EP1888478A1 - Verwendung von epoxy-derivaten als zusatzmittel für zementäre baustoffmassen - Google Patents
Verwendung von epoxy-derivaten als zusatzmittel für zementäre baustoffmassenInfo
- Publication number
- EP1888478A1 EP1888478A1 EP06724822A EP06724822A EP1888478A1 EP 1888478 A1 EP1888478 A1 EP 1888478A1 EP 06724822 A EP06724822 A EP 06724822A EP 06724822 A EP06724822 A EP 06724822A EP 1888478 A1 EP1888478 A1 EP 1888478A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fatty acid
- diglycidyl ether
- acid
- use according
- oil fatty
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
- C08G59/4207—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof aliphatic
-
- 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
- C04B24/281—Polyepoxides
-
- 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
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/21—Efflorescence resistance
Definitions
- the present invention relates to the use of epoxy derivatives as additives for cementitious building materials (such as concrete or mortar), which is used in particular for the mass hydrophobization and / or for the suppression of efflorescence on surfaces of hardened cementitious building materials.
- a well-known problem with cement-based building materials is the occurrence of so-called efflorescence, where a distinction is made between primary and secondary efflorescence.
- the former are already formed during curing, for example, in concrete, wherein the capillaries of the fresh concrete are filled with an aqueous solution of the water-soluble substances of the cement, essentially calcium hydroxide.
- the calcium hydroxide on the concrete surface reacts with the carbon dioxide in the air to form sparingly soluble calcium carbonate.
- Due to the precipitation of calcium carbonate the calcium hydroxide concentration at the capillary mouth is lower than inside the capillaries. Therefore, new calcium hydroxide constantly passes through diffusion from the deeper layers of the concrete to the capillary mouth and in turn reacts with CO 2 to form calcium carbonate.
- the present invention therefore an object of the invention to provide a means for preventing efflorescence on surfaces of hardened cementitious building materials and / or mass hydrophobization, which does not have the disadvantages of the prior art, but effectively and reliably prevents the efflorescence of cementitious building materials.
- This object is achieved in accordance with the invention by using epoxy derivatives as additives for cementitious building materials which are prepared by reacting a di-, tri- or tetraglycidyl compound (A) with an optionally unsaturated reactive component (B) consisting of a C 8 -C 2 8 fatty acid, a C 8 -C 2 ⁇ -alcohol or a C 8 -C 2 8 secondary amine have been prepared.
- epoxy derivatives are outstandingly suitable as agents for preventing efflorescence and / or for hydrophobicizing cementitious building materials.
- cementitious products by the additives according to the invention absorb significantly less water, which can significantly reduce frost damage and rapid rusting of the reinforcing steel.
- epoxy derivatives are used which have been prepared by reacting a di-, tri- or tetraglycidyl compound (A) with a reactive component (B).
- glycidyl compounds which are selected from the group cyclohexane-dimethanol-diglycidyl ether, glycerol triglycidyl ether, neopentyl glycol diglycidyl ether, pentaerythritol tetraglycidyl ether, 1, 6-hexanediol diglycidyl ether, polypropylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether , trimethylolpropane triglycidyl ether, bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, 4,4'-methylenebis (N, N-diglycidylaniline), tetraphenylolethane glycidyl ether, N 1 N- Diglycidylaniline, diethylene glycol diglycidyl ether, 1, 4-butanediol diglycidyl ether or
- the reactive component (B) consists of a C 8 -C 28 fatty acid, a C 8 -C 2 S-Al alcohol or a C 8 -C 28 - secondary amine, wherein the reactive component is saturated or unsaturated May have radicals.
- fatty acids are tall oil fatty acid, stearic acid, palmitic acid, sunflower oil fatty acid, coconut oil fatty acid (C 8 -C 8), coconut oil fatty acid (C 2 -C 8), soybean oil fatty acid, linseed oil fatty acid, dodecanoic acid, oleic acid, linoleic acid, palm kernel oil fatty acid, palm oil fatty acid, linolenic acid and / or Arachidonic acid is preferred.
- C 8 -C 28 alcohols especially 1-eicosanol, 1-octadecanol, 1-hexadecanol, 1-tetradecanol, 1-dodecanol, 1-decanol and 1-octanol have been proven.
- the secondary amines having C 8 -C 28 carbon atoms in particular the alkylamines from the group 2-ethylhexylamine, dipentylamine, dihexylamine, dioctylamine, bis (2-ethylhexyl) amine, N-methyloctadecylamine and didecylamine are used.
