JP4004234B2 - Grout material composition for reinforcing steel joints - Google Patents
Grout material composition for reinforcing steel joints Download PDFInfo
- Publication number
- JP4004234B2 JP4004234B2 JP2001039595A JP2001039595A JP4004234B2 JP 4004234 B2 JP4004234 B2 JP 4004234B2 JP 2001039595 A JP2001039595 A JP 2001039595A JP 2001039595 A JP2001039595 A JP 2001039595A JP 4004234 B2 JP4004234 B2 JP 4004234B2
- Authority
- JP
- Japan
- Prior art keywords
- grout material
- material composition
- ether
- reinforcing steel
- molecular weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims description 33
- 239000000203 mixture Substances 0.000 title claims description 32
- 239000011440 grout Substances 0.000 title claims description 29
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims description 16
- -1 amino compound Chemical class 0.000 claims description 36
- 150000001875 compounds Chemical class 0.000 claims description 14
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 125000002947 alkylene group Chemical group 0.000 claims description 6
- 125000003277 amino group Chemical group 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 239000012024 dehydrating agents Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 239000004014 plasticizer Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims 1
- 230000003078 antioxidant effect Effects 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 26
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 22
- 125000004432 carbon atom Chemical group C* 0.000 description 19
- 229920000768 polyamine Polymers 0.000 description 18
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 239000000843 powder Substances 0.000 description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 11
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 11
- 239000004593 Epoxy Substances 0.000 description 10
- 229920005862 polyol Polymers 0.000 description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 9
- 150000002989 phenols Chemical class 0.000 description 9
- 150000003077 polyols Chemical class 0.000 description 9
- 125000001931 aliphatic group Chemical group 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 7
- 239000002253 acid Substances 0.000 description 7
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 7
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical compound NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 7
- 229920000647 polyepoxide Polymers 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 125000002723 alicyclic group Chemical group 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
- 125000003700 epoxy group Chemical group 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 150000005846 sugar alcohols Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- FUIQBJHUESBZNU-UHFFFAOYSA-N 2-[(dimethylazaniumyl)methyl]phenolate Chemical compound CN(C)CC1=CC=CC=C1O FUIQBJHUESBZNU-UHFFFAOYSA-N 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 4
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 125000005263 alkylenediamine group Chemical group 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 150000007514 bases Chemical class 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 4
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- LCFVJGUPQDGYKZ-UHFFFAOYSA-N Bisphenol A diglycidyl ether Chemical compound C=1C=C(OCC2OC2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 LCFVJGUPQDGYKZ-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 150000002170 ethers Chemical class 0.000 description 3
- 125000000623 heterocyclic group Chemical group 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000011118 potassium hydroxide Nutrition 0.000 description 3
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 150000004982 aromatic amines Chemical class 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- LSHROXHEILXKHM-UHFFFAOYSA-N n'-[2-[2-[2-(2-aminoethylamino)ethylamino]ethylamino]ethyl]ethane-1,2-diamine Chemical compound NCCNCCNCCNCCNCCN LSHROXHEILXKHM-UHFFFAOYSA-N 0.000 description 2
- MERIEQHLDYSVSR-UHFFFAOYSA-N n-[[2-[[bis(oxiran-2-ylmethyl)amino]methyl]phenyl]methyl]-1-(oxiran-2-yl)-n-(oxiran-2-ylmethyl)methanamine Chemical compound C1OC1CN(CC=1C(=CC=CC=1)CN(CC1OC1)CC1OC1)CC1CO1 MERIEQHLDYSVSR-UHFFFAOYSA-N 0.000 description 2
- 229920003986 novolac Polymers 0.000 description 2
- 229920001281 polyalkylene Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 235000013824 polyphenols Nutrition 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 229940079877 pyrogallol Drugs 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- 239000003549 soybean oil Substances 0.000 description 2
- 235000012424 soybean oil Nutrition 0.000 description 2
- 125000001302 tertiary amino group Chemical group 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000013008 thixotropic agent Substances 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
