KR100634909B1 - Water-proofing composites for bridge or concrete constructions and water-proofing type construction method using thereof - Google Patents
Water-proofing composites for bridge or concrete constructions and water-proofing type construction method using thereof Download PDFInfo
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- KR100634909B1 KR100634909B1 KR1020050024589A KR20050024589A KR100634909B1 KR 100634909 B1 KR100634909 B1 KR 100634909B1 KR 1020050024589 A KR1020050024589 A KR 1020050024589A KR 20050024589 A KR20050024589 A KR 20050024589A KR 100634909 B1 KR100634909 B1 KR 100634909B1
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- concrete structure
- waterproofing
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 45
- 239000004567 concrete Substances 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 title abstract description 16
- 239000002131 composite material Substances 0.000 title 1
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 238000004132 cross linking Methods 0.000 claims abstract description 19
- 239000000839 emulsion Substances 0.000 claims abstract description 18
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- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000006866 deterioration Effects 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- GUUULVAMQJLDSY-UHFFFAOYSA-N 4,5-dihydro-1,2-thiazole Chemical class C1CC=NS1 GUUULVAMQJLDSY-UHFFFAOYSA-N 0.000 claims description 2
- 239000001856 Ethyl cellulose Substances 0.000 claims description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 150000005215 alkyl ethers Chemical class 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 2
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- -1 polyoxyethylene Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 125000005227 alkyl sulfonate group Chemical group 0.000 claims 1
- 239000002356 single layer Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 abstract description 7
- 238000001035 drying Methods 0.000 abstract description 3
- 239000011550 stock solution Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000011041 water permeability test Methods 0.000 description 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 238000006386 neutralization reaction Methods 0.000 description 1
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- 238000003908 quality control method Methods 0.000 description 1
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- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D13/00—Large underground chambers; Methods or apparatus for making them
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
- Sealing Material Composition (AREA)
Abstract
본 발명은 교량 및 콘크리트 구조물의 교면방수 조성물 및 이를 이용한 교면방수 방식공법에 관한 것으로, 그 목적은 신설 및 기존 콘크리트 구조물 상판 방수 및 방수층이 파괴된 구조물에 1회 시공에 교면방수를 가능하게 하여 공사단축 및 공사비를 절감하며, 우수한 신장율을 구비하도록 하여 구조물 상판 균열 발생시 교면 방수층의 파괴를 방지하고, 건조시간을 단축함과 동시에, 우수한 내열성을 구비한 교량 및 콘크리트 구조물의 교면방수 조성물 및 이를 이용한 교면방수 방식공법을 제공하는 것이다.The present invention relates to a bridge waterproofing composition of bridges and concrete structures, and to a bridge waterproofing method using the same. The purpose of the construction is to allow bridge waterproofing in a single construction to a structure in which the waterproofing and waterproofing layers of new and existing concrete structures are destroyed. Reduces construction costs and reduces construction costs, prevents breakage of bridge watertight layer in case of cracks on top of structure, shortens drying time, bridge waterproof composition of bridges and concrete structures with excellent heat resistance and bridges using the same It is to provide a waterproof method.
본 발명은 교량 상판(교면) 및 콘크리트 구조물 상판 열화된(교면방수) 부분을 제거하고, 콘크리트 구조물에 대한 이물질을 제거하는 표면처리단계와, 상기 표면처리된 콘크리트 구조물의 이물질을 고압세정수에 의해 제거하는 이물질 및 열화부 제거단계와, 상기 이물질이 제거된 교량상판(교면) 및 콘크리트 구조물 상판에 폴리머 에멀젼 45 ~ 79wt%, 메타카올린 10 ~ 30wt%, 초미립 필러 10 ~ 30wt%, 분산제 0.3 ~ 3.0wt%, 특성 개선재 0.3 ~ 4.0wt% 로 이루어진 교면방수 조성물 원액을 1회 도포하여 도막을 형성하는 도포단계를 통해 교량 및 콘크리트 구조물에 대한 하여 교면방수 방식공법을 하도록 되어 있다.The present invention is to remove the deteriorated (cross-waterproof) portion of the bridge top plate (bridge) and the concrete structure, and to remove the foreign matter on the concrete structure and the foreign matter of the surface-treated concrete structure by high pressure washing water Removing foreign substances and deterioration part, and 45 ~ 79wt% of polymer emulsion, 10 ~ 30wt% of metakaolin, 10 ~ 30wt% of ultra fine filler, dispersant 0.3 ~ The bridge waterproofing method for bridges and concrete structures is applied to the bridge and the concrete structure through an application step of forming a coating film by coating the crosslinking waterproofing composition stock solution consisting of 3.0wt% and 0.3 ~ 4.0wt% of the property improving material once.
