CH678620A5 - - Google Patents
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- CH678620A5 CH678620A5 CH2898/89A CH289889A CH678620A5 CH 678620 A5 CH678620 A5 CH 678620A5 CH 2898/89 A CH2898/89 A CH 2898/89A CH 289889 A CH289889 A CH 289889A CH 678620 A5 CH678620 A5 CH 678620A5
- Authority
- CH
- Switzerland
- Prior art keywords
- cement
- water
- copolymer
- ester
- component
- Prior art date
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- 239000004568 cement Substances 0.000 claims description 30
- 229920001577 copolymer Polymers 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 20
- 230000000996 additive effect Effects 0.000 claims description 15
- 239000004567 concrete Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 10
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 9
- 239000011976 maleic acid Substances 0.000 claims description 9
- 239000000178 monomer Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 5
- 229920005646 polycarboxylate Polymers 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- -1 alkali metal cation Chemical class 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- BBGGWHMVXARXRU-UHFFFAOYSA-N 2-methylprop-1-ene 5-phenylpenta-2,4-dienoic acid Chemical compound C(=CC1=CC=CC=C1)C=CC(=O)O.CC(C)=C BBGGWHMVXARXRU-UHFFFAOYSA-N 0.000 claims description 2
- IFYXEQMDGTZFCU-UHFFFAOYSA-N 2-methylprop-1-ene;prop-2-enoic acid Chemical compound CC(C)=C.OC(=O)C=C IFYXEQMDGTZFCU-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 239000011378 shotcrete Substances 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 2
- 125000005396 acrylic acid ester group Chemical group 0.000 claims 1
- 150000001340 alkali metals Chemical class 0.000 claims 1
- 150000003863 ammonium salts Chemical class 0.000 claims 1
- 238000007711 solidification Methods 0.000 description 9
- 230000008023 solidification Effects 0.000 description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- 150000003839 salts Chemical group 0.000 description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- QAEKNCDIHIGLFI-UHFFFAOYSA-L cobalt(2+);2-ethylhexanoate Chemical compound [Co+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O QAEKNCDIHIGLFI-UHFFFAOYSA-L 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 150000004645 aluminates Chemical class 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- SQAINHDHICKHLX-UHFFFAOYSA-N 1-naphthaldehyde Chemical class C1=CC=C2C(C=O)=CC=CC2=C1 SQAINHDHICKHLX-UHFFFAOYSA-N 0.000 description 1
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 229910052934 alunite Inorganic materials 0.000 description 1
- 239000010424 alunite Substances 0.000 description 1
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical group CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008032 concrete plasticizer Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical class O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical class CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- IKUJAIDSWVXUGG-UHFFFAOYSA-N prop-1-enyl acetate Chemical compound CC=COC(C)=O IKUJAIDSWVXUGG-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
- C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2664—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of ethylenically unsaturated dicarboxylic acid polymers, e.g. maleic anhydride copolymers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2688—Copolymers containing at least three different monomers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/32—Polyethers, e.g. alkylphenol polyglycolether
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
-
- 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
- C04B2111/00482—Coating or impregnation materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
CH 678 620 A5 CH 678 620 A5
Beschreibung description
Die Erfindung betrifft ein Verfahren zur Herstellung von schnellhärtendem Beton und Zementmischungen dafür. Dieser schnellhärtende Beton bleibt über längere Zeit flüssig und härtet trotzdem nach The invention relates to a process for the production of quick-setting concrete and cement mixtures therefor. This quick-hardening concrete remains liquid for a long time and still hardens
5 Zugabe des Beschleunigers sehr schnell. 5 Add the accelerator very quickly.
Er kann daher sehr gut für die Verkleidung von Flächen und die Ausmauerung von Hohlräumen verwendet werden. It can therefore be used very well for covering surfaces and bricking up cavities.
Die erfindungsgemässen Zementmischungen enthalten The cement mixtures according to the invention contain
10 a) Zement und Aggregat, 10 a) cement and aggregate,
b) ein Zusatzmittel auf der Basis eines Polycarboxylat-Copolymers, b) an additive based on a polycarboxylate copolymer,
c) ein Beschleuniger. c) an accelerator.
Das erfindungsgemässe Verfahren besteht darin, dass die Komponenten a) und b) zusammen mit The method according to the invention consists of components a) and b) together with
15 Wasser gemischt und zu einer Düse geführt werden, welche die fertige Mischung zum Einsatzort befördert, wobei die Komponente c) vor der Düse, gegebenenfalls mit dem Anmachwasser zugegeben wird. 15 water are mixed and fed to a nozzle which conveys the finished mixture to the place of use, component c) being added in front of the nozzle, if appropriate with the mixing water.
