KR100769229B1 - Process for waterproofing surface of bridges - Google Patents
Process for waterproofing surface of bridges Download PDFInfo
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- KR100769229B1 KR100769229B1 KR1020060138312A KR20060138312A KR100769229B1 KR 100769229 B1 KR100769229 B1 KR 100769229B1 KR 1020060138312 A KR1020060138312 A KR 1020060138312A KR 20060138312 A KR20060138312 A KR 20060138312A KR 100769229 B1 KR100769229 B1 KR 100769229B1
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- waterproofing
- primer
- urethane
- layer
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 26
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004568 cement Substances 0.000 claims abstract description 27
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 15
- 229920000570 polyether Polymers 0.000 claims abstract description 15
- 229920005862 polyol Polymers 0.000 claims abstract description 15
- 150000003077 polyols Chemical class 0.000 claims abstract description 15
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract description 11
- 239000012948 isocyanate Substances 0.000 claims abstract description 11
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 11
- 229920001451 polypropylene glycol Polymers 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 8
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 8
- HHBXONIFOUTHAX-UHFFFAOYSA-N n,n-dichloro-6-methylidenecyclohexa-2,4-dien-1-amine Chemical compound ClN(Cl)C1C=CC=CC1=C HHBXONIFOUTHAX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 6
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000010426 asphalt Substances 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 238000004132 cross linking Methods 0.000 claims description 5
- 238000006068 polycondensation reaction Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 238000012643 polycondensation polymerization Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 4
- 230000008034 disappearance Effects 0.000 abstract description 3
- 229920006311 Urethane elastomer Polymers 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 description 2
- 241001112258 Moca Species 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- -1 polyoxypropylene Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- KUDPGZONDFORKU-UHFFFAOYSA-N n-chloroaniline Chemical compound ClNC1=CC=CC=C1 KUDPGZONDFORKU-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
본 발명은 교면 방수 공법에 관한 것으로, 보다 상세하게는 교량의 콘크리트 표면에; 폴리에테르폴리올과 에틸렌글리콜, 이소시아네이트의 축중합물인 우레탄계 프라이머와 시멘트를 혼합(프라이머+시멘트 혼합물)하여 도포 후; 폴리에테르폴리올과 톨루엔디이소시아네이트를 축중합한 주제와 폴리옥시프로필렌글리콜, 메틸렌비스클로로아닐린으로 구성된 경화제를 혼합하여 도포하여 우레탄방수층을 1차로 형성한 후; 상기 프라이머+시멘트 혼합물을 도포 후; 합성고무인 클로로프렌고무계를 도포하여 2차방수층을 형성한 후; 아스팔트 콘크리트층(아스콘층)을 적층하므로써; 방수층의 항침과 소실을 불식시키며 이중방수에 의한 방수효능 강화, 아스팔트 콘크리트층(아스콘층)과 방수층간의 우수한 접착력으로 이형(밀림 등)현상 방지, 탄성제로써 저항성(하지의 수축, 팽창, 균열, 진동, 온도변화 등) 우수, 고강도 우레탄으로 내구성 등이 뛰어난 교량 방수 공법에 관한 것이다.The present invention relates to a bridge waterproofing method, more specifically to the concrete surface of the bridge; After application by mixing (primer + cement mixture) a urethane-based primer and a cement which are polycondensates of polyether polyol, ethylene glycol and isocyanate; After the polyether polyol and toluene diisocyanate have been condensed and applied with a curing agent composed of polyoxypropylene glycol and methylenebischloroaniline to form a urethane waterproofing layer first; After applying the primer + cement mixture; After applying a chloroprene rubber-based synthetic rubber to form a secondary waterproofing layer; By laminating asphalt concrete layers (ascon layers); It prevents the anti-settling and disappearance of the waterproof layer, strengthens the waterproofing effect by double waterproofing, prevents the phenomena of the release (such as jungle) with excellent adhesion between the asphalt concrete layer (ascon layer) and the waterproof layer, and resists the elasticity (shrinkage, expansion, cracking, Vibration, temperature change, etc.) and high strength urethane is a bridge waterproof method with excellent durability.
