물에 해당하며, 여기서 콘크리트는 물, 시멘트, 모래, 자갈 등의 골재를 구성성분으로 하며, 시멘트와 물이 반응하여 굳어지는 수화 반응을 이용하여 건물, 교량, 터널 등의 건축 구조물을 형성하는데 이용된다.Buildings and apartments are mostly concrete structures, where concrete is composed of aggregates such as water, cement, sand, and gravel. It is used to form building structures such as tunnels.
콘크리트의 내구성 저하는 수분에 의한 영향을 많이 받으며, 물은 콘크리트를 열화시키는 매개체 역할을 하며 용존되어 있는 황산염, 질산염, 탄산염, 산성비 등은 콘크리트 구조물의 손상을 가속화할 수 있다. The deterioration of the durability of concrete is greatly affected by moisture, and water acts as a medium to deteriorate concrete, and dissolved sulfates, nitrates, carbonates, acid rain, etc. can accelerate damage to concrete structures.
콘크리트가 경화되는 과정인 수화 반응에서 콘크리트 내부에 공극이 형성되는 것은 필연적인데, 이러한 내부 공극은 콘크리트 구조물에 수분이 침투하는 경로가 된다. In the hydration reaction, which is the process of concrete hardening, it is inevitable that pores are formed inside the concrete, and these internal pores become a path for moisture to penetrate into the concrete structure.
내부 공극을 통하여 수분이 침투하면 동결 융해 등에 의하여 미세균열을 발생시킬 수 있고, 미세균열 부분이 점점 패일 경우 동시에 철근 등을 부식시키면서 콘크리트 구조물의 수명에도 큰 영향을 미칠 수 있다.When moisture penetrates through the internal pores, microcracks can occur due to freezing and thawing, etc., and when the microcracks gradually dent, it can also greatly affect the lifespan of concrete structures while simultaneously corroding reinforcing bars.
일반적으로 건설구조물의 대부분을 차지하고 있는 철근콘크리트 구조물은 재령 경과에 따라 구조물 자체가 노후화되며, 4계절이 뚜렷한 국내 환경 온도변화에 따른 수축·팽창에 의한 균열과 박리·박락, 해안에 인접한 건축물은 비래염분이 콘크리트에 침투되면서 철근에 조성된 부동태 피막이 소실(파괴)되어 철근의 부식을 야기하게 되며, 콘크리트 표면은 오염된 대기 중에 장기간 노출되면서 탄산가스와 시멘트 수화물이 반응하여 중성화됨으로써 철근 부식의 원인이 된다. In general, the reinforced concrete structure, which accounts for most of the construction structure, deteriorates with age, and cracks, peeling, and peeling due to contraction and expansion due to temperature changes in the domestic environment with four distinct seasons, and buildings adjacent to the coast are unpredictable. As salt penetrates into the concrete, the passivation film formed on the rebar is lost (destroyed), causing corrosion of the reinforcing bar. do.
이와 같은 열화현상 등에 대한 종래의 아파트 외벽 보수공법에서 단면복구 공법으로는 건축물 외벽 콘크리트의 박리/박락된 부분을 철거하고 청소 후 고분자 수지를 혼입한 폴리머 모르타르를 충전하여 단면을 복구하는 공법과, 미세 균열이 발생한 부위에는 퍼티재를 도포하는 공법이 주로 이루어지고 있다.In the conventional exterior wall repair method for such deterioration, the cross-section restoration method involves removing the exfoliated/exfoliated part of the exterior wall concrete of the building, cleaning it, and then filling the polymer mortar mixed with the polymer resin to restore the cross-section; The method of applying a putty material to the cracked area is mainly made.
이것은 비단 콘크리트 아파트 외벽 뿐만 아니라, PC판, 각종 보드류 이음부분의 코킹용에도 적용되고 있다.This is applied not only to the exterior walls of concrete apartments, but also for caulking of PC boards and joints of various boards.