Als Komponente a) werden vorzugsweise Betonmischungen eingesetzt, die normalerweise einen hohen Anteil an Feinaggregat, wie z.B. Sand aufweisen. Als Zement wird vorzugsweise Portlandzement verwendet und das Feinaggregat weist vorzugsweise eine durchschnittliche Korngrösse unterhalb von As component a), preference is given to using concrete mixtures which normally have a high proportion of fine aggregate, such as Have sand. Portland cement is preferably used as the cement and the fine aggregate preferably has an average grain size below
20 5 mm auf. Es kann aber auch gröberes Aggregat, mit einer Korngrösse von etwa 15 mm eingesetzt werden. Die Mengenverhältnisse Aggregat/Zement liegen vorzugsweise zwischen 50 und 400% bezogen auf das Zementgewicht. 20 5 mm. However, a coarser aggregate with a grain size of approximately 15 mm can also be used. The aggregate / cement ratio is preferably between 50 and 400% based on the cement weight.
Das Copolymer der Komponente b) ist vorzugsweise The copolymer of component b) is preferred
25 a) ein wasserlösliches Copolymer eines Olefins und einer a, ß-ungesättigten Dicarbonsäure, oder 25 a) a water-soluble copolymer of an olefin and an a, β-unsaturated dicarboxylic acid, or
ß) ein Ester eines Polyäthylenglykolmonoaryläthers und der Maleinsäure und von Monomeren, die mit einem solchen Ester Copolymere bilden können, oder y) ein wasserlösliches Copolymer von Isobutylen, Styrol und Maleinsäure, oder 8) ein wasserlösliches Copolymer von Isobutylen-Acrylsäureester und Maleinsäure, oder β) an ester of a polyethylene glycol monoaryl ether and maleic acid and of monomers which can form copolymers with such an ester, or y) a water-soluble copolymer of isobutylene, styrene and maleic acid, or 8) a water-soluble copolymer of isobutylene-acrylic acid ester and maleic acid, or
30 e) ein wasserlösliches Copolymer von Isobutylen-Styrol-Acrylsäureester und Maleinsäure, oder f) ein wasserlösliches Copolymer eines Polyalkylenglykolmono(meth)acrylsäureesters und Acrylsäu-re oder Methacrylsäure, gegebenenfalls zusammen mit einem weiteren Monomer, das zur Bildung von Copolymeren mit dem Ester und der Säure geeignet ist. 30 e) a water-soluble copolymer of isobutylene-styrene-acrylic acid ester and maleic acid, or f) a water-soluble copolymer of a polyalkylene glycol mono (meth) acrylic acid ester and acrylic acid or methacrylic acid, optionally together with another monomer, which is used to form copolymers with the ester and the acid is suitable.
35 Beispiele solcher zur Bildung von Copolymeren geeigneter Monomere sind Ci_2o Alkanolester von Acrylsäure oder Methacrylsäure, Acryl- oder Methacrylamide, Maleinsäure und Fumarsäure sowie ihre Ester mit Ci_2o-Alkanolen,. C2-4-Alkylenglykolen oder Poly C2-t-alkylenglykolen, C2-6-Alkenylaceta-te (z.B. Vinylacetat und Propenylacetat), aromatische Vinylverbindungen (z.B. Styrol, p-Methylstyrol, Styrolsulfonat) und Vinylhalogenide (z.B. Vinylchlorid). 35 Examples of such monomers suitable for forming copolymers are Ci_2o alkanol esters of acrylic acid or methacrylic acid, acrylic or methacrylamides, maleic acid and fumaric acid and their esters with Ci_2o alkanols. C2-4-alkylene glycols or poly C2-t-alkylene glycols, C2-6-alkenyl acetates (e.g. vinyl acetate and propenyl acetate), aromatic vinyl compounds (e.g. styrene, p-methylstyrene, styrene sulfonate) and vinyl halides (e.g. vinyl chloride).
40 Bevorzugte Copolymere sind diejenigen aus einem Poly-C2-4-alkylenglykolmonoester von Acrylsäure oder Methacrylsäure und Acrylsäure oder Methacrylsäure, wobei diese Copolymere gegebenenfalls ganz oder teilweise mit Alkali in die Salzform umgesetzt worden sind. Preferred copolymers are those from a poly-C2-4-alkylene glycol monoester of acrylic acid or methacrylic acid and acrylic acid or methacrylic acid, these copolymers optionally being wholly or partly reacted with alkali in the salt form.