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- LJCJRRKKAKAKRV-UHFFFAOYSA-N (2-amino-2-methylpropyl) 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(N)COC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 LJCJRRKKAKAKRV-UHFFFAOYSA-N 0.000 description 1
- PDZGUDFYWJIFLV-PPHPATTJSA-N (4r)-1-methyl-4-prop-1-en-2-ylcyclohexene;phenol Chemical compound OC1=CC=CC=C1.CC(=C)[C@@H]1CCC(C)=CC1 PDZGUDFYWJIFLV-PPHPATTJSA-N 0.000 description 1
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- KYVBNYUBXIEUFW-UHFFFAOYSA-N 1,1,3,3-tetramethylguanidine Chemical compound CN(C)C(=N)N(C)C KYVBNYUBXIEUFW-UHFFFAOYSA-N 0.000 description 1
- GIWQSPITLQVMSG-UHFFFAOYSA-N 1,2-dimethylimidazole Chemical compound CC1=NC=CN1C GIWQSPITLQVMSG-UHFFFAOYSA-N 0.000 description 1
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- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 description 1
- RXYPXQSKLGGKOL-UHFFFAOYSA-N 1,4-dimethylpiperazine Chemical compound CN1CCN(C)CC1 RXYPXQSKLGGKOL-UHFFFAOYSA-N 0.000 description 1
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- AHDSRXYHVZECER-UHFFFAOYSA-N 2,4,6-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(CN(C)C)=C(O)C(CN(C)C)=C1 AHDSRXYHVZECER-UHFFFAOYSA-N 0.000 description 1
- IYFLSGCPMZKERB-UHFFFAOYSA-N 2,4-dimethylpentane-2,4-diamine Chemical compound CC(C)(N)CC(C)(C)N IYFLSGCPMZKERB-UHFFFAOYSA-N 0.000 description 1
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 1
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- HDPLHDGYGLENEI-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)propan-2-yloxymethyl]oxirane Chemical compound C1OC1COC(C)COCC1CO1 HDPLHDGYGLENEI-UHFFFAOYSA-N 0.000 description 1
- GTEXIOINCJRBIO-UHFFFAOYSA-N 2-[2-(dimethylamino)ethoxy]-n,n-dimethylethanamine Chemical compound CN(C)CCOCCN(C)C GTEXIOINCJRBIO-UHFFFAOYSA-N 0.000 description 1
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- LBZZJNPUANNABV-UHFFFAOYSA-N 2-[4-(2-hydroxyethyl)phenyl]ethanol Chemical compound OCCC1=CC=C(CCO)C=C1 LBZZJNPUANNABV-UHFFFAOYSA-N 0.000 description 1
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 description 1
- WTYYGFLRBWMFRY-UHFFFAOYSA-N 2-[6-(oxiran-2-ylmethoxy)hexoxymethyl]oxirane Chemical compound C1OC1COCCCCCCOCC1CO1 WTYYGFLRBWMFRY-UHFFFAOYSA-N 0.000 description 1
- VIWRDAZLUKFVOK-UHFFFAOYSA-N 2-[[2,3,5,6-tetrachloro-4-[2-[4-(oxiran-2-ylmethoxy)phenyl]propan-2-yl]phenoxy]methyl]oxirane Chemical compound ClC=1C(Cl)=C(OCC2OC2)C(Cl)=C(Cl)C=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 VIWRDAZLUKFVOK-UHFFFAOYSA-N 0.000 description 1
- PLDLPVSQYMQDBL-UHFFFAOYSA-N 2-[[3-(oxiran-2-ylmethoxy)-2,2-bis(oxiran-2-ylmethoxymethyl)propoxy]methyl]oxirane Chemical compound C1OC1COCC(COCC1OC1)(COCC1OC1)COCC1CO1 PLDLPVSQYMQDBL-UHFFFAOYSA-N 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- FSYPIGPPWAJCJG-UHFFFAOYSA-N 2-[[4-(oxiran-2-ylmethoxy)phenoxy]methyl]oxirane Chemical compound C1OC1COC(C=C1)=CC=C1OCC1CO1 FSYPIGPPWAJCJG-UHFFFAOYSA-N 0.000 description 1
- LJBWJFWNFUKAGS-UHFFFAOYSA-N 2-[bis(2-hydroxyphenyl)methyl]phenol Chemical compound OC1=CC=CC=C1C(C=1C(=CC=CC=1)O)C1=CC=CC=C1O LJBWJFWNFUKAGS-UHFFFAOYSA-N 0.000 description 1
- CGWBIHLHAGNJCX-UHFFFAOYSA-N 2-butylguanidine Chemical compound CCCCNC(N)=N CGWBIHLHAGNJCX-UHFFFAOYSA-N 0.000 description 1
- WHNBDXQTMPYBAT-UHFFFAOYSA-N 2-butyloxirane Chemical compound CCCCC1CO1 WHNBDXQTMPYBAT-UHFFFAOYSA-N 0.000 description 1
- UUODQIKUTGWMPT-UHFFFAOYSA-N 2-fluoro-5-(trifluoromethyl)pyridine Chemical compound FC1=CC=C(C(F)(F)F)C=N1 UUODQIKUTGWMPT-UHFFFAOYSA-N 0.000 description 1
- OVEUFHOBGCSKSH-UHFFFAOYSA-N 2-methyl-n,n-bis(oxiran-2-ylmethyl)aniline Chemical compound CC1=CC=CC=C1N(CC1OC1)CC1OC1 OVEUFHOBGCSKSH-UHFFFAOYSA-N 0.000 description 1
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- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 150000003022 phthalic acids Chemical class 0.000 description 1
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 1
- 229960001755 resorcinol Drugs 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 150000003902 salicylic acid esters Chemical class 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- RXJKFRMDXUJTEX-UHFFFAOYSA-N triethylphosphine Chemical compound CCP(CC)CC RXJKFRMDXUJTEX-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Epoxy Resins (AREA)
- Reinforcement Elements For Buildings (AREA)
Description
【0001】
【発明が属する技術分野】
本発明は鉄筋継手用グラウト材組成物に関する。
【0002】
【従来の技術】
コンクリ−ト構造物の梁や柱に配筋される鉄筋は、結合して一本の長大な棒鋼にして施工することが一般に行われており、鉄筋の中央付近に孔を有するカプラ−を用い、その孔にグラウト材を注入して、鉄筋の突き合わせ面や隙間に充填し、硬化させて鉄筋を一体化している。このグラウト材としてエポキシ樹脂系有機質グラウト材が使用されている。
【0003】
【発明が解決しようとする課題】
しかしながら、従来のエポキシ樹脂系の有機質グラウト材では、所定の強度を得る目的及び注入後の樹脂のたれを防止する目的で無機系のフィラ−やチキソトロピー性付与剤を添加しているため、グラウト材は高粘度になっており、そのグラウト材を充填した供給管から、押し出し器を使用し鉄筋継手に注入する際、抵抗が大きく注入しづらいという問題があった。本発明は、上記問題を解決するものであり、注入作業性が良好で、鉄筋継手に注入した後でもたれが生じにくいエポキシ樹脂系有機質グラウト材組成物を提供するものである。
【0004】
【課題を解決するための手段】
本発明者らは、上記目的を達成すべく鋭意検討を重ねた結果、本発明に到達した。
すなわち、本発明は、ポリオールのエチレンオキサイド(EO)及び炭素数3〜6のアルキレンオキサイド(AO)付加物(A)、ポリエポキシ化合物(B)、及びアミノ基に由来する活性水素を2個以上有するアミノ化合物(C)を配合してなることを特徴とする鉄筋継手用グラウト材組成物である。
