KR100596968B1 - Manufacturing method of sillicon emulsion for inhibiting water absorption by percolating through concrete - Google Patents
Manufacturing method of sillicon emulsion for inhibiting water absorption by percolating through concrete Download PDFInfo
- Publication number
- KR100596968B1 KR100596968B1 KR1020050022105A KR20050022105A KR100596968B1 KR 100596968 B1 KR100596968 B1 KR 100596968B1 KR 1020050022105 A KR1020050022105 A KR 1020050022105A KR 20050022105 A KR20050022105 A KR 20050022105A KR 100596968 B1 KR100596968 B1 KR 100596968B1
- Authority
- KR
- South Korea
- Prior art keywords
- concrete
- weight
- silicone composition
- penetration
- aqueous silicone
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
본 발명은 콘크리트의 표면을 보호할 목적으로 표층부에 도포하여 함침시킴으로써 흡수방지층을 형성하여 외부로부터 물 및 염화이온 등의 침투를 억제하기 위한 콘크리트 침투성 흡수방지제용 수성실리콘 조성물 및 그 제조방법에 관한 것이다. 더욱 상세하게는 콘크리트의 구성성분과 유사한 무기질 재료를 원료로 하여 콘크리트 구조물과의 친화력을 증대시킴과 동시에 친환경적이고, 분자량이 작아 침투깊이 확보가 용이하며, 나아가 콘크리트와 완전한 화학적 복합화를 이루어 삼차원의 그물구조를 형성시킴으로써 구조물의 열화를 방지하여 콘크리트 구조물의 내구성을 향상시킬 수 있도록 한 콘크리트 침투성 흡수방지제용 수성실리콘 조성물 및 그 제조방법에 관한 것이다.The present invention relates to an aqueous silicone composition for a concrete permeable absorption inhibitor for preventing the penetration of water and chloride ions from the outside by forming an absorption barrier layer by coating and impregnating the surface layer for the purpose of protecting the surface of the concrete, and a method of manufacturing the same. . More specifically, inorganic materials similar to concrete components are used as raw materials to increase affinity with concrete structures, while being environmentally friendly and having a low molecular weight, making it easy to secure penetration depth. The present invention relates to an aqueous silicone composition for preventing the penetration of concrete, and a method of manufacturing the same, by preventing the deterioration of the structure by forming the structure and improving the durability of the concrete structure.
본 발명의 콘크리트 침투성 흡수방지제용 수성실리콘 조성물은 Mn-Si(OM´)4-n의 일반식을 가지는 규소화합물; 물; 및, 유화제;를 포함하여 구성되는 것을 특징으로 한다.The aqueous silicone composition for a concrete permeable absorption inhibitor of the present invention is a silicon compound having a general formula of M n -Si (OM ′) 4-n ; water; And, an emulsifier; characterized in that comprises a.
콘크리트, 침투, 흡수방지, 알콕시실란, 규소화합물 Concrete, Penetration, Absorption, Alkoxysilane, Silicon Compound
Description
본 발명은 콘크리트의 표면을 보호할 목적으로 표층부에 도포하여 함침시킴으로써 흡수방지층을 형성하여 외부로부터 물 및 염화이온 등의 침투를 억제하기 위한 콘크리트 침투성 흡수방지제용 수성실리콘 조성물 및 그 제조방법에 관한 것으로, 더욱 상세하게는 콘크리트의 구성성분과 유사한 무기질 재료를 원료로 하여 콘크리트 구조물과의 친화력을 증대시킴과 동시에 친환경적이고, 분자량이 작아 침투깊이 확보가 용이하며 나아가 콘크리트와 완전한 화학적 복합화를 이루어 삼차원의 그물구조를 형성시킴으로써 구조물의 열화를 방지하여 콘크리트 구조물의 내구성을 향상시킬 수 있도록 한 콘크리트 침투성 흡수방지제용 수성실리콘 조성물 및 그 제조방법에 관한 것이다.The present invention relates to an aqueous silicone composition for a concrete permeable absorption inhibitor for preventing the penetration of water and chloride ions from the outside by forming an absorption barrier layer by coating and impregnating the surface layer for the purpose of protecting the surface of the concrete, and a method of manufacturing the same. More specifically, it is made of inorganic materials similar to concrete components to increase the affinity with concrete structures, while being environmentally friendly, having a small molecular weight, easy to secure penetration depth, and furthermore, the three-dimensional net is made by chemical complex with concrete. The present invention relates to an aqueous silicone composition for preventing the penetration of concrete, and a method of manufacturing the same, by preventing the deterioration of the structure by forming the structure and improving the durability of the concrete structure.
