EP2906513A1 - Entraîneur d'air pour systèmes à base de ciment - Google Patents
Entraîneur d'air pour systèmes à base de cimentInfo
- Publication number
- EP2906513A1 EP2906513A1 EP13779785.8A EP13779785A EP2906513A1 EP 2906513 A1 EP2906513 A1 EP 2906513A1 EP 13779785 A EP13779785 A EP 13779785A EP 2906513 A1 EP2906513 A1 EP 2906513A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- entraining agent
- air entraining
- agent
- effect
- 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.)
- Ceased
Links
- 239000000463 material Substances 0.000 title abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 137
- 230000000694 effects Effects 0.000 claims abstract description 30
- 238000005187 foaming Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004568 cement Substances 0.000 claims description 35
- 239000011230 binding agent Substances 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 19
- 239000004570 mortar (masonry) Substances 0.000 claims description 17
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 14
- 239000004567 concrete Substances 0.000 claims description 13
- 239000003784 tall oil Substances 0.000 claims description 12
- 229920005646 polycarboxylate Polymers 0.000 claims description 11
- 239000003945 anionic surfactant Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000003755 preservative agent Substances 0.000 claims description 9
- 230000002335 preservative effect Effects 0.000 claims description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 239000003518 caustics Substances 0.000 claims description 3
- 239000008139 complexing agent Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 239000004576 sand Substances 0.000 description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 235000010755 mineral Nutrition 0.000 description 7
- -1 fatty alcohol sulfates Chemical class 0.000 description 6
- 239000010881 fly ash Substances 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 150000002170 ethers Chemical class 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011376 self-consolidating concrete Substances 0.000 description 3
- HUHGPYXAVBJSJV-UHFFFAOYSA-N 2-[3,5-bis(2-hydroxyethyl)-1,3,5-triazinan-1-yl]ethanol Chemical compound OCCN1CN(CCO)CN(CCO)C1 HUHGPYXAVBJSJV-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000003862 amino acid derivatives Chemical class 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 description 2
- 229940073507 cocamidopropyl betaine Drugs 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 235000020777 polyunsaturated fatty acids Nutrition 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- FKKAGFLIPSSCHT-UHFFFAOYSA-N 1-dodecoxydodecane;sulfuric acid Chemical compound OS(O)(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC FKKAGFLIPSSCHT-UHFFFAOYSA-N 0.000 description 1
- SQAINHDHICKHLX-UHFFFAOYSA-N 1-naphthaldehyde Chemical compound C1=CC=C2C(C=O)=CC=CC2=C1 SQAINHDHICKHLX-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- BCFOOQRXUXKJCL-UHFFFAOYSA-N 4-amino-4-oxo-2-sulfobutanoic acid Chemical class NC(=O)CC(C(O)=O)S(O)(=O)=O BCFOOQRXUXKJCL-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 240000002989 Euphorbia neriifolia Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- SMVRDGHCVNAOIN-UHFFFAOYSA-L disodium;1-dodecoxydodecane;sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC SMVRDGHCVNAOIN-UHFFFAOYSA-L 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QZIQJVCYUQZDIR-UHFFFAOYSA-N mechlorethamine hydrochloride Chemical compound Cl.ClCCN(C)CCCl QZIQJVCYUQZDIR-UHFFFAOYSA-N 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 235000021281 monounsaturated fatty acids Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- TYLSDQJYPYQCRK-UHFFFAOYSA-N sulfo 4-amino-4-oxobutanoate Chemical compound NC(=O)CCC(=O)OS(O)(=O)=O TYLSDQJYPYQCRK-UHFFFAOYSA-N 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/017—Mixtures of compounds
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/304—Air-entrainers
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
Definitions
- This invention relates to air entraining agents for cementitious systems.
- the known air entrainers have various disadvantages, such as foaming over time, defoaming over time, especially within the first few minutes after mixing, a change in the air-entrained structure over time, different sensitivities or poor compatibility with condensers, other concrete admixtures and other binders, such as fly ash and slag, and a different air content depending on mixing time and type of mix. Presentation of the invention
- the invention has for its object to overcome the problems described above.
- New air entraining agents are to be provided which have special and advantageous properties. In particular, should
- Air entraining agents are provided, which introduce a constant
- Binder compositions shows.
- the above object is achieved by an air-entraining agent containing at least one air entraining agent with foaming action, at least one air entraining agent with defoaming action and water.
- the core of the invention is an air-entraining agent which contains at least two different air-entraining substances which behave contrary to one another during foaming.
