KR101667530B1 - FRP Composition for Reinforcement of Concrete Structure Using Complex Material Manufactured by Drawing of Basalt Fiber, Glass Fiber, Carbon Fiber and Metal Fiber Used in High Strength Urethane Resin and Reinforcement of Concrete Structure Using Thereof - Google Patents
FRP Composition for Reinforcement of Concrete Structure Using Complex Material Manufactured by Drawing of Basalt Fiber, Glass Fiber, Carbon Fiber and Metal Fiber Used in High Strength Urethane Resin and Reinforcement of Concrete Structure Using Thereof Download PDFInfo
- Publication number
- KR101667530B1 KR101667530B1 KR1020150136178A KR20150136178A KR101667530B1 KR 101667530 B1 KR101667530 B1 KR 101667530B1 KR 1020150136178 A KR1020150136178 A KR 1020150136178A KR 20150136178 A KR20150136178 A KR 20150136178A KR 101667530 B1 KR101667530 B1 KR 101667530B1
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- South Korea
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- urethane resin
- fiber
- frp composition
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- 239000000203 mixture Substances 0.000 title claims abstract description 129
- 229920002803 thermoplastic polyurethane Polymers 0.000 title claims abstract description 63
- 229920002748 Basalt fiber Polymers 0.000 title claims abstract description 40
- 239000003365 glass fiber Substances 0.000 title claims abstract description 29
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 28
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 230000002787 reinforcement Effects 0.000 title claims description 39
- 239000004567 concrete Substances 0.000 title claims description 31
- 239000000835 fiber Substances 0.000 title abstract description 19
- 229910052751 metal Inorganic materials 0.000 title abstract description 8
- 239000002184 metal Substances 0.000 title abstract description 8
- 239000011365 complex material Substances 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 18
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 10
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 38
- 230000008439 repair process Effects 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 8
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 8
- 239000000391 magnesium silicate Substances 0.000 claims description 7
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 7
- 235000019792 magnesium silicate Nutrition 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 7
- 239000003566 sealing material Substances 0.000 claims description 7
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 6
- 229920000768 polyamine Polymers 0.000 claims description 6
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 claims description 5
- XRUKRHLZDVJJSX-UHFFFAOYSA-N 4-cyanopentanoic acid Chemical compound N#CC(C)CCC(O)=O XRUKRHLZDVJJSX-UHFFFAOYSA-N 0.000 claims description 5
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 229940044654 phenolsulfonic acid Drugs 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- VEVAMZBETDIUGK-UHFFFAOYSA-N tert-butylcyclohexane;carboxyoxy hydrogen carbonate Chemical compound OC(=O)OOC(O)=O.CC(C)(C)C1CCCCC1.CC(C)(C)C1CCCCC1 VEVAMZBETDIUGK-UHFFFAOYSA-N 0.000 claims description 5
- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-UHFFFAOYSA-N 0.000 claims description 4
- 229920006243 acrylic copolymer Polymers 0.000 claims description 4
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 claims description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims 2
- 239000002131 composite material Substances 0.000 abstract description 10
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000000047 product Substances 0.000 description 23
- 239000004760 aramid Substances 0.000 description 17
- 229920003235 aromatic polyamide Polymers 0.000 description 13
- 238000010276 construction Methods 0.000 description 10
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 8
- 239000004952 Polyamide Substances 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 229920002647 polyamide Polymers 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- ZADYMNAVLSWLEQ-UHFFFAOYSA-N magnesium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Si+4] ZADYMNAVLSWLEQ-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 4
- 229960003493 octyltriethoxysilane Drugs 0.000 description 4
- 239000012779 reinforcing material Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- KJVBXWVJBJIKCU-UHFFFAOYSA-N [hydroxy(2-hydroxyethoxy)phosphoryl] prop-2-enoate Chemical compound OCCOP(O)(=O)OC(=O)C=C KJVBXWVJBJIKCU-UHFFFAOYSA-N 0.000 description 2
- 239000003831 antifriction material Substances 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000011094 fiberboard Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920001083 polybutene Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- POLZHVHESHDZRD-UHFFFAOYSA-N 2-hydroxyethyl 2-methylprop-2-enoate;phosphoric acid Chemical compound OP(O)(O)=O.CC(=C)C(=O)OCCO POLZHVHESHDZRD-UHFFFAOYSA-N 0.000 description 1
- CWPKTBMRVATCBL-UHFFFAOYSA-N 3-[1-[1-[(2-methylphenyl)methyl]piperidin-4-yl]piperidin-4-yl]-1h-benzimidazol-2-one Chemical compound CC1=CC=CC=C1CN1CCC(N2CCC(CC2)N2C(NC3=CC=CC=C32)=O)CC1 CWPKTBMRVATCBL-UHFFFAOYSA-N 0.000 description 1
- WHNPOQXWAMXPTA-UHFFFAOYSA-N 3-methylbut-2-enamide Chemical compound CC(C)=CC(N)=O WHNPOQXWAMXPTA-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010220 ion permeability Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/282—Polyurethanes; Polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/386—Carbon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0016—Granular materials, e.g. microballoons
- C04B20/002—Hollow or porous granular materials
- C04B20/004—Hollow or porous granular materials inorganic
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/161—Macromolecular compounds comprising sulfonate or sulfate groups
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nanotechnology (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
본 발명은 우레탄수지 100중량부를 기준으로, 수산화알루미늄, 탄산칼슘 또는 이들의 혼합물로 이루어진 충진제 5 내지 50중량부; 현무암 섬유, 아라미드 섬유, 유리섬유, 탄소섬유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 인발성형한 성형물 70 내지 90중량부; 경화제 5 내지 20중량부; 부착증진제 1 내지 10중량부; 및 저수축제 3 내지 15중량부를 포함하는 보수보강용 FRP 조성물에 관한 것이다.
본 발명에 따른 FRP 조성물은 고강도 우레탄 수지를 현무암섬유, 유리섬유, 탄소섬유, 메탈섬유 등을 인발 가공한 복합소재에 함침시킬 수 있도록 하여 기계적 성능, 내구성, 내충격성 및 강도 등을 향상시킨 FRP 조성물을 제공함으로써, 성형성이 좋고, 생산공정이 간편하여 생산비용이 저렴하다.The present invention relates to a rubber composition comprising 5 to 50 parts by weight of a filler comprising aluminum hydroxide, calcium carbonate or a mixture thereof, based on 100 parts by weight of a urethane resin; 70 to 90 parts by weight of a molded product obtained by drawing basalt fiber, aramid fiber, glass fiber, carbon fiber or a mixture of at least one selected from the foregoing; 5 to 20 parts by weight of a curing agent; 1 to 10 parts by weight of an adhesion promoter; And 3 to 15 parts by weight of a water-reducing finishing agent.
The FRP composition according to the present invention can be impregnated into a composite material obtained by drawing a high-strength urethane resin into basalt fiber, glass fiber, carbon fiber, metal fiber, etc., thereby improving the mechanical performance, durability, impact resistance and strength The moldability is good, the production process is simple, and the production cost is low.
Description
본 발명은 고강도 우레탄 수지를 이용하여 현무암섬유, 유리섬유, 탄소섬유, 메탈섬유 등을 인발 가공한 복합소재를 이용한 콘크리트 구조물의 보수보강용 FRP 조성물에 관한 것으로서, 더 상세하게는 콘크리트 구조물의 일면에 일정 거리 이격되게 부착되어 콘크리트 구조물의 강도와 구조내력을 증대시키기 위해 고강도 우레탄 수지를 이용하여 현무암섬유, 유리섬유, 탄소섬유, 메탈섬유 등을 인발 가공한 복합소재를 이용한 콘크리트 구조물의 보수보강용 FRP 조성물 및 이를 이용한 보수 보강공법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a FRP composition for repairing and reinforcing a concrete structure using a composite material obtained by drawing a basalt fiber, glass fiber, carbon fiber, metal fiber or the like using a high strength urethane resin, FRP for repair and reinforcement of concrete structures using composite material obtained by drawing basalt fiber, glass fiber, carbon fiber, and metal fiber using high strength urethane resin to increase the strength and structural strength of concrete structure attached at a distance. And a method of repairing and reinforcing the same.
일반적으로 구조물은 시간이 지남에 따라 설계 및 시공 상의 하자, 사용 중의 구조변경, 환경변화에 따른 노후화 및 자연재해, 화재 등 각종 원인에 의해 내구성 및 내하력이 저하되며, 이러한 원인에 의해 구조적으로 영향을 받게 된 구조물들은 붕괴로까지 이어질 수 있어 인명피해 등 대형 참사뿐만 아니라, 사회 기반인 주요시설 및 교통망이 장기간 마비되고 복구를 위해서는 막대한 공사비가 소요되어 사회적으로 큰 영향을 미친다.Generally, as time goes by, the durability and the load-bearing capacity are reduced due to various causes such as design and construction defects, structural changes during use, aging due to environmental changes, natural disasters and fire, Structures received can lead to disintegration. Not only large-scale disasters such as human casualties, but also major facilities and transportation networks, which are social infrastructure, suffer long-term paralysis and require massive construction costs.
구조적인 손상을 입은 구조물들은 안전성 확보를 위해 전면 또는 부분적인 보강조치가 반드시 필요하며, 이러한 문제점을 해결하고자 여러 가지 보수, 보강 공법이 개발되고 있고, 이러한 주요 보강공법으로는 강판보강공법과 섬유시트보강공법 그리고 섬유판 보강공법으로 나눌 수 있고, 시공방식에 따라 현장 함침보강공법, 압착보강공법, 접착보강공법, 매립보강공법으로 나눌 수 있다.In order to secure the safety of the structures damaged by structural damage, a total or partial reinforcement action is indispensable. Various repair and reinforcement methods have been developed to solve these problems. The main reinforcement methods include a steel sheet reinforcement method, Reinforcement method, and fiberboard reinforcement method. Depending on the construction method, it can be divided into field impregnation reinforcement method, compression reinforcement method, adhesive reinforcement method, and landfill reinforcement method.
여기서, 상기한 강판보강공법은 검증된 보강효과와 시공성 때문에 실제 구조물에 폭넓게 적용되어 왔지만, 강판의 무거운 중량과 부식에 취약하여 시공성과 유지 관리적 측면에서 문제점이 있다.Here, the steel plate reinforcing method has been widely applied to actual structures due to the proven reinforcing effect and workability. However, the steel plate reinforcing method is problematic in terms of workability and maintenance because it is vulnerable to heavy weight and corrosion of the steel plate.