콘크리트가 공기중에 노출되면 수화물인 Ca(OH)2가 공기중의 CO2와 반응하여 CaCO3를 생성하게 되는데 이러한 작용으로 알칼리성인 콘크리트가 pH 8.5~10의 중성화로 변화되며, 이를 콘크리트의 중성화 또는 열화라 한다. 콘크리트의 열화는 콘크리트의 표면에서 내부를 향하여 진행하며, 열화가 진행함에 따라 철근이 부식된다. 철근이 부식되면 철근의 체적이 팽창하게 되는데, 철근의 체적팽창은 콘크리트 내부에 균열을 발생시키고, 철근 부착강도의 저하, 피복 콘크리트의 박리, 철근의 강도 저하 등 철근콘크리트 구조물의 물리적 성능을 떨어드리는 바, 종국적으로는 구조물 전체의 위기를 초래한다.When the concrete is exposed to air, Ca (OH) 2 , a hydrate, reacts with CO 2 in the air to produce CaCO 3. This action changes the alkaline concrete to neutralization at pH 8.5 ~ 10. It is called deterioration. The deterioration of the concrete proceeds inward from the surface of the concrete, and the steel is corroded as the deterioration progresses. When the steel is corroded, the volume of the steel is expanded. The volume expansion of the steel causes cracks in the concrete, and reduces the physical performance of the reinforced concrete structure such as a decrease in the strength of reinforcing steel, peeling of the coated concrete, and a decrease in the strength of the steel. Finally, it causes a crisis of the whole structure.
한편, 콘크리트는 다공질이기 때문에 습기나 수분을 흡수하며, 결빙점 이하의 온도에서는 흡수된 수분이 동결하면서 수분의 동결팽창으로 콘크리트에 균열이 발생하게 된다. 동결·융해가 반복되면 그에 따라 콘크리트의 균열 또한 진행하며, 이러한 작용이 내부로 진전되면 철근부식 및 열화 등이 수반되어 구조물의 내구성을 저하시키는 문제를 유발한다.On the other hand, since concrete is porous, it absorbs moisture or moisture, and at a temperature below the freezing point, the absorbed moisture freezes, causing cracks in the concrete due to freezing expansion of moisture. When freezing and melting are repeated, the cracking of concrete progresses accordingly, and when this action is advanced to the inside, reinforcing corrosion and deterioration are accompanied, which causes problems of deterioration of the durability of the structure.
상기와 같은 문제를 해결하기 위한 방법으로 콘크리트의 표면에 흡수방지제를 도포하는 것이 있다. 종래에는 콘크리트 표면 도포용 액상형 흡수방지제로 파라핀계 탄화수소화합물, 지방산계 유지를 유화시켜 흡수방지제를 사용해 왔으나, 침투깊이 확보가 어려워 내구성 개선에 그다지 효과적이지 않았다. As a method for solving the above problems there is a coating of the absorption inhibitor on the surface of the concrete. Conventionally, liquid absorbing agents for coating concrete surfaces have been used as emulsifiers by emulsifying paraffinic hydrocarbon compounds and fatty acid-based fats and oils, but they have not been effective in improving durability because it is difficult to secure penetration depth.
이를 개선한 것으로 실리콘 수지나 오일을 유기용제(벤젠, 톨루엔, 크실렌 및 석유류의 솔벤트)에 희석한 발수제 혹은 침투흡수방지제가 있으나, 이들은 용제의 특성상 유독성이어서 공해문제와 인체에 심한 악영향을 미친다는 문제를 수반하기 때문에 현재는 그 사용을 제한하고 있는 실정이다. 뿐만 아니라, 상기와 같은 종래의 흡수방지제는 무기물인 콘크리트와는 달리 유기화합물이어서 이종재료 간의 상이한 특성으로 침투 및 결합에 의한 내구성을 기대하기가 어려운 재료적인 문제점이 있었다.Improvements include water repellents or penetration inhibitors in which silicone resins or oils are diluted in organic solvents (solvents of benzene, toluene, xylene and petroleum), but they are toxic due to the nature of the solvents, and thus have serious adverse effects on pollution and the human body. This situation is currently limited to its use. In addition, such a conventional absorption inhibitor is an organic compound, unlike the concrete of the inorganic material has a material problem it is difficult to expect durability by penetration and bonding due to different properties between different materials.
본 발명은 상기한 종래의 문제를 개선하고자 안출된 것으로서, 콘크리트 구성성분과 유사한 무기질 재료를 원료로 하여 콘크리트 구조물과의 친화력을 증대시킴과 동시에 친환경적인 콘크리트 침투성 흡수방지제용 수성실리콘 조성물 및 그 제조방법을 제공하는데 그 목적이 있다.The present invention has been made to improve the above-mentioned conventional problems, using an inorganic material similar to the concrete components as a raw material to increase the affinity with the concrete structure and at the same time an environmentally friendly water-soluble silicone composition for concrete penetration inhibitors and a method of manufacturing the same The purpose is to provide.
본 발명의 다른 목적은 콘크리트와 완전한 화학적 복합화를 이루어 삼차원의 그물구조를 형성시킴으로써 콘크리트 구조물의 열화를 방지하고 내구성을 향상시키고 나아가 기존 열화가 진행된 콘크리트 구조물에도 적용하여 2차 열화에 대한 내구성을 증대시킬 수 있는 콘크리트 침투성 흡수방지제용 수성실리콘 조성물 및 그 제조방법을 제공하는 것이다.Another object of the present invention is to form a three-dimensional net structure by forming a complete chemical complex with concrete to prevent deterioration of the concrete structure and to improve the durability, and furthermore applied to the concrete structure in which the existing degradation proceeds to increase the durability against secondary degradation It is to provide an aqueous silicone composition for a concrete permeable absorption inhibitor and a method for producing the same.