교면방수, 폴리머 에멀젼, 방수, 보수공법, 교량 Bridge Waterproof, Polymer Emulsion, Waterproof, Repair, Bridge
Description
도 1 은 본 발명에 따른 교면방수제 도포 예시도1 is an exemplary view of the application of cross-linking waterproofing agent according to the present invention
도 2 는 본 발명에 따른 교면방수제 도포후 예시도Figure 2 is an exemplary view after applying the cross-linking waterproofing agent according to the present invention
도 3 은 본 발명에 따른 시공블록도3 is a construction block diagram according to the present invention
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
(10) : 교면방수 조성물을 이용한 방수도막(10): waterproofing coating using crosslinking waterproof composition
(20) : 로울러(20): Roller
(30) : 콘크리트 구조물30: concrete structure
본 발명은 교량 또는 콘크리트 구조물의 교면방수 조성물 및 이를 이용한 교면방수 방식공법에 관한 것으로, 신설 구조물 및 콘크리트 열화, 들뜸으로 인한 구조물의 방수층이 파괴되어 방수기능이 상실된 구조물을 1액형 방수조성물에 의해 단시간에 교면방수를 완료할 수 있는 교량 및 콘크리트 구조물의 교면방수 조성물 및 이를 이용한 교면방수 방식공법에 관한 것이다.The present invention relates to a bridge waterproofing composition of bridges or concrete structures, and a bridge waterproofing method using the same. The present invention relates to a bridge waterproof composition of bridges and concrete structures capable of completing the bridge waterproofing and to a bridge waterproofing method using the same.
일반적으로 교면방수 보수는 교량상판 부분의 아스팔트 층 제거후 교면상판을 세정하여 이물질을 제거하고, 그 위에 에폭시계 및 우레탄계로 교면상판을 보수 하였다. 이러한 에폭시계 및 우레탄계열의 방수 공법은 기존 콘크리트 표면에 프라임 도포후 약 3~4단계를 걸쳐 방수제를 도포하여야만 방수효과를 얻을 수 있다. 이와 같이 에폭시 및 우레탄계 교면 방수는 여러 단계로 재료 도포하여야 하는 다단계 시공이므로, 단계별로 철저한 품질관리가 필요하며 각 단계별로 공사 하자가 발생할 우려가 있다. 또한 경화 속도가 느려 교통량이 많은 교량의 경우 차량통제 및 시민 불편사항이 많이 발생되며, 공사기간이 증가되어 노무비 및 공사비가 증가되는 등 경제적 손실이 발생되었다. In general, the bridge waterproofing repair was performed after removing the asphalt layer of the bridge top plate to remove the foreign matter by cleaning the bridge top plate, and repaired the bridge top plate with epoxy and urethane. In the epoxy and urethane-based waterproofing method, the waterproofing effect can be obtained only by applying a waterproofing agent in about 3 to 4 steps after the prime coating on the existing concrete surface. As such epoxy and urethane-based bridge waterproofing is a multi-stage construction that must be applied to the material in several stages, thorough quality control is required step by step, and there is a risk of construction defects in each step. In addition, due to the slow hardening rate, many traffic control and civil inconveniences are generated in the case of bridges with high traffic volume.