【0005】
【発明の実施の形態】
本発明において低分子ポリオールのエチレンオキサイド(EO)及び炭素数3〜6のアルキレンオキサイド(AO)付加物(A)はポリオールに(EO)と(AO)を付加したものである。
低分子ポリオールとしては2〜8価又はそれ以上で、炭素数2〜30の多価アルコール、2〜8価又はそれ以上で、炭素数6〜40の多価フェノール等が挙げられる。
2〜8価の多価アルコールとしては、エチレングリコール,プロピレングリコール,1,3−ブチレングリコール,1,4−ブタンジオール,1、6−ヘキサンジオール,3−メチルペンタンジオール,ジエチレングリコール,ネオペンチルグリコール,1,4−ビス(ヒドロキシメチル)シクロヘキサン,1,4−ビス(ヒドロキシエチル)ベンゼン,2,2−ビス(4,4’−ヒドロキシシクロヘキシル)プロパンなどの2価アルコール;グリセリン,トリメチロールプロパンなどの3価アルコール;ペンタエリスリト―ル,ジグリセリン,α−メチルグルコシド,ソルビト―ル,キシリット,マンニット,ジペンタエリスリト−ル,グルコ−ス,フルクト−ス,ショ糖などの4〜8価のアルコ―ル等が挙げられる。
上記多価フェノ―ル類としては、ピロガロ―ル,カテコール,ヒドロキノンなどの多価フェノ―ル;ビスフェノ―ルA,ビスフェノールF,ビスフェノールS等のビスフェノ―ル類などが挙げられる。
【0006】
これらの低分子ポリオールは1種又は2種以上使用できる。これらの低分子ポリオールの内で好ましくは多価アルコールであり、さらに好ましくは2〜4価で炭素数2〜10の多価アルコールであり、特に好ましくは2〜3価で炭素数3〜6の多価アルコールである。
(AO)としては、プロピレンオキシド(PO)、1,2−、2,3−若しくは1,3−ブチレンオキシド、1、2−ヘキシレンオキシド等が挙げられ、好ましくは(PO)である。
【0007】
(EO)と(AO)の低分子ポリオールへの付加形式はランダム付加でもブロック付加でもよいが、好ましくはランダム付加である。ランダム付加であると組成物の注入作業性とチキソトロピー性が好ましく注入後たれにくい。(EO)と(AO)の低分子ポリオールへの総付加モルは3〜150であり、好ましくは15〜130である。
(EO)と(AO)の付加モル数の比は好ましくは1:0.1〜0.5であり、さらに好ましくは1:0.12〜0.35であり、特に好ましくは1:0.14〜0.25である。(AO)の付加モル数の比が0.1以上であると組成物のチキソトロピー性が良好となり注入後たれにくく、硬化物の耐水性も良好である。0.5以下であると組成物が低粘度で注入作業性が良好であり且つ組成物のチキソトロピー性が良好で注入後たれにくい。
【0008】
本発明の低分子ポリオールの(EO)及び(AO)の付加物(A)の製造は、従来公知の方法で行うことができる。触媒(アルカリ触媒、アミン触媒、酸性触媒)の存在下に常圧又は加圧下に1段階または多段階で行われる。
本発明における(A)の数平均分子量は好ましくは208〜10,000であり、特に好ましくは1,000〜8,000である。
【0009】
本発明においてポリエポキシ化合物(B)は、分子中に2個以上のエポキシ基を有していれば特に限定されず、用途、目的に応じて適宜選択することができる。好ましくは分子中にエポキシ基を2〜6個有するものである。ポリエポキサイドのエポキシ当量(エポキシ基1個当たりの分子量)は、通常65〜1000であり、好ましくは90〜500である。エポキシ当量が1000以下であると、架橋構造がル−ズにならず硬化物の耐水性、耐薬品性、機械的強度等の物性が良好であり、一方、エポキシ当量が65以上であると硬化物の耐水性、耐薬品性、機械的強度等が良好な架橋構造となる。
ポリエポキシ化合物(B)の例としては、下記(B1)から(B5)が挙げられる。
【0010】
(B1)グリシジルエ−テル型
(i)2価フェノ−ル類のジグリシジルエ−テル
炭素数6〜30の2価フェノ−ル類のジグリシジルエ−テル例えば、ビスフェノ−ルFジグリシジルエ−テル、ビスフェノ−ルAジグリシジルエ−テル、ビスフェノ−ルBジグリシジルエ−テル、ビスフェノ−ルADジグリシジルエ−テル、ビスフェノ−ルSジグリシジルエ−テル、ハロゲン化ビスフェノ−ルAジグリシジルエ−テル、テトラクロロビスフェノ−ルAジグリシジルエ−テル、カテキンジグリシジルエ−テル、レゾルシノ−ルジグリシジルエ−テル、ハイドロキノンジグリシジルエ−テル、1,5−ジヒドロキシナフタレンジグリシジルエ−テル、ジヒドロキシビフェニルジグリシジルエ−テル、オクタクロロ−4,4’−ジヒドロキシビフェニルジグリシジルエ−テル、テトラメチルビフェニルジグリシジルエーテル、9,9’−ビス(4−ヒドロキシフェニル)フロオレンジグリシジルエ−テル、ビスフェノ−ルA2モルとエピクロロヒドリン3モルの反応から得られるジグリシジルエ−テル等が挙げられる。
【0011】
(ii)3価〜6価又はそれ以上の、多価フェノ−ル類のポリグリシジルエ−テル
炭素数6〜50又はそれ以上で、分子量250〜5000の3価〜6価又はそれ以上の多価フェノ−ル類のポリグリシジルエ−テル例えば、ピロガロ−ルトリグリシジルエ−テル、ジヒドロキシナフチルクレゾ−ルトリグリシジルエ−テル、トリス(ヒドロキシフェニル)メタントリグリシジルエ−テル、ジナフチルトリオ−ルトリグリシジルエ−テル、テトラキス(4−ヒドロキシフェニル)エタンテトラグリシジルエ−テル、p−グリシジルフェニルジメチルトリ−ルビスフェノ−ルAグリシジルエ−テル、トリスメチル−tert−ブチル−ブチルヒドロキシメタントリグリシジルエ−テル、4,4’−オキシビス(1,4−フェニルエチル)テトラクレゾ−ルグリシジルエ−テル、4,4’−オキシビス(1,4−フェニルエチル)フェニルグリシジルエ−テル、ビス(ジヒドロキシナフタレン)テトラグリシジルエ−テル、フェノ−ル又はクレゾ−ルノボラック樹脂(分子量400〜5000)のグリシジルエ−テル、リモネンフェノ−ルノボラック樹脂(分子量400〜5000)のグリシジルエーテル、フェノ−ルとグリオキザ−ル、グルタ−ルアルデヒド、又はホルムアルデヒドの縮合反応によつて得られるポリフェノ−ル(分子量400〜5000)のポリグリシジルエ−テル、及びレゾルシンとアセトンの縮合反応によって得られる分子量400〜5000のポリフェノ−ルのポリグリシジルエ−テル等が挙げられる。
【0012】
(iii)脂肪族2価アルコ−ルのジグリシジルエ−テル
炭素数2〜100、分子量150〜5000のジオールのジグリシジルエ−テル例えば、エチレングリコ−ルジグリシジルエ−テル、プロピレングリコ−ルジグリシジルエ−テル、テトラメチレングリコ−ルジグリシジルエ−テル、1,6−ヘキサンジオ−ルジグリシジルエ−テル、ポリエチレングリコ−ル(分子量150〜4000)ジグリシジルエ−テル、ポリプロピレングリコ−ル(分子量180〜5000)ジグリシジルエ−テル、ポリテトラメチレングリコ−ル(分子量200〜5000)ジグリシジルエ−テル、ネオペンチルグリコ−ルジグリシジルエ−テル、ビスフェノ−ルAのアルキレンオキシド〔エチレンオキシド又はプロピレンオキシド(1〜20モル)〕付加物のジグリシジルエ−テル等が挙げられる。
(iv)3価〜6価又はそれ以上の脂肪族アルコ−ルのポリグリシジルエ−テル
炭素数3〜50又はそれ以上で、分子量92〜10000の3価〜6価又はそれ以上の多価アルコ−ル類のグリシジルエ−テル例えば、トリメチロ−ルプロパントリグリシジルエ−テル、グリセリントリグリシジルエ−テル、ペンタエリスリト−ルテトラグリシジルエ−テル、ソルビト−ルヘキサグリシジルエ−テル、ポリ(n=2〜5)グリセロ−ルポリグリシジルエ−テル等が挙げられる。
【0013】
(B2)グリシジルエステル型
炭素数6〜20又はそれ以上で、2価〜6価又はそれ以上の芳香族ポリカルボン酸のグリシジルエステル、及び炭素数6〜20又はそれ以上で、2価〜6価又はそれ以上の脂肪族もしくは脂環式ポリカルボン酸のグリシジルエステルが挙げられる。
(i)芳香族ポリカルボン酸、例えばフタル酸類のグリシジルエステルとしては、フタル酸ジグリシジルエステル、イソフタル酸ジグリシジルエステル、テレフタル酸ジグリシジルエステル、トリメリット酸トリグリシジルエステル等;
(ii)脂肪族もしくは脂環式ポリカルボン酸のグリシジルエステルとしては、上記フェノ−ル系のグリシジルエステルの芳香核水添加物、ダイマ−酸ジグリシジルエステル、ジグリシジルオキサレ−ト、ジグリシジルマレ−ト、ジグリシジルスクシネ−ト、ジグリシジルグルタレ−ト、ジグリシジルアジペ−ト、ジグリシジルピメレ−ト、グリシジル(メタ)アクリレ−トの(共)重合体(重合度は例えば2〜10)、トリカルバリル酸トリグリシジルエステル等が挙げられる。
【0014】
(B3)グリシジルアミン型
炭素数6〜20又はそれ以上で、2〜10又はそれ以上の活性水素原子をもつ芳香族アミン類のグリシジルアミン及び脂肪族、脂環式若しくは複素環式アミン類のグリシジルアミンが挙げられる。
(i)芳香族アミン類のグリシジルアミンとしては、N,N−ジグリシジルアニリン、N,N−ジグリシジルトルイジン、N,N,N’,N’−テトラグリシジルジアミノジフェニルメタン、N,N,N’,N’−テトラグリシジルジアミノジフェニルスルホン、N,N,N’,N’−テトラグリシジルジエチルジフェニルメタン、N,N,O−トリグリシジルアミノフェノ−ル等;
(ii)脂肪族アミン類のグリシジルアミンとしては、N,N,N’,N’−テトラグリシジルキシリレンジアミン、N,N,N’,N’−テトラグリシジルヘキサメチレンジアミン等;
(iii)脂環式アミン類のグリシジルアミンとしては、N,N,N’,N’−テトラグリシジルキシリレンジアミンの水添化合物等が挙げられる。
複素環式アミンのグリシジルアミンとしてはトリスグリシジルメラミン等が挙げられる。
【0015】
(B4)鎖状脂肪族エポキサイド
炭素数6〜50又はそれ以上で2〜6価又はそれ以上の鎖状脂肪族エポキサイド、例えばエポキシ当量130〜1,000のエポキシ化ポリブタジエン(分子量90〜2,500)、エポキシ化大豆油(分子量130〜2,500)等が挙げられる。
(B5)脂環式エポキサイド
炭素数6〜50又はそれ以上で、分子量90〜2500、エポキシ基の数1〜4又はそれ以上の脂環式エポキサイド例えば、ビニルシクロヘキセンジオキシド、リモネンジオキシド、ジシクロペンタジエンジオキシド、ビス(2,3−エポキシシクロペンチル)エ−テル、エチレングリコ−ルビスエポキシジシクロペンチルエ−テル、3,4エポキシ−6−メチルシクロヘキシルメチル3’,4’−エポキシ−6’−メチルシクロヘキサンカルボキシレ−ト、ビス(3,4−エポキシ−6−メチルシクロヘキシルメチル)アジペ−ト、及びビス(3,4−エポキシ−6−メチルシクロヘキシルメチル)ブチルアミン等が挙げられる。また、前記フェノ−ル類のエポキシ化合物の核水添化物も含む。
これらのうち、好ましいのはグリシジルエ−テル型(B1)である。(B1)の内、好ましいのは2価フェノ−ル類である。
【0016】
本発明のアミノ化合物(C)は、分子中にアミノ基に由来する活性水素を2個以上有する化合物であれば特に限定されず、用途、目的に応じて適宜選択することができる。好ましくは分子中にアミノ基に由来する活性水素を2〜10個有する化合物であり、更に好ましくは3〜6個有する化合物である。(C)の活性水素当量(活性水素1個当りの分子量)は、通常15〜500であり、好ましくは20〜200である。活性水素当量が500以下であると架橋構造がルーズにならず硬化物の接着性、耐久性等の物性が良好である。活性水素当量が15以上であると硬化物の接着性、耐久性、耐薬品性等の物性が良好である。