하지만, 기존의 탄성 퍼티재는 퍼티재 자체의 부착강도가 미흡한 관계로 인하여 프라이머 도포 단계를 반드시 거쳐야 하고, 단면 복구 부위의 경우에도 경화 과정에서 단면수축이 발생하기 때문에 2∼3회 반복작업을 수행해야만 할 뿐만 아니라, 미세크랙발생, 강수나 습기에 의해 계면에서의 층간분리가 일어나 부풀어오르는 불량, 그로 인한 복구면의 탈락이 다시 발생하는 등 작업상 어려움과 단면 복구면의 불량이 지속적인 소비자 불만사항으로 제기되고 있다.However, the existing elastic putty material must go through the primer application step due to the insufficient adhesion strength of the putty material itself. In addition, the occurrence of micro-cracks, delamination of layers at the interface due to precipitation or moisture, resulting in swelling defects, and the failure of the restored surface due to the occurrence of operational difficulties and defects in the restoration surface are persistent consumer complaints. is being raised
본 발명은 상술한 바와 같은 종래 기술상의 제반 문제점들을 감안하여 이를 해결하고자 창출된 것으로, 균열보수 또는 단면복구 효과를 높이되, 인장강도와 신장율이 우수하여 내수성, 부착성, 균열저항성이 뛰어나 특히, PC판, 각종 보드류 이음부분의 코킹용, 시멘트몰탈, 콘크리트 건축물의 내,외벽에 대한 균열 보수 시공에 적합하도록 개선된 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법을 제공함에 그 주된 목적이 있다.The present invention was created to solve the problems in the prior art as described above, and it improves the effect of crack repair or cross-section restoration, but it has excellent tensile strength and elongation, and has excellent water resistance, adhesion, and crack resistance. Its main purpose is to provide an integrated repair method for crack repair or cross-section restoration of concrete structures, which has been improved to be suitable for caulking of joints of PC boards and boards, cement mortar, and crack repairs on the inner and outer walls of concrete structures. have.
본 발명은 상기한 목적을 달성하기 위한 수단으로, 소지면(素地面) 청소 및 양생단계, 양생된 소지면에 대한 수성퍼티 메움단계, 메움부 평탄화를 통한 균열보수 또는 단면복구 단계를 포함하는 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법에 있어서; 상기 소지면 청소 및 양생단계중 소지면에 대한 청소는 먼지나 유분을 제거하고 탈락불를 긁어낸 다음 물로 세척한 후 표면 함수율이 8% 이하가 되도록 건조하는 것을 말하고, 소지면에 대한 양생은 알카리성물질인 KOH 용액으로 스프레이 코팅 후 자연건조하여 표면이 pH 7-9로 유지되게 하는 것을 말하며; 상기 양생된 소지면에 대한 수성퍼티 메움단계는 수성퍼티를 소지면에 발라 고정하는 단계로서, 상기 수성퍼티는 아크릴에멀젼수지와 1액형 반응경화형 우레탄수지(PUD)가 1:1의 중량비로 혼합된 혼합수지를 사용하는 것을 특징으로 하는 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법을 제공한다.The present invention is a means for achieving the above object, cleaning and curing the base surface (素地面) step, the water-based putty filling step for the cured base surface, crack repair or cross-section recovery step through the infill flattening of a concrete structure comprising a step In the integrated repair method for crack repair or cross-section restoration; The cleaning of the base surface during the cleaning and curing step refers to drying the surface to a moisture content of 8% or less after removing dust or oil, scraping the drop off, and then washing with water. It refers to a method to keep the surface at pH 7-9 by air-drying after spray coating; The water-based putty filling step for the cured base surface is a step of applying and fixing water-based putty to the base surface. Provides an integrated repair method for crack repair or cross-section restoration of concrete structures, characterized in that using
본 발명에 따르면, 균열보수 또는 단면복구 효과를 높이되, 인장강도와 신장율이 우수하여 내수성, 부착성, 균열저항성이 뛰어나 특히, PC판, 각종 보드류 이음부분의 코킹용, 시멘트몰탈, 콘크리트 건축물의 내,외벽에 대한 균열 보수 시공에 적합하도록 개선된 효과를 얻을 수 있다.According to the present invention, the effect of crack repair or cross-section restoration is improved, but the tensile strength and elongation rate are excellent, so water resistance, adhesion, and crack resistance are excellent. Improved effect can be obtained to be suitable for crack repair construction on inner and outer walls.
도 1은 본 발명에 따른 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법을 보인 플로우챠트이다.1 is a flowchart showing an integrated repair method for crack repair or cross-section restoration of a concrete structure according to the present invention.
