KR20020007274A - Agent for surface treatment of concrete structure - Google Patents
Agent for surface treatment of concrete structure Download PDFInfo
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- KR20020007274A KR20020007274A KR1020010079689A KR20010079689A KR20020007274A KR 20020007274 A KR20020007274 A KR 20020007274A KR 1020010079689 A KR1020010079689 A KR 1020010079689A KR 20010079689 A KR20010079689 A KR 20010079689A KR 20020007274 A KR20020007274 A KR 20020007274A
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- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
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- 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
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- 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
Abstract
Description
본 발명은 콘크리트 구조물의 표면처리제에 관한 것으로, 상세하게는 구조물의 강도를 향상시키고 표면에 이물질이 달라붙는 것을 억제하며 이물질의 광분해 효과를 향상시켜 청결상태를 장기간 유지할 수 있도록 함과 동시에 세척이 용이하여 세정효과를 극대화시킬 수 있도록 하는 콘크리트 구조물의 표면처리제에 관한 것이다.The present invention relates to a surface treatment agent of a concrete structure, and in detail, to improve the strength of the structure, to suppress the adhesion of foreign substances on the surface and to improve the photolysis effect of the foreign substances to maintain a clean state for a long time and at the same time easy to clean It relates to a surface treatment agent of the concrete structure to maximize the cleaning effect.
일반적으로 터널이나 교량 공사 등에 있어서 구조물의 내부에 미세한 구멍 등으로 인하여 빗물 또는 공기 중의 이물질 등이 스며들어 구조물의 강도를 저하시키고 수명을 단축시킬 뿐만 아니라 이로 인하여 크랙이 발생하게 되고 심지어 붕괴될 위험에 노출되는 문제점이 있었다.In general, in tunnels and bridge construction, rain or foreign matters infiltrate into the structure due to fine holes in the structure to reduce the strength of the structure and shorten its lifespan, resulting in cracks and even collapse. There was a problem with exposure.
따라서, 이러한 종래의 콘크리트 구조물은 강도 향상, 열화방지, 누수억제 등을 위하여 콘크리트 구조물의 표면에 표면처리제를 분사하여 내부측 공극에 침투시켜 표면을 외부와 완전하게 차단되도록 도포하여 처리하므로 상기한 효과를 얻을 수 있도록 하였다.Therefore, such a conventional concrete structure is sprayed with a surface treatment agent on the surface of the concrete structure in order to improve strength, prevent deterioration, leakage suppression, etc., so that the surface is completely blocked from the outside by infiltrating into the pores on the inside, the effect described above To get it.
그러나 이러한 종래의 기술은 표면처리제의 도포 후 공기 또는 빗물 등에 함유된 각종 성분의 이물질이 달라붙게 되고 이로 인하여 구조물의 외관을 해치게 될 뿐만 아니라 수시로 청소하여야 하므로 관리 유지비가 크게 상승되고 한번 유성성분 등의 이물질이 달라붙은 경우에는 이물질의 제거가 매우 까다롭고 어려운 문제점이 있었다.However, such a conventional technique is that after the application of the surface treatment agent, foreign matters of various components contained in the air or rain water adhere to each other, which not only damages the appearance of the structure but also needs to be cleaned from time to time. When the foreign matter is stuck, the removal of the foreign matter was very difficult and difficult problem.
따라서 본 발명의 주 목적은 콘크리트 구조물의 표면에 각종 이물질이 달라붙는 것을 억제할 수 있도록 하는 콘크리트 구조물의 표면처리제를 제공하는 데 있다.Therefore, the main object of the present invention is to provide a surface treatment agent for a concrete structure to suppress the adhesion of various foreign matter to the surface of the concrete structure.