특히, 강판의 과도한 자중으로 인해 시공시에는 중장비가 필요하고. 용접작업 등으로 인한 화재의 위험도 상존하며 부식을 막기 위해 별도의 방청도장이 필요하다.Especially, due to the excessive weight of the steel sheet, heavy equipment is required at the time of construction. There is a risk of fire due to welding work and other anti-corrosive coating is needed to prevent corrosion.
또한, 상기한 강판보강공법은 통기성 결여로 인한 밀폐현상으로 대상 구조물과 보강재의 계면에서 발생되는 부착력의 약화 등 내구성에 문제점이 있다.In addition, the steel plate reinforcing method described above has a problem in durability, such as weakening of the adhesion force generated at the interface between the target structure and the reinforcing material, due to the sealing phenomenon due to the air permeability loss.
그리고 현장함침 보강공법은 주로 카본섬유, 유리섬유, 아라미드섬유 등의 섬유강화복합소재를 이용한 보강공법으로 운송비가 저렴하고, 취급이 용이하며, 빠르고 간편한 시공성, 우수한 내구성 때문에 그 활용빈도가 지속적으로 증가되어 왔다.And the field impregnation strengthening method is a reinforcement method using fiber reinforced composite materials such as carbon fiber, glass fiber and aramid fiber in a low cost and easy to handle, fast and easy construction workability and excellent durability. Has come.
그러나 상기한 카본섬유는 제품의 가격이 매우 고가이기 때문에 적용이 용이하지 않고, 전도체로서 고압전류가 흐르는 곳에서는 사용이 적합하지 않다는 문제점이 있다.However, since the cost of the carbon fiber is very high, it is not easy to apply and the carbon fiber is not suitable for use in a place where a high voltage current flows as a conductor.
또한, 상기 유리섬유는 카본섬유에 비해 가격이 상대적으로 저렴한 특성이 있고, 저탄성재료로서의 이점이 있으나, 유리섬유의 제작, 재단 및 시공시 유리분진에 의하여 시공성이 문제가 있으며, 내화성이 떨어질 뿐만 아니라, 폐기시 환경에 영향을 미치는 것으로 알려져 있고, 최근에는 발암가능성 물질로 분류되어 그 사용이 제한되고 있다.In addition, the glass fiber has a relatively low price as compared with the carbon fiber and has an advantage as a low-elasticity material. However, there is a problem in workability due to glass dust during the production, cutting and construction of glass fiber, However, it has been known to affect the environment at the time of disposal, and in recent years it has been classified as a potential carcinogen and its use has been limited.
그리고 상기 아라미드섬유의 경우에는 기계적, 역학적 성능이 유리섬유나 카본섬유에 비하여 현저히 떨어지므로 최근에는 그 사용이 감소하고 있는 실정이다.In the case of the aramid fiber, the mechanical and mechanical performance of the aramid fiber is considerably lower than that of the glass fiber or carbon fiber.
또한, 상기한 현장함침보강공법은 보강성능에 비해 시공이 힘들고, 작업자의 숙련도, 노하우에 따라 품질이 많이 좌우된다.In addition, the above-mentioned site impregnation reinforcing method is difficult to construct as compared with the reinforcing performance, and quality is greatly influenced by skill and know-how of the worker.
이 또한 전면시공으로 인한 통기성의 결여, 유지관리의 어려움 등의 문제점이 있다.This also causes problems such as lack of ventilation due to the front construction and maintenance difficulty.
한편, 섬유판 보강공법은 재료적 물성은 우수하나 보강대상 구조물과의 부착을 에폭시 접착제에만 의존할 수밖에 없는 메커니즘으로 단부박리 등 부착성능의 한계가 있고, 이러한 부착성능의 한계를 해결하기 위하여 별도의 보강철물이 필요하며, 이 공법 또한 전면시공으로 인한 통기성의 결여, 유지관리의 어려움 등의 문제점이 있다.On the other hand, the fiberboard reinforcement method has a superior material property, but it has a limitation in the adhesion performance such as peeling of the end due to a mechanism that depends only on the epoxy adhesive to adhere to the object to be reinforced. This method also has problems such as lack of ventilation due to the front construction and maintenance difficulty.
이러한 문제점을 극복하기 위하여, 대한민국 특허 제10-1204368호에는 현무암 섬유를 이용한 철근콘크리트구조물 보수보강용 패널이 개시되어 있다.In order to overcome such a problem, Korean Patent No. 10-1204368 discloses a panel for reinforcing and reinforcing concrete structures using basalt fiber.
한편, 상기 콘크리트 구조물의 보수보강하기 위해 판, 리바, 패널 등의 다양한 물건을 사용할 수 있는바, 이러한 물건으로 제조하기 위해 충분한 내구성을 갖는 조성물을 개발하는 것이 필요하다. On the other hand, in order to repair and reinforce the concrete structure, it is necessary to develop a composition having sufficient durability to manufacture such a product, since various materials such as plates, ribs, and panels can be used.
본 발명은 상기와 같은 문제점을 해결하기 위해 창출한 것으로서, 고강도 우레탄 수지를 현무암섬유, 유리섬유, 탄소섬유, 메탈섬유 등을 인발 가공한 복합소재에 함침시킬 수 있도록 하여 기계적 성능, 내구성, 내충격성 및 강도 등을 향상시킨 FRP 조성물 및 이를 이용한 보수보강용 제품, 예를 들면 판, 리바 및/또는 패널을 제공하는데 그 목적이 있다.The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a high strength urethane resin which can be impregnated into a composite material obtained by drawing basalt fiber, glass fiber, carbon fiber or metal fiber, And strength and the like, and a product for repair and reinforcement using the FRP composition, for example, a plate, a rebar and / or a panel.
또한, 본 발명은 상기 FRP 조성물을 이용한 제품을 사용하여 콘크리트 구조물 보수보강 공법을 제공하는데 그 목적이 있다.It is another object of the present invention to provide a method of reinforcing and reinforcing concrete structures by using a product using the FRP composition.
본 발명은
우레탄수지 100중량부를 기준으로,
수산화알루미늄, 탄산칼슘 또는 이들의 혼합물로 이루어진 충진제 5 내지 50중량부;
현무암 섬유, 아라미드 섬유, 유리섬유, 탄소섬유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 인발성형한 성형물 70 내지 90중량부;
파라 톨루엔 설포닉산, 페놀술폰산, t-부틸페록식 벤조에이트, 무수프탈산, 방향족 폴리아민, 비스-(4-t -부틸사이클로헥산)페록시디카보네이트, 폴리메캅탄 또는 이들의 혼합물인 경화제 5 내지 20중량부;
부착증진제 1 내지 10중량부; 및
저수축제 3 내지 15중량부를 포함하는 보수보강용 FRP 조성물에,
테트라에틸렌펜타민을 우레탄수지 100중량부를 기준으로 2 내지 8중량부로 더 포함하고,
변형방지제를 우레탄수지 100중량부를 기준으로 5 내지 30중량부로 더 포함하며,
마그네슘 실리케이트를 우레탄수지 100중량부를 기준으로 1 내지 5중량부로 더 포함하고,
아크릴 모노머, 4-시아노바릭 산(4-cyanovaleric acid), 및 글리시달메타아크릴레이트(GMA)의 중합에 의해 형성된 아크릴코폴리머를 우레탄수지 100중량부를 기준으로 10 내지 50중량부로 더 포함하며,
경화 촉진제를 우레탄수지 100중량부를 기준으로 0.5 내지 5중량부로 더 포함하고,
폴리비닐알콜을 우레탄수지 100중량부를 기준으로 2 내지 10중량부로 더 포함하며,The present invention
Based on 100 parts by weight of urethane resin,
5 to 50 parts by weight of a filler consisting of aluminum hydroxide, calcium carbonate or a mixture thereof;
70 to 90 parts by weight of a molded product obtained by drawing basalt fiber, aramid fiber, glass fiber, carbon fiber or a mixture of at least one selected from the foregoing;
5 to 20 weight percent of a curing agent which is a paratoluene sulfonic acid, a phenol sulfonic acid, a t-butyl peroxy benzoate, a phthalic anhydride, an aromatic polyamine, a bis- (4-t-butylcyclohexane) peroxydicarbonate, a polymercaptan, part;
1 to 10 parts by weight of an adhesion promoter; And
Reinforced FRP composition comprising 3 to 15 parts by weight of a water-reducing festival,
Further comprising 2 to 8 parts by weight of tetraethylene pentamine based on 100 parts by weight of the urethane resin,
Further comprising 5 to 30 parts by weight of a deformation preventing agent based on 100 parts by weight of the urethane resin,
Further comprising 1 to 5 parts by weight of magnesium silicate based on 100 parts by weight of the urethane resin,
Further comprising 10 to 50 parts by weight of an acrylic copolymer formed by polymerization of an acrylic monomer, 4-cyanovaleric acid, and glycidyl methacrylate (GMA) based on 100 parts by weight of a urethane resin,
Further comprising 0.5 to 5 parts by weight of a curing accelerator based on 100 parts by weight of the urethane resin,
Further comprising 2 to 10 parts by weight of polyvinyl alcohol based on 100 parts by weight of the urethane resin,
아미노메틸폴리디메틸실록산을 우레탄수지 100중량부를 기준으로 3 내지 10중량부로 더 포함하는 보수보강용 FRP 조성물을 제공한다.
Wherein the aminomethyl polydimethyl siloxane further comprises 3 to 10 parts by weight based on 100 parts by weight of the urethane resin.
