WO2010076097A1 - Dichtungspaste - Google Patents
Dichtungspaste Download PDFInfo
- Publication number
- WO2010076097A1 WO2010076097A1 PCT/EP2009/065792 EP2009065792W WO2010076097A1 WO 2010076097 A1 WO2010076097 A1 WO 2010076097A1 EP 2009065792 W EP2009065792 W EP 2009065792W WO 2010076097 A1 WO2010076097 A1 WO 2010076097A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing
- water
- mixture according
- mixture
- alcohol
- Prior art date
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 52
- 239000000203 mixture Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000440 bentonite Substances 0.000 claims abstract description 20
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 20
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 20
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 8
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000007942 carboxylates Chemical class 0.000 claims abstract description 7
- 239000000454 talc Substances 0.000 claims abstract description 6
- 229910052623 talc Inorganic materials 0.000 claims abstract description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 4
- -1 alkali metal salt Chemical class 0.000 claims description 29
- 239000000835 fiber Substances 0.000 claims description 28
- 229910052615 phyllosilicate Inorganic materials 0.000 claims description 24
- 229910052783 alkali metal Inorganic materials 0.000 claims description 17
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 14
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 5
- 229910052900 illite Inorganic materials 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052622 kaolinite Inorganic materials 0.000 claims description 5
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 5
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 claims description 5
- 239000004113 Sepiolite Substances 0.000 claims description 4
- 229910052624 sepiolite Inorganic materials 0.000 claims description 4
- 235000019355 sepiolite Nutrition 0.000 claims description 4
- 150000001447 alkali salts Chemical class 0.000 claims description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims 1
- 230000007704 transition Effects 0.000 abstract description 5
- 159000000011 group IA salts Chemical class 0.000 abstract 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 15
- 150000001298 alcohols Chemical class 0.000 description 15
- 239000000565 sealant Substances 0.000 description 14
- 150000003839 salts Chemical class 0.000 description 11
- 230000035515 penetration Effects 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 235000019198 oils Nutrition 0.000 description 5
- 239000012209 synthetic fiber Substances 0.000 description 5
- 229920002994 synthetic fiber Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 150000002334 glycols Chemical class 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N iso-butyl alcohol Natural products CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 2
- JXKPEJDQGNYQSM-UHFFFAOYSA-M sodium propionate Chemical compound [Na+].CCC([O-])=O JXKPEJDQGNYQSM-UHFFFAOYSA-M 0.000 description 2
- 229960003212 sodium propionate Drugs 0.000 description 2
- 235000010334 sodium propionate Nutrition 0.000 description 2
- 239000004324 sodium propionate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229940083957 1,2-butanediol Drugs 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 241001595840 Margarites Species 0.000 description 1
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical class CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical class OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- BMRWNKZVCUKKSR-UHFFFAOYSA-N butane-1,2-diol Chemical compound CCC(O)CO BMRWNKZVCUKKSR-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 125000005534 decanoate group Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001212 derivatisation Methods 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-OWOJBTEDSA-L fumarate(2-) Chemical class [O-]C(=O)\C=C\C([O-])=O VZCYOOQTPOCHFL-OWOJBTEDSA-L 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000008172 hydrogenated vegetable oil Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
- 229910052630 margarite Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000003890 succinate salts Chemical class 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 150000003892 tartrate salts Chemical class 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000009736 wetting 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/001—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing unburned clay
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- the present invention relates to mixtures, preferably sealing pastes, particularly preferably tailstock sealing pastes and the use of mixtures according to the invention for sealing components and / or construction machines, in particular for temporarily sealing the transition between the tail of a tunnel boring machine and the pipe lining or segmental lining of the tunnel safety.
- EP-A-1391566 discloses a method of making a sealant layer wherein pressure swellable bentonite is placed in front of a part of a structure to be sealed.
- the present invention in the field of tunneling technology, especially in tunnel bores by means of a well-designed tunnel boring machine (TBM).
- TBM tunnel boring machine
- the gap between the shield of the TBM and the pipe lining or segment lining of the tunnel protection must be sealed with a sealing paste during the tunneling and installation of the tunnel safety device.
- the sealing paste is usually injected into two annular intermediate spaces, which are fixed by mostly three annular steel brushes at the end of the shield tail of the TBM. Further details on the use of shielding-tailing pastes in tunneling in connection with tunnel boring machines can also be found in DE-A-102006056263.