본 발명의 또 다른 목적은 분자량이 작아 현장적용시 침투의 효율성을 증대시키고, 콘크리트 구조물 표면 도포시 붓, 로울러, 스프레이 작업의 효율성을 향상시킨 콘크리트 침투성 흡수방지제용 수성실리콘 조성물 및 그 제조방법을 제공하는 것이다.Another object of the present invention is to provide an aqueous silicone composition for a concrete penetration inhibitor and a method for producing the same, which have a small molecular weight, which increases the efficiency of penetration when applied to the site, and improves the efficiency of a brush, roller, and spray work when applying a concrete structure surface. It is.
상기한 목적을 달성하고자 본 발명은 Mn-Si(OM´)4-n(여기서, n은 0, 1, 3이고, M과 M´은 CmH2m+1(m=0~8)의 일반식을 갖는 알킬기탄화수소 화합물)의 일반식을 가지는 규소화합물; 물; 및, 유화제;를 포함하여 구성되는 콘크리트 침투성 흡수방지제용 수성실리콘 조성물을 제공한다.The present invention to achieve the above object is M n -Si (OM ') 4-n (where n is 0, 1, 3, M and M' is C m H 2m + 1 (m = 0 ~ 8) An alkyl group hydrocarbon compound having the general formula of; water; And, an emulsifier; provides an aqueous silicone composition for a concrete permeable absorption inhibitor comprising a.
또한, 본 발명은 알콕시실란 100중량부, 실리카 1~3중량부 및 촉매 0.1~2중량부 가열교반하여 중간체를 제조하는 제1단계; 상기 중간체와 3:1의 중량비로 실리콘레진을 혼합하는 제2단계; 및, 유화제 5~8중량부와 물 600중량부를 첨가하여 교반하는 제3단계; 를 포함하여 이루어지는 침투성 흡수방지제용 수성실리콘 조성물의 제조방법을 제공한다.In addition, the present invention comprises the first step of producing an intermediate by heating and stirring 100 parts by weight of alkoxysilane, 1-3 parts by weight of silica and 0.1-2 parts by weight of catalyst; A second step of mixing the intermediate and the silicone resin in a weight ratio of 3: 1; And a third step of adding and stirring 5 to 8 parts by weight of an emulsifier and 600 parts by weight of water; It provides a method for producing an aqueous silicone composition for penetration inhibitors comprising a.
이하, 본 발명을 실시예 및 시험예를 참고하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to Examples and Test Examples.
1. 콘크리트 침투성 흡수방지제용 수성실리콘 조성물1.Aqueous silicone composition for concrete penetration absorbent
본 발명의 콘크리트 침투성 흡수방지제용 수성실리콘 조성물은 Mn-Si(OM´)4-n일반식의 규소화합물, 물 및 유화제로 구성된다. 상기 규소화합물은 콘크리트와 결합하여 흡수방지층을 형성하여 본 발명이 흡수방지제로서 제기능을 발휘할 수 있 도록 하는 역할을 하며, 물은 규소화합물이 피착재인 콘크리트에 균일하게 도포하여 분산될 수 있도록 본 발명을 액상 에멀젼 상태로 존재하도록 하며, 유화제는 규소화합물이 물과 가수분해반응을 일어나지 않도록 안정화시키는 역할을 한다. 이와 같은 본 발명의 흡수방지제용 수성실리콘 조성물은 규소화합물 40~50 중량%; 물 49~59 중량%; 및, 유화제 1중량%;로 조성되도록 하는 것이 안정성확보와 성능발현에 바람직하다.The aqueous silicone composition for the concrete permeable absorption inhibitor of the present invention is composed of silicon compound, water and emulsifier of M n -Si (OM ′) 4-n general formula. The silicon compound combines with concrete to form an absorption barrier layer so that the present invention can function as an absorption barrier agent, and the water can be dispersed by uniformly applying the silicon compound to the concrete as the adherend. It is present in the liquid emulsion state, the emulsifier serves to stabilize the silicon compound does not undergo a hydrolysis reaction with water. Such an aqueous silicone composition for absorption inhibitor of the present invention is 40 to 50% by weight of the silicon compound; 49-59 weight percent of water; And 1% by weight of an emulsifier; it is preferable to ensure stability and expression of performance.
이와 같은 수성실리콘 조성물은 콘크리트에 도포되면 콘크리트의 모세기공을 통하여 기공내에 잔존하는 수분에 의해 규소화합물이 유도 침투되며, 침투되면 수분과 가수분해반응을 일으키고 이어 그 자신이 화학적인 반응을 일으켜 중합체를 형성함과 동시에, 이렇게 형성된 중합체는 콘크리트 구조체의 수화물과도 결합하여 삼차원의 그물구조를 형성하는 침투성 흡수방지막을 형성한다. 특히, 콘크리트 침투성 흡수방지제용 수성실리콘 조성물에서 규소화합물은 저분자량이어서 침투깊이를 확보하는데 유리하여 침투효율성이 증대할 것으로 기대되며, 그 결과 콘크리트 구조물의 내구성이 향상될 것이다.When the aqueous silicone composition is applied to concrete, the silicon compound is induced and penetrated by the moisture remaining in the pores through the capillary pores of the concrete, and when infiltrated, it causes a hydrolysis reaction with water, and then chemically reacts with the polymer itself. At the same time, the polymer thus formed is combined with the hydrate of the concrete structure to form a permeable absorption barrier that forms a three-dimensional network. In particular, the silicon compound in the aqueous silicone composition for the concrete permeability absorption inhibitor is low molecular weight is advantageous to secure the penetration depth is expected to increase the penetration efficiency, as a result will be improved durability of the concrete structure.