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또한, 본 발명은
현무암 섬유, 아라미드 섬유, 유리섬유, 탄소섬유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 인발하여 성형물을 제조하는 인발성형단계;
우레탄수지 100중량부를 기준으로, 수산화알루미늄, 탄산칼슘 또는 이들의 혼합물로 이루어진 충진제 5 내지 50중량부, 파라 톨루엔 설포닉산, 페놀술폰산, t-부틸페록식 벤조에이트, 무수프탈산, 방향족 폴리아민, 비스-(4-t -부틸사이클로헥산)페록시디카보네이트, 폴리메캅탄 또는 이들의 혼합물인 경화제 5 내지 20중량부, 부착증진제 1 내지 10중량부, 및 저수축제 3 내지 15중량부로 이루어진 혼합물에, 테트라에틸렌펜타민을 우레탄수지 100중량부를 기준으로 2 내지 8중량부로 더 포함하고, 변형방지제를 우레탄수지 100중량부를 기준으로 5 내지 30중량부로 더 포함하며, 마그네슘 실리케이트를 우레탄수지 100중량부를 기준으로 1 내지 5중량부로 더 포함하고, 아크릴 모노머, 4-시아노바릭 산(4-cyanovaleric acid), 및 글리시달메타아크릴레이트(GMA)의 중합에 의해 형성된 아크릴코폴리머를 우레탄수지 100중량부를 기준으로 10 내지 50중량부로 더 포함하며, 경화 촉진제를 우레탄수지 100중량부를 기준으로 0.5 내지 5중량부로 더 포함하고, 폴리비닐알콜을 우레탄수지 100중량부를 기준으로 2 내지 10중량부로 더 포함하며, 아미노메틸폴리디메틸실록산을 우레탄수지 100중량부를 기준으로 3 내지 10중량부로 더 포함시킨 혼합물에 상기 인발성형단계에서 제조된 인발성형물 70 내지 90중량부를 함침시켜 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 제조하는 FRP 조성물 제조단계;
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 시공할 콘크리트 구조물의 바탕면을 정리하는 단계;
상기 콘크리트 구조물의 바탕면에 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 부착 고정하는 단계;
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물의 표면과 콘크리트 구조물의 바탕면 사이를 실링재로 밀봉 처리하는 단계; 및In addition,
A drawing-forming step of drawing a basalt fiber, an aramid fiber, a glass fiber, a carbon fiber or a mixture of at least one selected from the foregoing to produce a molded product;
5 to 50 parts by weight of a filler consisting of aluminum hydroxide, calcium carbonate or a mixture thereof, based on 100 parts by weight of urethane resin, paratoluenesulfonic acid, phenolsulfonic acid, t-butylperoxyl benzoate, phthalic anhydride, aromatic polyamine, bis- (4-t-butylcyclohexane) peroxydicarbonate, polymercaptan or a mixture thereof, from 1 to 10 parts by weight of an adhesion promoter, and from 3 to 15 parts by weight of a water-reducing agent, tetraethylene Pentamine in an amount of 2 to 8 parts by weight based on 100 parts by weight of the urethane resin, and further comprising 5 to 30 parts by weight of a deformation preventing agent based on 100 parts by weight of the urethane resin, wherein the magnesium silicate is contained in an amount of 1 to 100 parts by weight, And further comprising 5 parts by weight of an acrylic monomer, 4-cyanovaleric acid, and glycidyl methacrylate (GMA) And 10 to 50 parts by weight based on 100 parts by weight of the urethane resin, wherein the curing accelerator is further added in an amount of 0.5 to 5 parts by weight based on 100 parts by weight of the urethane resin, 100 parts by weight of the polyvinyl alcohol is mixed with 100 parts by weight of the urethane resin, By weight based on 100 parts by weight of urethane resin, and 70 to 90 parts by weight of the extrudate produced in the drawing-forming step is impregnated with the mixture, A FRP composition manufacturing step of producing a FRP composition for repair and reinforcement in the form of a drawn-out molding;
Arranging the base surface of the concrete structure to be installed with the FRP composition for repair and reinforcement made in the form of the above-mentioned pull-out molding;
Attaching and fixing a FRP composition for repair and reinforcement, which is in the form of a pultrusion molding, to the base surface of the concrete structure;
Sealing the surface of the FRP composition for maintenance and reinforcement made of the above-mentioned draw-out material and the base surface of the concrete structure with a sealing material; And
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물에 주입관과 확인관을 설치하고, 상기 주입관을 통해 에폭시수지를 충전하면서 확인관을 통해 에폭시수지의 충전을 확인하는 단계를 포함하는 콘크리트 구조물 보수 보강공법을 제공한다.Reinforcing FRP composition in the form of a pull-out mold, and confirming the filling of the epoxy resin through the check pipe while filling the epoxy resin through the injection pipe, and repairing and reinforcing the concrete structure Provide the construction method.
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본 발명에 따른 본 발명은 상기와 같은 문제점을 해결하기 위해 창출한 것으로서, 고강도 우레탄 수지를 현무암섬유, 유리섬유, 탄소섬유, 메탈섬유 등을 인발 가공한 복합소재에 함침시킬 수 있도록 하여 기계적 성능, 내구성, 내충격성 및 강도 등을 향상시킨 FRP 조성물을 제공함으로써, 성형성이 좋고, 생산공정이 간편하여 생산비용이 저렴하다.The present invention according to the present invention has been made to solve the above problems, and it is an object of the present invention to provide a high strength urethane resin which can be impregnated into a composite material obtained by drawing basalt fiber, glass fiber, carbon fiber, By providing the FRP composition improved in durability, impact resistance and strength, the moldability is good, the production process is simple, and the production cost is low.
이하, 본 발명을 구체적으로 설명한다.Hereinafter, the present invention will be described in detail.
한 가지 관점에서, 본 발명은 우레탄수지 100중량부를 기준으로, 수산화알루미늄, 탄산칼슘 또는 이들의 혼합물로 이루어진 충진제 5 내지 50중량부; 현무암 섬유, 아라미드 섬유, 유리섬유, 탄소섬유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 인발성형한 성형물 70 내지 90중량부; 경화제 5 내지 20중량부; 부착증진제 1 내지 10중량부; 및 저수축제 3 내지 15중량부를 포함하는 보수보강용 FRP 조성물을 제공한다.In one aspect, the present invention relates to a curable composition comprising 5 to 50 parts by weight of a filler comprising aluminum hydroxide, calcium carbonate or a mixture thereof, based on 100 parts by weight of a urethane resin; 70 to 90 parts by weight of a molded product obtained by drawing basalt fiber, aramid fiber, glass fiber, carbon fiber or a mixture of at least one selected from the foregoing; 5 to 20 parts by weight of a curing agent; 1 to 10 parts by weight of an adhesion promoter; And 3 to 15 parts by weight of a water-reducing finishing agent.
다른 관점에서, 본 발명은 현무암 섬유, 아라미드 섬유, 유리섬유, 탄소섬유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 인발하여 성형물을 제조하는 인발성형단계; 우레탄수지 100중량부를 기준으로, 수산화알루미늄, 탄산칼슘 또는 이들의 혼합물로 이루어진 충진제 5 내지 50중량부, 경화제 5 내지 20중량부, 부착증진제 1 내지 10중량부, 및 저수축제 3 내지 15중량부로 이루어진 혼합물에 상기 인발성형단계에서 제조된 인발성형물 70 내지 90중량부를 함침시켜 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 제조하는 FRP 조성물 제조단계; 상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 시공할 콘크리트 구조물의 바탕면을 정리하는 단계; 상기 콘크리트 구조물의 바탕면에 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 부착 고정하는 단계; 상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물의 표면과 콘크리트 구조물의 바탕면 사이를 실링재로 밀봉 처리하는 단계; 및 상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물에 주입관과 확인관을 설치하고, 상기 주입관을 통해 에폭시수지를 충전하면서 확인관을 통해 에폭시수지의 충전을 확인하는 단계를 포함하는 콘크리트 구조물 보수 보강공법을 제공한다.
In another aspect, the present invention provides a method for producing a molded article, comprising: a drawing-forming step of drawing a basalt fiber, an aramid fiber, a glass fiber, a carbon fiber or a mixture of at least one selected from the above; 5 to 50 parts by weight of a filler consisting of aluminum hydroxide, calcium carbonate or a mixture thereof, 5 to 20 parts by weight of a curing agent, 1 to 10 parts by weight of an adhesion promoter and 3 to 15 parts by weight of a water-reducing agent based on 100 parts by weight of a urethane resin And 70 to 90 parts by weight of the extrudate produced in the drawing and forming step is impregnated into the mixture to prepare a FRP composition for repair and reinforcement in the form of a pellet; Arranging the base surface of the concrete structure to be installed with the FRP composition for repair and reinforcement made in the form of the above-mentioned pull-out molding; Attaching and fixing a FRP composition for repair and reinforcement, which is in the form of a pultrusion molding, to the base surface of the concrete structure; Sealing the surface of the FRP composition for maintenance and reinforcement made of the above-mentioned draw-out material and the base surface of the concrete structure with a sealing material; And a step of installing an injection pipe and a check pipe in the FRP composition for repair and reinforcement made in the form of the above-mentioned draw-out mold, and confirming the filling of the epoxy resin through the check pipe while filling the epoxy resin through the injection pipe. Provide reinforcement method.
본 발명에 따른 FRP 조성물, 특정적으로 콘크리트 구조물의 보수보강용 FRP조성물은 현무암섬유, 유리섬유, 탄소섬유, 메탈섬유 등을 인발 가공한 복합소재를 고강도 우레탄 수지 혼합물로 함침하여 보수 및/또는 보강이 필요한 콘크리트, 예를 들면 콘크리트 구조물 등에 적용함으로써, 기계적 성능 및/또는 내충격성 등을 향상시킬 수 있는 것이라면 특별히 한정되지 않는다.The FRP composition according to the present invention, specifically the FRP composition for repairing and reinforcing a concrete structure, is obtained by impregnating a composite material obtained by drawing basalt fiber, glass fiber, carbon fiber or metal fiber with a high strength urethane resin mixture to repair and / Is not particularly limited as long as it can improve mechanical performance and / or impact resistance by applying it to concrete, for example, a concrete structure.
본 발명에 따른 FRP 조성물은 현무암섬유, 유리섬유, 탄소섬유, 메탈섬유 등을 인발 가공한 복합소재로 성형물, 예들 들면 판, 리바 및/또는 패널 등의 성형물을 제조한 후 고강도 우레탄 수지를 포함하는 혼합물이 함침되도록 구성된다.The FRP composition according to the present invention is a composite material obtained by drawing basalt fiber, glass fiber, carbon fiber, metal fiber or the like, and then molding a molded article such as a plate, a rebar and / So that the mixture is impregnated.
본 발명에 따른 우레탄 수지는 당업계에서 통상적으로 사용되는 우레탄 수지라면 특별히 한정되지 않지만, 바람직하게는 복합소재 성형물, 특정적으로 현무암섬유, 유리섬유, 탄소섬유, 메탈섬유 등을 인발 가공한 복합소재 성형물에 함침되기 용이하도록 용액 형태로 이루어진 것이 좋다. The urethane resin according to the present invention is not particularly limited as long as it is a urethane resin that is commonly used in the art, but it is preferably a composite material, particularly a composite material obtained by drawing a basalt fiber, glass fiber, carbon fiber, And may be formed in a solution form so as to be easily impregnated in a molded product.
이때, 상기 FRP 조성물, 특정적으로 콘크리트 구조물의 보수보강용 FRP 조성물을 구성하는 우레탄 수지 외 나머지 성분들의 함량은 우레탄 수지 100중량부를 기준으로 한다.At this time, the contents of the FRP composition, specifically the urethane resin and other components constituting the FRP composition for repairing and reinforcing concrete structures, are based on 100 parts by weight of the urethane resin.