교량, 교면, 방수 Bridges, bridges, waterproof
Description
도1은 본 발명에 따른 교면 방수층의 단면도.1 is a cross-sectional view of the cross-sectional waterproofing layer according to the present invention.
*** 도면의 주요부분에 대한 부호설명 ****** Explanation of main parts of drawing ***
10. 콘크리트층 20. 프라이머+시멘트 층10.
30. 우레탄고무계 40. 프라이머+시멘트 층30. Urethane Rubber 40. Primer + Cement Layer
50. 클로로프렌고무계 60. 아스팔트 콘크리트(아스콘)층50.
본 발명은 교면 방수 공법에 관한 것으로, 보다 상세하게는 교량의 콘크리트 표면에; 폴리에테르폴리올과 에틸렌글리콜, 이소시아네이트의 축중합물인 우레탄계 프라이머와 시멘트를 혼합(프라이머+시멘트 혼합물)하여 도포 후; 폴리에테르폴리올과 톨루엔디이소시아네이트를 축중합한 주제와 폴리옥시프로필렌글리콜, 메틸렌비스클로로아닐린으로 구성된 경화제를 혼합하여 도포하여 우레탄방수층을 1차로 형성한 후; 상기 프라이머+시멘트 혼합물을 도포 후; 합성고무인 클로로프렌고무계를 도포하여 2차방수층을 형성한 후; 아스팔트 콘크리트층(아스콘층)을 적층하므로써; 방수층의 항침과 소실을 불식시키며 이중방수에 의한 방수효능 강화, 아스팔트 콘크리트층(아스콘층)과 방수층간의 우수한 접착력으로 이형(밀림 등)현상 방지, 탄성제로써 저항성(하지의 수축, 팽창, 균열, 진동, 온도변화 등) 우수, 고강도 우레탄으로 내구성 등이 뛰어난 교량 방수 공법에 관한 것이다.The present invention relates to a bridge waterproofing method, more specifically to the concrete surface of the bridge; After application by mixing (primer + cement mixture) a urethane-based primer and a cement which are polycondensates of polyether polyol, ethylene glycol and isocyanate; After the polyether polyol and toluene diisocyanate have been condensed and applied with a curing agent composed of polyoxypropylene glycol and methylenebischloroaniline to form a urethane waterproofing layer first; After applying the primer + cement mixture; After applying a chloroprene rubber-based synthetic rubber to form a secondary waterproofing layer; By laminating asphalt concrete layers (ascon layers); It prevents the anti-settling and disappearance of the waterproof layer, strengthens the waterproofing effect by double waterproofing, prevents the phenomena of the release (such as jungle) with excellent adhesion between the asphalt concrete layer (ascon layer) and the waterproof layer, and resists the elasticity (shrinkage, expansion, cracking, Vibration, temperature change, etc.) and high strength urethane is a bridge waterproof method with excellent durability.