【0017】
(C)のアミノ化合物の例としては、以下の(C1)〜(C8)がそれぞれ挙げられる。
(C1)脂肪族ポリアミン類(炭素数2〜18、官能基数2〜7、分子量60〜500);
(i)脂肪族ポリアミン{炭素数2〜6のアルキレンジアミン(エチレンジアミン、プロピレンジアミン、トリメチレンジアミン、テトラメチレンジアミン、ヘキサメチレンジアミンなど)、ポリアルキレン(炭素数2〜6)ポリアミン〔ジエチレントリアミン、イミノビスプロピルアミン、ビス(ヘキサメチレン)トリアミン,トリエチレンテトラミン、テトラエチレンペンタミン、ペンタエチレンヘキサミン等〕};
(ii)これらのアルキル(炭素数1〜4)又はヒドロキシアルキル(炭素数2〜4)置換体〔ジアルキル(炭素数1〜3)アミノプロピルアミン、トリメチルヘキサメチレンジアミン、アミノエチルエタノ−ルアミン、2,5−ジメチル−2,5−ヘキサメチレンジアミン、メチルイミノビスプロピルアミンなど〕;
(iii)脂環又は複素環含有脂肪族ポリアミン〔3,9−ビス(3−アミノプロピル)−2,4,8,10−テトラオキサスピロ[5,5]ウンデカンなど〕;
(iv)芳香環含有脂肪族アミン類(炭素数8〜15)(キシリレンジアミン、テトラクロル−p−キシリレンジアミン等);
【0018】
(C2)脂環式ポリアミン(炭素数4〜15、官能基数2〜3);1,3−ジアミノシクロヘキサン、イソホロンジアミン、メンセンジアミン、4,4´−メチレンジシクロヘキサンジアミン(水添メチレンジアニリン)等;
(C3)複素環式ポリアミン(炭素数4〜15、官能基数2〜3):ピペラジン、N−アミノエチルピペラジン、1,4−ジアミノエチルピペラジン、1,4ビス(2−アミノ−2−メチルプロピル)ピペラジン等;
(C4)ポリアミドポリアミン:ジカルボン酸(ダイマ−酸等)と過剰の(酸1モル当り2モル以上の)ポリアミン類(官能基数2〜7の上記アルキレンジアミン,ポリアルキレンポリアミン等)との縮合により得られるポリアミドポリアミン(数平均分子量200〜1000)等;
(C5)ポリエ−テルポリアミン:ポリエーテルポリオ−ル(前述のポリアルキレングリコ−ル等)のシアノエチル化物の水素化物(分子量100〜1000)等;
(C6)エポキシ付加ポリアミン:エポキシ化合物(上記ポリエポキサイド(B1)並びにモノエポキサイド(b))1モルをポリアミン類(上記アルキレンジアミン、ポリアルキレンポリアミン等)に1〜30モル付加させることによって得られるエポキシ付加ポリアミン(分子量100〜1000)等;
【0019】
(C7)シアノエチル化ポリアミン:アクリロニトリルとポリアミン類(上記アルキレンジアミン、ポリアルキレンポリアミン等)との付加反応により得られるシアノエチル化ポリアミン、(ビスシアノエチルジエチレントリアミン等)(分子量100〜500)等;
(C8)その他のポリアミン化合物:(i)ヒドラジン類(ヒドラジン、モノアルキルヒドラジン等);(ii)ジヒドラジッド類(コハク酸ジヒドラジッド,アジピン酸ジヒドラジッド,イソフタル酸ジヒドラジッド,テレフタル酸ジヒドラジッド等);(iii)グアニジン類(ブチルグアニジン,1−シアノグアニジン等);(iv)ジシアンジアミド等;並びにこれらの2種以上の混合物。
上記(C1)〜(C8)のうち、好ましくは(C1)、(C2)、(C3)、(C4)及び(C6)であり、特に好ましいのは(C1)である。
【0020】
本発明の鉄筋継手用グラウト材組成物において、(A):(B):(C)の配合比は、(A)+(B)+(C)の合計を100質量部としたとき、好ましくは1〜10:10〜80:5〜60質量部であり、さらに好ましくは1〜5:15〜80:5〜50質量部であり、特に好ましくは1〜3:20〜80:5〜40質量部である。(A)が1質量部以上であると注入作業性が良好となり、10質量部以下であると架橋構造が密となり硬化物の物性が良好となる。(B)が10質量部以上であると耐水性が良好となり、80質量部以下であると架橋構造が密となり硬化物物性が良好となる。(C)が5質量部以上であると鉄筋との密着性が良好となり、60質量部以下であるとアミンブラッシングを生じない。
【0021】
本発明の鉄筋継手用グラウト材組成物には、硬化剤としてアミノ化合物(C)が必須成分であるが、必要により硬化促進剤として塩基性化合物(E)をさらに含有させることができる。
塩基性化合物(E)としては、3級アミノ化合物(E1)、ソジウムメチラ−ト、カセイソ−ダ、カセイカリ、炭酸リチウム等のアルカリ化合物(E2)、トリエチルフォスフィン、トリフェニルフォスフィン等のルイス塩基化合物(E3)等が挙げられる。これらにうち好ましいものは3級アミノ化合物(E1)である。
【0022】
上記の(E)として好ましい3級アミノ化合物(E1)は分子中に3級アミノ基を有する化合物であれば特に限定されないが、例としては以下の(E1−1)から(E1−3)がそれぞれあげられる。
(E1−1)脂肪族3級アミン:トリメチルアミン、トリエチルアミン、ジメチルシクロヘキシルアミン、ジメチルベンジルアミン、1,3−ジメチルイミダゾリジノン、1,2−ジメチルイミダゾ−ル、テトラエチルメチレンジアミン、テトラメチルプロパン−1,3−ジアミン、テトラメチルヘキサン−1,6−ジアミン、ペンタメチルジエチレントリアミン、ペンタメチルジプロピレントリアミン、テトラメチルグアニジン、ジメチルピペラジン、N−メチル−N’−(2−ジメチルアミノ)−エチルピペラジン、N−メチルモルホリン、N−(N’,N’−ジメチルアミノエチル)モルホリン、ジメチルアミノエタノ−ル、ジメチルアミノエトキシエタノ−ル、N,N,N’−トリメチルアミノエチル−エタノ−ルアミン、N−メチル−N’−(2−ヒドロキシエチル)モルホリン、ビス(2−ジメチルアミノエチル)エ−テル、エチレングリコ−ル(3−ジメチル)アミノプロピルエ−テル等、
【0023】
(E1−2)フェノ−ル核含有脂肪族3級アミン:N,N−ジメチルアミノメチルフェノ−ル(通称「DMP−10」)、トリス(N,N−ジメチルアミノメチルフェノ−ル(通称「DMP−30」)等、
(E1−3)含窒素複素環化合物 1,8−ジアザビシクロ(5,4,0)−ウンデセン−7(通称「DBU」)、1,5−ジアザビシクロ(4,3,0)−ノネン−5(通称「DBN」)、6−ジブチルアミノ−1,8−ジアザビシクロ(5,4,0)−ウンデセン−7(通称「DBA−DBU」)、トリエチレンジアミン、ヘキサメチレンテトラミン等があげられる。
3級アミノ化合物(E1)は得ようとする硬化速度、可使時間に応じて種類、添加量とも適宜選択すればよい。
【0024】
本発明の鉄筋継手用グラウト材組成物には、さらに必要に応じて(1)シランカップリング剤、チタンカップリング剤等の接着性付与剤、(2)ヒンダ−ドアミン類、ハイドロキノン類、ヒンダ−ドフェノ−ル類、硫黄含有化合物等の酸化防止剤、(3)ベンゾフェノン類、ベンゾトリアゾ−ル類、サリチル酸エステル類、金属錯塩類等の紫外線吸収剤、(4)金属石けん類、重金属(例えば亜鉛、錫、鉛、カドミウム等)の無機及び有機塩類、有機錫化合物等の安定剤、(5)フタル酸エステル、リン酸エステル、脂肪酸エステル、エポキシ化大豆油、ひまし油、流動パラフィンアルキル多環芳香族炭化水素等の可塑剤、(6)パラフィンワックス、マイクロクリスタリンワックス、重合ワックス、密ロウ、鯨ロウ低分子量ポリオレフィン等のワックス類、(7)ベンジルアルコ−ル、タ−ル、ピチュ−メン等の非反応性希釈剤、(8)低分子脂肪族グリシジルエ−テル、芳香族モノグリシジルエ−テル等の反応性希釈剤、(9)炭酸カルシウム、カオリン、タルク、マイカ、ベントナイト、クレ−、セリサイト、アスベスト、ガラス繊維粉、炭素繊維粉、アラミド繊維粉、ナイロン繊維粉、アクリル繊維粉、ガラス繊維粉、ガラスバル−ン、シラスバル−ン、石炭粉、アクリル樹脂粉、フェノ−ル樹脂粉、金属粉末、セラミック粉末、ゼオライト、スレ−ト粉等の充填剤、(10)活性炭、ゼオライト、シリカゾル、シリカゲルなどの脱臭剤(11)カ−ボンブラック、酸化チタン、赤色酸化鉄、鉛丹、パラレッド、紺青等の顔料又は染料、(12)酢酸エチル、トルエン、アルコ−ル類、エ−テル類、ケトン類等の溶剤、(13)発泡剤、(14)消泡剤、(15)脱水剤、(16)帯電防止剤、(17)抗菌剤、(18)防かび剤、(19)粘度調整剤、(20)香料、(21)難燃剤等を添加することができる。
【0025】
本発明の鉄筋継手用グラウト材組成物において、常温では(A)は(B)及び(C)と反応しないので、常温以下での各成分の貯蔵及び使用形態は、以下の(i)及び(ii)が例示される。
(i)(A)、(B)及び(C)を独立した3液の形で保存し、使用時に3成分を混合し硬化させる。(任意成分である塩基性化合物(E)は、第4成分として、単独で保存し、使用時に他の成分と混合して用いることも、(A)及び/又は(C)成分中に添加した形で保存することもできる。)
(ii)(A)及び(B)の混合物、並びに(A)及び(C)の混合物を独立した2液の形で保存し、使用時に該2成分を混合し硬化させる。[任意成分である塩基性化合物(E)は、第3成分として、単独で保存し、使用時に他の成分と混合して用いることも、(C)中に添加した形で保存することもできる。]
【0026】
本発明の鉄筋継手用グラウト材組成物は万能混合機等の通常の混合機を使用して(A)、(B)、(C)及びその他の配合物が混合される。(C)は通常使用時に配合される。該グラウト材組成物は、注入作業性、硬化性、接着性の点から25℃における粘度は、好ましくは30〜80Pa・sであり、特に好ましくは40〜70Pa・sである。
【0027】
本発明の鉄筋継手用グラウト材組成物の注入方法としては特に限定がなく、従来公知の注入手段を採用することができる。すなわち、(A)、(B)、(C)及びその他を配合した後、コ−キングガンに充填し、エポキシ樹脂が硬化を始める前にカプラ−中央付近の孔から注入しても良いし、特開平9−13675に示されている装置を用いて(A)及び(B)の混合物並びに(C)の独立した2液を別々に供給管に充填し、先端のミキサ−で混練しながら注入しても良い。本発明の鉄筋継手用グラウト材組成物は良好な注入作業性を有し、さらにチキソトロピー性がよく注入後たれにくいという特徴を有する。
グラウト材組成物の硬化条件は従来公知の条件でよく、温度は好ましくは5〜40℃であり、特に好ましくは10〜35℃である。
その硬化物は接着性特に鉄に対する接着性、耐久性特に継手としての耐久性、耐薬品性特に耐アルカリ性等の耐薬品性等の物性に優れる。
本発明の鉄筋継手用グラウト材組成物はコンクリート構造物の鉄筋
等の鉄筋継手用グラウト材として有用である。
【0028】
【実施例】
以下、実施例により本発明を具体的に説明するが、本発明はこれらの実施例に限定されるものではない。実施例及び比較例中の部は質量部を表わす。
【0029】
また、実施例中の評価項目の試験方法は以下の通りである。
[粘度]
25℃に温調したグラウト材を混合後100gになるように容器に投入し、2分間ガラス棒で充分攪拌する。BH型粘度計(回転数20rpm、7号スピンドル)で粘度をJIS K7117に準じて測定した。