다만, 규소화합물의 가수분해반응에서 반응성을 향상시키기 위해 본 발명에 촉매를 더 포함시킬 수 있는데, 상기 촉매는 전이금속인 코발트, 료듐, 팔라듐, 백금, 니켈 등의 전이금속의 할로겐착체가 바람직하며, 이때 할로겐 화합물의 라디칼 개시제로는 아조비스이소부틸로니트릴(AIBN), 과산화벤조일(BPO)을 들 수 있다. 상기 전이금속의 할로겐착체로는 안정성, 반응효율, 경제성 및 반응조건을 고려할 때 염화백금산이 가장 적합하다.However, a catalyst may be further included in the present invention in order to improve reactivity in the hydrolysis reaction of the silicon compound, and the catalyst is preferably a halogen complex of a transition metal such as cobalt, rhodium, palladium, platinum, nickel and the like. At this time, examples of the radical initiator of the halogen compound include azobisisobutylonitrile (AIBN) and benzoyl peroxide (BPO). As the halogen complex of the transition metal, chloroplatinic acid is most suitable in consideration of stability, reaction efficiency, economy and reaction conditions.
본 발명으로 제조된 조성물(n=0)이 콘크리트에 침투하여 진행되는 반응 메카니즘은 아래와 같다.The reaction mechanism in which the composition (n = 0) prepared by the present invention penetrates into concrete is as follows.
[반응식 1]가수분해반응 [Scheme 1] Hydrolysis reaction
Si(OM)4 + 4H2O → Si(OH)4 + 4MOHSi (OM) 4 + 4H 2 O → Si (OH) 4 + 4MOH
[반응식 2]축합반응Reaction condensation
Si(OH)4 + Si(OH)4 → Si2O7 6- + H2OSi (OH) 4 + Si (OH) 4 → Si 2 O 7 6- + H 2 O
[반응식 3]축합중합반응 Condensation polymerization reaction
nSi(OH)4 + nSi(OH)4 → (-02-Si-O-Si-O2-)n nSi (OH) 4 + nSi (OH) 4 → (-0 2 -Si-O-Si-O 2- ) n
상기 [반응식 3]에서 M은 콘크리트 수화물인 Ca(OH)2 혹은 미반응의 유리 K+, Ca2+, Mg2+, Na+, Al3+ 등이다.In the above [Reaction Scheme 3], M is Ca (OH) 2 or unreacted free K + , Ca 2+ , Mg 2+ , Na + , Al 3+, or the like.
상기와 같은 최종 축합중합반응을 거쳐 생성된 '-02-Si-O-Si-O2-' 중합체는 콘크리트 구조물에 침투되면 콘크리트 수화물인 Ca(OH)2는 물론 미반응의 유리 K+, Ca2+, Mg2+, Na+, Al3+ 등과 반응하여 불용성 염을 형성하며, 그 결과 콘크리트의 수밀화가 증진되면서 구조물의 내구성이 향상하게 된다.The '-0 2 -Si-O-Si-O 2- ' polymer produced through the final condensation polymerization reaction as described above is penetrated into the concrete structure Ca (OH) 2 as well as unreacted free K + , Reacts with Ca 2+ , Mg 2+ , Na + , and Al 3+ to form insoluble salts. As a result, the watertightness of concrete is enhanced, thereby improving the durability of the structure.
2. 콘크리트 침투성 흡수방지제용 수성실리콘 조성물의 제조2. Preparation of Aqueous Silicone Composition for Concrete Permeability Absorption Agent
(1)알콕시실란 100 중량부에 대하여 실리카 1~3중량부와 촉매 0.1~2중량부를 가열교반하여 중간체를 제조한다. (1) 1 to 3 parts by weight of silica and 0.1 to 2 parts by weight of the catalyst are heated and stirred to 100 parts by weight of the alkoxysilane to prepare an intermediate.
상기 알콕시실란은 테트라에톡시실란, 테트라메톡시실란, 메틸트리메톡시실란, 에틸트리에톡시실란, 메틸트리에톡시실란, 트리메틸메톡시실란, 트리메틸에톡시실란으로 이루어진 단쇄알킬실란 군에서 선택하여 사용하는 것이 바람직하다. 단쇄알킬실란은 장쇄알킬실란보다 피착재인 콘크리트의 알칼리성에 안전하며, 모체에 충분히 침투하여 콘크리트 구조체의 수화물과 결합하여 삼차원의 그물구조를 형성하여 침투성 흡수방지막을 형성하기 때문이다. The alkoxysilane is selected from the group of short-chain alkylsilanes consisting of tetraethoxysilane, tetramethoxysilane, methyltrimethoxysilane, ethyltriethoxysilane, methyltriethoxysilane, trimethylmethoxysilane and trimethylethoxysilane. It is preferable to use. This is because short-chain alkylsilanes are safer against alkalinity of concrete, which is adherent than long-chain alkylsilanes, and penetrate the mother sufficiently to combine with the hydrate of the concrete structure to form a three-dimensional network structure to form a permeable absorption barrier.
실리카는 알콕시실란의 소수성 성질에 의해 유화제만으로는 장기간의 유화안정성을 기대하기 어려우므로 이를 보완하기 위하여 첨가하는 것으로, 실리카의 다공질 공극에 알콕시실란의 함침을 통하여 유화분산하므로 장기유화안정성을 기대할 수 있게 한다.Silica is difficult to expect long-term emulsification stability by the emulsifier alone due to the hydrophobic nature of the alkoxysilane, and is added to compensate for this. .