본 발명에 따른 충진제는 치수 안정성 및 내마모성을 향상시키기 위한 것으로서, 이러한 목적을 갖는 충진제라면 어떠한 것을 사용하여도 무방하며, 그 사용량은 우레탄 수지 100중량부를 기준으로 5 내지 50중량부인 것이 좋다.The filler according to the present invention is intended to improve the dimensional stability and abrasion resistance, and any filler having such a purpose may be used, and the filler is preferably used in an amount of 5 to 50 parts by weight based on 100 parts by weight of the urethane resin.
바람직한 충진제로는 수산화알루미늄, 탄산칼슘 또는 이들의 혼합물을 추천한다.Preferred fillers are aluminum hydroxide, calcium carbonate or mixtures thereof.
본 발명에 따른 성형물은 콘크리트 구조물을 보수보강하기 위한 물건의 형태, 특정적으로 제품의 형태를 지칭하는 것으로서, 그 형태에 따라 판, 리바 및/또는 패널 형태를 포함할 수 있다.The shaped article according to the present invention refers to the shape of a product for repairing and reinforcing a concrete structure, specifically, the shape of a product, and may include a plate, a rebar, and / or a panel shape depending on its shape.
이때, 상기 성형물은 성형물을 제외한 나머지 FRP 조성물을 구성하는 성분들이 함침되어 최종적인 제품으로 제작된다.At this time, the molded product is impregnated with the components constituting the remaining FRP composition except for the molded product, and is manufactured as a final product.
바람직한 성형물은 현무암 섬유, 아라미드 섬유, 유리섬유, 탄소섬유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 인발성형한 것을 포함하고, 그 사용량은 우레탄 수지 100중량부를 기준으로 70 내지 90중량부인 것을 추천한다.A preferable molded product includes basalt fiber, aramid fiber, glass fiber, carbon fiber, or a mixture of at least one selected from the foregoing, and the amount of use is preferably 70 to 90 parts by weight based on 100 parts by weight of the urethane resin.
여기서, 상기 현무암섬유는 유리섬유와 화학적 성질이 서로 유사하다. 즉, 유리와 현무암 모두 실리카를 주성분으로 하는 비결정성 소재이다.Here, the basalt fiber has chemical properties similar to those of glass fiber. In other words, both glass and basalt are amorphous materials based on silica.
통상 유리섬유는 활용이 다양화되면서 전세계 연평균 생산량도 약 300만톤에 달하고 있다.As the use of glass fiber is diversified, the annual average annual production amount reaches about 3 million tons.
또한, 상기 유리섬유 또한 다양한 종류가 있으나, 물량을 기준으로 보면 유리섬유(E glass)가 주요 제품이다.In addition, there are various kinds of the above-mentioned glass fiber, but glass fiber (E glass) is a main product when it is based on the amount of water.
일반 유리섬유와 현무암 섬유를 비교해 보면, 유리섬유는 다양한 성분으로 되어 있고, 밀도가 2.6~2.7g/ 정도로 낮지만, 현무암섬유는 고강도, 고내열성이며, 복합재료로 사용시 그 기능이 우수하다. Compared to ordinary glass fibers and basalt fibers, glass fibers are composed of various components and have a density as low as 2.6 to 2.7 g / cm. However, basalt fibers have high strength and high heat resistance, and their functions are excellent when used as a composite material.
특히, 상기 현무암섬유는 강도 보강시 요구되는 경제성(낮은 비용)으로 인해, 다양한 용도로 사용이 가능하다.In particular, the basalt fiber can be used for various purposes because of economical efficiency (low cost) required for reinforcing the strength.
이에, 본 발명에 따른 현무암섬유와 통상의 유리섬유의 물성을 비교한 결과를 표 1로 나타냈다.
Table 1 shows the results of comparing the physical properties of the basalt fiber and the conventional glass fiber according to the present invention.
또한, 상기 카본섬유는 고강도로서 현무암 섬유에 비하여 큰 우위에 있다. 그러나 탄성률이 1.5%로 현무암 섬유 4.2%에 비해 매우 낮아 섬유가공 측면에서 어려운 부분도 있다.In addition, the carbon fibers are high in strength and superior in strength to basalt fibers. However, the modulus of elasticity is 1.5%, which is much lower than that of basalt fiber (4.2%).
동 섬유들의 강도특성은 사용분야의 선택에서 매우 중요한 요소이다. 원소 1데니어당 강도를 본다면 카본섬유는 170cN/tex로 100cN/tex의 현무암 섬유에 비해 매우 높으나, 단위면적당 강도로 본다면 3.0GPa로 2.7GPa에 비해 큰 차이를 보이지 않는다.The strength properties of the fibers are very important in the choice of application. The strength per 1 denier of carbon fiber is 170 cN / tex, which is much higher than that of 100 cN / tex of basalt fiber. However, the strength per unit area is 3.0 GPa, which is not much different from 2.7 GPa.
결과적으로 현무암 섬유는 적당한 강도(단위면적당 강도기준), 높은 내산화성, 전기 절연성, 용이한 가공성 및 원료 조달, 매우 저렴한 가격 등의 특징이 있다.As a result, basalt fibers are characterized by moderate strength (strength per unit area), high oxidation resistance, electrical insulation, easy processability and raw material procurement, and very low prices.
이러한 면에서 카본섬유의 우위성은 저밀도 및 고강도에 국한된다고 볼 수 있으며, 고가이며 공급이 부족한 카본섬유에 비해 현무암섬유가 갖는 장점이 있다.In this respect, the advantage of carbon fiber is limited to low density and high strength, and it is advantageous to have basalt fiber in comparison with carbon fiber which is expensive and in short supply.
한편, 본 발명에 따른 아라마이드 섬유는 실의 형태로 뽑아 직물을 만드는 데 사용하는 필라멘트 형태, 분말형태로 형성하여 제품을 만드는 데 사용하는 펄프형태, 실의 두께를 자유롭게 조정함은 물론 다른 성질의 실과 혼방하여 사용하기 위해 약한 분쇄가공을 한 스테플 형태가 있는데, 본 발명에서는 필요에 따라 이중 선택된 어느 하나의 형태로 적용될 수 있다.Meanwhile, the aramid fiber according to the present invention is formed into a filament form used for making a fabric in a yarn form, a pulp form used for making a product in a powder form, a yarn thickness can be freely adjusted, There is a staple shape which is subjected to a weak grinding process for use in blending with a yarn. In the present invention, it may be applied to any one of the double-selected shapes as required.
한편, 상기 아라미드 섬유는 단일 형상을 갖는 것이며, 그 길이는 1 내지 100mm, 바람직하게는 3 내지 40mm이며, 단면의 직경 또는 두께는 1 내지 50, 바람직하게는 10 내지 40이다. 상기 아라미드의 길이 및 직경 또는 두께는 목적하는 FRP 조성물의 품질, 내구 성능과 인장강도, 휨강도 및 인성 등에 따라 최적 범위로 조절할 수 있으며, 단일 형상을 유지하는 단일 길이 및 단일 직경으로 사용하는 것이 바람직하다.On the other hand, the aramid fiber has a single shape and its length is 1 to 100 mm, preferably 3 to 40 mm, and the diameter or thickness of the cross section is 1 to 50, preferably 10 to 40. The length and diameter or thickness of the aramid may be adjusted to the optimum range depending on the quality, durability, tensile strength, flexural strength and toughness of the desired FRP composition, and it is preferable to use a single length and a single diameter for maintaining a single shape .
상기 아라미드에서 단일 형상이라 함은 길이 또는 직경 중 어느 하나라도 상이한 섬유가 혼합되지 않은 것을 의미하며, FRP 조성물 내의 분산성 측면에서 단일 길이 및 단일 직경의 단일 형상을 갖는 것이 바람직하다.The single shape in the aramid means that fibers having different lengths or diameters are not mixed, and it is preferable that the aramid has a single shape having a single length and a single diameter in terms of dispersibility in the FRP composition.
또한, 상기 아라미드는 5mm의 게이지 길이(gauge length)로 측정한 강도가 8.5g/d 이상, 바람직하게는 9.5g/d이상이고, 5mm의 게이지 길이로 측정한 신도가 60 내지 135%, 바람직하게는 75 내지 115%가 될 수 있다. The aramid has an intensity of 8.5 g / d or more, preferably 9.5 g / d or more as measured by a gauge length of 5 mm, an elongation of 60 to 135% as measured by a gauge length of 5 mm, Can be from 75 to 115%.
본 발명에서 상기 아라미드의 강도 및 신도가 상기 범위를 벗어나면 FRP 조성물의 균열저항 등을 개선하는 효과가 미약해질 수 있다.In the present invention, if the strength and elongation of the aramid are out of the above range, the effect of improving the cracking resistance of the FRP composition may be weakened.
상기 아라미드는 상대점도(RV)가 2.9 이상, 바람직하게는 3.2 이상이 될 수 있으며, 아라미드의 상대점도(RV)가 상기 범위 보다 낮으면 섬유자체의 강도 및 내마모 특성이 저하될 수 있다.The aramid may have a relative viscosity (RV) of 2.9 or more, and preferably 3.2 or more. If the relative viscosity (RV) of the aramid is lower than the above range, the strength and abrasion resistance of the fiber itself may deteriorate.
본 발명에서 아라미드는 섬도가 1 내지 10 데니어, 바람직하게는 1.5 내지 5 데니어인 것을 사용할 수 있다.In the present invention, the aramid may have a fineness of 1 to 10 denier, preferably 1.5 to 5 denier.
상기 섬도가 1 데니어 미만인 경우에는 섬유의 표면적이 증가해서 접촉면적이 증가하는 장점은 있으나, 섬유 자체의 강도가 저하되고 FRP 조성물 내 섬유의 분산성이 저하될 수 있다. 반면에, 섬도가 10 데니어를 초과하는 경우에는 FRP 조성물 단위면적당 섬유 개수가 감소하여 상대적으로 FRP 조성물에서 취약부가 형성될 위험이 발생될 수 있다.If the fineness is less than 1 denier, the surface area of the fiber increases and the contact area increases. However, the strength of the fiber itself may be lowered and the dispersibility of the fiber in the FRP composition may be lowered. On the other hand, when the fineness is more than 10 denier, the number of fibers per unit area of the FRP composition is decreased, and there is a risk that the fragile portion is relatively formed in the FRP composition.
특정 양태로서, 본 발명에 따른 아라미드 섬유는 분산제가 코팅된 형태를 포함할 수 있다.In a particular embodiment, the aramid fibers according to the present invention may comprise a dispersed agent coated form.