본 발명의 다른 목적은 콘크리트 구조물의 표면에 달라붙은 각종 이물질을 광 분해할 수 있도록 하여 청결상태를 장시간 유지할 수 있도록 하는 콘크리트 구조물의 표면처리제를 제공하는 데 있다.Another object of the present invention is to provide a surface treatment agent for a concrete structure to be able to photoly decompose various foreign matter adhering to the surface of the concrete structure to maintain a clean state for a long time.
본 발명의 다른 목적은 콘크리트 구조물의 표면에 달라붙은 이물질을 신속하고 용이하게 제거할 수 있도록 하는 콘크리트 구조물의 표면처리제를 제공하는 데 있다.Another object of the present invention is to provide a surface treatment agent of a concrete structure that can quickly and easily remove the foreign matter adhering to the surface of the concrete structure.
본 발명의 다른 목적은 콘크리트 구조물의 강도 향상, 열화방지 및 누수억제 등의 효과를 얻을 수 있도록 하는 콘크리트 구조물의 표면처리제를 제공하는 데 있다.Another object of the present invention is to provide a surface treatment agent of a concrete structure to obtain the effect of improving the strength, deterioration prevention and leakage control of the concrete structure.
도 1 은 본 발명에 따른 산화티탄의 표면에 광조사 전후를 설명하기 위한 개략도.1 is a schematic view for explaining before and after light irradiation on the surface of the titanium oxide according to the present invention.
도 2 는 본 발명에 따른 산화티탄의 표면에 광분해에 의한 세정 효과를 설명하기 위한 개략도.Figure 2 is a schematic diagram for explaining the cleaning effect by photolysis on the surface of the titanium oxide according to the present invention.
이러한 목적을 달성하기 위하여 본 발명의 콘크리트 구조물의 표면처리제는 규산나트륨(SODIUM SILICATE)과 규산칼륨(POTASSIUM SILICATE)을 각각 27-33 중량%와, 콜로이드 실리카 졸(COLLOID SILICA SOL) 23.5-26.5 중량%와, 산화티탄(TiO2)0.8-1,2 중량% 및 물(WATER) 12.3-17.3중량%로 포함하여 구성된 용액으로 이루어진 것을 특징으로 한다.In order to achieve this purpose, the surface treatment agent of the concrete structure of the present invention is 27-33% by weight of sodium silicate (SODIUM SILICATE) and potassium silicate (POTASSIUM SILICATE) and colloidal silica sol (COLLOID SILICA SOL) 23.5-26.5% by weight And titanium oxide (TiO 2 ) 0.8-1,2 wt% and water (WATER) 12.3-17.3 wt%.
도 1 은 본 발명에 따른 산화티탄의 표면에 광조사 전후를 설명하기 위한 개략도이고 도 2 는 본 발명에 따른 산화티탄의 표면에 광분해에 의한 세정 효과를 설명하기 위한 개략도이다.1 is a schematic view for explaining the light irradiation before and after the surface of the titanium oxide according to the present invention and Figure 2 is a schematic view for explaining the cleaning effect by photolysis on the surface of the titanium oxide according to the present invention.
도 1 에 나타낸 바와 같이, 산화티탄은 고정화시킨 매트릭스 표면에 광을 조사하면 표면이 대단히 강한 친수성(親水性, HYDROPHILIC)을 갖게 된다. 특히 광조사 후의 표면이 기름 등에 대하여 대단히 친화성이 높아 친유성도 병행하여 갖고 있다.As shown in Fig. 1, when titanium oxide is irradiated with light on the surface of the immobilized matrix, the surface of the titanium oxide has very strong hydrophilicity (HYDROPHILIC). In particular, the surface after light irradiation has a very high affinity for oil and the like and also has lipophilic properties in parallel.