이하에서는, 첨부도면을 참고하여 본 발명에 따른 바람직한 실시예를 보다 상세하게 설명하기로 한다.Hereinafter, a preferred embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.
본 발명에 따른 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법은 도 1의 예시와 같이, 소지면(素地面) 청소 및 양생단계, 양생된 소지면에 대한 수성퍼티 메움단계, 메움부 평탄화를 통한 균열보수 또는 단면복구 단계를 포함한다.The integrated repair method for crack repair or cross-section restoration of a concrete structure according to the present invention, as shown in FIG. 1, includes cleaning and curing the base surface, filling the cured base surface with water-based putty, and flattening the infill. Includes crack repair or section restoration steps.
이때, 상기 소지면(素地面) 청소 및 양생단계는 소지면, 보수 대상이 되는 바탕면, 이를테면 PC판 또는 각종 보드류의 이음부분, 파라펫 부분, 콘크리트 외벽 부분, 각 세대 창틀 부분, 기타 헤어크랙 부분 등에 대한 청소 및 양생을 의미한다.At this time, the cleaning and curing step of the base surface is the base surface, the base surface to be repaired, such as the joint part of the PC board or various boards, the parapet part, the concrete outer wall part, the window frame part of each household, other hair crack parts, etc. It means cleaning and curing for
여기에서, 소지면에 대한 청소는 먼지나 유분을 제거하고 탈락불를 긁어낸 다음 물로 세척한 후 물기제거, 즉 표면 함수율이 8% 이하가 되도록 충분히 건조하는 것을 말한다.Here, the cleaning of the substrate refers to removing dust or oil, scraping off the deciduous light, washing with water, and then drying it sufficiently to remove moisture, that is, to have a surface moisture content of 8% or less.
이 경우, 함수율이 8%를 초과하면 수분함량이 많아 수성퍼티를 도포할 때 부착력이 떨어지고 도포불량이 발생하기 때문에 주의를 요한다.In this case, when the moisture content exceeds 8%, the moisture content is high, so when applying the water-based putty, the adhesion is reduced and the application is poor, so caution is required.
또한, 소지면에 대한 양생은 수분 함수율 관리와 함께 표면이 pH 7-9, 바람직하게는 pH 8로 유지되게 하는 것을 의미한다.In addition, curing for the substrate means maintaining the surface at pH 7-9, preferably pH 8, along with managing the moisture content.
이것은 소지면의 균열이나 혹은 단면 파손에 의해 철근이 노출(보이는 것)된 경우 부동태막 파괴로 인해 철근이 중성화되는 것을 억제하기 위한 것으로, 알카리성을 유지시켜 부동태막의 파괴를 억제하기 위한 것이다.This is to suppress the neutralization of the reinforcing bar due to the destruction of the passivation film when the reinforcing bar is exposed (visible) due to cracks in the substrate or cross-section breakage, and to suppress the destruction of the passivation film by maintaining alkalinity.
이를 위해, 상기 소지면에 대한 양생은 알카리성물질인 KOH 용액(pH 8)으로 스프레이 코팅 후 자연건조하는 방식으로 이루어진다. 이때, KOH 용액은 균열, 파괴된 단면을 통해 침투 후 철근과 만나 부동태막을 강고하게 함으로써 철근을 보호하게 된다.To this end, the curing of the substrate is made in a way that is air-dried after spray coating with an alkaline KOH solution (pH 8). At this time, the KOH solution penetrates through cracks and destroyed cross sections and then meets the rebar and protects the reinforcing bar by strengthening the passivation film.
여기에서, 상기 소지면에 대한 양생 효과를 극대화시키기 위해, 상기 KOH 용액 100중량부에 대해, 붕규산유리 1.5중량부, 올레인산 2.5중량부, 테트라데실글리시딜에테르 2.5중량부를 더 첨가할 수 있다.Here, in order to maximize the curing effect on the substrate, with respect to 100 parts by weight of the KOH solution, 1.5 parts by weight of borosilicate glass, 2.5 parts by weight of oleic acid, and 2.5 parts by weight of tetradecyl glycidyl ether may be further added.