[SVI値]
25℃に温調したグラウト材を混合後100gになるように容器に投入し、2分間ガラス棒で充分攪拌する。BH型粘度計で(7号スピンドル)回転数2rpmでの粘度、回転数20rpmでの粘度をJIS K7117に準じて測定し下記式(1)てSVI値を算出した。
S=η1/η2 (1)
S:SVI値
η1:回転数2rpmにおける粘度
η2:回転数20rpmにおける粘度
【0030】
[引張強さ]
硬化前のグラウト材を、泡をかまないように注意しながら厚さ約2mmの板状にし、25℃で5日間養生する。養生後厚さ約2mmの1号試験片を1mm/minの試験速度でJIS K7113に準じて測定した。
[圧縮降伏強さ、圧縮弾性係数]
硬化前のグラウト材を混合後150gになるように容器に投入し、2分間ガラス棒で攪拌する。これを、泡をかまないように注意しながら厚さ10mmの板状にし、25℃で5日間養生する。養生後10.4×10.4×30.0(mm)の直方体を2mm/minの試験速度でJIS K7208に準じて測定した。
[注入時間]
供給管に充填したグラウト材を25℃に温調し、押し出し器を使用して鉄筋継手(サイズ:D29)に注入する。注入し始めてから鉄筋継手からあふれ出すまでの時間を測定する。
[たれ]
グラウト材を注入した鉄筋継手からたれの有無を目視で確認する。
【0031】
製造例1
攪拌式オ−トクレ−ブにプロピレングリコ−ルを147部、触媒として水酸化カリウムを0.76部仕込み、エチレンオキサイド682部とプロピレンオキサイド171部とを混合したものを吹き込み、110℃で反応させた。130℃で熟成後、酸化マグネシウム系吸着剤(協和化学工業(株)製:「キョ−ワ−ド600」)で処理し、触媒を除去してアルキレンオキサイド付加物(A−1)を得た。このものの水酸基価は28、粘度は700mPa・s/25℃であった。
製造例2
攪拌式オ−トクレ−ブにプロピレングリコールを146部、触媒として水酸化カリウムを0.7部仕込み、エチレンオキサイド597部とプロピレンオキサイド256部とを混合したものを吹き込み、110℃で反応させた。130℃で熟成後、酸化マグネシウム系吸着剤(協和化学工業(株)製:「キョ−ワ−ド600」)で処理し、触媒を除去してアルキレンオキサイド付加物(A−2)を得た。このものの水酸基価は27、粘度は600mPa・s/25℃であった。
【0032】
実施例1〜3、比較例1〜3
25℃雰囲気下で、表2に示した配合量で各成分を混合攪拌、注入し、前記の試験方法により鉄筋継手用グラウト材組成物としての性能評価試験を行った。分子中に2個以上のエポキシ基を有する化合物(B)としては次のものを使用した。
エピコート828(ジャパンエポキシレジン社製ビスフェノ−ルAジグリシジルエ−テル,エポキシ当量190,粘度11Pa・s)、及びエピオールB(日本油脂社製ブチルグリシジルエ−テル、エポキシ当量135,粘度1mPa・s)
分子中にアミノ基に由来する活性水素を2個以上有するアミノ化合物(C)としては次のものを使用した。
ペンタエチレンヘキサミン(東ソ社製、活性水素当量29,粘度70mPa・s)
また充填剤として下記のものを使用した。
ホワイトンSB;白石カルシウム社製炭酸カルシウム
また比較例のチキソトロピー性付与剤として下記のものを使用した。
オルガナイトT(日本有機粘土社製有機ベントナイト)
【0033】
【表1】
【0034】
【発明の効果】
本発明の鉄筋継手用グラウト材組成物は、
(1)良好な注入作業性を有する
(2)鉄筋継手に注入した後でも、非常にたれにくい
(3)硬化物の強度に優れる
等の効果を奏する。[0001]
[Technical field to which the invention belongs]
The present invention relates to a grout material composition for reinforcing steel joints.
[0002]
[Prior art]
Reinforcing bars placed on beams and columns in concrete structures are generally constructed by joining them into a single long steel bar, using a coupler with a hole near the center of the reinforcing bar. The grout material is injected into the holes, filled into the abutting surfaces and gaps of the reinforcing bars, and cured to integrate the reinforcing bars. An epoxy resin organic grout material is used as the grout material.
[0003]
[Problems to be solved by the invention]
However, in the conventional epoxy resin organic grout material, an inorganic filler or thixotropic agent is added for the purpose of obtaining a predetermined strength and preventing the resin from sagging after injection. Has a high viscosity, and there is a problem that resistance is large and difficult to inject from the supply pipe filled with the grout material into the rebar joint using an extruder. The present invention solves the above problems, and provides an epoxy resin organic grout material composition that has good injection workability and is less likely to sag after being injected into a reinforcing bar joint.
[0004]
[Means for Solving the Problems]
The inventors of the present invention have arrived at the present invention as a result of intensive studies to achieve the above object.
That is, the present invention includes two or more active hydrogens derived from an ethylene oxide (EO) of a polyol and an alkylene oxide (AO) adduct (A) having 3 to 6 carbon atoms, a polyepoxy compound (B), and an amino group. It is a grout material composition for reinforcing steel joints, characterized in that it contains an amino compound (C) having the same.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the low molecular weight polyol ethylene oxide (EO) and C3-C6 alkylene oxide (AO) adduct (A) are obtained by adding (EO) and (AO) to a polyol.
Examples of the low molecular weight polyol include 2 to 8 or more polyhydric alcohols having 2 to 30 carbon atoms, 2 to 8 or more polyhydric phenols having 6 to 40 carbon atoms, and the like.
Examples of the divalent to octavalent polyhydric alcohol include ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,4-butanediol, 1,6-hexanediol, 3-methylpentanediol, diethylene glycol, neopentyl glycol, Dihydric alcohols such as 1,4-bis (hydroxymethyl) cyclohexane, 1,4-bis (hydroxyethyl) benzene, 2,2-bis (4,4′-hydroxycyclohexyl) propane; glycerin, trimethylolpropane, etc. Trivalent alcohol; pentaerythritol, diglycerin, α-methylglucoside, sorbitol, xylit, mannitol, dipentaerythritol, glucose, fructose, sucrose, etc. These alcohols are listed.
Examples of the polyhydric phenols include polyhydric phenols such as pyrogallol, catechol, and hydroquinone; bisphenols such as bisphenol A, bisphenol F, and bisphenol S.
[0006]
These low molecular polyols can be used alone or in combination of two or more. Of these low molecular polyols, polyhydric alcohols are preferred, more preferred are polyhydric alcohols having 2 to 4 valences and 2 to 10 carbon atoms, and particularly preferred are 2 to 3 valences having 3 to 6 carbon atoms. It is a polyhydric alcohol.
Examples of (AO) include propylene oxide (PO), 1,2-, 2,3- or 1,3-butylene oxide, 1,2-hexylene oxide, and preferably (PO).