- the invention also relates to the use of the invention
- Air-pore forming agent for the formation of air pores in cementitious systems. Way to carry out the invention
- the present invention relates to an air-entraining agent which comprises at least one air entraining agent with an intumescent effect, at least one
- Air entraining agent with defoaming action and water contains.
- intumescent is meant here that within 40 minutes after completion of the mixing process, an increase in the air content comes.
- Defoaming is understood to mean that the air content is reduced within 40 minutes after the end of the mixing process (measured in each case according to DIN EN 1015-7). Foaming therefore leads to an increase in the introduction of air during mixing, ie the stability is increased, while defoaming reduces the introduction of air, ie destabilization of the air pores occurs.
- This combination of differently acting air entraining agents leads to an adaptive universally applicable air-entraining agent.
- the use of the air-entraining agent according to the invention leads in particular to a more robust introduction of air and to more stable air pores.
- the use of the air-entraining agent according to the invention also makes it possible to minimize the dependence of the amount of air pores and the air pore size on the type of cement or mortar, of the aggregate and grain composition, of the mixer type, of the mixer duration of the temperature and of the mixing intensity or switch off.
- the dependence on other substances used, such as the binder and the flow agent can, with the help of
- the air-entraining agent according to the invention can be drastically reduced.
- the effect of the at least one air entraining agent with an intumescent effect and the effect of the at least one air entraining agent with defoaming action cancel each other out. It is hereby understood that the air content does not change within 40 minutes after completion of the mixing process by more than 20% (relative) of the original air content (measured according to DIN EN 1015-7). It is particularly preferred that the air content is not more than 10% (relative) of the
- Air entraining agent with defoaming effect is first pointed out that, depending on the cementous system used, the same substance both as an air entraining agent with foaming effect as well as
- Air entraining agent can be used with defoaming effect. That means using the same substance in a system as an air entraining agent
- foaming effect and can be used in another system as an air entraining agent with defoaming effect.
- the same substance in a same system can have only one of the two possible effects.
- any known air entraining agent can be used in the air-entraining agent according to the invention as an air-entraining agent with an intumescent effect.
- this is tall oil, an anionic surfactant and / or fatty acids.
- the use of distilled tall oil is preferred. This has the advantage that it has a particularly defined and stable composition. Particularly preferred is the use of a
- Fatty acid fraction of distilled tall oil is Especially suitable.
- Air entraining agents with foaming action also fatty alcohol sulfates, especially anionic Fettal koululfulates, amino acid derivatives, in particular anionic
- Amino acid derivatives for example sarcosinates, olefinsulfonates, in particular anionic olefin sulfonates, sulfosuccinamates, in particular anionic
- phosphates in particular anionic phosphates, amphoteric compounds, for example Cocamidopropylbetaine, alkylphenol ethoxylates, in particular nonionic
- Alkylphenol ethoxylates, amide ethoxylates, in particular nonionic amide ethoxylates, amine ethoxylates, in particular nonionic amine ethoxylates are used.
- the air-entraining agent with foaming action contains at least one unsaturated fatty acid, preferably at least one polyunsaturated fatty acid.
- unsaturated fatty acid preferably at least one polyunsaturated fatty acid.
- mixtures containing several different Fatty acids in particular mixtures of at least one monounsaturated fatty acid and at least one polyunsaturated fatty acid.
- mixtures containing linoleic acid and oleic acid, optionally with resin acids are suitable.
- the fatty acids are preferably derived from tall oil and / or distilled tall oil.
- Air entraining agents two air entrainers with foaming action. This leads to the advantage that the sensitivity to surcharges, additives and other influences is reduced.
- a surfactant preferably an anionic surfactant, in particular a lauryl ether sulfate.
- the use of this combination has the additional advantage of reducing sensitivity to aggregates, additives and other influences
- a surfactant preferably an anionic surfactant, and particularly preferably a basic anionic surfactant, is used as air-entraining agent with defoaming action. It goes without saying that when the defoaming air entraining agent is, for example, an anionic surfactant, it does not coexist in a given cementitious system
- Air entraining agent can be with foaming effect.
- Fatty alcohol ether sulfates, in particular anionic fatty alcohol ether sulfates, alcohol ethoxylates, in particular nonionic alcohol ethoxylates, may preferably also be used as air entraining agents with defoaming action.