여기서, 상기 분산제가 코팅된 아라미드(aramid)는 인장력, 내마모성, 내구성 등이 뛰어나다는 장점이 있어서 이를 FRP 조성물에 혼입하게 되면, 앞서와 같은 아라미드 고유의 특성을 FRP 조성물에 부여할 수 있으며, 또한, 아라미드는 낮은 열전도도 특성 때문에 단열성능을 향상시킬 수 있다.The aramid coated with the dispersant has an advantage of being excellent in tensile strength, abrasion resistance, durability, etc. Therefore, when mixed with the FRP composition, the aramid inherent characteristics as described above can be imparted to the FRP composition, Aramid can improve insulation performance due to its low thermal conductivity.
다른 특정 양태로서, 본 발명에 따른 아라미드 섬유는 그 표면에 에스테르계 윤활제 및 비이온성 계면활성제를 포함하는 코팅액으로 코팅될 수 있으며, 이러한 코팅을 통해 FRP 조성물 내 분산성과 각 조성물과의 결합력이 크게 향상될 수 있다.In another specific embodiment, the aramid fibers according to the present invention may be coated with a coating solution comprising an ester-based lubricant and a nonionic surfactant on the surface thereof, .
아라미드의 분산성과 결합력의 개선효과를 고려하면, 상기 코팅액의 코팅량은 아라미드 전체 중량 대비 0.5 내지 3중량%가 바람직하나, 이에 한정하는 것은 아니다.Considering the effect of improving the dispersibility and the bonding strength of the aramid, the coating amount of the coating solution is preferably 0.5 to 3% by weight based on the total weight of the aramid, but is not limited thereto.
본 발명에 따른 경화제는 FRP 조성물을 경화시키기 위한 것으로서, 이러한 목적을 위해 당업계에서 통상적으로 사용하는 경화제라면 어떠한 것을 사용하여도 무방하다.The curing agent according to the present invention is for curing the FRP composition, and any curing agent conventionally used in the art may be used for this purpose.
바람직한 경화제로는 파라 톨루엔 설포닉산[PTSA(Para Toluene Solfonic Acid)], 페놀술폰산, t-부틸페록식 벤조에이트(tert-Butylperoxy benzoate, TBPB), 무수프탈산(Phthalic acid anhydride), 방향족 폴리아민, 비스-(4-t -부틸사이클로헥산)페록시디카보네이트, 폴리메캅탄(Polymercaptan) 또는 이들의 혼합물을 사용하는 것이 좋고, 그 사용량은 우레탄 수지 100중량부를 기준으로, 5 내지 20중량부를 사용하는 것이 좋다.Preferable curing agents include para-toluene sulfonic acid (PTSA), phenolsulfonic acid, tert-butylperoxy benzoate, TBPB, phthalic acid anhydride, aromatic polyamines, bis- (4-t-butylcyclohexane) peroxydicarbonate, polymercaptan, or a mixture thereof is preferably used, and the amount of use is preferably 5 to 20 parts by weight based on 100 parts by weight of the urethane resin.
특정 양태로서, 본 발명에 따른 FRP 조성물은 보다 신속한 경화를 위하여 금속염계 코발트, 디메틸 아크릴 아마이드(dimethyl acrylamide) 또는 이들의 혼합물로 이루어진 경화 촉진제를 더 포함할 수 있으며, 이러한 경우 상기 경화 촉진제의 사용량은 우레탄 수지 100중량부를 기준으로 0.5 내지 5중량부인 것을 추천한다.In a specific embodiment, the FRP composition according to the present invention may further comprise a curing accelerator consisting of metal salt cobalt, dimethyl acrylamide or a mixture thereof for faster curing, 0.5 to 5 parts by weight based on 100 parts by weight of urethane resin.
본 발명에 따른 부착증진제는 FRP 조성물로 제조된 제품, 예를 들면 판, 리바 및/또는 패널 등이 접착제, 예를 들면 에폭시수지 등의 접착제를 이용하여 보수 및/또는 보강을 위한 콘크리트 구조물에 접착될 경우, 보다 용이하게 접착할 수 있도록 한다.The adhesion promoting agent according to the present invention can be applied to a product made of FRP composition, for example, a plate, a rebar and / or a panel, etc., by using an adhesive such as an epoxy resin for adhesion to a concrete structure for repairing and / It is possible to more easily adhere.
바람직한 부착증진제로는 아크릴 포스페이트계 부착 증진제, 예를 들면 하이드록시 에틸 아크릴로일 포스페이트, 하이드록시 에틸 메타 아크릴레이트 포스페이트 등을 사용하는 것이 좋고, 그 사용량은 우레탄 수지 100중량부 기준으로 1 내지 10중량부인 것을 추천한다.As a preferable adhesion promoter, it is preferable to use an acrylate-based adhesion promoter, for example, hydroxyethyl acryloyl phosphate, hydroxyethyl methacrylate phosphate or the like, and the amount thereof is preferably 1 to 10 wt% based on 100 wt% It is recommended to wife.
본 발명에 따른 저수축제는 FRP 조성물을 구성하는 인발 성형물에 그 외 성분이 함침된 후 수축되는 것을 방지하기 위한 것으로서, 당업계에서 통상적으로 사용되는 저수축제라면 특별히 한정되지 않지만, 바람직하게는 폴리비닐 아세테이트계 저수축제, 폴리에스터계 저수축제, 특정적으로 불포화 폴리에스터 수지로 이루어진 저수축제를 사용하는 것이 좋다.The water-reducing agent according to the present invention is intended to prevent the other components from being shrunk after impregnation into the draw-forming material constituting the FRP composition, and is not particularly limited as long as it is a commonly used water-reducing agent in the art, It is preferable to use an acetate-based water-reducing agent, a polyester-based water-reducing agent, and a water-reducing agent composed of an unsaturated polyester resin.
바람직한 저수축제의 사용량은 사용자의 선택에 따라 변동 가능하지만, 추천하기로는 우레탄 수지 100중량부 기준으로 3 내지 15중량부인 것이 좋다.The amount of the water-reducing agent to be used may vary depending on the user's choice, but it is recommended that the amount of the water-reducing agent be 3 to 15 parts by weight based on 100 parts by weight of the urethane resin.
특정 양태로서, 본 발명에 따른 FRP 조성물, 특정적으로 콘크리트 구조물의 보수보강용 FRP 조성물은 보수 및/또는 보강에 적용되는 FRP 조성물의 강도를 증가시키고, 조성물간의 결합력, 균열방지 등을 제공하기 위하여 우레탄 수지 100중량부를 기준으로 폴리아미드 섬유 보강재 5 내지 30중량부를 더 포함할 수 있다. As a specific aspect, the FRP composition according to the present invention, specifically the FRP composition for repairing reinforced concrete structures, is used to increase the strength of the FRP composition applied for repair and / or reinforcement and to provide bonding strength, And 5 to 30 parts by weight of a polyamide fiber reinforcing material based on 100 parts by weight of the urethane resin.
상기 폴리아미드 섬유 보강재는 FRP 조성물의 균열방지 및 인성증대를 위해 첨가된다.The polyamide fiber reinforcement is added to prevent cracking and toughness of the FRP composition.
상기 폴리아미드 섬유 보강재로는 폴리아미드(나일론) 6, 폴리아미드(나일론) 66 또는 이들의 혼합물을 포함한다.The polyamide fiber reinforcing material includes polyamide (nylon) 6, polyamide (nylon) 66, or a mixture thereof.
상기 폴리아미드는 비교적 우수한 불활성 물질이며, 강염기를 포함한 다양한 유/무기 물질에 내성이 우수한 것으로 알려져 있다.The polyamide is a relatively inactive material and is known to be highly resistant to various oil / inorganic materials including strong bases.
다른, 특정 양태로서, 본 발명에 따른 FRP 조성물은 우수한 접착력 및 기계적 물성을 유지하여 외부 충격에 의한 크랙 및 탈락현상을 방지하기 위하여 우레탄 수지 100중량부 기준으로 메틸메타아크릴레이트(MMA: Methyl MethAcrylate) 5 내지 15중량부를 더 포함할 수 있다.In another specific embodiment, the FRP composition according to the present invention may contain methyl methacrylate (MMA) on the basis of 100 parts by weight of a urethane resin in order to maintain excellent adhesion and mechanical properties and to prevent cracking and drop- 5 to 15 parts by weight.
여기서, 상기 메틸메타아크릴레이트는 점도가 10 내지 1,000cps인 저점도 메틸메타크릴레이트(MMA) 수지 49 내지 70중량%와, 점도가 2,000 내지 20,000cps인 고점도 메틸메타크릴레이트(MMA) 20 내지 50중량%를 혼합하여 얻어지는 메틸메타크릴레이트 혼합물에 SIS(stylene isoprene stylene), SBR(stylene butadiene rubber), SBS(stylene butadiene stylene) 중에서 선택된 하나 이상의 혼합물 1 내지 10중량%를 혼합한 변성 메틸메타아크릴레이트를 사용할 수도 있다.Wherein the methyl methacrylate comprises 49 to 70% by weight of a low viscosity methyl methacrylate (MMA) resin having a viscosity of 10 to 1,000 cps, 20 to 50% of high viscosity methyl methacrylate (MMA) having a viscosity of 2,000 to 20,000 cps, And 1 to 10% by weight of a mixture of at least one selected from styrene isoprene styrene (SIS), styrene butadiene rubber (SBR), and styrene butadiene styrene (SBS) is mixed with a methyl methacrylate mixture obtained by mixing ethylene / May be used.
이때, 상기 SIS, SBR 및/또는 SBS의 함량이 1중량% 미만인 경우에는 투입시에 도막이 강인하여 내충격성 저하로 인한 크랙이 발생할 수 있고, 10중량%를 초과하는 경우에는 변성 메틸메타크릴레이트 수지의 점도상승으로 인하여 작업성에 문제가 발생될 수 있기 때문에 바람직하지 못하다.If the content of SIS, SBR and / or SBS is less than 1 wt%, cracks may be caused due to a decrease in impact resistance due to a strong coating film upon application. When the content exceeds 10 wt%, a modified methyl methacrylate resin The viscosity of the composition may be increased, resulting in problems in workability.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 소성변형을 감소시키기 위해 우레탄 수지 100중량부를 기준으로 5 내지 30중량부의 변형방지제를 더 포함할 수 있다.In another specific embodiment, the FRP composition according to the present invention may further contain 5 to 30 parts by weight of an anti-strain agent based on 100 parts by weight of the urethane resin in order to reduce plastic deformation.