[0007]
The addition form of (EO) and (AO) to the low molecular polyol may be random addition or block addition, but is preferably random addition. Random addition is preferable for the injection workability and thixotropy of the composition, and is less likely to sag after injection. The total addition mole of (EO) and (AO) to the low molecular weight polyol is 3 to 150, preferably 15 to 130.
The ratio of the number of added moles of (EO) and (AO) is preferably 1: 0.1 to 0.5, more preferably 1: 0.12 to 0.35, and particularly preferably 1: 0. 14-0.25. When the ratio of the added mole number of (AO) is 0.1 or more, the thixotropy of the composition is good, it is difficult to sag after injection, and the water resistance of the cured product is also good. If it is 0.5 or less, the composition has a low viscosity and good injection workability, and the composition has good thixotropy and is difficult to drip after injection.
[0008]
The adduct (A) of (EO) and (AO) of the low molecular polyol of the present invention can be produced by a conventionally known method. The reaction is carried out in one step or in multiple steps under normal pressure or pressure in the presence of a catalyst (an alkali catalyst, an amine catalyst, an acidic catalyst).
The number average molecular weight of (A) in the present invention is preferably 208 to 10,000, and particularly preferably 1,000 to 8,000.
[0009]
In the present invention, the polyepoxy compound (B) is not particularly limited as long as it has two or more epoxy groups in the molecule, and can be appropriately selected according to the use and purpose. Preferably, it has 2 to 6 epoxy groups in the molecule. The epoxy equivalent of the polyepoxide (molecular weight per epoxy group) is usually 65 to 1000, preferably 90 to 500. When the epoxy equivalent is 1000 or less, the crosslinked structure does not become loose, and the cured product has good physical properties such as water resistance, chemical resistance and mechanical strength. On the other hand, the epoxy equivalent is cured when the epoxy equivalent is 65 or more. A crosslinked structure with good water resistance, chemical resistance, mechanical strength, etc. of the product.
Examples of the polyepoxy compound (B) include the following (B1) to (B5).
[0010]
(B1) Glycidyl ether type
(I) Diglycidyl ethers of divalent phenols
Diglycidyl ethers of divalent phenols having 6 to 30 carbon atoms such as bisphenol F diglycidyl ether, bisphenol A diglycidyl ether, bisphenol B diglycidyl ether, bisphenol AD diglycidyl ether, Bisphenol S diglycidyl ether, halogenated bisphenol A diglycidyl ether, tetrachlorobisphenol A diglycidyl ether, catechin diglycidyl ether, resorcinol diglycidyl ether, hydroquinone diglycidyl ether 1,5-dihydroxynaphthalenediglycidyl ether, dihydroxybiphenyl diglycidyl ether, octachloro-4,4′-dihydroxybiphenyl diglycidyl ether, tetramethylbiphenyl diglycidyl ether, 9,9 Examples include '-bis (4-hydroxyphenyl) furorange glycidyl ether, diglycidyl ether obtained from the reaction of 2 mol of bisphenol A and 3 mol of epichlorohydrin.
[0011]
(Ii) polyglycidyl ethers of trivalent to hexavalent or higher polyhydric phenols
Polyglycidyl ethers of polyvalent phenols having 6 to 50 or more carbon atoms and a molecular weight of 250 to 5000, such as pyrogallol triglycidyl ether, dihydroxynaphthyl creso -Lutriglycidyl ether, tris (hydroxyphenyl) methane triglycidyl ether, dinaphthyl tri-triglycidyl ether, tetrakis (4-hydroxyphenyl) ethanetetraglycidyl ether, p-glycidylphenyldimethyltri- Rubisphenol A glycidyl ether, trismethyl-tert-butyl-butylhydroxymethane triglycidyl ether, 4,4′-oxybis (1,4-phenylethyl) tetracresol-glycidyl ether, 4,4′-oxybis ( 1,4-phenylethyl) Nylglycidyl ether, bis (dihydroxynaphthalene) tetraglycidyl ether, phenol or cresol novolac resin (molecular weight 400-5000) glycidyl ether, limonene phenol novolac resin (molecular weight 400-5000) glycidyl ether , Polyglycidyl ether of phenol (molecular weight 400-5000) obtained by the condensation reaction of phenol and glyoxal, glutaraldehyde, or formaldehyde, and the condensation reaction of resorcin and acetone And polyglycidyl ether of polyphenol having a molecular weight of 400 to 5000.
[0012]
(Iii) Diglycidyl ether of aliphatic divalent alcohol
Diglycidyl ethers of diols having 2 to 100 carbon atoms and a molecular weight of 150 to 5000 such as ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, tetramethylene glycol diglycidyl ether, 1,6- Hexanediol diglycidyl ether, polyethylene glycol (molecular weight 150-4000) diglycidyl ether, polypropylene glycol (molecular weight 180-5000) diglycidyl ether, polytetramethylene glycol (molecular weight 200-5000) diglycidyl ether And diglycidyl ether of adducts of alkylene oxide [ethylene oxide or propylene oxide (1 to 20 mol)] of bisphenol A, and the like.
(Iv) Tri- to hexa- or higher aliphatic alcohol polyglycidyl ether
Glycidyl ethers of polyvalent alcohols having 3 to 50 or more carbon atoms and a molecular weight of 92 to 10,000, such as trimethylolpropane triglycidyl ether, glycerin triglycidyl ether -Ter, pentaerythritol tetraglycidyl ether, sorbitol hexaglycidyl ether, poly (n = 2-5) glycerol polyglycidyl ether, and the like.
[0013]
(B2) Glycidyl ester type
A glycidyl ester of an aromatic polycarboxylic acid having 6 to 20 or more carbon atoms and a divalent to 6 or more carbon atoms, and an aliphatic having 6 to 20 or more carbon atoms and a divalent to 6 or more carbon atoms Or the glycidyl ester of alicyclic polycarboxylic acid is mentioned.
(I) Aromatic polycarboxylic acids such as glycidyl esters of phthalic acids include diglycidyl phthalate, diglycidyl isophthalate, diglycidyl terephthalate, and triglycidyl trimellitic acid;
(Ii) As the glycidyl ester of the aliphatic or alicyclic polycarboxylic acid, the aromatic nucleated water additive of the above-mentioned phenolic glycidyl ester, diglycidyl ester dimer, diglycidyl oxalate, diglycidyl male -(Co) polymer of diglycidyl succinate, diglycidyl glutarate, diglycidyl adipate, diglycidyl pimelate, glycidyl (meth) acrylate (the degree of polymerization is 2 for example) To 10), tricarbyl acid triglycidyl ester and the like.
[0014]
(B3) Glycidylamine type
Examples thereof include glycidylamines of aromatic amines having 6 to 20 or more carbon atoms and having 2 to 10 or more active hydrogen atoms, and glycidylamines of aliphatic, alicyclic or heterocyclic amines.
(I) As glycidylamines of aromatic amines, N, N-diglycidylaniline, N, N-diglycidyltoluidine, N, N, N ′, N′-tetraglycidyldiaminodiphenylmethane, N, N, N ′ , N′-tetraglycidyldiaminodiphenylsulfone, N, N, N ′, N′-tetraglycidyldiethyldiphenylmethane, N, N, O-triglycidylaminophenol, etc .;
(Ii) Examples of glycidylamines of aliphatic amines include N, N, N ′, N′-tetraglycidylxylylenediamine, N, N, N ′, N′-tetraglycidylhexamethylenediamine and the like;
(Iii) Examples of glycidylamines of alicyclic amines include hydrogenated compounds of N, N, N ′, N′-tetraglycidylxylylenediamine.
Examples of the heterocyclic amine glycidylamine include trisglycidylmelamine.
[0015]
(B4) Chain aliphatic epoxide
A chain aliphatic epoxide having 6 to 50 or more carbon atoms and having 2 to 6 or more valences, for example, epoxidized polybutadiene having an epoxy equivalent of 130 to 1,000 (molecular weight 90 to 2,500), epoxidized soybean oil (molecular weight) 130-2,500).
(B5) Alicyclic epoxide
Alicyclic epoxides having 6 to 50 or more carbon atoms, 90 to 2500 molecular weight, and 1 to 4 or more epoxy groups such as vinylcyclohexene dioxide, limonene dioxide, dicyclopentadiene dioxide, bis (2 , 3-epoxycyclopentyl) ether, ethylene glycol bisepoxy dicyclopentyl ether, 3,4 epoxy-6-methylcyclohexylmethyl 3 ', 4'-epoxy-6'-methylcyclohexanecarboxylate, bis (3,4-epoxy-6-methylcyclohexylmethyl) adipate and bis (3,4-epoxy-6-methylcyclohexylmethyl) butylamine. Moreover, the nuclear hydrogenation thing of the epoxy compound of the said phenols is also included.