특히, 에폭시계의 경우 교량의 온도가 상승할 경우 콘크리트 구조물은 늘어나는 성질이 발생되나 에폭시계는 수축하는 성질이 있어, 기존 콘크리트 구조물 다른 신장률을 가지고 있으며, 이로 인해 장기 부착강도가 저하되는 문제점이 있었다. 또한, 우레탄계 교면 방수재는 열에 민감하므로 이 역시 장기간 부착력에 문제점이 있다. 또한 기존 침투식 교면 방수재는 장기간 방수성능 및 내구성이 떨어지며, 진동 및 처짐 등의 구조적 변형(균열)이 있을 경우 방수성능이 소멸 되는 등 여러가지 문제점이 있었다. In particular, in the case of epoxy-based concrete structure increases when the temperature of the bridge rises, but the epoxy-based shrinkage properties, the existing concrete structure has a different elongation rate, which has a problem that the long-term bond strength is lowered . In addition, since the urethane-based cross-linking waterproofing material is sensitive to heat, this also has a problem in long-term adhesion. In addition, the existing penetration type cross-linking waterproofing material has a long period of waterproof performance and durability, and there are various problems such as waterproofing performance is lost when there is structural deformation (cracking), such as vibration and sag.
본 발명은 상기와 같은 문제점을 해소하기 위한 것으로, 그 목적은 신설 및 기존 콘크리트 구조물 상판 방수 및 방수층이 파괴된 구조물에 1회 시공에 교면방수를 가능하게 하여 공사단축 및 공사비를 절감할 수 있는 교량 및 콘크리트 구조물의 교면방수 조성물 및 이를 이용한 교면방수 방식공법을 제공하는 것이다. The present invention is to solve the problems as described above, the purpose is to bridge construction to reduce the construction cost and construction cost by enabling cross-waterproof in one time construction on the structure of the new and existing concrete structure top plate waterproof and waterproof layer is destroyed And to provide a bridge waterproof composition of the concrete structure and the bridge waterproof method using the same.
본 발명의 또다른 목적은 우수한 신장율을 구비하도록 하여 구조물 상판 균열 발생시 교면 방수층의 파괴를 방지하며, 건조시간을 단축하고 우수한 내열성을 구비한 교량 및 콘크리트 구조물의 교면방수 조성물 및 이를 이용한 교면방수 방식공법을 제공하는 것이다. Another object of the present invention is to provide an excellent elongation rate to prevent breakage of the cross-border waterproofing layer in the event of cracks on the top of the structure, to shorten the drying time and to bridge the water-resistant composition of the bridge and concrete structure having excellent heat resistance and the bridge waterproofing method To provide.
본 발명은 폴리머 에멀젼 45 ~ 79wt%, 메타카올린 10 ~ 30wt%, 초미립 필러 10 ~ 30wt%, 분산제 0.3 ~ 3.0wt%, 특성 개선재 0.3 ~ 4.0wt%로 이루어져 있다.The present invention consists of a polymer emulsion 45 ~ 79wt%,
상기 폴리머 에멀젼은 도막 방수재의 결합재로 사용이 되는 것으로, 수분의 이동 및 침입을 차단하고 바탕 콘크리트와의 부착력을 증대시키기 위하여 첨가되며, 아크릴계 에멀젼을 사용한다. 아크릴계 에멀젼은 히드록시에틸아크릴레이트, 히드록시에틸메타아크릴레이트, 에틸헥사아크릴레이트, 부틸아크릴레이트, 부틸메타아크릴레이트를 공중합 한 것 또는 스티렌과 공중합 한 것을 사용한다. The polymer emulsion is used as a binder of the coating waterproofing material, and is added to block the movement and invasion of moisture and increase adhesion to the ground concrete, and uses an acrylic emulsion. Acrylic emulsions are those copolymerized with hydroxyethyl acrylate, hydroxyethyl methacrylate, ethyl hexaacrylate, butyl acrylate, butyl methacrylate or copolymerized with styrene.
본 발명에 사용된 아크릴 에멀젼은 점도 150 ~ 250 mPaㆍs, 비중 1.03, 평균입자 크기 0.3 ~ 2.0 ㎛, pH 7 ~ 8 이다. 아크릴 에멀젼의 함량이 45wt% 미만일 경우에는 방수성능 및 신율이 감소하게 되며, 79wt% 초과인 경우에는 도막의 두께가 감소하고, 표면 경도가 낮게 된다. 또한, 상기 폴리머 에멀젼 성분은 열에 특히 강한 특성을 구비하고 있으며, 고온에서도 고유 특성을 구비하고 있어 150℃에서 30분간 열을 가했을 때의 치수안정성을 의미하는 물성값으로 ±2.0% 이내의 치수변화를 갖도록 되어 있다. The acrylic emulsion used in the present invention has a viscosity of 150 to 250 mPa · s, specific gravity of 1.03, an average particle size of 0.3 to 2.0 µm, and a pH of 7 to 8. When the content of the acrylic emulsion is less than 45wt%, the waterproofing performance and elongation are reduced, and when the content of the acrylic emulsion is more than 79wt%, the thickness of the coating film is reduced, and the surface hardness is low. In addition, the polymer emulsion component has a particularly strong property against heat, and has a unique property even at high temperatures, and has a dimensional change within ± 2.0% as a physical property value indicating dimensional stability when heat is applied at 150 ° C. for 30 minutes. It is.