- phosphates especially anionic phosphates, amphoteric compounds, such as Cocamidopropylbetaine, alkylphenol ethoxylates, in particular nonionic
- Alkylphenol ethoxylates, amide ethoxylates, in particular nonionic amide ethoxylates, amine ethoxylates, in particular nonionic amine ethoxylates are used.
- the ratio of the at least one air entraining agent with an intumescent effect to the at least one air entraining agent with defoaming action in the air entraining agent according to the invention is in principle variable and depends on the materials and equipment used. However, it has been shown that it is advantageous if this ratio is 10:90 to 90:10, preferably 30:70 to 70:30.
- the ratio is preferably chosen such that it is possible to use the air-entraining agent according to the invention with slag and / or fly ash and that the negative influence of carbon particles is masked. The latter reduces the sensitivity of the air pores to carbon.
- the air-entraining agent according to the invention comprises a solubility enhancing agent, preferably a stabilizer, a complexing agent, most preferably nitrilotriacetic acid, a solubilizer or a pH modifying substance, more preferably a caustic and most preferably caustic soda.
- a solubility enhancing agent preferably a stabilizer
- a complexing agent most preferably nitrilotriacetic acid
- a solubilizer or a pH modifying substance more preferably a caustic and most preferably caustic soda.
- Air entraining agents a preservative.
- any known preservative can be used, but the use of formaldehyde-releasing preservatives is particularly preferred.
- An air-entraining agent which comprises 0.02 to 6% by weight, in particular 0.2 to 6% by weight, of the at least one air-entraining agent with an intumescent effect, 0.02 to 6% by weight, in particular 0, is particularly preferred. From 2 to 6% by weight of the at least one air-entraining agent with defoaming action, from 80 to 99.9% by weight of water, optionally from 0.02 to 2.5% by weight of caustic, and optionally from 0.01 to 0.5 % By weight preservative.
- the air-entraining agent according to the invention comprises 0.02 to 5.0% by weight, in particular 0.2 to 5.0% by weight, of the at least one air-entraining agent with an intumescent effect, 0.02 to 5, 0 wt .-%, in particular 0.2 to 5.0 wt .-%, of the at least one
- air-entraining agent with defoaming action 80 to 99.9% by weight of water, optionally from 0.05 to 1.0% by weight of alkali and optionally from 0.01 to 0.5% by weight
- Preservative Such a means has the additional advantage of low sensitivity to the grading curve and / or the type of mixer in the
- the present invention also relates to the use of the above-described air-entraining agent according to the invention for the formation of air voids in cementitious systems, preferably in concrete and mortar mixtures.
- the air-entraining agent according to the invention can be used in all known cementitious systems for the formation of air pores.
- the cementitious systems are concrete or mortar mixtures.
- the present invention also relates to the use of the above-described air-entraining agent according to the invention for the formation of air voids in cementitious systems, preferably in concrete and mortar mixtures.
- a cementitious binder is in particular a binder or a binder composition in an amount of at least 5% by weight, in particular at least 20% by weight, preferably at least 35% by weight, very particularly preferably at least 65% by weight,
- cement clinker understood.
- the cement clinker is preferably a Portland cement clinker.
- cement clinker is meant in the present context in particular ground cement clinker.
- the mineral binder contains a hydraulic binder, preferably cement.
- a hydraulic binder preferably cement.
- a cement having a cement clinker content of> 35 wt .-%.
- the cement is of the type CEM I, CEM II and / or CEM IIIA (according to standard EN 197-1).
- the proportion of the hydraulic binder in the total mineral binder is advantageously at least 5 wt .-%, in particular at least 20 wt .-%, preferably at least 35 wt .-%, and most preferably at least 65 wt .-%.
- Embodiment consists of mineral binder to> 95 wt .-% of hydraulic binder, in particular cement clinker.
- the binder contains or consists of other binders. These are in particular latent hydraulic binders and / or pozzolanic binders. Suitable latent hydraulic and / or pozzolanic binders are e.g. Slag, fly ash and / or silica fume. Likewise, the binder may contain inert substances such as e.g. Limestone, quartz flour and / or pigments. In an advantageous embodiment, the mineral binder contains 5 to 95% by weight, in particular 5 to 65% by weight, particularly preferably 15 to 35% by weight, of latently hydraulic and / or pozzolanic binders.
- the mineral binder contains a hydraulic binder, in particular cement or cement clinker, and a latent hydraulic and / or pozzolanic binder, preferably slag and / or fly ash.