Diese Copolymere werden hergestellt aus These copolymers are made from
45 1) einem Monomer der Formel l CH2 = CH(Ri)-C0-0-(R2-0)n-R3 I 45 1) a monomer of the formula I CH2 = CH (Ri) -C0-0- (R2-0) n-R3 I
2) einem Monomer der Formel II 2) a monomer of formula II
CH2 = C(Ri)-COOX II CH2 = C (Ri) -COOX II
55 in welchen jedes 55 in which each
Ri, unabhängig voneinander für Wasserstoff oder Methyl steht, Ri, independently of one another, represents hydrogen or methyl,
R2 einen C2-4-Alkylenrest, R2 is a C2-4 alkylene radical,
R3 Wasserstoff oder Ci-e-Alkyl, R3 is hydrogen or Ci-e-alkyl,
60 n eine Zahl von I bis und mit 100, und 60 n is a number from I to and with 100, and
X Wasserstoff, ein Metallkation oder eine Ammoniumgruppe (von Ammoniak oder einem Alkyl- bzw. Hy-droxyalkylamin abgeleitet) bedeutet. X is hydrogen, a metal cation or an ammonium group (derived from ammonia or an alkyl or hydroxyalkylamine).
Das Copolymer der Komponente b) hat vorzugsweise ein Molekulargewicht von 23 000 bis 27 000. The copolymer of component b) preferably has a molecular weight of 23,000 to 27,000.
Bezogen auf das Zementgewicht, werden von diesem Copolymer vorteilhaft mindestens 0,01%, vor-65 zugsweise von 0,01 bis 0,5% und am meisten bevorzugt von 0,03 bis 0,2% eingesetzt. Based on the cement weight, at least 0.01%, preferably from 0.01 to 0.5% and most preferably from 0.03 to 0.2%, of this copolymer are advantageously used.
2 2nd
CH 678 620 A5 CH 678 620 A5
Die als Komponente c) zugefügten Beschleuniger sind die bekannten Zusatzmittel, welche die Erstarrung von Zementmischungen beschleunigen, und vor allem diejenige, die im Betonspritzverfahren zum Einsatz gelangen. Vorzugsweise werden sogenannte «quick-setting agents» verwendet, wie sie in JIS (Japanese Industriai Standard) A 0203, Concrete Technology definiert worden sind. The accelerators added as component c) are the known additives which accelerate the solidification of cement mixtures, and above all those which are used in the concrete spraying process. So-called “quick-setting agents” are preferably used, as defined in JIS (Japanese Industriai Standard) A 0203, Concrete Technology.
5 Beispiele solcher Zusatzmittel sind 5 examples of such additives are
I) anorganische Salze vom Typ der Alkalialuminate und Alkalicarbonate bzw. deren Mischungen (in fester Form oder als Lösung), I) inorganic salts of the alkali aluminate and alkali carbonate type or mixtures thereof (in solid form or as a solution),
II) Zementmineralien, und II) cement minerals, and
10 III) natürliche Mineralien vom Typ des gebrannten «alunite» (siehe Definition in Encycl. Britannica), gegebenenfalls in Mischung mit Aluminat und/oder Carbonat 10 III) natural minerals of the "alunite" type (see definition in Encycl. Britannica), optionally in a mixture with aluminate and / or carbonate
IV) Wasserglas IV) water glass
V) Caiciumsuifoaluminat. V) Calcium suifoaluminate.
15 Bevorzugt werden die erwähnten anorganischen Salze oder Zementmineralien, die vor allem aus Cal-ciumaluminaten (CaO • AI2O3, 12 CaO • 7 AI2O3, Ca O • 2 AI2O3,11 CaO • 7 AI2O3 • CaF2 oder 3 CaO • 3 AI2O3 - CaFa) sowie deren amorphe Formen bestehen, oder Mischungen davon (gegebenenfalls unter Zusatz von Gips) eingesetzt in Mengen, bezogen auf das Zementgewicht von 2 bis 8% Aktivsubstanz in fester Form oder Lösung im Falle der anorganischen Salze oder Wasserglas, von 5 bis 10% im Falle der 15 Preferred are the inorganic salts or cement minerals mentioned, which mainly consist of calcium aluminates (CaO • Al2O3, 12 CaO • 7 Al2O3, Ca O • 2 Al2O3.11 CaO • 7 Al2O3 • CaF2 or 3 CaO • 3 Al2O3 - CaFa) as well as their amorphous forms, or mixtures thereof (optionally with the addition of gypsum) used in amounts, based on the cement weight of 2 to 8% of active substance in solid form or solution in the case of the inorganic salts or water glass, of 5 to 10% in the case the
20 Zementmineralien oder Caiciumsuifoaluminat und von 4 bis 10% im Falle der natürlichen Mineralien. 20 cement minerals or Caiciumsuifoaluminat and from 4 to 10% in the case of natural minerals.