교량 콘크리트 바닥면(이하 교면이라 한다)은 물리, 화학적 열화에 의해 생긴 균열로 수분 침투에 의한 철근 부식, 동절기의 동결융해 작용의 반복에 의한 열화 및 제설제(염화칼슘)의 염화물 침투에 의한 철근부식 촉진 등으로 내구성 저하 및 안전성에 크게 영향을 미친다. 따라서 종래에 도막방수(클로로프렌고무계, 고무아스팔트계, 우레탄고무계, 아크릴계고무계, 에폭시수지계, 무기질탄성계, 폴리우레아 수지계 등)와 시트방수, 침투식 교면방수, 기타(L.M.C 교면포장공법) 등으로 많은 교면방수를 하고 있으나 여러 가지 문제점으로 인해 수분, 염화물 및 기타 유해물질 등 열화요인을 완벽하게 차단하지 못하고 있는 문제점이 있었다.The concrete floor of the bridge (hereinafter referred to as bridge) is a crack caused by physical and chemical deterioration and is corroded by reinforcing steel by water infiltration, deterioration by repeated freeze-thawing in winter and reinforcing corrosion by chloride infiltration of snow remover (calcium chloride). Acceleration greatly affects durability and safety. Therefore, conventional coating film waterproofing (chloroprene rubber type, rubber asphalt type, urethane rubber type, acrylic rubber type, epoxy resin type, inorganic elastic type, polyurea resin type, etc.), sheet waterproofing, penetration type crosslinking waterproofing, and others (LMC bridge packaging method) Cross-linking waterproof, but due to various problems there was a problem that does not completely block the deterioration factors such as water, chloride and other harmful substances.
이를 구체적으로 살펴보면,Looking specifically at this,
클로로프렌고무계 도막방수는, 방수성능이 우수하고, 내열성이 우수하며, 진동 및 균열에 의한 추종성이 양호하고, 콘크리트 슬라브 부착력이 양호하며, 내화학성이 양호하고, 아스콘과의 부착성이 우수하나, 아스콘 포장시 아스콘 열에 의한 방수층 손상의 우려가 있으며, 다량의 기포가 발생되는 문제점이 있었다.Chloroprene rubber waterproof film has excellent waterproofing performance, excellent heat resistance, good tracking by vibration and crack, good adhesion of concrete slab, good chemical resistance, good adhesion to ascon, but good ascon There is a risk of damaging the waterproof layer due to ascon heat during packaging, there was a problem that a large amount of bubbles are generated.
우레탄고무계 도막방수는, 방수성능이 우수하고, 내열성이 우수하며, 아스콘 포설시 방수층 안전성(두께 보존 등)이 우수하고, 진동 및 균열에 의한 추종성이 양호하고, 콘크리트 슬라브 부착력이 양호하며, 내화학성이 양호하나, 아스콘과의 부착성이 불량하여 사용을 못하는 문제점이 있었다.Urethane rubber-based waterproof film has excellent waterproofing performance, excellent heat resistance, excellent waterproof layer safety (preservation of thickness, etc.) when laying ascon, good followability by vibration and crack, good adhesion of concrete slab, and good chemical resistance. This is good, but there was a problem that can not be used because of poor adhesion to ascon.
시트방수는, 방수성능이 우수하고, 내열성이 우수하며, 아스콘 포설시 방수층 안전성이 우수하며, 진동 및 균열에 의한 추종성이 양호하고, 내화학성이 양호하나, 시트의 겹침부분에 누수 우려가 있으며, 토치에 의한 가열접착으로 작업자의 숙련도에 따라 접착성이 불균일하고, 시공이 어려우며, 누수시 국부적인 보수가 곤란하고, 아스콘 포장시 아스콘 열에 의한 방수층 손상이 우려 되는 등의 문제점이 있었다.Sheet waterproofing has excellent waterproofing performance, excellent heat resistance, excellent waterproofing layer safety when laying ascon, good followability by vibration and crack, good chemical resistance, but there is a risk of water leakage on the overlapping part of the sheet, The heat adhesion by the torch caused problems such as uneven adhesion according to the skill of the operator, difficult construction, difficult local repair when leaking, and damage of the waterproof layer due to ascon heat during ascon packaging.
침투식 교면방수는, 시공가가 저렴하며, 시공이 용이하고, 내화학성이 양호하나, 균열에 대한 추종성이 없으며, 침투가 균일하지 않은 등의 문제점이 있었다.Penetration type crosslink waterproofing has problems such as low construction cost, easy construction, good chemical resistance, no cracking resistance, and uniform penetration.