- the proportion of the latently hydraulic and / or pozzolanic binder is particularly preferably 5-65% by weight, more preferably 15-35% by weight, while at least 35% by weight, particularly preferably at least 65% by weight, of the hydraulic binder present.
- a “mineral binder” is also considered as a “mineral binder composition”. The same applies to the term cementitious binder.
- the cementitious systems preferably the concrete and mortar mixtures, contain a plasticizer.
- a plasticizer for example, polycarboxylate, vinyl, melamine or
- Naphthalene-formaldehyde condensates, lignosulfonates or carbohydrates are used, wherein the use of Polycarboxylatether-containing flow agents is particularly preferred because with the Polycarboxylatether-containing flow agents, a higher water reduction can be achieved.
- Polycarboxylate ethers according to the present invention are not suitable or to be regarded as air entraining agents.
- Condenser is preferably used in an amount of 0.5 to 1.5 wt .-%, particularly preferably in an amount of 0.6 to 1.2 wt .-%.
- air-entraining agent for forming air pores is introduced, is preferably 0.2 to 0.8, and particularly preferably 0.4 to 0.7.
- the air-entraining agent according to the invention is used in an amount of from 0.1 to 2% by weight, preferably from 0.2 to 1.2% by weight, based on the binder content of the cementitious system.
- LM 1 and LM 2 Two air-entraining agents (LM 1 and LM 2) were prepared according to Table 1. Water was initially charged, then Sylvatal 25/30, Rewopol TS 35 H was added and it was mixed. Subsequently, sodium hydroxide solution was added and mixed again. Finally, Texapon NSO was added to about 28%, Grotan TK 5 PLUS and, depending on the formulation, nitrilotriacetic acid and mixed again.
- Table 1 Composition of air-entraining agents (LM 1 and LM 2) in% by weight, based on the total weight of the air-entraining agent
- Sylvatal 25/30 is distilled tall oil (available from Chemische Fabrik Schweizerhall)
- Rewopol TS 35 H is an anionic surfactant (available from Goldschmidt GmbH)
- Texapon NSO is a sodium lauryl ether sulfate (available from Cognis GmbH)
- Grotan TK 5 PLUS is a preservative (available) at THOR GmbH)
- Nitrilotriacetic acid is a complexing agent (available from BASF) 2. Mortar and concrete tests
- Production Variant A The sand, gravel, silt and cement were mixed for 1 minute in a compulsory mixer (Hobart A200N). The condenser and air-entraining agent (s) were added to the mixing water and this was added to the sand, gravel, silt and cement with mixing within 3 minutes. The water / cement content (w / c value) was between 0.42 and 0.70.
- Manufacturing Variant B The sand, gravel, filleting and cement were mixed for 1 minute in a case mixer (50 kg DEMA concrete mixer GBM 50). The condenser and air-entraining agent (s) were added to the mixing water and this was added to the sand, gravel, silt and cement with mixing within 3 minutes. The water / cement content (w / c value) was between 0.42 and 0.44.
- Air-entraining agents were added to the mixing water and this was added to the sand, gravel, filament and cement with mixing within 3 minutes.
- the water / cement content (w / c value) was between 0.42 and 0.70.
- Production Variant A The sand, gravel, silt and cement were mixed for 30 seconds in a compulsory mixer (Zyklos). The condenser and air-entraining agent (s) were added to the mixing water and this was added to the sand, gravel, silt and cement with mixing within 3 minutes. The water / cement content (w / c value) was between 0.45.
- Production variant B The sand, the gravel, the filier and the cement were mixed for 30 seconds in a compulsory mixer (Zyklos).
- the condenser and air-entraining agent (s) were added to the mixing water and this was added to the sand, gravel, silt and cement with mixing within 3 minutes.
- the water / cement content (w / c value) was between 0.45.
- a slump (ABM) of 160 mm or more for the standard mortar or a slump flow for SCC and a slump of 40 cm or more for concrete indicate a good workability.
- a distance factor of less than 0.25 mm and a specific surface area greater than 25 mm "1 indicate a very good resistance to freeze-thawing.
- Sika ViscoCrete 20HE is a polycarboxylate ether (available from Sika für AG). 3.2.
- the slump and the air content of various grading curves (standard mortar prepared according to preparation variant A) with the air entraining agent LM 1 according to the invention and a polycarboxylate ether as condenser were determined.
- the results are shown in Table 3 and show that the insert 5 of the air-entraining agent LM 1 according to the invention has hardly any influence on the air content and the air-pore quality even when the grading curve is changed.