(2)상기 중간체와 3:1의 중량비로 장쇄알킬실란인 이소옥틸트리에톡시실란과 이소부틸트리에톡시실란의 1:1의 혼합물을 혼합하고, 이어 유화제와 물을 첨가하여 교반한다. (2) A mixture of 1: 1 of isooctyltriethoxysilane and isobutyltriethoxysilane, which are long-chain alkylsilanes, in a weight ratio of the intermediate and 3: 1, is mixed, followed by stirring by adding an emulsifier and water.
장쇄알킬실란은 비교적 안정한 화합물이나 장기적으로 서서히 피착재인 콘크리트에 침투하여 침투성 흡수방지막의 장기내구성을 강화시키는 역할을 한다. 즉, 단쇄알킬실란에 의한 단기침투로 속성의 성능발현을 기대할 수 있게 되는 동시에, 장쇄알킬실란에 의한 장기침투로 내구성의 강화를 기대할 수 있게 되는 것이다.Long-chain alkylsilanes are relatively stable compounds, but in the long term gradually penetrate into the adherend concrete and serve to strengthen the long-term durability of the permeable absorption barrier. That is, the short-term penetration by short-chain alkylsilane can be expected to express the performance of the property, and the long-term penetration by long-chain alkylsilane can be expected to enhance the durability.
상기 유화제는 물과 반응하여 생성된 규소화합물이 안정화된 상태에 있도록 하기 위하여 첨가된다.The emulsifier is added to ensure that the silicon compound produced by reaction with water is in a stabilized state.
[실시예 1] 콘크리트 침투성 흡수방지제용 수성실라콘 조성물의 제조Example 1 Preparation of an Aqueous Silicone Composition for Concrete Permeability Absorption Agent
(1) 메틸트리메톡시실란 100g에 대하여 실리카 3g와 염화백금산촉매 2g 가열교반하여 중간체를 제조한다. 이때, 상기 실리카는 SiO2 함량이 90%이상, 비표면적이 8000㎡/g이상인 것을 채택하였으며, 상기 염화백금산촉매는 그 농도가 0.1 m mol인 것을 채택하였다. 가열교반은 80 ±10℃에서 3시간 이상 이루어졌다.(1) An intermediate is prepared by heating and stirring 3 g of silica and 2 g of chloroplatinic acid catalyst with respect to 100 g of methyltrimethoxysilane. In this case, the silica has a content of more than 90% of SiO 2 , a specific surface area of more than 8000 m 2 / g, and the chloroplatinic acid catalyst has a concentration of 0.1 m mol. Heat stirring was at least 3 hours at 80 ± 10 ° C.
(2) 상기 중간체 300g에 이소옥틸트리에톡시실란 50g과 이소부틸트리에톡시실란 50g을 혼합한 것을 혼합한다.(2) A mixture of 50 g of isooctyltriethoxysilane and 50 g of isobutyl triethoxysilane was mixed with 300 g of the intermediate.
(3) 유화제 8g을 녹인 물 600g를 첨가하여 교반한다. 상기 유화제는 폴리옥시에틸렌트리올레이트 3g, 불소계유화제 3g 및 솔비탄트리올레이트 2g을 혼합한 것이다. 이때, 물을 4번에 걸쳐 분첨하면서 5000rpm이상의 속도로 1시간 이상 교반하였다.(3) 600 g of water in which 8 g of an emulsifier is dissolved is added and stirred. The emulsifier is a mixture of 3 g of polyoxyethylene trioleate, 3 g of fluorinated emulsifiers and 2 g of sorbitan trioleate. At this time, the water was stirred for 4 hours or more at a speed of 5000 rpm or more for 1 hour or more.
상기 실시예 1의 방법으로 제조된 콘크리트 침투성 흡수방지제용 수성실리콘 조성물의 물성을 확인하기 위해 다음의 시험예 1 내지 4와 같은 시험을 하였다.In order to confirm the physical properties of the aqueous silicone composition for a concrete permeable absorption inhibitor prepared by the method of Example 1, the same test as in Test Examples 1 to 4 was performed.
[시험예 1] 침투깊이 시험Test Example 1 Penetration Depth Test
1.시험방법1. Test Method
KSF-49930에 따라 시멘트, 모래, 물의 중량비를 1:2.5:0.65로 한 모르타르시험체(강도 33.7N/㎟)와 KSF-4009에 의한 콘크리트 시험체(강도 35.5N/㎟)에 각각 0.1ℓ/㎡, 0.2ℓ/㎡, 0.3ℓ/㎡, 0.4ℓ/㎡를 도포하여 14일간 양생실에서 양생한 다음 측정한 침투깊이를 측정하였다. According to KSF-49930, 0.1L / m2, respectively, for the mortar test specimen (strength 33.7N / mm2) with the weight ratio of cement, sand, and water of 1: 2.5: 0.65 and the concrete test specimen (strength 35.5N / mm2) by KSF-4009, respectively. 0.2 l / m 2, 0.3 l / m 2 and 0.4 l / m 2 were coated and cured in a curing room for 14 days, and then the measured penetration depth was measured.
2.시험결과2. Test Results
상기 시험방법에 따라 시험한 결과는 하기의 표1과 같다.Test results according to the test method are shown in Table 1 below.