- Tail seal greases based on synthetic fats and oils based on the mineral oil mineral are also known. Because of their poor environmental performance, they are less advantageous in applications where the likelihood of contact with groundwater is high.
- Specific applications of more environmentally friendly sealants (especially with bentonite) in the field of tunnel boring machine technology (TBM technology) are known in particular for sealing the shield tail of a TBM, from the documents DE-A-102006056263, WO01 / 73265 and EP-A-0607053.
- DE-A-102006056263 describes in this context mixtures of phyllosilicates, in particular bentonite, stabilizers, water, fibers, fillers and a vegetable oil. Alcohol is also mentioned, but it is nowhere mentioned or implied which alcohols are suitable for this, or what task and what effects could be ascribed to the alcohols.
- WO01 / 73265 a sealing composition is described which can be used especially in emergencies to prevent the penetration of water into the shield tail.
- the composition of the sealing pastes is similar to that of DE-A-102006056263. Alcohols are not mentioned with the exception of polyvinyl alcohol.
- EP-A-0607053 describes sealants containing mica, water, fibers and hydrogenated vegetable oil.
- the sealing pastes of the three abovementioned publications in the field of TBM technology are in need of further improvement with regard to the sealing performance of the materials described therein.
- the sealing materials should be more resistant to the penetration of water, in particular of water under pressure, from the environment of the tunnel boring machine (groundwater, etc.).
- the processability in the production of the masses (kneadability) and in particular the pumpability required for use on the construction site should not deteriorate, but should be improved as far as possible.
- the object is thus to eliminate or reduce the disadvantages of the prior art described above.
- the goal is to achieve an improvement in the sealing properties while at the same time being easy to process, to achieve good economic efficiency, environmental compatibility and good product yield.
- a mixture preferably a sealing paste, more preferably a sealant sealant for sealing, preferably against the ingress of water, the transition between shield tail and the pipe lining or tubing lining of the tunnel safety, containing at least one layered silicate, preferably selected from the group bentonite, talc, montmorillonite, kaolinite, illite and / or sepiolite, more preferably bentonite, particularly preferably in an amount of 23 wt .-% to 45% by weight, an alkali metal salt and / or ammonium salt, preferably a carboxylate and at least an alcohol with 1 to 5 hydroxyl groups.
- a sealing paste more preferably a sealant sealant for sealing, preferably against the ingress of water, the transition between shield tail and the pipe lining or tubing lining of the tunnel safety
- at least one layered silicate preferably selected from the group bentonite, talc, montmorillonite, kaolinite, illite and / or se
- the mixture preferably contains branched or unbranched aliphatic alcohols having 1 to 5 hydroxyl groups, more preferably 1 to 3 and most preferably 1 to 2 hydroxyl groups.
- the aliphatic alcohols preferably have 2 to 24 carbon atoms, more preferably 2 to 7 carbon atoms.
- the aliphatic alcohols can each branched or unbranched. Ethylene glycol (HO-CH 2 CH 2 -OH) and propylene glycol (HO-CH MeCH 2 -OH) are most preferred.
- polyalkylene glycols having a molecular weight of up to 10,000 Da more preferably polyalkylene glycols having a molecular weight of up to 1,600 Da, particularly preferably polyalkylene glycols having a molecular weight of up to 600 Da.
- the alkali metal salts and / or ammonium salts and at least one alcohol having 1 to 5 hydroxyl groups together with the phyllosilicates, preferably phyllosilicates in an amount of 23 to 45 wt .-%, preferably as bentonite, the above-mentioned disadvantages of the prior the technique can be avoided. Especially with continued good processing properties and good pumpability, the sealing ability could be improved.
- Phyllosilicates are known as sealants because of their high swelling capacity. Surprisingly, it has now been found that the sealing performance and at the same time the processability, in particular the pumpability, of sealants based on phyllosilicates can be increased by the use of the alcohols and salts according to the invention. These synergistic effects of the alcohols and salts are particularly pronounced at high levels of phyllosilicates in the mixtures according to the invention, or a high ratio of phyllosilicate to water. In the text below and in the claims this will be further described in detail.
- the layered silicates of the invention are not particularly limited and selected from preferably bentonite, talc, montmorillonite, illite, kaolinite, sepiolite, mica and / or members of the mica group such as margarite and / or muscovite.
- bentonite, talc, montmorillonite, illite, kaolinite and / or sepiolite are particularly preferred.
- Particularly preferred are bentonite, talc, montmorillonite, illite and / or kaolinite.
- Most preferred is bentonite.