기타공법으로 L.M.C교면포장공법은, 중차량에 의한 소성변형 및 균열발생이 저하되고, 콘크리트 포장의 경우 방수성능이 우수하고, 염화물이온 침투 차단성능이 우수하나, 초기 투자비용이 큰 문제점이 있었다.In other methods, L.M.C bridge packaging method, the plastic deformation and cracking caused by the heavy vehicle is reduced, the concrete pavement is excellent in waterproofing performance, excellent chloride ion penetration blocking performance, but the initial investment cost was a big problem.
상기와 같은 교면방수의 문제점을 해소하기 위하여, 대한민국 공개특허 제10-2002-0076214호(출원번호 제10-2002-0053434호)에서 새로운 교면 방수공법을 개시하고 있으나, 이 발명은 폴리우레아층을 방수층으로 사용하여 우레탄에 비해 재료비가 높고, 도포를 위한 특수장비(이액분사기)가 필요하며, 빠른 건조에 의해 다량의 핀홀이 발생하는 문제점이 있었다.In order to solve the problems of the waterproofing as described above, a new bridge waterproofing method is disclosed in the Republic of Korea Patent Publication No. 10-2002-0076214 (Application No. 10-2002-0053434), the present invention is a polyurea layer As a waterproof layer, the material cost is higher than urethane, and special equipment (liquid injection machine) for coating is required, and a large amount of pinholes are generated by rapid drying.
본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위한 것으로, 교량의 콘크리트 표면에; 폴리에테르폴리올과 에틸렌글리콜, 이소시아네이트의 축중합물인 우레탄계 프라이머와 시멘트를 혼합(프라이머+시멘트 혼합물)하여 도포 후; 폴리에테르폴리올과 톨루엔디이소시아네이트를 축중합한 주제와 폴리옥시프로필렌글리콜, 메틸렌비스클로로아닐린으로 구성된 경화제를 혼합하여 도포하여 우레탄방수층을 1차로 형성한 후; 상기 프라이머+시멘트 혼합물을 도포 후; 합성고무인 클로로프렌고무계를 도포하여 2차방수층을 형성한 후; 아스팔트 콘크리트층(아스콘층)을 적층하므로써; 방수층의 항침과 소실을 불식시키며 이중방수에 의한 방수효능 강화, 아스팔트 콘크리트층(아스콘층)과 방수층간의 우수한 접착력으로 이형(밀림 등)현상 방지, 탄성제로써 저항성(하지의 수축, 팽창, 균열, 진동, 온도변화 등) 우수, 고강도 우레탄으로 내구성 등이 뛰어난 교량 방수 공법을 제공하고자 하는 것을 그 목적으로 한다.The present invention is to solve the problems of the prior art as described above, the concrete surface of the bridge; After application by mixing (primer + cement mixture) a urethane-based primer and a cement which are polycondensates of polyether polyol, ethylene glycol and isocyanate; After the polyether polyol and toluene diisocyanate have been condensed and applied with a curing agent composed of polyoxypropylene glycol and methylenebischloroaniline to form a urethane waterproofing layer first; After applying the primer + cement mixture; After applying a chloroprene rubber-based synthetic rubber to form a secondary waterproofing layer; By laminating asphalt concrete layers (ascon layers); It prevents the anti-settling and disappearance of the waterproof layer, strengthens the waterproofing effect by double waterproofing, prevents the phenomena of the release (such as jungle) with excellent adhesion between the asphalt concrete layer (ascon layer) and the waterproof layer, and resists the elasticity (shrinkage, expansion, cracking, Vibration, temperature change, etc.) To provide a bridge waterproofing method with excellent strength and high strength urethane.