Of these, the glycidyl ether type (B1) is preferred. Of (B1), preferred are divalent phenols.
[0016]
The amino compound (C) of the present invention is not particularly limited as long as it is a compound having two or more active hydrogens derived from an amino group in the molecule, and can be appropriately selected according to use and purpose. Preferred are compounds having 2 to 10 active hydrogens derived from amino groups in the molecule, and more preferred are compounds having 3 to 6 active hydrogens. The active hydrogen equivalent (molecular weight per active hydrogen) of (C) is usually 15 to 500, preferably 20 to 200. When the active hydrogen equivalent is 500 or less, the crosslinked structure does not become loose, and the physical properties such as adhesion and durability of the cured product are good. When the active hydrogen equivalent is 15 or more, the cured product has good physical properties such as adhesiveness, durability, and chemical resistance.
[0017]
Examples of the amino compound (C) include the following (C1) to (C8).
(C1) aliphatic polyamines (2-18 carbon atoms, 2-7 functional groups, molecular weight 60-500);
(I) Aliphatic polyamine {C2-C6 alkylenediamine (ethylenediamine, propylenediamine, trimethylenediamine, tetramethylenediamine, hexamethylenediamine, etc.), polyalkylene (C2-6) polyamine [diethylenetriamine, iminobis Propylamine, bis (hexamethylene) triamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, etc.]};
(Ii) These alkyl (carbon number 1 to 4) or hydroxyalkyl (carbon number 2 to 4) substituents [dialkyl (carbon number 1 to 3) aminopropylamine, trimethylhexamethylenediamine, aminoethylethanolamine, 2 , 5-dimethyl-2,5-hexamethylenediamine, methyliminobispropylamine, etc.];
(Iii) Alicyclic or heterocyclic-containing aliphatic polyamine [3,9-bis (3-aminopropyl) -2,4,8,10-tetraoxaspiro [5,5] undecane, etc.];
(Iv) Aromatic ring-containing aliphatic amines (8 to 15 carbon atoms) (xylylenediamine, tetrachloro-p-xylylenediamine, etc.);
[0018]
(C2) alicyclic polyamine (4 to 15 carbon atoms, 2 to 3 functional groups); 1,3-diaminocyclohexane, isophoronediamine, mensendiamine, 4,4'-methylenedicyclohexanediamine (hydrogenated methylenedianiline) )etc;
(C3) Heterocyclic polyamine (carbon number 4-15, functional group number 2-3): piperazine, N-aminoethylpiperazine, 1,4-diaminoethylpiperazine, 1,4bis (2-amino-2-methylpropyl) ) Piperazine etc .;
(C4) Polyamide polyamine: obtained by condensation of dicarboxylic acid (dimer acid, etc.) and excess (more than 2 moles per mole of acid) polyamines (the above-mentioned alkylene diamine, polyalkylene polyamine, etc. having 2 to 7 functional groups). Polyamide polyamines (number average molecular weight 200-1000) and the like;
(C5) polyether polyamine: hydride (molecular weight 100 to 1000) of cyanoethylated polyether polyol (the aforementioned polyalkylene glycol and the like);
(C6) Epoxy-added polyamine: an epoxy obtained by adding 1 mol of an epoxy compound (the above polyepoxide (B1) and monoepoxide (b)) to 1 to 30 mol of a polyamine (the above alkylenediamine, polyalkylenepolyamine, etc.) Addition polyamine (molecular weight 100-1000) and the like;
[0019]
(C7) Cyanoethylated polyamine: cyanoethylated polyamine obtained by addition reaction of acrylonitrile and polyamines (the above alkylenediamine, polyalkylenepolyamine, etc.), (biscyanoethyldiethylenetriamine, etc.) (molecular weight 100-500), etc .;
(C8) Other polyamine compounds: (i) hydrazines (hydrazine, monoalkylhydrazine, etc.); (ii) dihydrazides (succinic acid dihydrazide, adipic acid dihydrazide, isophthalic acid dihydrazide, terephthalic acid dihydrazide, etc.); (iii) guanidine (Butyl guanidine, 1-cyanoguanidine, etc.); (iv) dicyandiamide, etc .; and mixtures of two or more thereof.
Of the above (C1) to (C8), (C1), (C2), (C3), (C4) and (C6) are preferable, and (C1) is particularly preferable.
[0020]
In the grout material composition for reinforcing steel joints of the present invention, the blending ratio of (A) :( B) :( C) is preferably when the total of (A) + (B) + (C) is 100 parts by mass. Is 1-10: 10-80: 5-60 parts by mass, more preferably 1-5: 15-80: 5-50 parts by mass, particularly preferably 1-3: 20-80: 5-40. Part by mass. When (A) is 1 part by mass or more, the injection workability is good, and when it is 10 parts by mass or less, the crosslinked structure becomes dense and the cured product has good physical properties. When (B) is 10 parts by mass or more, the water resistance is good, and when it is 80 parts by mass or less, the crosslinked structure becomes dense and the cured product properties are good. When (C) is 5 parts by mass or more, the adhesion to the reinforcing bars is good, and when it is 60 parts by mass or less, amine brushing does not occur.
[0021]
In the grout material composition for reinforcing steel joints of the present invention, the amino compound (C) is an essential component as a curing agent, but a basic compound (E) can be further contained as a curing accelerator if necessary.
Examples of basic compounds (E) include tertiary amino compounds (E1), alkali compounds (E2) such as sodium methylate, caseisoda, caustic potash, lithium carbonate, and Lewis basic compounds such as triethylphosphine and triphenylphosphine. (E3) etc. are mentioned. Of these, the tertiary amino compound (E1) is preferred.
[0022]
The tertiary amino compound (E1) preferred as the above (E) is not particularly limited as long as it has a tertiary amino group in the molecule. Examples thereof include the following (E1-1) to (E1-3). You can give each.
(E1-1) Aliphatic tertiary amine: trimethylamine, triethylamine, dimethylcyclohexylamine, dimethylbenzylamine, 1,3-dimethylimidazolidinone, 1,2-dimethylimidazole, tetraethylmethylenediamine, tetramethylpropane-1 , 3-diamine, tetramethylhexane-1,6-diamine, pentamethyldiethylenetriamine, pentamethyldipropylenetriamine, tetramethylguanidine, dimethylpiperazine, N-methyl-N ′-(2-dimethylamino) -ethylpiperazine, N -Methylmorpholine, N- (N ', N'-dimethylaminoethyl) morpholine, dimethylaminoethanol, dimethylaminoethoxyethanol, N, N, N'-trimethylaminoethyl-ethanolamine, N-methyl -N '-(2-hydroxyethyl) morpholine, bis (2-dimethylaminoethyl) ether, ethylene glycol (3-dimethyl) aminopropylether, etc.
[0023]
(E1-2) Phenolic nucleus-containing aliphatic tertiary amine: N, N-dimethylaminomethylphenol (commonly known as “DMP-10”), Tris (N, N-dimethylaminomethylphenol (commonly known as “DMP-10”) DMP-30 ") etc.
(E1-3) Nitrogen-containing heterocyclic compound 1,8-diazabicyclo (5,4,0) -undecene-7 (common name “DBU”), 1,5-diazabicyclo (4,3,0) -nonene-5 ( (Commonly called “DBN”), 6-dibutylamino-1,8-diazabicyclo (5,4,0) -undecene-7 (commonly called “DBA-DBU”), triethylenediamine, hexamethylenetetramine and the like.
The type and amount of the tertiary amino compound (E1) may be appropriately selected according to the curing rate to be obtained and the pot life.
[0024]
The grout material composition for reinforcing steel joints of the present invention may further comprise (1) an adhesion-imparting agent such as a silane coupling agent and a titanium coupling agent, (2) hindered amines, hydroquinones, hinders, if necessary. Antioxidants such as dophenols and sulfur-containing compounds, (3) UV absorbers such as benzophenones, benzotriazoles, salicylic acid esters, metal complex salts, (4) metal soaps, heavy metals (for example, zinc, Inorganic and organic salts of tin, lead, cadmium, etc., stabilizers such as organic tin compounds, (5) phthalate esters, phosphate esters, fatty acid esters, epoxidized soybean oil, castor oil, liquid paraffin alkyl polycyclic aromatic carbonization Plasticizers such as hydrogen, (6) waxes such as paraffin wax, microcrystalline wax, polymer wax, beeswax, whale wax low molecular weight polyolefin, (7) benzine Non-reactive diluents such as alcohol, tar, pitumen, (8) reactive diluents such as low molecular weight aliphatic glycidyl ether, aromatic monoglycidyl ether, (9) calcium carbonate, Kaolin, talc, mica, bentonite, clay, sericite, asbestos, glass fiber powder, carbon fiber powder, aramid fiber powder, nylon fiber powder, acrylic fiber powder, glass fiber powder, glass balloon, shirasu balloon, coal powder , Fillers such as acrylic resin powder, phenol resin powder, metal powder, ceramic powder, zeolite, and salt powder, (10) deodorizers such as activated carbon, zeolite, silica sol, silica gel (11) carbon black, Pigments or dyes such as titanium oxide, red iron oxide, red lead, para red, and bitumen, (12) solvents such as ethyl acetate, toluene, alcohols, ethers, ketones, (13) foaming agents , (14) Antifoaming agent, (15) Dehydrating agent, (16) Antistatic agent, (17) Antibacterial agent, (18) Antifungal agent, (19) Viscosity modifier, (20) Fragrance, (21) Difficult A flame retardant etc. can be added.