- the phyllosilicates can be used individually or as mixtures. Their environmental compatibility as a natural inorganic material is undisputed.
- Phyllosilicates are characterized by their good sealing ability, in order to prevent in particular the penetration of water and other undesirable substances (earth, mortar, sand, stones ).
- Phyllosilicates, especially bentonite swell to some degree upon contact with or mixing with water. This effect is particularly pronounced at a relatively high weight ratio of phyllosilicate to water.
- Particularly preferred is a weight ratio of phyllosilicate to water, or preferably of bentonite to water of 0.3 to 1.1, particularly preferably from 0.5 to 0.6.
- Phyllosilicates are largely water-insoluble materials that form relatively viscous masses with water, especially with small amounts of water. This is especially the case with bentonite.
- the reduction of the amount of water results in a deterioration of the processability of the pastes, especially when working without further additives according to the invention.
- the blends described in the three aforementioned prior art references (especially when using a relatively high level of layered silicate), inter alia when using bentonite, are very rigid and therefore not readily processable and not pumpable.
- more than 23% by weight of phyllosilicate or bentonite is used, in particular when more than 35% by weight, based on the total mixture, is used, these problems occur.
- the mixture also contains an alkali metal salt and / or ammonium salt, preferably an alkali metal salt, particularly preferably a sodium salt.
- an alkali metal salt particularly preferably a sodium salt.
- the salts LiCl, NaCl, KCl, NH 4 Cl, LiBr, NaBr, ammonium sulfate and / or KBr can be used.
- inorganic alkali metal salts and / or ammonium salts particular preference is given to NaCl, KCl and / or NH 4 Cl and, in particular, NaCl and KCl are preferred.
- the alkali and / or ammonium salt is a carboxylate, preferably a non-aromatic carboxylate, more preferably a carboxylate having 1 to 5 carbon atoms.
- an alkali metal propionate in particular sodium propionate.
- suitable for use are, for example, formates, acetates, and / or caprates, in each case preferably as alkali metal salt and particularly preferably as sodium salt.
- dicarboxylate compounds preferably those having two to five carbon atoms, for example maleates, fumarates, glyoxalates, succinates, adipates and / or tartrates.
- the corresponding alkali metal salt compounds, in particular the sodium salts are preferred.
- Monocarboxylates are preferred over dicarboxylates.
- the alkali metal salts and / or ammonium salts are preferably contained in the mixtures in an amount of from 0.1 to 15% by weight, particularly preferably from 2 to 4% by weight.
- the data are in each case based on the total weight of the mixture.
- the alkali metal salts and / or ammonium salts can be used alone or mixtures of these salts can be used.
- the alkali metal salts and / or ammonium salts bring about improved processability and increase in pumpability compared to comparative mixtures without this additive. Without the addition of the salts according to the invention, the mixtures would be too stiff.
- alcohols having from 1 to 5 hydroxyl groups particularly preferably aliphatic alcohols having from 1 to 5 hydroxyl groups, are contained in the mixtures.
- the aliphatic part may be both branched and unbranched. Particular preference is given to aliphatic alcohols having 1 to 3 hydroxyl groups, preferably 1 to 2 hydroxyl groups and a number of 2 to 24 carbon atoms, more preferably 2 to 7 carbon atoms.
- Ethylene glycol (HO-CH 2 CH 2 -OH) and propylene glycol (HO-CH MeCH 2 -OH) are most preferred.
- alcohols having a higher number of hydroxyl groups sugars such as glucose may be mentioned.
- polyalkylene glycols are used. Preference is given to polyalkylene glycols having a molecular mass of up to 10,000 Da, more preferably polyalkylene glycols having a molecular mass of up to 1,600 Da, particularly preferably polyalkylene glycols having a molecular mass of up to 600 Da.
- polyethylene glycols, polypropylene glycols, and / or polybutylene glycols may be composed of one type of alkylene glycol or more and may be present both in the form of block polymers and in the form of copolymers having a more or less random distribution of the monomer units.
- Polyethylene glycols, or in the case of mixed polyalkylene glycols, those polymers having a high ethylene glycol content, preferably greater than 90% by weight, are preferred in order to ensure adequate solubility in water.
- Monohydroxypolyalkylene glycols which can be obtained, for example, by derivatization of one of the hydroxy groups, can also be used.
- the alcohols in the mixture are polyalkylene glycols having a molecular weight of up to 1,600, more preferably 600 Da.
- glycols are used.
- ethylene glycol and propylene glycol are preferred.