본 발명에 의한 교량 방수 공법은, Bridge waterproofing method according to the invention,
교량의 콘크리트 표면에 우레탄계 프라이머와 시멘트를 혼합하여 도포하는 제1 프라이머+시멘트혼합물 도포단계와; 이성분계 폴리우레탄방수재를 도포하는 제1 방수층 형성단계와; 우레탄계 프라이머와 시멘트를 혼합하여 도포하는 제2 프라 이머+시멘트혼합물 도포단계와; 합성고무인 클로로프렌고무계를 도포하는 제2 방수층 형성단계와; 아스팔트 콘크리트층(아스콘층)을 포설하는 포장단계;를 포함한다.A first primer + cement mixture coating step of mixing and applying a urethane-based primer and cement on the concrete surface of the bridge; A first waterproofing layer forming step of applying a two-component polyurethane waterproofing material; A second primer + cement mixture coating step of mixing and applying a urethane-based primer and cement; A second waterproofing layer forming step of applying a synthetic rubber chloroprene rubber system; It includes; paving step of laying an asphalt concrete layer (ascon layer).
상기 제2 방수층 형성단계 다음에, 아스팔트 접착제를 도포하는 접착제 도포단계를 갖는 것이 바람직하다.After the second waterproof layer forming step, it is preferable to have an adhesive coating step of applying an asphalt adhesive.
상기 우레탄계 프라이머는, 폴리에테르폴리올과 에틸렌글리콜, 이소시아네이트의 축중합물인 것이 바람직하다.It is preferable that the said urethane-type primer is a polycondensation product of polyether polyol, ethylene glycol, and isocyanate.
상기 우레탄계 프라이머는, 중량평균 분자량이 1000~2000인 폴리에테르폴리올 15~25중량%와, 에틸렌글리콜 5~10중량%와, 이소시아네이트 70~80중량%를 축중합하여 분자말단에 여분의 이소시아네이트가 남도록 한 습기경화형 1액형 폴리우레탄계 프라이머이며, 상기 우레탄계 프라이머와 시멘트는 중량비 1:0.8~1.2로 혼합한 것이 바람직하다.The urethane-based primer is polycondensation of 15 to 25% by weight of polyether polyol having a weight average molecular weight of 1000 to 2000, 5 to 10% by weight of ethylene glycol, and 70 to 80% by weight of isocyanate to leave extra isocyanate at the end of the molecule. It is a moisture hardening type 1-component polyurethane-type primer, and it is preferable that the said urethane-type primer and cement are mixed by weight ratio 1: 0.8-1.2.
상기 이성분계 폴리우레탄방수재는, 폴리에테르폴리올과 톨루엔디이소시아네이트를 축중합한 주제와 폴리옥시프로필렌글리콜, 메틸렌비스클로로아닐린을 포함하는 경화제를 혼합한 것이 바람직하다.It is preferable that the said two-component polyurethane waterproofing material mixed the main body which polycondensed polyether polyol and toluene diisocyanate, and the hardening | curing agent containing polyoxypropylene glycol and methylenebischloroaniline.
상기 주제는, 중량평균분자량이 1800~2200인 폴리에테르폴리올 25~30중량%와 톨루엔디이소시아네이트 70~75중량%를 축중합하여 형성되며, 상기 경화제는, 중량평균분자량이 2000~3000인 폴리옥시프로필렌글리콜 20~30중량%, 중량평균분자량이 1000~1800인 폴리옥시프로필렌글리콜 20~30중량%, 에틸렌글리콜 5~10중량%, 촉매 2~5중량%, 안료 1~2중량%이며, 메틸렌비스클로로아닐린(MOCA) 20~30중량%를 포함하는 것이 바람직하다.The main subject is formed by condensation polymerization of 25 to 30% by weight of polyether polyol having a weight average molecular weight of 1800 to 2200 and 70 to 75% by weight of toluene diisocyanate, and the curing agent is polyoxypropylene having a weight average molecular weight of 2000 to 3000. 20-30% by weight of glycol, 20-30% by weight of polyoxypropylene glycol having a weight average molecular weight of 1000-1800, 5-10% by weight of ethylene glycol, 2-5% by weight of catalyst, 1-2% by weight of pigment, and methylene bis It is preferable to contain 20-30 weight% of chloroaniline (MOCA).