상기 메타카올린은 카올린 광물을 600 ~ 800℃ 정도로 열처리를 하여 활성을 부여한 것으로, 주요성분은 SiO2, Al2O3, Fe2O3이며, 평균입자의 크기는 1 ~ 3㎛, 비중은 2.6이다. 이 메타카올린은 콘크리트의 공극으로 침투하여 에트링자이트를 생성하여 콘크리트 조직을 치밀하게 함으로서 내구성 및 부착강도를 향상시켜 방수 도막의 들뜸을 방지한다. 메타카올린의 함량이 10wt% 미만인 경우에는 도막의 들뜸 방지에 효과가 없고, 30wt% 초과하는 경우에는 도막의 탄성이 감소하게 된다. The metakaolin is to give the activity by heating the kaolin mineral at about 600 ~ 800 ℃, the main components are SiO 2 , Al 2 O 3 , Fe 2 O 3 , the average particle size is 1 ~ 3㎛, specific gravity is 2.6 to be. The metakaolin penetrates into the pores of the concrete to produce ettringite, densifying the concrete structure, thereby improving durability and adhesive strength, thereby preventing the waterproof coating from rising. If the content of metakaolin is less than 10wt%, it is not effective to prevent the lifting of the coating film, and if it exceeds 30wt%, the elasticity of the coating film is reduced.
상기 초미립 필러는 입자의 크기가 5마이크론 이하의 입자로서 일정한 두께의 도막을 생성시키기 위한 것으로, 실리카흄, 실리카분말, 탄산칼슘, 산화티탄(TiO2) 중에서 하나 이상을 선택하여 혼합 첨가되며, 10wt% 미만인 경우에는 그 효과가 떨어지게 되며, 30wt% 초과할 경우에는 도막의 신율을 감소시켜 하지 콘크리트면의 균열에 대한 저항성이 감소하게 된다.The ultra-fine filler is a particle having a particle size of 5 microns or less to produce a coating film having a constant thickness, and is selected by adding one or more selected from silica fume, silica powder, calcium carbonate, and titanium oxide (TiO 2 ), 10wt If it is less than%, the effect is reduced, and if it exceeds 30wt%, the elongation of the coating film is reduced, thereby reducing the resistance to cracking of the concrete surface.
상기 분산제는 폴리머 에멀젼과 무기물질의 균일한 분산성을 확보하기 위한 것으로, 알킬설포네이트, 설포네이트 오일, 알킬에테르, 폴리옥시에틸렌계 등의 음이온계 또는 비이온계 분산제를 하나 이상 선택하여 혼합 첨가한다. 0.3wt% 미만인 경우에는 무기물질의 균일한 분산성을 얻기 어렵고, 3.0wt% 초과인 경우에는 과분 산으로 재료의 침강현상이 발생할 수 있다.The dispersant is to ensure uniform dispersibility of the polymer emulsion and the inorganic material, and at least one anionic or nonionic dispersant such as alkylsulfonate, sulfonate oil, alkyl ether, and polyoxyethylene-based is selected and added. do. If it is less than 0.3wt%, it is difficult to obtain uniform dispersibility of the inorganic material. If it is more than 3.0wt%, sedimentation may occur due to hyperdispersion.