Es hat sich gezeigt, dass in den erfindungsgemässen Zementmischungen im Verhältnis weniger Beschleuniger notwendig sind, um den erwünschten Erstarrungseffekt bei der Zugabe zu erreichen. Dieser Effekt ist vor allem von Bedeutung, wenn Spritzbeton nach dem sogenannten Nassverfahren appliziert oder wenn eine dünnflüssige Zementmischung zum Ausmauern von Hohlräumen eingesetzt wird, It has been shown that in the cement mixtures according to the invention fewer accelerators are required in proportion in order to achieve the desired solidification effect when adding. This effect is particularly important when sprayed concrete is applied using the so-called wet process or when a low-viscosity cement mixture is used to brick up cavities.
25 d.h. wenn eine sehr flüssige Zementmischung (mit einem Wasser/Zement-Verhältnis, das höher liegt als beim Trockenspritzverfahren) zur Düse befördert wird und trotzdem schnell erstarren soll. 25 i.e. when a very liquid cement mixture (with a water / cement ratio that is higher than in the dry spraying process) is conveyed to the nozzle and still needs to solidify quickly.
Im Gegensatz zur Anwendung von bekannten Betonverflüssigern, die zwar eine gewünschte Verflüssigung der Zementmischung und eine längere Verarbeitbarkeit bewirken, jedoch nur mit grossen Mengen von Beschleunigern neutralisiert werden können, haben die erfindungsgemäss eingesetzten Poly- In contrast to the use of known concrete plasticizers, which bring about a desired liquefaction of the cement mixture and a longer processability, but can only be neutralized with large amounts of accelerators, the polymers used according to the invention have
30 carboxylat-Copolymere wohl die gewünschte verflüssigende Wirkung, behindern jedoch nicht die schnelle Aushärtung der erhaltenen Zementmischungen. 30 carboxylate copolymers may have the desired liquefying effect, but do not hinder the rapid hardening of the cement mixtures obtained.
In den folgenden Beispielen sind alle Prozentangaben als Gewichtsprozente, bezogen auf Zementgewicht, zu verstehen. Die folgenden Bestandteile werden in den in der Tabelle 1 angegebenen Verhältnissen eingesetzt, um ein Verkleidungsbeton herzustellen. In the following examples, all percentages are to be understood as percentages by weight, based on cement weight. The following ingredients are used in the proportions shown in Table 1 to make a facing concrete.
35 35
1. Betonbestandteile: 1. Concrete components:
a) Zement: Eine Mischung von Onoda, Mitsubishi und Sumitomo-Portlandzement in gleichen Mengen b) Grobaggregat: «Ohme graywacke crushed stone» (spezifische Dichte 2,64, Absorption 0,67%, a) Cement: A mixture of Onoda, Mitsubishi and Sumitomo-Portland cement in equal quantities b) Large aggregate: “Ohme graywacke crushed stone” (specific density 2.64, absorption 0.67%,
40 F.M. = 6,35, max. Korngrösse 15 mm) 40 F.M. = 6.35, max. Grain size 15 mm)
c) Feinaggregat: Eine Mischung von Oi-Fluss Kernsand und Chiba Kernsand in gleichen Mengen c) Fine aggregate: A mixture of Oi-river core sand and Chiba core sand in equal amounts
2. Zusatzmittel: 2. Additive:
45 a) Polycarboxylat: Caiciumsalz des Copolymers von Poly-C2-4-alkylen-glykolmonomethacrylsäuree-ster und Methacrylsäure (hergestellt durch Nisso Master Builders Co., Ltd.) = Zusatzmittel A 45 a) Polycarboxylate: calcium salt of the copolymer of poly-C2-4-alkylene-glycol monomethacrylic acid ester and methacrylic acid (manufactured by Nisso Master Builders Co., Ltd.) = additive A
b) Lignosulfonat: Pozzolith Nr. 8 (hergestellt durch Nisso Master Builders Co., Ltd) = Zusatzmittel B b) Lignosulfonate: Pozzolite No. 8 (manufactured by Nisso Master Builders Co., Ltd) = additive B
c) Hydroxycarbonsäure: Natriumgluconat = Zusatzmittel C c) Hydroxycarboxylic acid: sodium gluconate = additive C
d) Kondensationsprodukt von sulfoniertem Naphthalin und Formaldehyd (Mighty 150, hergestellt d) Condensation product of sulfonated naphthalene and formaldehyde (Mighty 150, produced
50 durch Kao Soap Co., Ltd.) = Zusatzmittel D 50 by Kao Soap Co., Ltd.) = Additive D
e) Kondensationsprodukt von sulfoniertem Melamin und Formaldehyd (NL 4000, hergestellt durch Nisso Master Builders Co., Ltd.) = Zusatzmittel E e) Condensation product of sulfonated melamine and formaldehyde (NL 4000, manufactured by Nisso Master Builders Co., Ltd.) = additive E
f) anorganisches Salzpulver (Beschleuniger QP 500, hergestellt durch Nisso Master Builders Co., Ltd.) = Zusatzmittel F f) inorganic salt powder (accelerator QP 500, manufactured by Nisso Master Builders Co., Ltd.) = additive F
55 g) Zementmineral (Beschleuniger QP 55, hergesteilt durch Nisso Master Builders Co., Ltd.) = Zusatzmittel G. 55 g) cement mineral (accelerator QP 55, manufactured by Nisso Master Builders Co., Ltd.) = admixture G.