바림직한 변형방지제는 폴리에틸렌, 폴리뷰텐, 하임팩트폴리스티렌, 폴리프로필렌 또는 이들의 혼합물을 포함하는 것을 추천한다.It is recommended that suitable antidegradants include polyethylene, polybutene, impact polystyrene, polypropylene or mixtures thereof.
이때, 상기 변형방지제의 사용량이 5중량부 미만이면 변형을 방지하는 효과가 미미하고, 30중량부를 초과하면 FRP 조성물을 이용하여 제품, 특정적으로 콘크리트 구조물 보수보강용 제품을 제조할 경우 다른 구성성분과의 혼합이 용이하지 않다는 문제점이 있다.If the amount of the antifriction agent is less than 5 parts by weight, the effect of preventing deformation is insignificant. When the amount of the antifriction agent is more than 30 parts by weight, the FRP composition is used to produce a product, And the like.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 FRP 조성물로 제조되는 제품과 콘크리트 구조물의 보수보강면 사이의 강고한 밀착성, 내수성, 투수성, 산소투과성, 이온투과성, 전기절연성, 내약품성, 기계적 특성(탄성, 유리전이온도, 응력완화) 등을 제공하기 위하여, 우레탄 수지 100중량부를 기준으로 10 내지 50중량부의 아크릴코폴리머를 더 포함할 수 있다.In another specific embodiment, the FRP composition according to the present invention is characterized in that the FRP composition according to the present invention has a strong adhesion property, water resistance, water permeability, oxygen permeability, ion permeability, electrical insulation, chemical resistance, mechanical And may further include 10 to 50 parts by weight of an acrylic copolymer based on 100 parts by weight of urethane resin to provide properties (elasticity, glass transition temperature, stress relaxation) and the like.
바람직한 아크릴코폴리머는 아크릴 모노머, 4-시아노바릭 산(4-cyanovaleric acid), 글리시달메타아크릴레이트(GMA)의 중합에 의해 형성된 것을 사용하는 것이 바람직하고, 추천하기로는 아크릴레이트코폴리머(Acrylates copolymer)를 사용하는 것이 좋다.The preferred acrylic copolymers are preferably those formed by polymerization of acrylic monomers, 4-cyanovaleric acid, glycidyl methacrylate (GMA), and are preferably acrylate copolymers copolymer.
이때, 상기 아크릴 모노머는 부틸아크릴레이트(BAM), 글리시달메타아크릴레이트(GMA) 또는 이들의 혼합물을 사용하는 것이 좋다.At this time, it is preferable to use butyl acrylate (BAM), glycidyl methacrylate (GMA) or a mixture thereof as the acrylic monomer.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 초기 접착력을 강화하기 위하여 폴리비닐알콜을 더 포함할 수 있는데, 폴리비닐알콜은 FRP 조성물의 구성성분의 분산성을 좋게 할 뿐만 아니라, 초기의 끈적임 정도(tacky property)도 증가되어 초기접착력을 개선하여 들뜸 현상, 뒤틀림 등의 불량률을 감소시킬 수 있다.In another specific embodiment, the FRP composition according to the present invention may further comprise polyvinyl alcohol in order to enhance the initial adhesive strength. The polyvinyl alcohol not only improves the dispersibility of the components of the FRP composition, Tacky property is also increased to improve the initial adhesive force, thereby reducing the defective rate of floating phenomenon and distortion.
상기 폴리비닐알콜의 사용량은 우레탄 수지 100중량부를 기준으로 2 내지 10중량부인데, 폴리비닐알콜이 2중량부 이하 일 때는 그 효과가 미미하며, 10중량부 이상일 경우에는 그 양이 과도하여 경제적이지 못할 뿐만 아니라, FRP 조성물의 내후성 등에 나쁜 영향을 미칠 수 있어 바람직하지 않다.The amount of the polyvinyl alcohol used is 2 to 10 parts by weight based on 100 parts by weight of the urethane resin. When the polyvinyl alcohol is 2 parts by weight or less, the effect is insignificant. When the amount is 10 parts by weight or more, But also the FRP composition may have a bad influence on the weatherability and the like, which is not preferable.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 테트라에틸렌펜타민(Tetraethylenepentamine; TEPA)을 우레탄 수지 100중량부를 기준으로 2 내지 8중량부로 더 포함할 수 있는데, 테트라에틸렌펜타민은 폴리아민의 일종으로서, FRP 조성물의 경화속도 및 점도 조절의 역할을 하며, 그 사용량이 2중량부 이하 일 때는 효과가 미미하며, 8중량부 이상일 경우에는 그 양이 과도하여 경제적이지 못하다. In another specific embodiment, the FRP composition according to the present invention may further comprise 2 to 8 parts by weight of tetraethylenepentamine (TEPA) based on 100 parts by weight of a urethane resin, wherein the tetraethylenepentamine is a kind of polyamine , The curing speed and the viscosity of the FRP composition are controlled. When the amount is less than 2 parts by weight, the effect is insignificant. When the amount is more than 8 parts by weight, the amount is excessively excessive, which is not economical.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 접착성을 향상시키기 위하여 옥틸트리에톡시실란을 더 포함할 수 있다.In another particular embodiment, the FRP composition according to the present invention may further comprise octyltriethoxysilane to improve the adhesion.
상기 옥틸트리에톡시실란은 단량체 형태로 사용 가능하며, 상기 단량체의 분자량은 특별히 한정되는 것은 아니지만, 바람직하게는 150 내지 450Da인 것이 좋고, 그 사용량은 우레탄 수지 100중량부를 기준으로 1 내지 10중량부인 것을 추천한다.The octyltriethoxysilane may be used in the form of a monomer. The molecular weight of the monomer is not particularly limited, but is preferably 150 to 450 Da, and the amount of the octyltriethoxysilane used is 1 to 10 parts by weight based on 100 parts by weight of the urethane resin .
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 실온에서 효과적으로 경화하고 내열성, 저온 성능, 내화학성, 내용매성 및 내유성과 같은 개선된 특성을 제공하기 위하여 아미노기 함유 실록산(Aminofunctional siloxan)을 더 포함할 수 있다.In another specific embodiment, the FRP composition according to the present invention further comprises an amino-functional siloxane to effectively cure at room temperature and to provide improved properties such as heat resistance, low temperature performance, chemical resistance, solvent resistance and oil resistance .
상기 아미노 함유 실록산은 특별히 제한되는 것은 아니며, 일례로서 아미노메틸폴리디메틸실록산을 들 수 있으며, 그 사용량은 우레탄 수지 100중량부를 기준으로 3 내지 10중량부인 것을 추천한다.The amino-containing siloxane is not particularly limited, and examples thereof include aminomethylpolydimethylsiloxane. The amount of the amino-containing siloxane used is preferably 3 to 10 parts by weight based on 100 parts by weight of the urethane resin.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 FRP 조성물의 수명 연장을 위하여 마그네슘 실리케이트를 우레탄 수지 100중량부를 기준으로 1 내지 5중량부로 더 포함할 수 있다.In another specific embodiment, the FRP composition according to the present invention may further comprise magnesium silicate in an amount of 1 to 5 parts by weight based on 100 parts by weight of the urethane resin for prolonging the life of the FRP composition.
상기, 마그네슘 실리케이트는 내화학성 및 내약품성과 풍화 저항성이 우수한 물성을 갖고 있으므로 FRP 조성물에 포함되면 상기와 같은 특성에 의해 수명이 연장되는 것이다.Since the magnesium silicate has excellent chemical resistance, chemical resistance and weathering resistance, if it is included in the FRP composition, the life of the magnesium silicate is extended due to the above characteristics.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 우레탄 수지 100중량부 기준으로 1 내지 5중량부의 수축저감제를 더 포함할 수 있다. In another specific embodiment, the FRP composition according to the present invention may further comprise 1 to 5 parts by weight of a shrinkage reducing agent based on 100 parts by weight of the urethane resin.
상기 수축저감제는 FRP 조성물을 이용하여 제품, 예를 들면 판, 리바, 패널 등의 제품 제조시 건조수축을 방지하기 위하여 첨가되는 것으로, 폴리에테르계, 에틸렌글리콜 및 프로필렌글리콜 중에서 선택된 어느 하나 이상이 사용될 수 있으나, 이에 제한되는 것은 아니며, 당업계에서 통상적으로 사용되는 종류가 사용될 수 있다.The shrinkage reducing agent is added to prevent drying shrinkage when a product such as a plate, a rebar, or a panel is manufactured by using the FRP composition, and at least one selected from a polyether type, ethylene glycol, and propylene glycol But the present invention is not limited thereto, and a kind commonly used in the art can be used.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 우레탄 수지 100중량부 기준으로 희석제 3 내지 10중량부를 더 포함할 수 있다.In another specific embodiment, the FRP composition according to the present invention may further comprise 3 to 10 parts by weight of a diluent based on 100 parts by weight of the urethane resin.
바람직한 희석제로는 스티렌모노머, 비닐 아세테이트(VAc) 또는 메틸 아크릴레이트를 사용할 수 있다.A preferred diluent is a styrene monomer, vinyl acetate (VAc) or methyl acrylate.
또 다른 특정 양태로서, 본 발명에 따른 FRP 조성물은 우레탄 수지 100중량부 기준으로 성형-이형제(mould-release agent) 1 내지 10중량부를 더 포함할 수 있다.In another specific embodiment, the FRP composition according to the present invention may further comprise 1 to 10 parts by weight of a mold-release agent based on 100 parts by weight of the urethane resin.
바람직한 성형-이형제로는 스테아린산 아연을 사용하는 것을 추천한다.
It is recommended to use zinc stearate as the preferred molding-release agent.
이와 같은 구성을 갖는 본 발명에 따른 FRP 조성물을 이용한 보수 보강공법을 설명하면 다음과 같다. 여기서, 하기 보수 보강공법은 FRP 조성물의 일 실시양태로서 이에 한정되지 않고, 당업계의 통상적인 FRP 조성물을 이용한 보수 보강공법이라면 어떠한 것을 사용하여도 무방하다.The repair and strengthening method using the FRP composition according to the present invention having such a construction will be described as follows. Hereinafter, the repair and reinforcement method is not limited to the FRP composition, and any repair or reinforcement method using conventional FRP compositions in the art may be used.