[표 1]침투깊이[Table 1] Penetration depth
상기 표1에서와 같이 본 발명은 도포량에 따라 기존제품에 비하여 침투깊이가 현저히 증가하는 것을 확인할 수 있다. As shown in Table 1, the present invention can confirm that the penetration depth is significantly increased compared to the existing product according to the application amount.
[시험예 2] 내구성 시험Test Example 2 Durability Test
1.시험방법1. Test Method
내구성 시험을 위해 내흡수성과 염수분무시험을 하였다. 내흡수성시험은 KSF-4930에 따라 내알칼리성 시험후, 저온·고온 반복 저항성 시험후, 촉진내후성 시험후에 각각 물흡수계수비를 측정하는 방법으로 하였으며, 염수분무시험은 KSD-9502에 따라 외관의 이상유무를 확인하였다. 다만, 내흡수성 시험체는 KSF-4930에서 제시한 시험체를 이용하여 사용하였으며, 염수분무시험체는 KSF-4009에 의한 콘크리트시험체 강도 41.1MPa를 사용하였으며, 그 도포량은 0.4ℓ/㎡으로 하였다.Absorption resistance and salt spray test were conducted for durability test. The water absorption resistance test was performed by measuring the water absorption coefficient ratio after the alkali resistance test, the low temperature and high temperature repeated resistance test, and the accelerated weather resistance test according to KSF-4930, and the salt spray test was performed according to KSD-9502. Check the presence or absence. However, the water-absorbent test specimen was used using the test specimen presented in KSF-4930, and the salt spray test specimen was 41.1 MPa of concrete test specimen by KSF-4009, and the coating amount was 0.4 l / m 2.
2.시험결과2. Test Results
[표 2]내흡수성시험[Table 2] Absorption Resistance Test
[표 3]염수분무시험Table 3 Salt Spray Test
상기 표 2 및 표 3에서와 같이 본 발명의 내구성이 기존제품에 비하여 현저히 우수함을 확인할 수 있다. As shown in Table 2 and Table 3 it can be seen that the durability of the present invention is significantly superior to the existing product.
[시험예 3] 흡수방지 시험Test Example 3 Absorption Prevention Test
1.시험방법1. Test Method
KSF-4930에 따라 내투수성 시험을 실시하여 투수비를 측정하였다. 내투수성 시험체는 KSF-4930에 의한 시험체와 KSF-4009에 의한 콘크리트(28일 양생) 시험체 강도 35.5N/㎟에 도포량 0.4ℓ/㎡로 하였다.Permeability ratio was measured by permeability test in accordance with KSF-4930. The water-permeable test body was coated with 0.4 L / m 2 on the strength of 35.5 N / mm 2 of the test body by KSF-4930 and the concrete (28-day curing) test body by KSF-4009.
2.시험결과2. Test Results
[표 4]내투수성능(투수비)[Table 4] Permeability Performance (Permeability Ratio)
상기 표 4에서와 같이 본 발명의 흡수방지성능이 기존제품에 비하여 현저히 우수함을 확인할 수 있다.As shown in Table 4, it can be seen that the absorption preventing performance of the present invention is remarkably superior to existing products.
[시험예 4]염화이온 침투저항성 시험Test Example 4 Chloride Ion Penetration Resistance Test
1.시험방법1. Test Method
콘크리트 및 모르타르에 도포 후 염화이온의 침투저항성을 KSF-4930에 의해 측정하였다. 콘크리트 구조물은 염소이온에 의해 급격히 열화되므로 염화이온에 대한 콘크리트 침투저항성 시험은 제품의 내구성을 측정하는 척도로 활용되며, 이에 염화이온의 침투에 대한 저항성이 우수할수록 내구성이 우수하다고 할 수 있다. KSF-4930기준에는 콘크리트용 흡수방지제의 경우 염화이온에 대한 침투저항 성능을 3.0㎜이하로 규정하고 있다.Penetration resistance of chloride ions after application to concrete and mortar was measured by KSF-4930. As concrete structures are rapidly degraded by chlorine ions, the concrete penetration resistance test for chloride ions is used as a measure of the durability of the product. Therefore, the more resistant to chloride ions, the better the durability. In the KSF-4930 standard, the penetration resistance against chloride ions in the case of concrete absorbers is less than 3.0mm.
2.시험결과2. Test Results
[표 5]염화이온 침투저항 성능(㎜)(도포량 0.4ℓ/㎡)TABLE 5 Chloride Ion Penetration Resistance Performance (mm) (Coating Amount 0.4ℓ / ㎡)
상기 표 5에서와 같이 본 발명의 흡수방지제용 수성실리콘 조성물이 도포된 시험체는 염화이온을 침투시키지 않는다는 것을 확인할 수 있다.As shown in Table 5, it can be confirmed that the test article coated with the aqueous silicone composition for the absorption inhibitor of the present invention does not penetrate chloride ions.