이하 도면을 참조하여 상세히 설명한다. 그러나, 이들 도면은 예시적인 목적일 뿐 본 발명이 이에 한정되는 것은 아니다.Hereinafter, with reference to the drawings will be described in detail. However, these drawings are for illustrative purposes only and the present invention is not limited thereto.
본 발명에 의한 교면 방수 공법에 의해 시공된 교면 방수층의 단면은 도1과 같다.The cross section of the bridge waterproof layer constructed by the bridge waterproofing method according to the present invention is shown in FIG. 1.
도1을 살펴보면, 제일 아래에 콘크리트층인 교면(10)이 위치한다.Looking at Figure 1, the bottom of the
교면(10)의 상부에는 프라이머와 시멘트의 혼합물(20)을 도포한다.On top of the
상기 프라이머는 제품명 UCR-P로서 중량평균 분자량이 1000~2000인 폴리에테르폴리올 15~25중량%, 에틸렌글리콜 5~10중량%와 이소시아네이트 70~80중량%를 축중합하여 분자말단에 여분의 이소시아네이트가 남도록한 습기경화형 1액형 폴리우레탄계 프라이머이다.The primer is a product name UCR-P polycondensation of 15 to 25% by weight of polyether polyol having a weight average molecular weight of 1000 to 2000, 5 to 10% by weight of ethylene glycol and 70 to 80% by weight of isocyanate to leave extra isocyanate at the end of the molecule. It is a moisture hardening type 1 component polyurethane type primer.
상기 방법으로 제조된 1액형 프라이머에 시멘트(통상 포틀란트 시멘트)를 중량비 1:1로 혼합 후 로라 또는 스프레이 도포한다. 상기 프라이머:시멘트는 1:0.8~1.2의 중량비로 혼합하여도 무방하다.Cement (usually portland cement) is mixed in a weight ratio of 1: 1 to the one-part primer prepared by the above method, followed by Laura or spray coating. The primer: cement may be mixed in a weight ratio of 1: 0.8 to 1.2.
상기 프라이머와 시멘트의 혼합물(20)의 위에는 1차 방수층인 우레탄고무계(30)가 도포된다.On the
우레탄고무계(30)는 제품명 UCR-U로서 주제와 경화제로 이루어지는 이성분계 폴리우레탄 방수재이다. 상기 주제는 중량평균분자량이 1800~2200인 폴리에테르폴리올 25~30중량%와 톨루엔디이소시아네이트 70~75중량%를 축중합하여 형성된 폴리우레탄 프리폴리머로 구성되어 있다. 상기 경화제는 중량평균분자량이 2000~3000인 폴리옥시프로필렌글리콜 20~30중량%, 중량평균분자량이 1000~1800인 폴리옥시프로필렌글리콜 20~30중량%, 에틸렌글리콜 5~10중량%, 촉매 2~5중량%, 안료 1~2중량% 이며 아민화합물로는 메틸렌비스클로로아닐린(MOCA) 20~30중량%를 포함하여 구성된다.Urethane
상기 방법으로 제조된 우레탄을 일정 비율로 혼합하여 로라, 고대, 스프레이 등으로 도포한다.The urethane prepared by the above method is mixed in a predetermined ratio and applied by Laura, ancient times, spray or the like.