본 발명에 따른 FRP 조성물을 이용한 보수 보강공법은 현무암 섬유, 아라미드 섬유, 유리섬유, 탄소섬유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 인발하여 성형물을 제조하는 인발성형단계;The repair and strengthening method using the FRP composition according to the present invention comprises a drawing and forming step of producing a molded product by drawing basalt fiber, aramid fiber, glass fiber, carbon fiber or a mixture of at least one selected from the above;
우레탄수지 100중량부를 기준으로, 수산화알루미늄, 탄산칼슘 또는 이들의 혼합물로 이루어진 충진제 5 내지 50중량부, 경화제 5 내지 20중량부, 부착증진제 1 내지 10중량부, 및 저수축제 3 내지 15중량부로 이루어진 혼합물에 상기 인발성형단계에서 제조된 인발성형물 70 내지 90중량부를 함침시켜 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 제조하는 FRP 조성물 제조단계;5 to 50 parts by weight of a filler consisting of aluminum hydroxide, calcium carbonate or a mixture thereof, 5 to 20 parts by weight of a curing agent, 1 to 10 parts by weight of an adhesion promoter and 3 to 15 parts by weight of a water-reducing agent based on 100 parts by weight of a urethane resin And 70 to 90 parts by weight of the extrudate produced in the drawing and forming step is impregnated into the mixture to prepare a FRP composition for repair and reinforcement in the form of a pellet;
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 시공할 콘크리트 구조물의 바탕면을 정리하는 단계;Arranging the base surface of the concrete structure to be installed with the FRP composition for repair and reinforcement made in the form of the above-mentioned pull-out molding;
상기 콘크리트 구조물의 바탕면에 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 부착 고정하는 단계; Attaching and fixing a FRP composition for repair and reinforcement, which is in the form of a pultrusion molding, to the base surface of the concrete structure;
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물의 표면과 콘크리트 구조물의 바탕면 사이를 실링재로 밀봉 처리하는 단계; 및Sealing the surface of the FRP composition for maintenance and reinforcement made of the above-mentioned draw-out material and the base surface of the concrete structure with a sealing material; And
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물에 주입관과 확인관을 설치하고, 상기 주입관을 통해 에폭시수지를 충전하면서 확인관을 통해 에폭시수지의 충전을 확인하는 단계를 포함한다.Reinforcing FRP composition in the form of a pull-out mold, and confirming the filling of the epoxy resin through the check pipe while filling the epoxy resin through the injection pipe.
여기서, 상기 실링재는 당업계에서 통상적으로 사용하는 실링재라면 특별히 한정되지 않지만, 바람직하게는 실리콘, 모르타르, 콘크리트 또는 이들의 혼합물을 사용할 수 있다.Here, the sealing material is not particularly limited as long as it is a sealing material ordinarily used in the art, but silicon, mortar, concrete or a mixture thereof can be preferably used.
또한, 상기 인발성형물은 판, 리바 또는 패널 형태로서, 상기 인발성형물의 형태에 따라 콘크리트 구조물의 보수보강용 제품의 최종 형태가 결정된다.
The final shape of the product for repair and reinforcement of the concrete structure is determined according to the shape of the draw-out molding, in the form of a plate, a rebar or a panel.
이하에서 실시예를 통하여 본 발명을 구체적으로 설명하기로 한다. 그러나 하기의 실시예는 오로지 본 발명을 구체적으로 설명하기 위한 것으로 이들 실시예에 의해 본 발명의 범위를 한정하는 것은 아니다.
Hereinafter, the present invention will be described in detail by way of examples. However, the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
[실시예 1][Example 1]
현무암 섬유를 인발하여 판 형상의 성형물을 제조하였다.The basalt fiber was pulled out to produce a plate shaped product.
그 다음, 우레탄수지 100g, 수산화알루미늄 25g, 파라 톨루엔 설포닉산 10g, 하이드록시 에틸 아크릴로일 포스페이트 5g, 및 불포화 폴리에스터 수지로 이루어진 저수축제 10g을 혼합한 혼합물에 상기 인발성형단계에서 제조된 인발성형물 80g을 함침시켜 FRP 조성물을 제조하였다.Subsequently, a mixture of 100 g of urethane resin, 25 g of aluminum hydroxide, 10 g of para-toluene sulfonic acid, 5 g of hydroxyethyl acryloyl phosphate and 10 g of a water-reducing agent composed of an unsaturated polyester resin was added to the drawn- To prepare an FRP composition.
[실시예 2][Example 2]
실시예 1과 동일한 방법으로 실시하되, 현무암 섬유를 인발하여 판 형상의 성형물을 제조는 대신 현무암 섬유를 인발하여 리바 형상의 성형물을 제조하여 실시하였다.
The procedure of Example 1 was repeated except that the basalt fiber was pulled out to produce a plate-like molded product, and a basalt fiber was pulled out to produce a rib-shaped molded product.
[실시예 3][Example 3]
실시예 1과 동일한 방법으로 실시하되, 현무암 섬유를 인발하여 판 형상의 성형물을 제조는 대신 현무암 섬유를 인발하여 패널 형상의 성형물을 제조하여 실시하였다.
The same procedure as in Example 1 was carried out except that basalt fiber was pulled out and basalt fiber was pulled out instead of producing a plate-shaped molding to produce a panel-shaped molding.
[실시예 4][Example 4]
실시예 1과 동일한 방법으로 실시하되, 현무암 섬유 대신 현무암 섬유 및 아라마이드 섬유가 1:1의 중량비율로 혼합된 섬유를 사용하여 실시하였다.
The same procedure as in Example 1 was carried out except that basalt fibers and aramid fibers were mixed in a weight ratio of 1: 1 instead of basalt fibers.
[실시예 5][Example 5]
실시예 1과 동일한 방법으로 실시하되, 현무암 섬유 대신 현무암 섬유, 카본섬유 및 아라마이드 섬유가 1:1:1의 중량비율로 혼합된 섬유를 사용하여 실시하였다.
Except that basalt fibers, carbon fibers and aramid fibers were mixed in a weight ratio of 1: 1: 1 instead of basalt fibers.
[실시예 6][Example 6]
실시예 1과 동일한 방법으로 실시하되, FRP 조성물에 폴리아미드 섬유 보강재 15g을 더 부가하여 실시하였다.
The procedure of Example 1 was repeated except that 15 g of a polyamide fiber reinforcing material was added to the FRP composition.
[실시예 7][Example 7]
실시예 1과 동일한 방법으로 실시하되, FRP 조성물에 저점도 메틸메타크릴레이트 수지 60중량%와, 점도가 약 10,000cps인 고점도 메틸메타크릴레이트(MMA) 39중량%, 및 SIS(stylene isoprene stylene) 1중량%를 혼합한 메틸메타아크릴레이트 10g을 더 부가하여 실시하였다.
60% by weight of low viscosity methyl methacrylate resin, 39% by weight of high viscosity methyl methacrylate (MMA) having a viscosity of about 10,000 cps, and styrene isoprene styrene (SIS) were added to the FRP composition in the same manner as in Example 1, 1% by weight of methyl methacrylate was further added.
[실시예 8][Example 8]
실시예 1과 동일한 방법으로 실시하되, FRP 조성물에 폴리뷰텐을 포함하는 변형방지제 15g을 더 부가하여 실시하였다.
The same procedure as in Example 1 was carried out except that 15 g of a deformation preventing agent containing polybutene was further added to the FRP composition.
[실시예 9][Example 9]
실시예 1과 동일한 방법으로 실시하되, FRP 조성물에 부틸아크릴레이트 25g을 더 부가하여 실시하였다.
The same procedure as in Example 1 was carried out except that 25 g of butyl acrylate was further added to the FRP composition.
[실시예 10][Example 10]
실시예 1과 동일한 방법으로 실시하되, FRP 조성물에 테트라에틸렌펜타민 4g을 더 부가하여 실시하였다.The procedure of Example 1 was repeated except that 4 g of tetraethylene pentamine was further added to the FRP composition.
[실시예 11][Example 11]
실시예 1과 동일한 방법으로 실시하되, 옥틸트리에톡시실란 5g을 더 포함시켜 실시하였다.
The procedure of Example 1 was repeated except that 5 g of octyltriethoxysilane was added.
[실시예 12][Example 12]
실시예 1과 동일한 방법으로 실시하되, FRP 조성물에 프로필렌글리콜로 이루어진 수축저감제 3g을 더 부가하여 실시하였다.
The shrinkage-reducing agent 3 g composed of propylene glycol was further added to the FRP composition in the same manner as in Example 1.
[실시예 13][Example 13]
실시예 1과 동일한 방법으로 실시하되, FRP 조성물에 스티렌모노머로 이루어진 희석제 5g을 더 부가하여 실시하였다.
The same procedure as in Example 1 was carried out except that 5 g of a diluent composed of a styrene monomer was further added to the FRP composition.
[실시예 14][Example 14]
실시예 1과 동일한 방법으로 실시하되, FRP 조성물에 스테아린산 아연 5g을 더 부가하여 실시하였다.
The procedure of Example 1 was repeated except that 5 g of zinc stearate was further added to the FRP composition.
[실 험][Experiment]
실시예에 따라 제조된 조성물을 이용하여 제조한 제품의 기계적물성을 측정하였다.The mechanical properties of the products prepared using the compositions prepared according to the examples were measured.
그 결과를 표 2로 나타냈다. The results are shown in Table 2.
표 2에 나타난 바와 같이, 실시예에 따라 제조된 FRP 조성물은 압축강도와 휨강도가 좋고, 부착성이 우수한 것으로 나타났다.
As shown in Table 2, the FRP compositions prepared according to the Examples showed good compressive strength and bending strength and excellent adhesion.
이상에서 설명한 바와 같이, 본 발명이 속하는 기술 분야의 당업자는 본 발명이 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예는 모두 예시적인 것이며 한정적인 것이 아닌 것으로서 이해해야만 한다. 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위의 의미 및 범위 그리고 그 등가개념으로부터 도출되는 모두 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.As described above, those skilled in the art will understand that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are all illustrative and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.