60 60
65 65
3 3rd
CH 678 620 A5 CH 678 620 A5
Tabelle 1 Table 1
Mischungsverhältnisse der Betonbestandteile Mixing ratios of the concrete components
Test Nr. Bsp: Nr. Zusatzmittel Beschleuniger Menge in kg/m3 Test No. Example: No. Additive accelerator quantity in kg / m3
Typ Type
Dosierungen Dosages
Typ Type
Dosierungen Dosages
Zement cement
Wasser water
Fein-Aggreg. Fine aggregate.
Grob-Aggreg. Coarse aggregate.
1 1
1 1
A A
0.12 0.12
F F
3 3rd
360 360
176 176
1058 1058
705 705
2 2nd
l l
- " - "
- -
F F
3 3rd
360 360
200 200
1047 1047
698 698
3 3rd
II II
B B
0.50 0.50
F F
3 3rd
360 360
176 176
1058 1058
705 705
4 4th
III III
C C.
0.20 0.20
F F
3 3rd
360 360
176 176
1058 1058
705 705
5 5
IV IV
D D
0.45 0.45
F F
3 3rd
360 360
176 176
1058 1058
705 705
6 6
V V
E E
0.50 0.50
F F
3 3rd
360 360
176 176
1058 1058
705 705
7 . 7.
2 2nd
A A
0.12 0.12
G G
6 6
360 360
176 176
1058 1058
705 705
8 8th
VI VI
" "
- - - -
G G
6 6
360 360
200 200
1047 1047
698 698
9 9
VII VII
B B
0.50 0.50
G G
6 6
360 360
176 176
1058 1058
705 705
10 10th
VIII VIII
C C.
0.20 0.20
G G
6 6
360 360
176 176
1058 1058
705 705
11 11
IX IX
D D
0.45 0.45
G G
6 6
360 360
176 176
1058 1058
705 705
12 12
X X
E E
0.50 0.50
G G
6 6
360 360
176 176
1058 1058
705 705
25 In der Tabelle 1 erläutern die Beispiele 1 und 2 die Erfindung, während die Beispiele I bis X Vergleichsbeispiele sind. 25 In Table 1, Examples 1 and 2 illustrate the invention, while Examples I to X are comparative examples.
Nach Vermischen von Zement, Wasser, Feinaggregat, Grobaggregat und eventuellem Zusatzmittel A bis E wird durch Abtrennen des Grobaggregats mit einem 5 mm Sieb ein Mörtel erhalten, den man 30 Minuten stehen iässt. Der Beschleuniger wird zugefügt und von Hand während 20 Sekunden eingerührt. After mixing the cement, water, fine aggregate, coarse aggregate and any additives A to E, a mortar is obtained by separating the coarse aggregate with a 5 mm sieve, which is left to stand for 30 minutes. The accelerator is added and stirred in by hand for 20 seconds.
30 Die Zeit zur beginnenden Erstarrung wird für jeden Mörtel gemessen, indem map gemäss der Methode «test for time of setting of concrete» die Zeit bestimmt, bis der Eindringungswiderstand 35 kg/cm2 erreicht hat. Diese Zeit wird in Minuten und Sekunden vom Zeitpunkt der Zugabe des Beschleunigers gerechnet. Die Testergebnisse mit Beschleuniger F sind in Tabelle 2, diejenige mit Beschleuniger G in Tabelle 3 angegeben. 30 The time for the onset of solidification is measured for each mortar by using map to determine the time until the resistance to penetration has reached 35 kg / cm2 using the test for time of setting of concrete method. This time is calculated in minutes and seconds from the time the accelerator was added. The test results with accelerator F are given in Table 2, those with accelerator G in Table 3.