우레탄고무계(30)의 상부에는 도면부호 20과 동일한 프라이머와 시멘트의 혼합물(40)을 도포하여 우레탄과 클로로프렌고무의 접착을 강화한다.The upper portion of the
프라이머와 시멘트의 혼합물(40)의 상부에는 2차 방수제인 클로로프렌 고무계(50)가 도포된다.A
클로로프렌 고무계(50)는 제품명 UCR-C인 합성고무가 주원료로 제조된 것으로 아스팔트 콘크리트층(아스콘층)과의 탁월한 부착력으로 현재 국내 교량에 가장 많이 적용하고 있는 재료로써 로라, 고대 등으로 도포한다.The
클로로프렌 고무계(50)의 상부에는 아스팔트 접착제(미도시)를 도포하고, 그 위에 아스팔트 콘크리트층(아스콘층)을 포설하여 포장을 완료한다.An asphalt adhesive (not shown) is applied to the upper portion of the
클로로프렌 고무계(50)의 상부에 바로 아스팔트 콘크리트층(아스콘층)을 포설할 수도 있으나, 클로로프렌 고무계(50)는 아스팔트 접착제와의 부착력도 뛰어나 상기 클로로프렌 고무계 상부에 아스팔트 접착제를 도포 후, 아스팔트 콘크리트층(아스콘층) 적층시 더욱 뛰어난 부착력을 가질 수 있으므로, 아스팔트 접착제(미도시)를 미리 도포하고 아스팔트 콘크리트를 포설하는 것이 바람직하다.Asphalt concrete layer (ascon layer) may be installed directly on top of the
이상과 같이 본 발명에 의하면, 작업성이 뛰어나고, 재료비가 저렴한 우레탄계로 사용해 핀홀의 개수를 줄일 수 있으며, 클로로프렌고무계의 2차방수로 핀홀을 완전히 제거하며 우레탄계의 상부에 클로로프렌고무계를 도포함으로써 기포도 완전히 제거시킬 수 있는 효과가 있다.As described above, according to the present invention, it is possible to reduce the number of pinholes by using a urethane-based material having excellent workability and low material cost, completely removing the pinholes by secondary waterproofing of chloroprene-based rubber, and completely applying bubbles to the upper portion of the urethane-based foam. It can be removed.
또한, 이중방수에 의한 방수효능 강화로 수분, 염화물 및 기타 유해물질 등 열화요인을 완벽하게 차단함으로 교량의 내구성을 증대시킬 수 있는 효과가 있다.In addition, it is possible to increase the durability of the bridge by completely blocking the deterioration factors such as water, chloride and other harmful substances by strengthening the waterproof effect by the double waterproof.
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| KR100937609B1 (en) | 2009-08-25 | 2010-01-20 | 케이엘건설 주식회사 | The method of manufacturing painting polyuretane composite used in concrete floor type |
| KR101028144B1 (en) * | 2008-07-31 | 2011-04-08 | 한경희 | Constructing method for waterproofing bridge surface |
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| KR100916179B1 (en) * | 2008-11-28 | 2009-09-08 | 에이피에스엔지니어링(주) | An improved waterproofing method |
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| KR19990037809A (en) * | 1999-01-25 | 1999-05-25 | 서청 | A process for woterproofing surface of concrete bridges |
| KR20000024389A (en) * | 2000-02-11 | 2000-05-06 | 송복헌 | A complex method for water resistant of concrete structure |
| KR100360747B1 (en) | 2000-03-02 | 2002-11-13 | 중앙방수기업주식회사 | Water-proofing method using modified urethane-asphalt water-proof material |
| KR100465447B1 (en) | 2001-11-26 | 2005-01-13 | (주)아해 | Polyurethane waterproof material, polyurethane waterproof sheet using the same, and method for producing the waterproof sheet |
| KR20020076214A (en) * | 2002-09-05 | 2002-10-09 | 주식회사 대아화학 | A process for waterproofing surface of concrete bridges |
| KR20060085447A (en) * | 2005-01-24 | 2006-07-27 | 강남화성 (주) | Complex waterproof structure and method for constructing thereof |
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| KR101028144B1 (en) * | 2008-07-31 | 2011-04-08 | 한경희 | Constructing method for waterproofing bridge surface |
| KR100937609B1 (en) | 2009-08-25 | 2010-01-20 | 케이엘건설 주식회사 | The method of manufacturing painting polyuretane composite used in concrete floor type |
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| KR20070008497A (en) | 2007-01-17 |
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