[0025]
In the grout material composition for reinforcing steel joints of the present invention, (A) does not react with (B) and (C) at room temperature, so the storage and use forms of each component at room temperature or below are the following (i) and ( ii) is exemplified.
(I) (A), (B) and (C) are stored in the form of three independent liquids, and the three components are mixed and cured at the time of use. (The basic compound (E), which is an optional component, is stored alone as the fourth component, and can be mixed with other components at the time of use or added to the component (A) and / or (C). (It can also be saved in the form.)
(Ii) The mixture of (A) and (B) and the mixture of (A) and (C) are stored in two separate liquid forms, and the two components are mixed and cured at the time of use. [The basic component (E), which is an optional component, can be stored alone as the third component, and can be mixed with other components at the time of use, or can be stored in the form added in (C)] . ]
[0026]
The grout material composition for reinforcing steel joints of the present invention is mixed with (A), (B), (C) and other blends using an ordinary mixer such as a universal mixer. (C) is blended during normal use. The grout material composition has a viscosity at 25 ° C. of preferably 30 to 80 Pa · s, particularly preferably 40 to 70 Pa · s from the viewpoint of pouring workability, curability and adhesiveness.
[0027]
The method for injecting the grout material composition for reinforcing steel joints of the present invention is not particularly limited, and conventionally known injection means can be employed. That is, after blending (A), (B), (C) and others, it is filled into a coating gun and injected from a hole near the center of the coupler before the epoxy resin begins to cure. Using the apparatus shown in Kaihei 9-13675, the mixture of (A) and (B) and the two independent liquids of (C) are filled into the supply pipe separately and injected while kneading with a mixer at the tip. May be. The grouting material composition for reinforcing steel joints of the present invention has good injection workability and further has good thixotropy and is difficult to sag after injection.
The conditions for curing the grout material composition may be conventionally known conditions, and the temperature is preferably 5 to 40 ° C, particularly preferably 10 to 35 ° C.
The cured product has excellent physical properties such as adhesiveness, particularly adhesion to iron, durability, particularly durability as a joint, and chemical resistance, particularly chemical resistance such as alkali resistance.
The grout material composition for reinforcing steel joints of the present invention is a reinforcing bar for a concrete structure.
It is useful as a grouting material for reinforcing steel joints.
[0028]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to these Examples. The part in an Example and a comparative example represents a mass part.
[0029]
Moreover, the test method of the evaluation item in an Example is as follows.
[viscosity]
After mixing the grout material adjusted to 25 ° C. into a container so as to be 100 g, it is sufficiently stirred with a glass rod for 2 minutes. The viscosity was measured according to JIS K7117 with a BH type viscometer (rotation speed: 20 rpm, No. 7 spindle).
[SVI value]
After mixing the grout material adjusted to 25 ° C. into a container so as to be 100 g, it is sufficiently stirred with a glass rod for 2 minutes. Using a BH viscometer (No. 7 spindle), the viscosity at 2 rpm and the viscosity at 20 rpm were measured according to JIS K7117, and the SVI value was calculated by the following formula (1).
S = η1 / η2 (1)
S: SVI value
η1: Viscosity at 2 rpm
η2: viscosity at a rotation speed of 20 rpm
[0030]
[Tensile strength]
The grouting material before curing is formed into a plate shape having a thickness of about 2 mm, taking care not to cause foaming, and is cured at 25 ° C. for 5 days. A No. 1 test piece having a thickness of about 2 mm after curing was measured according to JIS K7113 at a test speed of 1 mm / min.
[Compressive yield strength, compressive elastic modulus]
The grout material before curing is mixed into a container so as to be 150 g after mixing, and stirred with a glass rod for 2 minutes. This is formed into a plate having a thickness of 10 mm, taking care not to cause foaming, and is cured at 25 ° C. for 5 days. After curing, a rectangular parallelepiped of 10.4 × 10.4 × 30.0 (mm) was measured according to JIS K7208 at a test speed of 2 mm / min.
[Injection time]
The temperature of the grout material filled in the supply pipe is adjusted to 25 ° C. and injected into the reinforcing bar joint (size: D29) using an extruder. Measure the time from the beginning of injection until it overflows from the reinforcing bar joint.
[Sauce]
The presence or absence of sagging is visually confirmed from the reinforcing bar joint in which the grout material is injected.
[0031]
Production Example 1
147 parts of propylene glycol and 0.76 parts of potassium hydroxide as a catalyst were charged into a stirring autoclave, and a mixture of 682 parts of ethylene oxide and 171 parts of propylene oxide was blown into the mixture and reacted at 110 ° C. It was. After aging at 130 ° C., it was treated with a magnesium oxide-based adsorbent (manufactured by Kyowa Chemical Industry Co., Ltd .: “KYOWARD 600”) to remove the catalyst to obtain an alkylene oxide adduct (A-1). . This product had a hydroxyl value of 28 and a viscosity of 700 mPa · s / 25 ° C.
Production Example 2
A stirred autoclave was charged with 146 parts of propylene glycol and 0.7 parts of potassium hydroxide as a catalyst, and a mixture of 597 parts of ethylene oxide and 256 parts of propylene oxide was blown and reacted at 110 ° C. After aging at 130 ° C., it was treated with a magnesium oxide adsorbent (manufactured by Kyowa Chemical Industry Co., Ltd .: “Kyoword 600”) to remove the catalyst to obtain an alkylene oxide adduct (A-2). . This product had a hydroxyl value of 27 and a viscosity of 600 mPa · s / 25 ° C.
[0032]
Examples 1-3, Comparative Examples 1-3
Under an atmosphere of 25 ° C., each component was mixed and stirred and injected at the blending amounts shown in Table 2, and a performance evaluation test as a grout material composition for reinforcing steel joints was performed by the above test method. The following were used as the compound (B) having two or more epoxy groups in the molecule.
Epicoat 828 (Bisphenol A diglycidyl ether manufactured by Japan Epoxy Resin, Epoxy Equivalent 190, Viscosity 11 Pa · s) and Epiol B (Butyl Glycidyl Ether manufactured by Nippon Oil & Fats, Epoxy Equivalent 135, Viscosity 1 mPa · s)
The following was used as the amino compound (C) having two or more active hydrogens derived from amino groups in the molecule.
Pentaethylenehexamine (manufactured by Tosoh Corporation, active hydrogen equivalent 29, viscosity 70 mPa · s)
The following were used as fillers.
Whiteon SB: Calcium carbonate manufactured by Shiraishi Calcium
Moreover, the following were used as a thixotropic agent for imparting comparative examples.
Organite T (Organic bentonite manufactured by Nippon Organic Clay Co., Ltd.)
[0033]
[Table 1]
[0034]
【The invention's effect】
The grout material composition for reinforcing steel joints of the present invention,
(1) Good injection workability
(2) Even after being injected into the reinforcing bar joint, it is very difficult to sag.
(3) Excellent strength of cured product
There are effects such as.
Claims (4)
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| JP2001039595A JP4004234B2 (en) | 2001-02-16 | 2001-02-16 | Grout material composition for reinforcing steel joints |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001039595A JP4004234B2 (en) | 2001-02-16 | 2001-02-16 | Grout material composition for reinforcing steel joints |
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| JP2002241755A JP2002241755A (en) | 2002-08-28 |
| JP4004234B2 true JP4004234B2 (en) | 2007-11-07 |
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| JP4227080B2 (en) * | 2004-07-05 | 2009-02-18 | 三洋化成工業株式会社 | Method of pouring grout material into rebar joint, grout material and connecting rebar |
| JP2014028931A (en) * | 2012-06-26 | 2014-02-13 | Sanyo Chem Ind Ltd | Grout material composition for reinforcing steel bar joint |
| JP5964276B2 (en) * | 2012-07-27 | 2016-08-03 | 三洋化成工業株式会社 | Grout composition for reinforcing steel joints |
| JP6301761B2 (en) * | 2013-07-19 | 2018-03-28 | 三洋化成工業株式会社 | Epoxy resin composition |
| JP6738223B2 (en) * | 2015-09-09 | 2020-08-12 | 三洋化成工業株式会社 | Grout material composition for reinforcing bar joint |
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