35 35
Tabelle 2 Table 2
Erstarrungszeiten mit Beschleuniger F Solidification times with accelerator F
TestNr. Test No.
Bsp. Nr. Example No.
Zeit bis zur beginnenden Erstarrung (min/Sek.) Time until solidification begins (min / sec)
1 1
1 1
13-40 13-40
2 2nd
I I.
mehr als 20 min more than 20 min
3 3rd
11 11
mehr als 20 min more than 20 min
4 4th
IH IH
mehr als 20 min more than 20 min
5 5
IV IV
mehr als 20 min more than 20 min
6 6
V V
17-20 17-20
50 50
Tabelle 3 Table 3
Erstarnjngsze'rten mit Beschleuniger G Initial stages with accelerator G
TestNr. Test No.
Bsp. Nr. Example No.
Zeit bis zur beginnenden Erstarrung (min/Sek.) Time until solidification begins (min / sec)
7 7
2 2nd
weniger als 1 min less than 1 min
8 8th
VI VI
3-30 3-30
9 9
VII VII
4-20 4-20
10 10th
Vili mehr als 20 min Vili more than 20 min
11 11
IX IX
4-00 4-00
12 12
X X
3-10 3-10
65 65
4 4th
CH 678 620 A5 CH 678 620 A5
Bei Verwendung des Beschleunigers F ist die Erstarrungszeit bei allen Mörteln ohne Zusatzmittel A bis E oder mit irgendeinem der Vergleichszusatzmittel B bis E nie unterhalb 17 Minuten, während bei Verwendung des Zusatzmittels A die Erstarrung nach 13 Minuten und 40 Sekunden die verlangte Festigkeit erreicht. When using accelerator F, the setting time for all mortars without additives A to E or with any of the comparative additives B to E is never less than 17 minutes, while when using additive A, setting takes 13 minutes and 40 seconds to achieve the required strength.
5 Bei Verwendung des Beschleunigers G ist diese Erstarrung mit dem Zusatzmittel A bereits innerhalb von 1 Minute erreicht, während in allen Vergleichstests mehr als 3 Minuten gebraucht wird. Wenn also ein Zusatzmittel A statt eines der Zusatzmittel B bis E verwendet wird, wird mit dem gleichen Beschleuniger die Zeit bis zur beginnenden Erstarrung erheblich abgekürzt. 5 When using accelerator G, this solidification with additive A is already achieved within 1 minute, whereas in all comparative tests more than 3 minutes are used. If an additive A is used instead of one of the additives B to E, the time until the beginning of solidification is considerably shortened with the same accelerator.
Im folgenden Versuch wird geprüft, inwiefern bis zur Zugabe des Beschleunigers die Fliesseigen-10 Schäften des Betons erhalten bleiben Die Bestandteile und deren Mischungsverhältnisse sind wie in der Tabelle 1 für Beispiel 1 und die Vergleichsbeispiele I, IV und V angegeben. Die verwendeten Zusatzmittel sind das Polycarboxylat A, das sulfonierte Naphthalin-Formaldehyd-Kondensat D und das sulfonierte Melamin-Formaldehyd-Kondensat E. In the following experiment, it is checked to what extent the flow properties of the concrete are retained until the accelerator is added. The constituents and their mixing ratios are as given in Table 1 for Example 1 and Comparative Examples I, IV and V. The additives used are the polycarboxylate A, the sulfonated naphthalene-formaldehyde condensate D and the sulfonated melamine-formaldehyde condensate E.
Zement, Wasser, Aggregat und Zusatzmittel werden in einem Kippmischer gemischt und der Beton ge-15 stürzt, wonach sein Ausbreitungsmass gemessen wird. Der Beton wird wieder in den Mischer gegeben, den man für eine bestimmte Zeit bei niedriger Geschwindigkeit (2 UpM) weiter drehen lässt. Das Ausbreitungsmass wird wieder nach 30 und 60 Minuten gemessen. Die Ergebnisse sind in der Tabelle 4 angegeben. Cement, water, aggregate and admixture are mixed in a tilt mixer and the concrete is overturned, after which its spreading mass is measured. The concrete is put back into the mixer, which is kept rotating for a certain time at low speed (2 rpm). The spread is measured again after 30 and 60 minutes. The results are shown in Table 4.
20 Tabelle 4 20 Table 4
Verlust von Ausbreitungsmass Loss of spread
Test Nr. Test No.