Claims (8)
수산화알루미늄, 탄산칼슘 또는 이들의 혼합물로 이루어진 충진제 5 내지 50중량부;
현무암 섬유, 아라미드 섬유, 유리섬유, 탄소섬유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 인발성형한 성형물 70 내지 90중량부;
파라 톨루엔 설포닉산, 페놀술폰산, t-부틸페록식 벤조에이트, 무수프탈산, 방향족 폴리아민, 비스-(4-t -부틸사이클로헥산)페록시디카보네이트, 폴리메캅탄 또는 이들의 혼합물인 경화제 5 내지 20중량부;
부착증진제 1 내지 10중량부; 및
저수축제 3 내지 15중량부를 포함하는 보수보강용 FRP 조성물에,
테트라에틸렌펜타민을 우레탄수지 100중량부를 기준으로 2 내지 8중량부로 더 포함하고,
변형방지제를 우레탄수지 100중량부를 기준으로 5 내지 30중량부로 더 포함하며,
마그네슘 실리케이트를 우레탄수지 100중량부를 기준으로 1 내지 5중량부로 더 포함하고,
아크릴 모노머, 4-시아노바릭 산(4-cyanovaleric acid), 및 글리시달메타아크릴레이트(GMA)의 중합에 의해 형성된 아크릴코폴리머를 우레탄수지 100중량부를 기준으로 10 내지 50중량부로 더 포함하며,
경화 촉진제를 우레탄수지 100중량부를 기준으로 0.5 내지 5중량부로 더 포함하고,
폴리비닐알콜을 우레탄수지 100중량부를 기준으로 2 내지 10중량부로 더 포함하며,
아미노메틸폴리디메틸실록산을 우레탄수지 100중량부를 기준으로 3 내지 10중량부로 더 포함하는 보수보강용 FRP 조성물.Based on 100 parts by weight of urethane resin,
5 to 50 parts by weight of a filler consisting of aluminum hydroxide, calcium carbonate or a mixture thereof;
70 to 90 parts by weight of a molded product obtained by drawing basalt fiber, aramid fiber, glass fiber, carbon fiber or a mixture of at least one selected from the foregoing;
5 to 20 weight percent of a curing agent which is a paratoluene sulfonic acid, a phenol sulfonic acid, a t-butyl peroxy benzoate, a phthalic anhydride, an aromatic polyamine, a bis- (4-t-butylcyclohexane) peroxydicarbonate, a polymercaptan, part;
1 to 10 parts by weight of an adhesion promoter; And
Reinforced FRP composition comprising 3 to 15 parts by weight of a water-reducing festival,
Further comprising 2 to 8 parts by weight of tetraethylene pentamine based on 100 parts by weight of the urethane resin,
Further comprising 5 to 30 parts by weight of a deformation preventing agent based on 100 parts by weight of the urethane resin,
Further comprising 1 to 5 parts by weight of magnesium silicate based on 100 parts by weight of the urethane resin,
Further comprising 10 to 50 parts by weight of an acrylic copolymer formed by polymerization of an acrylic monomer, 4-cyanovaleric acid, and glycidyl methacrylate (GMA) based on 100 parts by weight of a urethane resin,
Further comprising 0.5 to 5 parts by weight of a curing accelerator based on 100 parts by weight of the urethane resin,
Further comprising 2 to 10 parts by weight of polyvinyl alcohol based on 100 parts by weight of the urethane resin,
Wherein the aminomethyl polydimethyl siloxane further comprises 3 to 10 parts by weight based on 100 parts by weight of the urethane resin.
우레탄수지 100중량부를 기준으로, 수산화알루미늄, 탄산칼슘 또는 이들의 혼합물로 이루어진 충진제 5 내지 50중량부, 파라 톨루엔 설포닉산, 페놀술폰산, t-부틸페록식 벤조에이트, 무수프탈산, 방향족 폴리아민, 비스-(4-t -부틸사이클로헥산)페록시디카보네이트, 폴리메캅탄 또는 이들의 혼합물인 경화제 5 내지 20중량부, 부착증진제 1 내지 10중량부, 및 저수축제 3 내지 15중량부로 이루어진 혼합물에, 테트라에틸렌펜타민을 우레탄수지 100중량부를 기준으로 2 내지 8중량부로 더 포함하고, 변형방지제를 우레탄수지 100중량부를 기준으로 5 내지 30중량부로 더 포함하며, 마그네슘 실리케이트를 우레탄수지 100중량부를 기준으로 1 내지 5중량부로 더 포함하고, 아크릴 모노머, 4-시아노바릭 산(4-cyanovaleric acid), 및 글리시달메타아크릴레이트(GMA)의 중합에 의해 형성된 아크릴코폴리머를 우레탄수지 100중량부를 기준으로 10 내지 50중량부로 더 포함하며, 경화 촉진제를 우레탄수지 100중량부를 기준으로 0.5 내지 5중량부로 더 포함하고, 폴리비닐알콜을 우레탄수지 100중량부를 기준으로 2 내지 10중량부로 더 포함하며, 아미노메틸폴리디메틸실록산을 우레탄수지 100중량부를 기준으로 3 내지 10중량부로 더 포함시킨 혼합물에 상기 인발성형단계에서 제조된 인발성형물 70 내지 90중량부를 함침시켜 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 제조하는 FRP 조성물 제조단계;
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 시공할 콘크리트 구조물의 바탕면을 정리하는 단계;
상기 콘크리트 구조물의 바탕면에 인발성형물 형태로 이루어진 보수보강용 FRP 조성물을 부착 고정하는 단계;
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물의 표면과 콘크리트 구조물의 바탕면 사이를 실링재로 밀봉 처리하는 단계; 및
상기 인발성형물 형태로 이루어진 보수보강용 FRP 조성물에 주입관과 확인관을 설치하고, 상기 주입관을 통해 에폭시수지를 충전하면서 확인관을 통해 에폭시수지의 충전을 확인하는 단계를 포함하는 콘크리트 구조물 보수 보강공법.A drawing-forming step of drawing a basalt fiber, an aramid fiber, a glass fiber, a carbon fiber or a mixture of at least one selected from the foregoing to produce a molded product;
5 to 50 parts by weight of a filler consisting of aluminum hydroxide, calcium carbonate or a mixture thereof, based on 100 parts by weight of urethane resin, paratoluenesulfonic acid, phenolsulfonic acid, t-butylperoxyl benzoate, phthalic anhydride, aromatic polyamine, bis- (4-t-butylcyclohexane) peroxydicarbonate, polymercaptan or a mixture thereof, from 1 to 10 parts by weight of an adhesion promoter, and from 3 to 15 parts by weight of a water-reducing agent, tetraethylene Pentamine in an amount of 2 to 8 parts by weight based on 100 parts by weight of the urethane resin, and further comprising 5 to 30 parts by weight of a deformation preventing agent based on 100 parts by weight of the urethane resin, wherein the magnesium silicate is contained in an amount of 1 to 100 parts by weight, And further comprising 5 parts by weight of an acrylic monomer, 4-cyanovaleric acid, and glycidyl methacrylate (GMA) And 10 to 50 parts by weight based on 100 parts by weight of the urethane resin, wherein the curing accelerator is further added in an amount of 0.5 to 5 parts by weight based on 100 parts by weight of the urethane resin, 100 parts by weight of the polyvinyl alcohol is mixed with 100 parts by weight of the urethane resin, By weight based on 100 parts by weight of urethane resin, and 70 to 90 parts by weight of the extrudate produced in the drawing-forming step is impregnated with the mixture, A FRP composition manufacturing step of producing a FRP composition for repair and reinforcement in the form of a drawn-out molding;
Arranging the base surface of the concrete structure to be installed with the FRP composition for repair and reinforcement made in the form of the above-mentioned pull-out molding;
Attaching and fixing a FRP composition for repair and reinforcement, which is in the form of a pultrusion molding, to the base surface of the concrete structure;
Sealing the surface of the FRP composition for maintenance and reinforcement made of the above-mentioned draw-out material and the base surface of the concrete structure with a sealing material; And
Reinforcing FRP composition in the form of a pull-out mold, and confirming the filling of the epoxy resin through the check pipe while filling the epoxy resin through the injection pipe, and repairing and reinforcing the concrete structure Method.
상기 실링재는 실리콘, 모르타르, 콘크리트 또는 이들의 혼합물인 것을 특징으로 하는 콘크리트 구조물 보수 보강공법.The method according to claim 6,
Wherein the sealing material is silicon, mortar, concrete or a mixture thereof.
상기 인발성형물이 판, 리바 또는 패널 형태인 것을 포함하는 콘크리트 구조물 보수 보강공법.
The method according to claim 6,
Wherein the draw-out mold is in the form of a plate, a rebar or a panel.
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| KR101734136B1 (en) * | 2016-12-27 | 2017-05-24 | (주)알에스건설산업 | Reinforcement Composition Using Basalt Fiber and Constructing Methods Using Thereof |
| KR20180102757A (en) | 2017-03-08 | 2018-09-18 | 충남대학교산학협력단 | Pull-out test specimen, Method for manufacturing specimen, and Pull-out tester |
| KR101767576B1 (en) * | 2017-04-20 | 2017-08-11 | 주식회사 삼진비티 | An Adhesive Composition for Reinforcement of Complex FRP formed Space and Construction Methods Using Thereof |
| KR101835426B1 (en) | 2017-11-21 | 2018-03-08 | 조용상 | A method of reinforcing and reinforcing concrete structures using a FRP composition Made of Complex Fiber Material Manufactured by Drawing with Binder Having Epoxy Resin and Acid Anhydride-Hardener |
| KR101830099B1 (en) | 2017-11-21 | 2018-03-29 | 조용상 | FRP Composition Made of Complex Fiber Material Manufactured by Drawing with Binder Having Epoxy Resin and Acid Anhydride-Hardener |
| CN108240233A (en) * | 2017-12-18 | 2018-07-03 | 固岩科技发展有限公司 | A kind of method based on cementitious material added metal mine made of cement synergist |
| KR101907917B1 (en) * | 2018-04-06 | 2018-10-15 | 이광진 | Repairing and reinforcing structure of concrete building, and the method for the same |
| CN108794038A (en) * | 2018-06-06 | 2018-11-13 | 苏州宏久航空防热材料科技有限公司 | A kind of preparation method of the inexpensive carbon fiber reinforced carbon matrix composite material based on in-situ polymerization |
| CN108794038B (en) * | 2018-06-06 | 2021-08-03 | 苏州宏久航空防热材料科技有限公司 | Preparation method of low-cost carbon fiber reinforced carbon-based composite material based on in-situ polymerization |
| KR101992983B1 (en) | 2019-03-26 | 2019-09-30 | 주식회사 제이에스기술 | Photocurable fiber reinforcing sheet and manufacturing method thereof |
| KR102247034B1 (en) * | 2020-10-08 | 2021-04-30 | 주식회사 에코이앤씨 | Textile sheet and reinforcement panel for concrete structure and method of repair and reinforcement method of structure using the same |
| CN113665190A (en) * | 2021-09-01 | 2021-11-19 | 吉土超砼(山东)新材料技术有限公司 | High-ductility fiber-reinforced polymer rib and preparation method thereof |
| KR102794005B1 (en) * | 2024-12-10 | 2025-04-14 | 주식회사 콘포스 | High-strength FRP formwork panel comprising resin-based composition and construction method using the same |
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