상기 특성 개선재는 저장 안정성 및 작업성 등을 확보하기 위한 것으로, 메틸셀루로스, 에틸셀루로스, 폴리아크릴레이트, 실리콘계 소포제, 이소티아졸린 유도체, 부틸린옥사이드 등과 같이, 방부재, 증점제, 소포제 등을 사용한다. 상기 특성 개선재는 0.3wt% 미만인 경우에는 슬러리에 기포가 발생되어 매끈한 도막 표면을 확보하기가 어렵고, 4wt% 초과인 경우에는 롤라나 붓 등에 의한 시공성이 저하된다. The property improving material is to ensure storage stability and workability, and the like, such as methyl cellulose, ethyl cellulose, polyacrylate, silicone-based antifoaming agent, isothiazoline derivative, butyline oxide, and the like, antiseptic agent, thickener, antifoaming agent, and the like. do. When the property improving material is less than 0.3 wt%, bubbles are generated in the slurry, making it difficult to secure a smooth coating surface. When the property improving material is more than 4 wt%, workability due to a roll or a brush is lowered.
이하 본 발명을 실시예에 의거하여 상세히 설명하면 다음과 같다. Hereinafter, the present invention will be described in detail with reference to Examples.
실시예 1Example 1
아크릴 에멀젼 61wt%, 메타카올린 20wt%, 초미립필러 15wt%, 분산제 1.5wt%, 특성개선제 2.5wt%로 이루어진 교면 방수재 조성물을 구조물에 1.0㎜의 두께로 1 회 도포하여 도막을 형성한 후, 이에 대하여 인장강도, 접착강도, 신장율, 내열치수안정성, 지촉건조시간, 내투수성, 내균열성 시험을 하였으며, 그 결과는 [표1]과 같다. The cross-linking waterproofing composition composed of acrylic emulsion 61wt%, metakaolin 20wt%, ultra fine filler 15wt%, dispersant 1.5wt%, characteristic improving agent 2.5wt% was applied to the structure once with a thickness of 1.0mm to form a coating film, Tensile strength, adhesive strength, elongation rate, thermal dimensional stability, dry contact time, water permeability and crack resistance were tested. The results are shown in [Table 1].
[표1]Table 1
상기 [표1]에서 알 수 있듯이, 본원발명을 이용한 도막은 신장율이 150% 이상이면서 강도값이 우수하고, 투수되지 않고 균열이 없음을 알 수 있다. As can be seen from the above [Table 1], the coating film using the present invention can be seen that the elongation is 150% or more, the strength value is excellent, not permeable and there is no crack.
실시예 2Example 2
아크릴 에멀젼 44wt%, 메타카올린 27wt%, 초미립필러 25wt%, 분산제 1.5wt%, 특성개선제 2.5wt%로 이루어진 교면 방수재 조성물을 구조물에 1.0㎜의 두께로 1 회 도포하여 도막을 형성한 후, 이에 대하여 인장강도, 접착강도, 신장율, 내투수성 시험을 하였으며, 이를 실시예 1 의 조성비와 비교하였다. 그 결과는 [표2]와 같다. The cross-linking waterproofing composition composed of acrylic emulsion 44wt%, metakaolin 27wt%, ultrafine filler 25wt%, dispersant 1.5wt%, characteristic improver 2.5wt% was applied to the structure once with a thickness of 1.0mm to form a coating film, Tensile strength, adhesive strength, elongation rate, and water permeability test were performed, and these were compared with the composition ratio of Example 1. The results are shown in [Table 2].
[표2][Table 2]
실시예 3Example 3
아크릴 에멀젼 50wt%, 메타카올린 31wt%, 초미립필러 15wt%, 분산제 1.5wt%, 특성개선제 2.5wt%로 이루어진 교면 방수재 조성물을 구조물에 1.0㎜의 두께로 1 회 도포하여 도막을 형성한 후, 이에 대하여 인장강도, 접착강도, 신장율, 내투수성 시험을 하였으며, 이를 실시예 1 의 조성비와 비교하였다. 그 결과는 [표3]과 같다. A cross-linking waterproofing composition composed of 50 wt% acrylic emulsion, 31 wt% metakaolin, 15 wt% ultrafine filler, 1.5 wt% dispersant, and 2.5 wt% dispersant was applied to the structure once with a thickness of 1.0 mm to form a coating film. Tensile strength, adhesive strength, elongation rate, and water permeability test were performed, and these were compared with the composition ratio of Example 1. The results are shown in [Table 3].