Bsp. Nr. Example No.
Zusatzmittel Additives
Ausbreitungsmass in cm Spread in cm
(vgl. Tabelle 1) (see table 1)
Typ Type
Dosierung sofort nach 30 min nach 60 min Dosage immediately after 30 min after 60 min
13 13
3 3rd
A A
0.12 0.12
13.5 13.5
10.0 10.0
8.5 8.5
14 14
XI XI
- -
- -
14.0 14.0
9.0 9.0
7.5 7.5
15 15
XII XII
D D
0.45 0.45
13.5 13.5
8.0 8.0
6.0 6.0
16 16
XIII XIII
E E
0.50 0.50
14.0 14.0
6.5 6.5
5.0 5.0
Aus der Tabelle 4 geht hervor, dass im Vergleich mit anderen Zusatzmitteln bei Verwendung des Poly-carboxylats A das Ausbreitungsmass von Beton auch nach längerer Zeit nicht wesentlich abnimmt. Bei Table 4 shows that in comparison with other admixtures when using poly-carboxylate A, the degree of dispersion of concrete does not decrease significantly even after a long time. At
35 Verwendung des Zusatzmittels E ist zwar die Zeit bis zur beginnenden Erstarrung kurz (siehe Tabelle 2), die Veränderung des Ausbreitungsmass in Abhängigkeit der Zeit ist aber ebenfalls gross (weniger als 5 cm nach 60 Minuten). 35 Using the additive E, the time until the onset of solidification is short (see Table 2), but the change in the degree of dispersion as a function of time is also large (less than 5 cm after 60 minutes).
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63197192A JPH0248453A (en) | 1988-08-09 | 1988-08-09 | Production of quick-setting concrete for covering concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH678620A5 true CH678620A5 (en) | 1991-10-15 |
Family
ID=16370340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH2898/89A CH678620A5 (en) | 1988-08-09 | 1989-08-04 |
Country Status (13)
| Country | Link |
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| JP (1) | JPH0248453A (en) |
| AT (1) | ATA189889A (en) |
| AU (1) | AU622467B2 (en) |
| BE (1) | BE1003765A5 (en) |
| BR (1) | BR8903983A (en) |
| CA (1) | CA1337871C (en) |
| CH (1) | CH678620A5 (en) |
| DE (1) | DE3925306A1 (en) |
| ES (1) | ES2018382A6 (en) |
| FR (1) | FR2635320B1 (en) |
| GB (1) | GB2221673B (en) |
| HK (1) | HK134194A (en) |
| IT (1) | IT1231777B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4217181A1 (en) * | 1992-05-23 | 1993-11-25 | Chemie Linz Deutschland | Melamine glyoxylic acid or salt condensate use in hydraulic binder - to increase flow, retard setting and opt. increase strength of set prod. |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2659895A1 (en) * | 1990-03-22 | 1991-09-27 | Nouvion Bernard | Process for the manufacture of materials made of stabilised, compressed and crystallised soil aggregates and the product obtained |
| NO172255C (en) * | 1991-01-08 | 1993-06-23 | Sandoz Ltd | PROCEDURE FOR MIXING ADDITIVES IN A SUBSTANCES AND ADDITION TO USE BY THE PROCEDURE |
| CH686780A5 (en) * | 1992-07-22 | 1996-06-28 | Sandoz Ag | Fliessfaehige cement mixtures. |
| AT399340B (en) * | 1993-02-01 | 1995-04-25 | Chemie Linz Gmbh | COPOLYMERS BASED ON MALEINIC ACID DERIVATIVES AND VINYL MONOMERS, THEIR PRODUCTION AND USE |
| US5443636B1 (en) * | 1994-07-29 | 1999-07-13 | Fritz Ind Inc | Composition for and method of pumping concrete |
| MY114306A (en) * | 1995-07-13 | 2002-09-30 | Mbt Holding Ag | Cement dispersant method for production thereof and cement composition using dispersant |
| FR2742432B1 (en) | 1995-12-15 | 1998-02-06 | Spie Fondations | RIGIDIFICATION ACCELERATOR, GROUT FOR SEALING AND / OR CONSOLIDATION OF SOILS AND CONSTRUCTION MATERIALS RELATING TO SUCH AN ACCELERATOR, METHODS USING SUCH GROUT |
| US6384111B1 (en) | 1996-12-20 | 2002-05-07 | Basf Aktiengesellschaft | Polymers containing carboxyl groups and polyalkylene ether side- chains as additives in mineral building materials |
| DE19723474A1 (en) * | 1997-06-04 | 1998-12-17 | Clariant Gmbh | Process for processing a plastic-modified shotcrete or shot mortar |