- the abovementioned alcohols are in each case preferably present in an amount of from 1.0 to 25% by weight, particularly preferably from 1 to 5% by weight, in the mixtures.
- the abovementioned alcohols according to the invention can be used alone or as a corresponding mixture of alcohols. Aliphatic alcohols having 1 to 5 hydroxyl groups are preferred over the polyalkylene glycols.
- the alcohols according to the invention also bring about improved processability or pumpability with better sealing. Surprisingly, it has been found that synergistic effects can be achieved when the alcohols and salts are used together. Particularly advantageously, as mentioned above, the sealing ability and at the same time the processability or pumpability can be improved. This effect was surprising and so unforeseeable.
- the mixture contains from 23 to 45% by weight of phyllosilicate, preferably bentonite,
- alkali metal salt and / or ammonium salt preferably sodium salt
- alkali metal propionates in particular sodium propionate, are suitable as the carboxylate.
- the fibers cause the mechanical stability and water resistance of the mixtures to be increased.
- the fibers are preferably in a weight proportion of greater than 0 to 25 Wt .-%, particularly preferably 3 to 10 wt .-%, contained.
- the fibers are fibers with a length of greater than 0 to 9 mm, particularly preferably greater than 0 to 6 mm.
- fiber blends of natural fibers especially cellulosic fibers and synthetic fibers, especially polyamide, polypropylene, and / or polyethylene fibers.
- Blends of natural fibers and synthetic fibers, especially blends of long and short fibers have the advantage of increasing the pressure resistance to water.
- mixtures are particularly advantageous which contain at least two different lengths of fiber lengths, more preferably at the same time present fibers with a length of less than 1 mm and fibers with a length greater than 1 mm.
- Particularly preferred are mixtures of natural fibers and synthetic fibers, wherein the natural fibers are preferably smaller than 1 mm and the synthetic fibers are preferably larger than 1 mm and smaller than 9 mm.
- Mixtures which contain fibers of different lengths, in particular mixtures which preferably have a broad distribution over the entire preferred fiber length range of greater than 0 to 9 mm, are preferred precisely because these special fiber mixtures are particularly well suited for sealing against running water under pressure.
- the proportion of preferably natural fibers having a length of less than 1 mm is preferably in the range of 50 to 90 wt .-% and particularly preferably in the range of 60 to 80 wt .-%, each based on the total weight of the fibers.
- the invention also relates to the use of the mixture (s) according to the invention for preferably temporary sealing of components and / or construction machines, particularly preferably for temporarily sealing the transition between the tail shield and the pipe lining or segment lining of the tunnel safety.
- the problems described at the outset of the sealing pastes known from the prior art, in particular tailstock sealing pastes, are largely avoided when using the mixtures according to the invention, in particular the preferred mixtures according to one of the dependent claims.
- So-called seepage walls should be mentioned as an example for sealing components, which should preferably protect temporarily (eg during the execution of other construction works) from the ingress of water. Also, leaky pipes can be sealed first by the mixtures according to the invention until a renovation of the affected (water) line can be done. A variety of other (sealing) applications of a similar nature is conceivable.
- An example of the sealing of a construction machine is the preferably temporary sealing of the transition between the shield tail of a tunnel boring machine and the pipe lining or segmental lining of the tunnel safety.
- the preparation of the sealing compounds was carried out in a conventional mixer for pastes or high-viscosity substances. For this purpose, all ingredients are stirred until a homogeneous mass.
- the penetration test (cone penetration test) was performed according to ASTM D217-02. This test serves to determine the processability or pumpability of the sealants. A value of 150/10 mm to 300 / 10mm guarantees a good processability and pumpability of the masses. The results of the penetration test for the sealants are summarized in Table 1.
- the water pressure test is used to determine the sealing capacity of the sealing pastes against pressurized water. This test is performed according to the Matsumara test known in the art. The sealant to be tested is applied to a metal grid of 0.5 mm grid spacing and the test is carried out in a corresponding apparatus at a pressure of 8 bar (in a modification of the Matsumara test). The test is passed if no water penetrates through the sealant for a period of five minutes.
- Table 1 The results of the water pressure test for the sealants are also summarized in Table 1.