이때, 붕규산유리는 내열충격성이 뛰어나고 화학적내구성이 우수하며 점도를 낮춰 흐름성을 향상시키므로 미세크랙 침투력을 높이기 위해 첨가되고, 올레인산은 크랙 속까지 완전히 침투시켜 피막형성을 촉진하는데 기여한다.At this time, borosilicate glass has excellent thermal shock resistance, excellent chemical durability, and improves flowability by lowering viscosity, so it is added to increase microcrack penetration power, and oleic acid contributes to promoting film formation by penetrating completely into the crack.
그리고, 테트라데실글리시딜에테르(tetradecyl glycidyl ether)는 피막 형성과 함께 경화 고정력을 강화시킨다.And, tetradecyl glycidyl ether strengthens the curing and fixing power along with film formation.
한편, 양생된 소지면에 대한 수성퍼티 메움단계는 수성퍼티를 소지면에 발라 고정하는 단계이다.On the other hand, the water-based putty filling step for the cured base surface is a step of applying and fixing the water-based putty to the base surface.
이때, 수성퍼티는 아크릴에멀젼수지와 1액형 반응경화형 우레탄수지(PUD)가 1:1의 중량비로 혼합된 혼합수지를 사용한다.At this time, the water-based putty uses a mixed resin in which an acrylic emulsion resin and a one-component reaction curing type urethane resin (PUD) are mixed in a weight ratio of 1:1.
여기에서, 아크릴에멀젼수지는 인장강도와 신장율이 뛰어나고, 1액형 반응경화형 우레탄수지는 내수성, 부착성, 균열저항성이 우수하여 소지면에 대한 메움특성, 단면 파손부위에 대한 복구특성이 매우 뛰어나다.Here, the acrylic emulsion resin has excellent tensile strength and elongation, and the one-component reaction curing type urethane resin has excellent water resistance, adhesion, and crack resistance, so it has excellent filling properties for the substrate surface and recovery properties for cross-section damage.
특히, 본 발명에서는 특성 강화를 위해 상기 혼합수지 100중량부에 대해, 피로메트리산 5중량부, 입도 10㎛인 탈탄륨미분 2.5중량부, 디메틸올프로피온산 10중량부, 세레신 5중량부, 탄산스트론튬 15중량부, 탄산바륨 5중량부, 나노입도의 알루미늄산스트론튬 10중량부를 더 첨가할 수 있다.In particular, in the present invention, 5 parts by weight of pyromethric acid, 2.5 parts by weight of detanium fine powder having a particle size of 10 μm, 10 parts by weight of dimethylolpropionic acid, 5 parts by weight of ceresin, strontium carbonate with respect to 100 parts by weight of the mixed resin in order to enhance properties in the present invention 15 parts by weight, 5 parts by weight of barium carbonate, and 10 parts by weight of strontium aluminate having a nano particle size may be further added.
이때, 피로메트리산은 열수축성을 억제하고 슬립성을 강화시켜 내스티키성 유지는 물론 도막의 변형을 억제하기 위해 첨가되고; 탈탄륨미분(Tantalum Powder)은 내산성을 유지하기 위해 첨가되며; 디메틸올프로피온산은 친수성 그룹을 도입하여 잘 섞이도록 하기 위한 것이고; 세레신(Ceresin)은 유화안정화를 유도하여 경화시 유발되는 크랙 발생을 억제하기 위해 첨가된다.At this time, pyrometric acid is added to suppress heat shrinkage and enhance slip properties to maintain stickiness resistance as well as suppress deformation of the coating film; Tantalum Powder is added to maintain acid resistance; Dimethylolpropionic acid is intended to introduce a hydrophilic group to make it well miscible; Ceresin (Ceresin) is added to induce emulsion stabilization to suppress the occurrence of cracks induced during curing.
그리고, 탄산스트론튬은 코팅면의 분말 평활도를 증대시켜 복굴절에 의한 반사능력을 높임으로써 차열, 단열 기능을 강화시키기 위해 첨가되고; 탄산바륨은 응집을 촉진하고, 매끄러운 표면을 형성하도록 유도하며, 자외선을 흡수하지 않아 산화방지, 변색방지에 기여한다.In addition, strontium carbonate is added to increase the powder smoothness of the coating surface to increase the reflective ability due to birefringence, thereby strengthening the heat shielding and insulating functions; Barium carbonate promotes aggregation, induces the formation of a smooth surface, and does not absorb ultraviolet rays, thus contributing to oxidation prevention and discoloration prevention.