이상과 같이 본 발명의 콘크리트 침투성 흡수방지제용 수성실리콘 조성물은 콘크리트는 물론 콘크리트와 유사한 물성을 갖는 시멘트 모르타르, ALC패널, 석면슬래이트, 섬유보강시멘트판, 벽돌, 석재 등에 적용하면 물, 염화물이온, 산성액 등의 외부환경으로 보호하고 미세한 균열이 있는 자재의 간이방수 등에 광범위하게 사용할 수 있을 것이다. As described above, the water-soluble silicone composition for the concrete permeation absorption inhibitor of the present invention is applied to cement mortar, ALC panel, asbestos slat, fiber reinforced cement plate, brick, stone, etc. which have properties similar to concrete as well as concrete, water, chloride ions, It can be widely used for the protection of external environment such as acidic liquid and simple waterproofing of materials with fine cracks.
이상과 같은 본 발명에 따르면, 콘크리트 구성성분과 유사한 무기질 재료를 원료로 하기 때문에 콘크리트 구조물과의 친화력이 증대됨과 동시에 환경친화적인 효과가 기대된다. According to the present invention as described above, since the inorganic material similar to the concrete components as a raw material, the affinity with the concrete structure is increased and at the same time, an environmentally friendly effect is expected.
또한, 분자량이 작기 때문에 피착재(콘크리트 등)의 내부 깊이 침투하며 그 결과 콘크리트와 완전한 화학적 복합화를 이루어 삼차원의 그물구조를 형성시킴으로써 콘크리트 구조물의 열화를 방지하고 내구성을 향상시키고 나아가 기존 열화가 진행된 콘크리트 구조물에도 적용하여 2차 열화에 대한 내구성을 증대시키는 효과를 발휘하게 된다.In addition, since the molecular weight is small, it penetrates deeply inside the adherend (concrete, etc.), and as a result, forms a three-dimensional mesh structure by forming a complete chemical complex with concrete to prevent deterioration of concrete structures, improve durability, and furthermore, concrete that has been deteriorated. Applied to the structure also exhibits the effect of increasing the durability against secondary degradation.
또한, 본 발명은 콘크리트 구조물 표면에 도포함에 침적, 붓, 로울러, 스프레이 방법으로 용이하게 도포할 수 있다.In addition, the present invention can be easily applied by immersion, brush, roller, spray method to the coating on the surface of the concrete structure.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050022105A KR100596968B1 (en) | 2005-03-17 | 2005-03-17 | Manufacturing method of sillicon emulsion for inhibiting water absorption by percolating through concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050022105A KR100596968B1 (en) | 2005-03-17 | 2005-03-17 | Manufacturing method of sillicon emulsion for inhibiting water absorption by percolating through concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR100596968B1 true KR100596968B1 (en) | 2006-07-04 |
Family
ID=37183652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020050022105A KR100596968B1 (en) | 2005-03-17 | 2005-03-17 | Manufacturing method of sillicon emulsion for inhibiting water absorption by percolating through concrete |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100596968B1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100813290B1 (en) | 2007-01-24 | 2008-03-13 | 홍석주 | Block for retaining wall |
| KR100989919B1 (en) | 2009-04-09 | 2010-10-26 | 윤택준 | Repair method for concrete joint part |
| KR101282655B1 (en) | 2012-09-06 | 2013-07-12 | 권윤조 | Ceramic sealant compositions for concrete structure repair |
| KR101438166B1 (en) * | 2013-12-27 | 2014-09-05 | 주식회사 원준하이테크 | Waterproof Structure with Insulation Using Wet Material and Exposure Waterproof with Exterior Insulation Method of Rooftop thereby |
| KR101581302B1 (en) | 2015-03-30 | 2016-01-11 | 하상우 | Manufacturing and working method of environmental-friendly surface repairing materials for concrete structures using inorganic material |
| KR102352169B1 (en) | 2021-08-17 | 2022-01-20 | 한국유지보수(주) | Infiltrative combined type composition for repairing and reinforcing surface of water-treated concrete structure and construction method for repairing and reinforcing surface of concrete structure using the same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338375A (en) | 1979-06-06 | 1982-07-06 | Daicel Chemical Industries, Ltd. | Surface coating composition |
| US4648904A (en) * | 1986-02-14 | 1987-03-10 | Scm Corporation | Aqueous systems containing silanes for rendering masonry surfaces water repellant |
| US5954869A (en) | 1997-05-07 | 1999-09-21 | Bioshield Technologies, Inc. | Water-stabilized organosilane compounds and methods for using the same |
| JP2002327147A (en) | 2001-04-27 | 2002-11-15 | Asahi Denka Kogyo Kk | Surface-coating material composition for inorganic hardened substance |
| KR20030011778A (en) * | 2000-02-28 | 2003-02-11 | 애드실, 엘씨 | Silane-based, coating compositions, coated articles obtained therefrom and methods of using same |
| JP2003213199A (en) | 2002-01-23 | 2003-07-30 | Ohbayashi Corp | Surface-treating material for concrete and unevenness- modifying material for concrete |
| JP2004067436A (en) | 2002-08-06 | 2004-03-04 | Asahi Denka Kogyo Kk | Highly permeating surface modifier for porous, inorganic material for civil engineering and construction |
-
2005
- 2005-03-17 KR KR1020050022105A patent/KR100596968B1/en active IP Right Grant
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338375A (en) | 1979-06-06 | 1982-07-06 | Daicel Chemical Industries, Ltd. | Surface coating composition |
| US4648904A (en) * | 1986-02-14 | 1987-03-10 | Scm Corporation | Aqueous systems containing silanes for rendering masonry surfaces water repellant |
| US4648904B1 (en) * | 1986-02-14 | 1988-12-06 | ||
| US5954869A (en) | 1997-05-07 | 1999-09-21 | Bioshield Technologies, Inc. | Water-stabilized organosilane compounds and methods for using the same |