| US5854386A (en) * | 1997-08-25 | 1998-12-29 | Arco Chemical Technology, L.P. | Stabilizers for polymer polyols |
| DE19854477C2 (en) * | 1998-11-25 | 2002-03-14 | Dyckerhoff Ag | Fastest-setting hydraulic binder composition and its use |
| DE19854476C2 (en) * | 1998-11-25 | 2002-04-11 | Dyckerhoff Ag | Hydraulic binder composition free of sulfate carrier and its use |
| DE19914975A1 (en) * | 1999-04-01 | 2000-10-05 | Espe Dental Ag | Polyelectrolyte cement used as dental material has organic coating on all of part of metal-releasing component and/or water-soluble polyelectrolyte |
| US6528593B1 (en) | 1999-09-10 | 2003-03-04 | The Dow Chemical Company | Preparing copolymers of carboxylic acid, aromatic vinyl compound and hydrophobic polyalkylene oxide |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1111711A (en) * | 1964-08-05 | 1968-05-01 | Fisons Ind Chemicals Ltd | Plaster compositions |
| US4046584A (en) * | 1976-04-29 | 1977-09-06 | Snyder Raymond C | Liquid concrete accelerating mixtures and methods for use thereof |
| US4650523A (en) * | 1984-06-08 | 1987-03-17 | Onoda Cement Co., Ltd. | Cement accelerating agent |
| JPS63162563A (en) * | 1986-12-25 | 1988-07-06 | 大日本インキ化学工業株式会社 | Cement dispersant |
| JPH01226757A (en) * | 1988-03-04 | 1989-09-11 | Takemoto Oil & Fat Co Ltd | Dispersing agent for cement |
| DE3825161A1 (en) * | 1988-07-23 | 1990-01-25 | Henkel Kgaa | DUST BINDERS FOR THE CONCRETE SPRAYING PROCESS (II) |
-
1988
- 1988-08-09 JP JP63197192A patent/JPH0248453A/en active Granted
-
1989
- 1989-07-31 DE DE3925306A patent/DE3925306A1/en not_active Withdrawn
- 1989-08-04 CH CH2898/89A patent/CH678620A5/de not_active IP Right Cessation
- 1989-08-07 AU AU39401/89A patent/AU622467B2/en not_active Ceased
- 1989-08-07 GB GB8918019A patent/GB2221673B/en not_active Expired - Lifetime
- 1989-08-08 ES ES8902820A patent/ES2018382A6/en not_active Expired - Lifetime
- 1989-08-08 FR FR8910686A patent/FR2635320B1/en not_active Expired - Fee Related
- 1989-08-08 BR BR898903983A patent/BR8903983A/en not_active Application Discontinuation
- 1989-08-08 IT IT8921478A patent/IT1231777B/en active
- 1989-08-08 AT AT0189889A patent/ATA189889A/en not_active Application Discontinuation
- 1989-08-09 CA CA000607887A patent/CA1337871C/en not_active Expired - Fee Related
- 1989-08-09 BE BE8900855A patent/BE1003765A5/en not_active IP Right Cessation
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- 1994-12-01 HK HK134194A patent/HK134194A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4217181A1 (en) * | 1992-05-23 | 1993-11-25 | Chemie Linz Deutschland | Melamine glyoxylic acid or salt condensate use in hydraulic binder - to increase flow, retard setting and opt. increase strength of set prod. |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0553743B2 (en) | 1993-08-10 |
| BR8903983A (en) | 1990-03-20 |
| FR2635320A1 (en) | 1990-02-16 |
| AU622467B2 (en) | 1992-04-09 |
| ATA189889A (en) | 1994-06-15 |
| AU3940189A (en) | 1990-02-15 |
| ES2018382A6 (en) | 1991-04-01 |
| BE1003765A5 (en) | 1992-06-09 |
| JPH0248453A (en) | 1990-02-19 |
| GB2221673B (en) | 1992-11-11 |
| GB8918019D0 (en) | 1989-09-20 |
| IT1231777B (en) | 1991-12-21 |
| HK134194A (en) | 1994-12-09 |
| DE3925306A1 (en) | 1990-02-15 |
| CA1337871C (en) | 1996-01-02 |
| IT8921478A0 (en) | 1989-08-08 |
| FR2635320B1 (en) | 1993-09-24 |
| GB2221673A (en) | 1990-02-14 |
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| Date | Code | Title | Description |
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| PUE | Assignment |
Owner name: SANDOZ AG TRANSFER- MBT HOLDING AG |
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| PL | Patent ceased |