아울러, 알루미늄산스트론튬(SrAl2O4)은 입도가 나노화될 경우 그 표면에너지가 커져 균열부위의 변형을 억제하고 열화되는 것을 차단하여 복구면에 대한 유지기간을 연장하는 효과를 얻을 수 있다.In addition, when the particle size of strontium aluminate (SrAl 2 O 4 ) is nanoscaled, its surface energy increases to suppress deformation of cracks and prevent deterioration, thereby extending the maintenance period for the recovery surface.
다른 한편, 메움부 평탄화를 통한 균열보수 또는 단면복구 단계는 소지면과 동일높이를 갖도록 메움부를 평평하게 유지시키는 단계이다.On the other hand, the crack repair or cross-section restoration step through flattening the infill is a step of keeping the infill flat to have the same height as the base surface.
이렇게 처리하게 되면 복구가 완료된다.If you do this, the recovery is complete.
본 발명은 이에 그치지 않고, 복구면에 대한 변색방지, 부착력 향상, 크랙억제, 인장력 강화를 위해 수용성 투명 폴리카보네이트수지 100중량부에 대해, 소디움바이카보네이트 10중량부, 페트롤륨술포네이트 5중량부, 메타크레졸 10중량부를 더 첨가혼합한 복구면 강화보호제를 더 코팅할 수 있다.The present invention is not limited thereto, and for 100 parts by weight of water-soluble transparent polycarbonate resin, 10 parts by weight of sodium bicarbonate, 5 parts by weight of petroleum sulfonate, 10 parts by weight of methacresol may be further coated with a reinforcing protective agent for the recovery surface that is further mixed.
이때, 소디움바이카보네이트는 높은 가교밀도로 인해 일정기간 경과시에도 부착력 및 고정력을 오랫동안 유지할 수 있도록 하여 주고; 페트롤륨술포네이트는 변색을 방지하면서 내화학성과 내약품성을 강화시킬 수 있으며; 메타크레졸은 강화보호제와 피착면에서의 앵커링 기능을 통해 계면 분리를 억제하고 미세크랙을 억제하는데 기여하게 된다.At this time, sodium bicarbonate allows to maintain the adhesion and fixing power for a long time even after a certain period of time due to the high crosslinking density; Petroleum sulfonate can enhance chemical resistance and chemical resistance while preventing discoloration; Methacresol contributes to suppressing interfacial separation and micro-cracks through a reinforced protective agent and an anchoring function on the adherend.
이러한 본 발명의 균열보수면에 대한 이탈 억제력 및 내구성을 확인하기 위해 3mm 두께로 보수막을 만든 시료를 KS M 6010 규정에 의거 부착강도와 인장강도를 측정하였다.In order to confirm the break-out suppression force and durability of the crack repair surface of the present invention, the adhesive strength and tensile strength of a sample made of a repair film with a thickness of 3 mm were measured in accordance with KS M 6010 regulations.
이때, 요구되는 시방 기준은 부착강도와 인장강도 모두 50N/㎠ 이상을 요구하고 있다.At this time, the required specification standards require 50N/cm2 or more of both the adhesive strength and the tensile strength.
테스트 결과, 본 발명에 따른 시료는 부착강도 85N/㎠, 인장강도 90N/㎠가 나왔가 나왔다. 이것은 시방 기준을 훨씬 뛰어넘은 우수한 부착강도로서 탈락 가능성이 극소화되었음을 의미하며, 내구성이 매우 뛰어난 것을 반증하는 것이라 할 수 있다.As a result of the test, the sample according to the present invention had an adhesive strength of 85N/cm2 and a tensile strength of 90N/cm2. This means that the possibility of falling off is minimized with excellent adhesion strength that far exceeds the specification standard, and it can be said that it is a testament to the excellent durability.