- Sika ViscoCrete 3010S is a polycarboxylate ether (available from Sika Buch AG)
- Aerospace the mortar or concrete has a good resistance to freeze-thawing.
- air-entraining agent different grading lines and different types of mixers do not affect the quality of air introduction.
- Air entraining agents were determined (50 kg mixer "Stabilo concrete mixer 6BM50"). The results are shown in Table 8 and show that when using the air-entraining agent of the invention, the air content remains almost constant, while the use of known air entraining agents, which are all 1-component systems, leads to an up or foaming.
- Sika ViscoCrete 20HE is a polycarboxylate ether (available from Sika Buch AG).
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13779785.8A EP2906513A1 (fr) | 2012-10-15 | 2013-10-14 | Entraîneur d'air pour systèmes à base de ciment |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12188533 | 2012-10-15 | ||
PCT/EP2013/071423 WO2014060352A1 (fr) | 2012-10-15 | 2013-10-14 | Entraîneur d'air pour systèmes à base de ciment |
EP13779785.8A EP2906513A1 (fr) | 2012-10-15 | 2013-10-14 | Entraîneur d'air pour systèmes à base de ciment |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2906513A1 true EP2906513A1 (fr) | 2015-08-19 |
Family
ID=47191513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13779785.8A Ceased EP2906513A1 (fr) | 2012-10-15 | 2013-10-14 | Entraîneur d'air pour systèmes à base de ciment |
Country Status (4)
Country | Link |
---|---|
US (1) | US10300442B2 (fr) |
EP (1) | EP2906513A1 (fr) |
JP (1) | JP6491599B2 (fr) |
WO (1) | WO2014060352A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106588116A (zh) * | 2016-12-31 | 2017-04-26 | 南京友西科技股份有限公司 | 一种纳米二氧化硅/十二醇改性复合型发泡剂及制备方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014060352A1 (fr) * | 2012-10-15 | 2014-04-24 | Sika Technology Ag | Entraîneur d'air pour systèmes à base de ciment |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61270247A (ja) * | 1984-11-08 | 1986-11-29 | 山陽国策パルプ株式会社 | 流動化コンクリ−トの製造法 |
US6358310B1 (en) * | 2001-06-14 | 2002-03-19 | W. R. Grace & Co.-Conn. | Air entraining admixture compositions |
WO2011149714A1 (fr) * | 2010-05-25 | 2011-12-01 | W.R. Grace & Co.-Conn. | Additifs antimousse pour compositions cimentaires hydratables |
JP2012210604A (ja) * | 2011-03-31 | 2012-11-01 | Daikin Industries Ltd | 陰イオン界面活性剤含有液の消泡方法およびヘキサフルオロプロピレンオキシドの洗浄方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO119519B (fr) * | 1965-03-25 | 1970-05-25 | Gullhoegens Bruk Ab | |
US4065402A (en) * | 1976-04-29 | 1977-12-27 | Cities Service Company | Tall oil defoamer for high strength acid media |
DE2710355C2 (de) * | 1977-03-10 | 1979-04-05 | Basf Ag, 6700 Ludwigshafen | Verwendung von Melaminderivaten als Schaumdämpfer |
CA1337360C (fr) * | 1989-06-27 | 1995-10-17 | Willis A. Weigand | Adhesifs pour compositions de ciment hydraulique |
AT400564B (de) | 1994-03-31 | 1996-01-25 | Krems Chemie Ag | Luftporenbildner für beton- und mörtelmischungen |
JP3504346B2 (ja) * | 1994-08-12 | 2004-03-08 | 株式会社エヌエムビー | セメント組成物用空気連行剤およびセメント組成物 |
US6875801B2 (en) * | 1999-12-10 | 2005-04-05 | Construction Research & Technology Gmbh | Solubilized defoamers for cementitious compositions |
US20050171325A1 (en) * | 2002-07-04 | 2005-08-04 | Nof Corporation | Cement additive |
FR2887681A1 (fr) | 2005-06-27 | 2006-12-29 | Univ Paris Curie | Fluides conducteurs contenant des particules magnetiques micrometriques |
DE102008018802A1 (de) | 2008-04-15 | 2009-10-22 | Construction Research & Technology Gmbh | Volumen-Fliesenkleber |
US8084521B2 (en) | 2008-04-30 | 2011-12-27 | Wright Advanced Asphalt Systems | System and method for the pre-treatment of rubber-modified asphalt cement, and emulsions thereof |