도 2 에 나타낸 바와 같이, 산화티탄은 소수성 표면에 표면 중에 친수성 영역이 생성되어 친수부와 소수부가 혼재되어 이루어진 모자이크 구조를 형성하게 되고, 그 결과 표면에 떨어지는 물이나 기름 등이 2 차원적인 모세관 현상에 의해, 수적이나 유적으로 잔류하지 않게 되고 표면에 순간적으로 넓게 퍼지게 된다. 즉 산화티탄의 광유기 초친수성(양매성)으로 인해 산화티탄 내부에 생성된 전자가 산화티탄 자체표면을 환원시키는 과정이 반응 초기과정에 포함된다. 따라서 도 2 에 나타낸 바와 같이, 산화티탄 박판 표면은 먼지 등의 각종 이물질들이 오염되기 어렵다. 나아가 만일 오염된다 하더라도 산화티탄 광촉매의 산화, 분해 반응에 의해 쉽게 세척할 수 있다.As shown in FIG. 2, the titanium oxide forms a mosaic structure in which hydrophilic regions are formed on the hydrophobic surface and a mixture of hydrophilic and hydrophobic portions results in two-dimensional capillary phenomenon. As a result, it does not remain in water droplets or oil droplets, and spreads widely on the surface instantly. That is, the process of reducing the surface of titanium oxide itself by electrons generated inside titanium oxide due to the mineral organic superhydrophilicity (goodness) of titanium oxide is included in the initial process. Therefore, as shown in Fig. 2, the surface of the titanium oxide thin plate is hard to be contaminated with various foreign substances such as dust. Furthermore, even if contaminated, it can be easily washed by oxidation and decomposition reaction of the titanium oxide photocatalyst.
규산나트륨과 규산칼륨은 각각 45중량% 이상이면 조성물의 겔화가 우려되므로 사용이 곤란하다.If sodium silicate and potassium silicate are each 45 weight% or more, since gelation of a composition may be concerned, it is difficult to use.
콜로이드 실리카 졸은 다분산 형태의 미립자로 48중량% 이상이면 안전성이 떨어져 사용이 곤란하다.Colloidal silica sol is a polydisperse fine particles of more than 48% by weight is difficult to use because of poor safety.
한편 혼합물은 콘크리트 표면에 잔존하는 가용성의 Ca+2,Mg+2,Al+3의 화합물, 즉 CaO,Ca(OH)2,CaCO3,MgO,Mg(OH)2,MgCO3,Al(OH)3등과 SiO4 -2이온과 반응하여 CaO·SiO2, MgO·SiO2,Al2O3·SiO2로 통칭되는 실리카 화합물을 생성한다.The mixture, on the other hand, is a compound of soluble Ca +2 , Mg +2 , Al +3 remaining on the concrete surface, namely CaO, Ca (OH) 2 , CaCO 3 , MgO, Mg (OH) 2 , MgCO 3 , Al (OH ) 3, etc. reacts with SiO 4 -2 ions produces a silica compound which is referred to collectively as CaO · SiO 2, MgO · SiO 2, Al 2 O 3 · SiO 2.
따라서 생성된 불용성 실리카 화합물의 세공 안으로 초미립자 콜로이드 실리카가 세공을 메우는 반응이 지속적으로 일어나 최종적으로 콘크리트의 표면층을 무공화하게 되므로 강도를 크게 향상시키게 된다.Therefore, the reaction of the ultrafine colloidal silica filling the pores into the pores of the insoluble silica compound is continuously made to finally make the surface layer of the concrete non-porous, thereby greatly improving the strength.