- the reaction of the glycidyl component (A) with the reactive component (B) at temperatures of 20 to 250 0 C, preferably at 50 to 200 0 C, more preferably at 100 to 180 0 C and most preferably at 140 to 160 0 C, wherein the reaction may optionally be carried out in the presence of a catalyst.
- a catalyst such as tetraalkylammonium halides or alkali metal hydroxides.
- the reaction may be either acid-catalyzed (eg, sulfuric acid, perchloric acid, hydrofluoric acid, boron trifluoride, stannic chloride) or bases catalyzed (For example, alkali metal hydroxides, alkali metal, tertiary amines) are performed.
- acid-catalyzed eg, sulfuric acid, perchloric acid, hydrofluoric acid, boron trifluoride, stannic chloride
- bases catalyzed eg, alkali metal hydroxides, alkali metal, tertiary amines
- the reaction of the glycidyl component (A) with the secondary amines as the reactive component (B) is usually carried out without a catalyst, but small amounts of water or alcohol (eg, phenol) may be added to the reaction mixture.
- the molar ratio of glycidyl component (A) to the reactive component (B) can be varied within wide limits, but it has proved to be particularly advantageous that the reaction takes place in the stoichiometric or nearly stoichiometric ratio.
- 0.9 to 1.1 moles of a reactive component (B) are used per mole of glycidyl radical.
- 1 mole of reactive component (B) is used per mole of glycidyl radical.
- the inventively proposed epoxy derivatives are outstandingly suitable for the mass hydrophobization of cementitious building materials and / or for the suppression of efflorescence on surfaces of hardened cementitious building materials.
- the epoxy derivatives are the uncured cementitious building materials in an amount of 0.001 to 5 wt .-%, more preferably from 0.01 to 1 wt .-%, and most preferably from 0.1 to 0.5 wt. %, based on the cement content added.
- cementitious building materials according to the present invention all concrete and mortar systems are to be regarded as Main binder cement and as a minor constituent may still contain lime, gypsum or anhydrite.
- the epoxy derivatives according to the invention are added directly to the prepared cementitious building materials.
- the additives according to the invention it is also possible within the scope of the present invention for the additives according to the invention to be added to the mixing water or residual water in emulsified form with the aid of external emulsifiers (for example ethoxylated compounds such as fatty acid ethoxylate, ethoxylated castor oil or ethoxylated fatty amine).
- external emulsifiers for example ethoxylated compounds such as fatty acid ethoxylate, ethoxylated castor oil or ethoxylated fatty amine.
- the epoxy derivatives proposed according to the invention are outstandingly suitable as agents for preventing or suppressing efflorescence on surfaces of hardened cementitious building materials and / or for hydrophobicizing the corresponding cementitious systems.
- soybean oil fatty acid (trade name: Nouracid SE 30, from Hanf & Nelles) at room temperature in a reaction vessel, 368.4 g (0.5650 mol) of pentaerythritol tetraglycidyl ether (trade name: Polypox R16, UPPC ), then 1, 0 g (0.0031 mol)
- a fatty acid ethoxylate (trade name: Ethylan A3, AkzoNobel) are introduced into the reaction vessel. Heat the initial charge in the reaction vessel to 45 ° C. and add 120 g of the product from Example 2 over 1 h. The result is a yellowish viscous mixture. Subsequently, 640 g of water are added over 1 h. Finally, a milky white dispersion having a solids content of 15% by weight based on the product from Example 2 is obtained.
- a fatty acid ethoxylate trade name: Ethylan A3, AkzoNobel
- Example 4A 40 g of an ethoxylated castor oil (trade name: Berol 199, AkzoNobel) are introduced into the reaction vessel. Heat the initial charge in the reaction vessel to 45 ° C. and add 120 g of the product from Example 4 over 1 h. The result is a yellowish viscous mixture. Subsequently, 640 g of water are added over 1 h. Finally, a milky white dispersion having a solids content of 15% by weight, based on the product from Example 4, is obtained.
- an ethoxylated castor oil (trade name: Berol 199, AkzoNobel)
- Example 6 60 g of an ethoxylated fatty amine (trade name: Berol 386, AkzoNobel) are introduced into the reaction vessel and heated to 55.degree. Then 120 g of the product from Example 5 are heated to 55 0 C and added over 1 h to the template. The result is a white viscous mixture. Subsequently, 620 g of water are added over 1 h. Finally, a milky white dispersion having a solids content of 15% by weight, based on the product from Example 5, is obtained.