Claims (3)
상기 소지면 청소 및 양생단계중 소지면에 대한 청소는 먼지나 유분을 제거하고 탈락불를 긁어낸 다음 물로 세척한 후 표면 함수율이 8% 이하가 되도록 건조하는 것을 말하고, 소지면에 대한 양생은 알카리성물질인 KOH 용액으로 스프레이 코팅 후 자연건조하여 표면이 pH 7-9로 유지되게 하는 것을 말하며;
상기 양생된 소지면에 대한 수성퍼티 메움단계는 수성퍼티를 소지면에 발라 고정하는 단계로서, 상기 수성퍼티는 아크릴에멀젼수지와 1액형 반응경화형 우레탄수지(PUD)가 1:1의 중량비로 혼합된 혼합수지를 사용하는 것을 특징으로 하되,
상기 소지면에 대한 양생중 사용되는 KOH 용액은 상기 KOH 용액 100중량부에 대해, 붕규산유리 1.5중량부, 올레인산 2.5중량부, 테트라데실글리시딜에테르 2.5중량부 더 첨가된 것을 사용하는 것을 특징으로 하는 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법.
In the integrated repair construction method for crack repair or cross-section restoration of a concrete structure, including cleaning and curing the substrate surface, the water-based putty filling stage for the cured substrate surface, and the crack repair or cross-section restoration step through the flattening of the infill;
The cleaning of the substrate during the cleaning and curing steps refers to drying the surface to a moisture content of 8% or less after removing dust or oil, scraping off the drop off, and then washing with water. It refers to a method to keep the surface at a pH of 7-9 by drying it naturally after spray coating;
The water-based putty filling step for the cured base surface is a step of applying and fixing water-based putty to the base surface. It is characterized by using, but
The KOH solution used during curing for the substrate is characterized in that based on 100 parts by weight of the KOH solution, 1.5 parts by weight of borosilicate glass, 2.5 parts by weight of oleic acid, and 2.5 parts by weight of tetradecyl glycidyl ether are further added. An integrated repair method for crack repair or cross-section restoration of concrete structures.
상기 메움부 평탄화를 통한 균열보수 또는 단면복구 단계 후 복구면에 대한 변색방지, 부착력 향상, 크랙억제, 인장력 강화를 위해 강화보호제를 복구면에 코팅하는 단계를 더 수행하되,
상기 강화보호제는 수용성 투명 폴리카보네이트수지 100중량부에 대해, 소디움바이카보네이트 10중량부, 페트롤륨술포네이트 5중량부, 메타크레졸 10중량부를 첨가혼합한 것을 특징으로 하는 콘크리트 구조물의 균열보수 또는 단면복구를 위한 통합보수공법.
The method of claim 1,
After the crack repair or cross-section restoration step through the infill planarization step, the step of coating the restoration surface with a reinforcing protective agent is further performed to prevent discoloration, improve adhesion, suppress cracks, and strengthen the tensile force to the restoration surface,
The reinforcing protective agent is based on 100 parts by weight of the water-soluble transparent polycarbonate resin, 10 parts by weight of sodium bicarbonate, 5 parts by weight of petroleum sulfonate, and 10 parts by weight of metacresol by adding and mixing crack repair or cross-section restoration of a concrete structure integrated repair method for
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| KR102473464B1 (en) * | 2021-12-13 | 2022-12-05 | 신진유지건설 주식회사 | Repair method for damaged and cracked parts of sewage pipe |
| KR102503077B1 (en) * | 2022-08-11 | 2023-02-23 | 주식회사 제이에스건설화학 | Floor construction method using non-slip flooring |
| KR102620230B1 (en) * | 2023-02-06 | 2024-01-02 | 주식회사 리가채움 | Crack repair method of concrete structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019172564A (en) * | 2018-03-26 | 2019-10-10 | 国立大学法人山口大学 | Concrete patching agent |
| KR102141508B1 (en) | 2020-03-27 | 2020-08-06 | 신명순 | Integrated repair reinforcement method for crack repair and cross-section repair of concrete structures |
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| JP2019172564A (en) * | 2018-03-26 | 2019-10-10 | 国立大学法人山口大学 | Concrete patching agent |
| KR102141508B1 (en) | 2020-03-27 | 2020-08-06 | 신명순 | Integrated repair reinforcement method for crack repair and cross-section repair of concrete structures |
Cited By (3)
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| KR102473464B1 (en) * | 2021-12-13 | 2022-12-05 | 신진유지건설 주식회사 | Repair method for damaged and cracked parts of sewage pipe |
| KR102503077B1 (en) * | 2022-08-11 | 2023-02-23 | 주식회사 제이에스건설화학 | Floor construction method using non-slip flooring |
| KR102620230B1 (en) * | 2023-02-06 | 2024-01-02 | 주식회사 리가채움 | Crack repair method of concrete structure |
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