- V4 shows that, especially with high phyllosilicate fractions and relatively little water, the two tests are not passed, since the sealing compounds are too stiff.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
- Gasket Seals (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CN200980151390XA CN102257090A (zh) | 2008-12-17 | 2009-11-25 | 密封膏 |
JP2011541279A JP2012512294A (ja) | 2008-12-17 | 2009-11-25 | シーリングペースト |
US13/139,795 US20120037042A1 (en) | 2008-12-17 | 2009-11-25 | Sealing Paste |
EP09756518A EP2379667A1 (de) | 2008-12-17 | 2009-11-25 | Dichtungspaste |
AU2009335191A AU2009335191A1 (en) | 2008-12-17 | 2009-11-25 | Sealing paste |
CA 2747086 CA2747086A1 (en) | 2008-12-17 | 2009-11-25 | Sealing paste |
Applications Claiming Priority (2)
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EP08171950.2 | 2008-12-17 | ||
EP08171950 | 2008-12-17 |
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WO2010076097A1 true WO2010076097A1 (de) | 2010-07-08 |
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ID=41718956
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PCT/EP2009/065792 WO2010076097A1 (de) | 2008-12-17 | 2009-11-25 | Dichtungspaste |
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US (1) | US20120037042A1 (de) |
EP (1) | EP2379667A1 (de) |
JP (1) | JP2012512294A (de) |
CN (1) | CN102257090A (de) |
AR (1) | AR074789A1 (de) |
AU (1) | AU2009335191A1 (de) |
CA (1) | CA2747086A1 (de) |
CL (1) | CL2011001369A1 (de) |
PE (1) | PE20120391A1 (de) |
TW (1) | TW201030132A (de) |
WO (1) | WO2010076097A1 (de) |
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CN114874825A (zh) * | 2021-06-26 | 2022-08-09 | 上海鸿栩化工科技有限公司 | 一种盾尾密封油脂的生产工艺及其使用方法 |
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JP2002179549A (ja) * | 2000-12-12 | 2002-06-26 | Kishohin Kagaku Kaiho Kenkyusho:Kk | 皮膚外用剤 |
CN113956913B (zh) * | 2021-10-29 | 2022-07-26 | 中铁建华南建设(广州)高科技产业有限公司 | 水基盾尾密封脂及其制备方法和应用 |
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GB432571A (en) * | 1934-01-30 | 1935-07-30 | Crosse & Blackwell Ltd | Improvements in and relating to sealing compositions for cans, jars and other containers |
DE3912765A1 (de) * | 1989-04-19 | 1990-10-25 | Werner Mueller | Abdichtungsmaterial zur herstellung von wasserquellbaren profilen, kitten, vergussmassen, beschichtungsmassen |
US5284513A (en) * | 1992-10-22 | 1994-02-08 | Shell Oil Co | Cement slurry and cement compositions |
EP0607053A1 (de) * | 1993-01-15 | 1994-07-20 | Oxford Brookes University | Verbesserungen bei Dichtungsmassen |
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- 2009-11-25 CA CA 2747086 patent/CA2747086A1/en not_active Abandoned
- 2009-11-25 AU AU2009335191A patent/AU2009335191A1/en not_active Abandoned
- 2009-11-25 PE PE2011001177A patent/PE20120391A1/es not_active Application Discontinuation
- 2009-11-25 CN CN200980151390XA patent/CN102257090A/zh active Pending
- 2009-11-25 EP EP09756518A patent/EP2379667A1/de not_active Withdrawn
- 2009-11-25 WO PCT/EP2009/065792 patent/WO2010076097A1/de active Application Filing
- 2009-11-25 JP JP2011541279A patent/JP2012512294A/ja active Pending
- 2009-11-25 US US13/139,795 patent/US20120037042A1/en not_active Abandoned
- 2009-12-17 AR ARP090104965 patent/AR074789A1/es not_active Application Discontinuation
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Cited By (1)
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---|---|---|---|---|
CN114874825A (zh) * | 2021-06-26 | 2022-08-09 | 上海鸿栩化工科技有限公司 | 一种盾尾密封油脂的生产工艺及其使用方法 |
Also Published As
Publication number | Publication date |
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AR074789A1 (es) | 2011-02-09 |
EP2379667A1 (de) | 2011-10-26 |
CL2011001369A1 (es) | 2011-09-02 |
JP2012512294A (ja) | 2012-05-31 |
TW201030132A (en) | 2010-08-16 |
CN102257090A (zh) | 2011-11-23 |
AU2009335191A1 (en) | 2011-07-07 |
CA2747086A1 (en) | 2010-07-08 |
US20120037042A1 (en) | 2012-02-16 |
PE20120391A1 (es) | 2012-05-13 |
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