[표3]Table 3
실시예 4Example 4
아크릴 에멀젼 61wt%, 메타카올린 20wt%, 초미립필러 15wt%, 분산제 1.5wt%, 특성개선제 2.5wt%로 이루어진 교면 방수재 조성물을 구조물에 1.0㎜의 두께로 1 회 도포하여 도막을 형성하였으며, 종래의 도막 방수재조성물(A제품)을 종래의 방법에 의해 3 회 도포하여 도막을 형성한 후, 이에 대한 물성을 대비하였다. 그 결과는 [표4]와 같다. A cross-linking waterproofing composition composed of acrylic emulsion 61wt%, metakaolin 20wt%, ultrafine filler 15wt%, dispersant 1.5wt%, characteristic improving agent 2.5wt% was applied to the structure once with a thickness of 1.0mm to form a coating film, The coating film waterproofing material composition (product A) was applied three times by a conventional method to form a coating film, and then the physical properties thereof were prepared. The results are shown in [Table 4].
[표4]Table 4
상기에서와 같이, 본 발명의 도막 방수재 조성물은 종래의 제품에 비해 신장율 및 내열치수안정성이 매우 우수한 효과가 있음을 알 수 있다.As described above, it can be seen that the coating film waterproofing material composition of the present invention has a very excellent effect of elongation and heat resistance stability compared to the conventional product.
상기의 시험은 KS F 4932에 규정된 교면용 도막방수재의 각종 품질시험에 준하여 실험을 하였으며, 실시예 4에서 비교한 A 제품은 국내에서 시판되고 있는 K사의 도막 방수재 제품을 비교 실험 대상으로 하였다.The test was conducted in accordance with various quality tests of the cross-coating waterproofing material prescribed in KS F 4932, the product A compared in Example 4 was made to compare the coating film waterproofing products of K company in the domestic market.
이하 상기와 같은 본 발명의 교면방수 조성물을 이용한 교면방수 공법을 설명하면 다음과 같다. Hereinafter, a description will be given of the cross-linking waterproofing method using the cross-linking waterproofing composition of the present invention as described above.
도 1 은 본 발명에 따른 교면방수제 도포 예시도를, 도 2 는 본 발명에 따른 교면방수제 도포 완료 후 후 예시도를, 도 3 은 본 발명에 따른 시공블록도를 도시한 것으로, 본 발명은 교량 상판(교면) 및 콘크리트 구조물 상판 열화된(교면방수) 부분을 제거하고, 콘크리트 구조물에 대한 이물질을 제거하는 표면처리단계(S100), 상기 표면처리된 콘크리트 구조물의 이물질을 고압세정수에 의해 제거하는 이물질 및 열화부 제거단계(S200), 상기 이물질이 제거된 교량상판(교면) 및 콘크리트 구조물 상판에 교면방수 원액을 도포하는 도포단계(S300)으로 이루어져 있다.1 is an exemplary view of the application of the cross-linking waterproofing agent according to the present invention, Figure 2 is an exemplary view after completion of the application of the cross-linking waterproofing agent according to the invention, Figure 3 shows a construction block diagram according to the present invention, the present invention is a bridge Surface treatment step (S100) to remove the deteriorated (cross-waterproof) portion of the upper plate (bridge) and concrete structure, and remove foreign substances on the concrete structure, to remove the foreign substances of the surface-treated concrete structure by high pressure washing water The foreign material and deterioration unit removal step (S200), the bridge top plate (bridge), and the coating step of applying a cross-linked waterproofing solution to the concrete structure top plate is removed (S300).
상기 표면처리단계(S100)는 염해, 중성화(탄산화), 화학적 부식 및 구조적 하중으로 인한 교면 균열 등과 같은 노후화 현상에 의해 발생된 교면방수 파괴층에 대하여 교면 상판에서의 교면방수 들뜸, 균열 및 파괴된 부분을 제거 하는 것으로, 교면방수 층 표면을 그라인더 등의 공구를 이용하여 완전 제거한다. The surface treatment step (S100) is a cross-flood waterproof lifting, cracking and fractured in the cross-floor plate for the cross-sectional waterproof fracture layer caused by aging phenomenon such as salt damage, neutralization (carbonation), chemical corrosion and structural load By removing the part, the surface of the crosslinked waterproof layer is completely removed by using a tool such as a grinder.