| KR20030011778A (en) * | 2000-02-28 | 2003-02-11 | 애드실, 엘씨 | Silane-based, coating compositions, coated articles obtained therefrom and methods of using same |
| JP2002327147A (en) | 2001-04-27 | 2002-11-15 | Asahi Denka Kogyo Kk | Surface-coating material composition for inorganic hardened substance |
| JP2003213199A (en) | 2002-01-23 | 2003-07-30 | Ohbayashi Corp | Surface-treating material for concrete and unevenness- modifying material for concrete |
| JP2004067436A (en) | 2002-08-06 | 2004-03-04 | Asahi Denka Kogyo Kk | Highly permeating surface modifier for porous, inorganic material for civil engineering and construction |
Non-Patent Citations (1)
| Title |
|---|
| 04648904 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100813290B1 (en) | 2007-01-24 | 2008-03-13 | 홍석주 | Block for retaining wall |
| KR100989919B1 (en) | 2009-04-09 | 2010-10-26 | 윤택준 | Repair method for concrete joint part |
| KR101282655B1 (en) | 2012-09-06 | 2013-07-12 | 권윤조 | Ceramic sealant compositions for concrete structure repair |
| KR101438166B1 (en) * | 2013-12-27 | 2014-09-05 | 주식회사 원준하이테크 | Waterproof Structure with Insulation Using Wet Material and Exposure Waterproof with Exterior Insulation Method of Rooftop thereby |
| KR101581302B1 (en) | 2015-03-30 | 2016-01-11 | 하상우 | Manufacturing and working method of environmental-friendly surface repairing materials for concrete structures using inorganic material |
| KR102352169B1 (en) | 2021-08-17 | 2022-01-20 | 한국유지보수(주) | Infiltrative combined type composition for repairing and reinforcing surface of water-treated concrete structure and construction method for repairing and reinforcing surface of concrete structure using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shen et al. | Performance of silane-based surface treatments for protecting degraded historic concrete | |
| AU709998B2 (en) | Emulsions of organosilicon compounds for imparting water repellency to building materials | |
| KR101691845B1 (en) | Mortar composition with cocos fiber for repairing concrete structure and repairing method of concrete structure therewith | |
| KR100820276B1 (en) | Composition compound for repairing concrete structure, manufacturing method thereof and repairing method of concrete structure using the composition compound | |
| KR100596968B1 (en) | Manufacturing method of sillicon emulsion for inhibiting water absorption by percolating through concrete | |
| UA91632C2 (en) | methods of treating surfaces with ionic organosilicon compounds and article with water repellant properties | |
| JPH04249588A (en) | Water-repellent composition for masonry construction | |
| CN101580356B (en) | Water-emulsion organic silicon waterproof agent | |
| KR101166792B1 (en) | Restroative mortar compositions for cross section restorations and repairing method of reinforced concrete using that | |
| KR102156553B1 (en) | Repair mortar composition with excellent weather resistance and repair and reinforcement method using the same | |
| KR20140067096A (en) | Water repellent for concrete | |
| KR102184164B1 (en) | Concrete section recovery and concrete surface repair method using inorganic sodium silicate which can heal self | |
| KR101029150B1 (en) | Manufacturing method of polymer emulsion composite for strengthening and protecting the outer layer of concrete and repairing method of the concrete construction using the composite | |
| KR101310324B1 (en) | Heat insulating construction method of building wall | |
| JP6828875B2 (en) | Concrete protection method | |
| Tosun et al. | Effectiveness of alkyl alkoxy silane treatment in mitigating alkali-silica reaction | |
| KR100542423B1 (en) | The penetration water-proofing method of restraining concrete deterioration | |
| KR102143854B1 (en) | Hybrid lightweight mortar composition | |
| CN114349390A (en) | Organic silicon/inorganic nano material composite waterproof agent and preparation method thereof | |
| JP4535768B2 (en) | Water-based emulsion type water absorption prevention material | |
| KR100364976B1 (en) | Protecting agent of inorganic construction materials and method for manufacturing the same | |
| JPH0670206B2 (en) | Inorganic building material protective agent and method for preparing the same | |
| KR101515171B1 (en) | Inorganic Binder Composition Resisting Flame and Hardening at Normal Temperature and Treating Method of Combustible Article for Resisting Flame Using the Same | |
| KR20210041869A (en) | Bondability improving agent for rapid hardening repair and reinforcement mortar, Rapid hardening repair and reinforcement mortar using the same and Method of repair and reinforcement of concrete structure using the same | |
| KR20200077886A (en) | Aerogel embedded concrete composition and method for manufacturing aerogel embedded concrete using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| A302 | Request for accelerated examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20130625 Year of fee payment: 8 |
|
| FPAY | Annual fee payment |
Payment date: 20140626 Year of fee payment: 9 |
|
| FPAY | Annual fee payment |
Payment date: 20150617 Year of fee payment: 10 |
|
| FPAY | Annual fee payment |
Payment date: 20160516 Year of fee payment: 11 |
|
| FPAY | Annual fee payment |
Payment date: 20170601 Year of fee payment: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20180618 Year of fee payment: 13 |
|
| FPAY | Annual fee payment |
Payment date: 20190515 Year of fee payment: 14 |