- Example 6 60 g of an ethoxylated fatty amine (trade name: Berol 386, AkzoNobel) are introduced into the reaction vessel and heated to 55.degree. Then 120 g of the product from Example 5 are heated to 55 0 C and added over 1 h to the template. The result is a white viscous mixture. Subsequently, 620 g of water are added over 1 h. Finally, a milky white dispersion having a solid
- a fatty acid ethoxylate (trade name: Ethylan A3, AkzoNobel) are introduced into the reaction vessel. Heat the template in the reaction vessel to 45 ° C. and add 120 g of the product from Example 6 over 1 h. The result is a yellowish viscous mixture. Subsequently, 640 g of water are added over 1 h. Finally, a milky white dispersion having a solids content of 15% by weight, based on the product from Example 6, is obtained.
- a fatty acid ethoxylate trade name: Ethylan A3, AkzoNobel
- the reaction product is a white waxy solid at room temperature, which is better used as an additive in the form of an aqueous emulsion.
- Example 7A
- an ethoxylated fatty amine (trade name: Berol 386, AkzoNobel) are introduced into the reaction vessel and heated to 55.degree. Then 120 g of the product from Ex. 7 are heated to 55 0 C and added over 1 h to the template. The result is a brownish white viscous mixture. Subsequently, 620 g of water are added over 1 h. Finally, a milky white dispersion having a solids content of 15% by weight, based on the product from Example 7, is obtained.
- an ethoxylated fatty amine (trade name: Berol 386, AkzoNobel) are introduced into the reaction vessel and heated to 55.degree. Then 120 g of the product from Ex. 7 are heated to 55 0 C and added over 1 h to the template. The result is a brownish white viscous mixture. Subsequently, 620 g of water are added over 1 h. Finally, a milky white dispersion having a solids content of 15% by weight
- test specimens are prepared by the following method and tested for their flowering behavior:
- a mixture 11 kg is prepared according to the following recipe, wherein all aggregates are first dry-mixed for 10 seconds. Subsequently, the default water is added and mixed for 2 min, then adding the residual water, mixing time 2 min.
- the additive is used in different dosages, based on the cement, in the mixture and added to either the residual water or the concrete mixture.
- the details of the dosage of the additive always refer to solid "additive" to solid "cement”.
- the water content of the additive is subtracted from the amount of mixing water.
- the brightness of the specimens is measured with a Color-Photograph sphere spin (Byk Gardner) (L1), placing a template with 9 measurement points on the specimens so that the same points are measured later in the second measurement. From these 9 points, the mean L1 results.
- the stones are immersed in distilled water for approx. 2 seconds and packed in airtight plastic bags in a moist bag. This bag is stored in the climatic chamber for 10 days. The stones are then unpacked and stored for 2 days in the climatic chamber for drying. Now the brightness of the specimens is measured a second time with stencil and color spectrometer (L 2). For each mixture, 6 test specimens are produced (and the mean value is calculated from this).
- the homogeneity of the surface was also assessed and the water absorption of the specimens determined.
- the dry and cured specimens are weighed (W1) and placed in a water bath so that the underside rests on the point supports and does not touch the bottom of the container. Water level about 5 mm above the highest point of the bottom. After 15 minutes, the specimens are removed from the water bath and weighed a second time (W2). Of the
- Test specimen is previously dried with a damp, wrung sponge.