이러한 본 발명의 바람직한 실시 예를 설명하면 다음과 같다,Referring to the preferred embodiment of the present invention as follows,
본 발명의 콘크리트 표면처리제는 규산나트륨과 규산칼륨 각각 29.8중량%와, 콜로이드 실리카 졸 24.8중량%와, 산화티탄 1.0중량%, 및 물 14.6중량%를 혼합하여 30분에서 45분 정도 상온에서 교반하여 얻는다.The concrete surface treatment agent of the present invention was mixed with 29.8% by weight of sodium silicate and potassium silicate, 24.8% by weight of colloidal silica sol, 1.0% by weight of titanium oxide, and 14.6% by weight of water, and then stirred at room temperature for 30 to 45 minutes. Get
이러한 본 발명은 실시 예에 따른 콘크리트 구조물의 변화를 살펴보면,When the present invention looks at the change of the concrete structure according to the embodiment,
이물질분포(d)에서 무처리물은 38%이고 표면처리물은 2.8%,In the foreign matter distribution (d), 38% of untreated material and 2.8% of surface treated material,
세척력에서 무처리물은 46% 이고 표면처리물은 98%,In cleaning power, 46% of untreated and 98% of surface treated,
곡강도(kg cma2)에서 무처리물은 265 이고 표면처리물은 1527,At bending strength (kg cma 2 ), the untreated material is 265 and the surface treated material is 1527,
인장강도(kg cm/cm2)에서 무처리물은 3.2 이고 표면처리물은 5.8,At tensile strength (kg cm / cm 2 ), the untreated material is 3.2 and the surface treated material is 5.8,
내후성에서 무처리물과 표면처리물 모두는 변화없음,In weather resistance, both untreated and surface treated unchanged,
마모성에서 무처리물은 98% 이고 표면처리물은 9.4%,In wear, 98% of untreated material and 9.4% of surface treated material,
모스경도에서 무처리물은 3.1 이고 표면처리물은 5.7,At Mohs hardness, untreated material is 3.1 and surface treated material is 5.7,
연필경도에서 무처리물은 3.8 이고 표면처리물은 11이다.In pencil hardness, the untreated material is 3.8 and the surface treated material is 11.
여기서 이물질분포는 터널에서 15일간 5개의 샘플을 표본 조사한 평균임.Here, the foreign matter distribution is the average of five samples sampled in the tunnel for 15 days.
세척률은 수돗물을 50-60 kgf/cm2으로 5개의 샘플을 2분간 분사하여 샘플을 표본 조사한 평균치임.The wash rate is the average of sampling a sample of 50-60 kgf / cm 2 tap water for 2 minutes.
이상에서 살펴본 바와 같이, 본 발명의 콘크리트 구조물 표면처리제는 규산나트륨과 규산칼륨을 각각 29.8중량%와, 콜로이드 실리카 졸 24.8중량%와, 산화티탄 1.0중량%, 및 물 14.6중량%를 혼합하여 형성한 것으로서, 콘크리트 구조물의 표면에 각종 이물질이 달라붙는 것을 억제하고 달라붙은 각종 이물질을 광 분해하여 청결상태를 장시간 유지하며 달라붙은 이물질을 신속하고 용이하게 제거할 수 있을 뿐만 아니라 콘크리트 구조물의 강도 향상, 열화방지 및 누수억제 등의 효과를 얻을 수 있다.As described above, the concrete structure surface treatment agent of the present invention was formed by mixing 29.8% by weight of sodium silicate and potassium silicate, 24.8% by weight of colloidal silica sol, 1.0% by weight of titanium oxide, and 14.6% by weight of water. It is possible to prevent various foreign matters from sticking to the surface of concrete structures, to decompose various foreign matters by photolysis, to maintain clean state for a long time, and to quickly and easily remove stuck foreign substances, as well as to improve the strength and deterioration of concrete structures. The effects of prevention and leakage can be obtained.