WO2014060352A1 (fr) * | 2012-10-15 | 2014-04-24 | Sika Technology Ag | Entraîneur d'air pour systèmes à base de ciment |
RU2675116C2 (ru) * | 2013-08-15 | 2018-12-17 | Сикэ Текнолоджи Аг | Воздухововлекающий агент для минеральных вяжущих композиций |
-
2013
- 2013-10-14 WO PCT/EP2013/071423 patent/WO2014060352A1/fr active Application Filing
- 2013-10-14 JP JP2015536175A patent/JP6491599B2/ja active Active
- 2013-10-14 EP EP13779785.8A patent/EP2906513A1/fr not_active Ceased
- 2013-10-14 US US14/426,068 patent/US10300442B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61270247A (ja) * | 1984-11-08 | 1986-11-29 | 山陽国策パルプ株式会社 | 流動化コンクリ−トの製造法 |
US6358310B1 (en) * | 2001-06-14 | 2002-03-19 | W. R. Grace & Co.-Conn. | Air entraining admixture compositions |
WO2011149714A1 (fr) * | 2010-05-25 | 2011-12-01 | W.R. Grace & Co.-Conn. | Additifs antimousse pour compositions cimentaires hydratables |
JP2012210604A (ja) * | 2011-03-31 | 2012-11-01 | Daikin Industries Ltd | 陰イオン界面活性剤含有液の消泡方法およびヘキサフルオロプロピレンオキシドの洗浄方法 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2014060352A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106588116A (zh) * | 2016-12-31 | 2017-04-26 | 南京友西科技股份有限公司 | 一种纳米二氧化硅/十二醇改性复合型发泡剂及制备方法 |
Also Published As
Publication number | Publication date |
---|---|
JP6491599B2 (ja) | 2019-03-27 |
US10300442B2 (en) | 2019-05-28 |
JP2016500720A (ja) | 2016-01-14 |
WO2014060352A1 (fr) | 2014-04-24 |
US20150231585A1 (en) | 2015-08-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60116293T2 (de) | Betonzusammensetzung und verfahren zur herstellung derselben | |
DE102005060947A1 (de) | Pulverförmige Polykondensationsprodukte | |
DE3121814A1 (de) | "zusatzmischung fuer zement" | |
EP2430093B1 (fr) | Dispersions aqueuses de polymères | |
CH689619A5 (de) | Luftporenbildendes Zusatzmittel. | |
EP2914560A1 (fr) | Auxiliaire de broyage pour clinker de ciment à base d'éthers de polycarboxylate et/ou de sulfonates de lignine | |
EP2746237A1 (fr) | Activateur pour ciment | |
DE102010034874B4 (de) | Mineralische Bindemittelzusammensetzung und diese enthaltende bauchemische Produkte | |
EP1004555B1 (fr) | Composition de liant hydraulique à prise rapide | |
EP2609055B1 (fr) | Accélérateur | |
EP3142989B1 (fr) | Accélérateur de prise et de durcissement stabilisé pour liant hydraulique | |
DE19854478C2 (de) | Verwendung einer sulfatträgerfreien hydraulischen Injektions-Bindemittelzusammensetzung | |
EP2906513A1 (fr) | Entraîneur d'air pour systèmes à base de ciment | |
DE19854476A1 (de) | Hydraulische Bindemittelzusammensetzung sowie deren Verwendung | |
DE1238831B (de) | Verfahren zur Herstellung von leicht verteilbarem Zement | |
EP3033313B1 (fr) | Entraîneur d'air pour compositions de liant minérales | |
EP3601194A1 (fr) | Accélérateur en poudre et composition liante à prise rapide | |
EP1072566B9 (fr) | Mélange de liant hydraulique à durcissement rapide et procédé pour sa préparation | |
EP2744770B1 (fr) | Saccharose enzymatique inversée comme agent de dispersion | |
DE19633447A1 (de) | Schnellerhärtende hydraulische Bindemittelmischung | |
DE69701507T2 (de) | Verflüssigungszusammensetzung für zementzusammensetzungen | |
EP4021865A1 (fr) | Additif pour compositions de liant minéral | |
DE102016001761A1 (de) | Formulierung einer schnellerstarrenden Betonmischung und Verfahren zur Anwendung | |
EP1331209A2 (fr) | Procédé pour mélanger un mortier ou un mortier-colle en verre soluble et fines, ainsi que matériau de construction sec pour utiliser ce procédé | |
EP3222600A1 (fr) | Composition de beton a sechage rapide |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20150515 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20160510 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20191110 |