상기 이물질 및 열화부 제거단계(S200)는 치핑 및 그라인딩된 구조물의 표면을 100~150㎏/㎡ 의 고압세정기를 사용하여 이물질을 완전히 제거한다.The debris and deterioration unit removing step (S200) completely removes debris by using a high pressure cleaner of 100 to 150 kg / m 2 on the surface of the chipped and ground structure.
상기 교면방수제 도포단계(S300)는 폴리머 에멀젼 45 ~ 79 wt%, 메타카올린 10 ~ 30wt%, 초미립 필러 10 ~ 30wt%, 분산제 0.3 ~ 3.0wt%, 특성 개선재 0.3 ~ 4.0wt%로 이루어진 교면방수 조성물을 이용한 것으로, 로울러나 또는 에어스프레이건 등을 사용하여 원액 그대로 1.0㎏f/㎠ 함침시켜 균일하게 도포 한다.The cross-linking waterproofing agent application step (S300) is a cross-section consisting of polymer emulsion 45 ~ 79 wt%,
본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기록의 범위내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims record.
이와 같이 본 발명은 콘크리트 열화 및 구조적 균열을 받아 교면방수층이 파괴된 부위에 1 회 도포하여 교면방수층을 형성할 수 있어 신속한 보수가 가능하고, 이로 인해 공사기간이 단축되며, 공사비가 절감되는 등 경제적 효과가 있다.In this way, the present invention can be quickly applied to the site where the bridge waterproof layer is destroyed by the concrete deterioration and structural cracks to form the bridge waterproof layer, which can be quickly repaired, thereby shortening the construction period and reducing the construction cost. It works.
또한, 본 발명은 우수한 신장율을 구비하고 있어, 구조적 힘에 의해 교면상판에 균열이 발생되더라도 교면 방수층의 파괴를 방지할 수 있다. In addition, the present invention is provided with an excellent elongation rate, it is possible to prevent breakage of the cross-linking waterproof layer even if a crack occurs in the cross-linked top plate by the structural force.
또한, 건조시간이 1 시간 정도이고 열에 매우 강하므로 교면방수 조성물 도포후 1 시간 후에 800℃ 이상의 아스팔트 포장을 가능하게 하는 등 많은 효과가 있다. In addition, since the drying time is about 1 hour and is very resistant to heat, there are many effects such as enabling asphalt pavement of 800 ° C. or more after 1 hour after application of the crosslinking waterproofing composition.
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| KR100771195B1 (en) * | 2007-07-30 | 2007-10-29 | 박승규 | Waterproofing composition for asphart shingles and manufacturing method of thereof |
| KR101122254B1 (en) * | 2010-04-21 | 2012-03-21 | 권오혁 | Aqueous membrane waterproof agent for concrete structure and preparation process of the same |
| KR101965224B1 (en) * | 2018-11-06 | 2019-04-04 | 비제이엠텍 주식회사 | Water-proofing composition for bridge surface and water-proofing method thereof |
| US20200354281A1 (en) * | 2019-05-09 | 2020-11-12 | Zirconia Inc. | Protective coatings for concrete |
| US11859091B2 (en) * | 2019-05-09 | 2024-01-02 | Zirconia Inc. | Protective coatings for ferrous substrates |
| KR102106867B1 (en) * | 2019-08-20 | 2020-05-07 | (주)한국리페어기술 | Waterproofing composition of a bridge or concrete constructions, waterproof sheet using the same, and waterproofing construction methods thereof |
| KR102079665B1 (en) * | 2019-09-04 | 2020-02-20 | 주식회사 성현티엠 | Crack-repairing compound having high elasticity and construction method using the same |
| KR102120614B1 (en) * | 2020-03-25 | 2020-06-10 | 주식회사 한국리페어기술 | Waterproof and waterproof methods for a bridge or concrete constructions using the same |
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| KR100453631B1 (en) | 2001-12-18 | 2004-10-20 | 바이켐 주식회사 | Composition of hydraulic setting water soluble paint |
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| KR101000497B1 (en) | 2010-09-14 | 2010-12-14 | (주)실리칼플로어 | The concrete injection repairing agent and method for confirmation structure's inside air gap and waterstops using thereof |
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