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| KR100448520B1 (en) * | 2002-01-31 | 2004-09-14 | 한국건설기술연구원 | Performance improver and it's manufacturing process treating surface for reinforcement concrete structures attacked by chloride penetration and carbonation |
| KR100568892B1 (en) * | 2004-03-17 | 2006-04-10 | 박주민 | Inorganic Ceramic paint |
| KR100715517B1 (en) * | 2007-02-28 | 2007-05-08 | 주식회사 포스코건설 | Salt damage-preventing additive for concrete having high durability and concrete composition using it |
| KR100787477B1 (en) * | 2006-12-21 | 2007-12-24 | 요업기술원 | Self-cleaning hydrophilic impregnant for concrete surface protection and construction method using it |
| KR100804402B1 (en) * | 2006-06-07 | 2008-02-15 | 김완기 | Non-organic natural paint and the manufacturing method thereof |
| KR100982229B1 (en) * | 2010-05-13 | 2010-09-14 | (주)디오 | High permeable amphiprotic agent for surface treatment of concrete and process for the preparation thereof |
| KR101240571B1 (en) * | 2011-04-13 | 2013-03-13 | 이종원 | Composition of Preventing Dust-Scattering and Method of Preventing Dust-Scattering Using the Same |
| KR20160025741A (en) | 2014-08-28 | 2016-03-09 | 유한회사 콘원 | Agent for suface treatment of concrete |
| CN105504905A (en) * | 2016-02-03 | 2016-04-20 | 广州希森美克新材料科技有限公司 | Highly wear-resistant transparent coating for metal surface |
| CN109233355A (en) * | 2017-05-22 | 2019-01-18 | 四会市中日化工实业有限公司 | A kind of composite coating |
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| JPH06116512A (en) * | 1992-10-09 | 1994-04-26 | T T Shii:Kk | Production of low-temperature curable inorganic coating agent and method for forming low-temperature curable inorganic coating layer |
| WO1998003607A1 (en) * | 1996-07-19 | 1998-01-29 | Toto Ltd. | Photocatalytic hydrophilic coating composition |
| KR20000016116A (en) * | 1996-05-31 | 2000-03-25 | 시게후치 마사토시 | Antifouling member and antifouling coating composition |
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2001
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR890006761A (en) * | 1987-10-02 | 1989-06-15 | 최익수 | Composition of inorganic coating material excellent in heat resistance and water resistance |
| JPH06116512A (en) * | 1992-10-09 | 1994-04-26 | T T Shii:Kk | Production of low-temperature curable inorganic coating agent and method for forming low-temperature curable inorganic coating layer |
| KR20000016116A (en) * | 1996-05-31 | 2000-03-25 | 시게후치 마사토시 | Antifouling member and antifouling coating composition |
| WO1998003607A1 (en) * | 1996-07-19 | 1998-01-29 | Toto Ltd. | Photocatalytic hydrophilic coating composition |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100448520B1 (en) * | 2002-01-31 | 2004-09-14 | 한국건설기술연구원 | Performance improver and it's manufacturing process treating surface for reinforcement concrete structures attacked by chloride penetration and carbonation |
| KR100568892B1 (en) * | 2004-03-17 | 2006-04-10 | 박주민 | Inorganic Ceramic paint |
| KR100804402B1 (en) * | 2006-06-07 | 2008-02-15 | 김완기 | Non-organic natural paint and the manufacturing method thereof |
| KR100787477B1 (en) * | 2006-12-21 | 2007-12-24 | 요업기술원 | Self-cleaning hydrophilic impregnant for concrete surface protection and construction method using it |
| KR100715517B1 (en) * | 2007-02-28 | 2007-05-08 | 주식회사 포스코건설 | Salt damage-preventing additive for concrete having high durability and concrete composition using it |
| KR100982229B1 (en) * | 2010-05-13 | 2010-09-14 | (주)디오 | High permeable amphiprotic agent for surface treatment of concrete and process for the preparation thereof |
| KR101240571B1 (en) * | 2011-04-13 | 2013-03-13 | 이종원 | Composition of Preventing Dust-Scattering and Method of Preventing Dust-Scattering Using the Same |
| KR20160025741A (en) | 2014-08-28 | 2016-03-09 | 유한회사 콘원 | Agent for suface treatment of concrete |
| CN105504905A (en) * | 2016-02-03 | 2016-04-20 | 广州希森美克新材料科技有限公司 | Highly wear-resistant transparent coating for metal surface |
| CN109233355A (en) * | 2017-05-22 | 2019-01-18 | 四会市中日化工实业有限公司 | A kind of composite coating |
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