- the dosages indicate the solids of the additive relative to the cement in the mixture.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Epoxy Resins (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005022852A DE102005022852A1 (de) | 2005-05-18 | 2005-05-18 | Verwendung von Epoxy-Derivaten als Zusatzmittel für zementäre Baustoffmassen |
| PCT/EP2006/004618 WO2006122754A1 (de) | 2005-05-18 | 2006-05-16 | Verwendung von epoxy-derivaten als zusatzmittel für zementäre baustoffmassen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1888478A1 true EP1888478A1 (de) | 2008-02-20 |
Family
ID=36649102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06724822A Withdrawn EP1888478A1 (de) | 2005-05-18 | 2006-05-16 | Verwendung von epoxy-derivaten als zusatzmittel für zementäre baustoffmassen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20090078164A1 (de) |
| EP (1) | EP1888478A1 (de) |
| DE (1) | DE102005022852A1 (de) |
| WO (1) | WO2006122754A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090075053A1 (en) * | 2007-09-19 | 2009-03-19 | Government Of The United States Of America, As | Concrete Having Increased Service Life and Method of Making |
| KR101957938B1 (ko) * | 2018-09-28 | 2019-03-13 | 유재형 | 고유동성 및 접착력이 향상된 셀프 레벨링 바닥용 모르타르 및 그 제조방법 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1113205A (en) * | 1965-08-02 | 1968-05-08 | James Howard Donnelly | Inorganic cement compositions |
| US3477979A (en) * | 1965-11-26 | 1969-11-11 | Shell Oil Co | Epoxy containing concrete |
| CH473143A (de) * | 1966-06-16 | 1969-05-31 | Ciba Geigy | Verfahren zur Modifizierung von Triglycidylisocyanurat |
| US3921847A (en) * | 1972-11-07 | 1975-11-25 | American Can Co | Cemented lap seam container |
| US4108813A (en) * | 1973-12-17 | 1978-08-22 | Albert Lee Roberts | Cementitious flooring composition containing mixture of intermeshing particles of substantially spherical quartz sand |
| US4107112A (en) * | 1975-07-28 | 1978-08-15 | Latta Jr Laurence | Epoxy resin soil stabilizing compositions |
| US4244994A (en) * | 1979-06-21 | 1981-01-13 | Raybestos-Manhattan, Inc. | Laminated aramid fiber friction members |
| DE3231730A1 (de) * | 1982-08-26 | 1984-03-01 | Rütgerswerke AG, 6000 Frankfurt | Mit wasser emulgierbare epoxidharzsysteme und daraus hergestellte waessrige emulsion sowie verfahren zu ihrer herstellung und verwendung |
| DE3820154A1 (de) * | 1988-06-14 | 1989-12-21 | Basf Ag | Waessrige dispersionen von copolymerisaten, die epoxidgruppen enthalten und deren anwendung |
| DE4008988A1 (de) * | 1990-03-21 | 1991-09-26 | Hansit Bauchemie Gmbh & Co Kg | Mittel gegen nitratausbluehungen |
| US5720807A (en) * | 1994-02-22 | 1998-02-24 | Kao Corporation | Hydraulic composition and process for preparing the same |
| DE4418309A1 (de) * | 1994-05-26 | 1995-11-30 | Bayer Ag | Perfluoralkylgruppen enthaltende Harze und deren Verwendung |
| JP3624294B2 (ja) * | 1994-05-28 | 2005-03-02 | 二郎 武居 | ポリマーセメント系複合材 |
| DE19749642A1 (de) * | 1997-11-10 | 1999-05-12 | Basf Ag | Verwendung von wässrigen Zubereitungen, die als filmbildenden Bestandteil ein Copolymer P enthalten |
| DE19858554A1 (de) * | 1998-12-18 | 2000-06-21 | Sueddeutsche Kalkstickstoff | Selbstvernetzende Polyurethan-Polymer-Hybrid-Dispersion |
| US6231665B1 (en) * | 1999-09-22 | 2001-05-15 | W. R. Grace & Co.-Conn. | Efflorescence control in cementitious compositions and masonry units |
| JP3836770B2 (ja) * | 2002-09-12 | 2006-10-25 | 神鋼鋼線工業株式会社 | プレストレストコンクリート緊張材用塗布組成物 |
-
2005
- 2005-05-18 DE DE102005022852A patent/DE102005022852A1/de not_active Withdrawn
-
2006
- 2006-05-16 US US11/919,611 patent/US20090078164A1/en not_active Abandoned
- 2006-05-16 EP EP06724822A patent/EP1888478A1/de not_active Withdrawn
- 2006-05-16 WO PCT/EP2006/004618 patent/WO2006122754A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006122754A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006122754A1 (de) | 2006-11-23 |
| US20090078164A1 (en) | 2009-03-26 |
| DE102005022852A1 (de) | 2006-11-30 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17Q | First examination report despatched |
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| RBV | Designated contracting states (corrected) |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MORARU, BOGDAN Inventor name: ALBRECHT, GERHARD Inventor name: THALER, STEFAN Inventor name: BAUER, MATHIAS Inventor name: NEUER, KATJA Inventor name: INGRISCH, STEFAN |
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| DAX | Request for extension of the european patent (deleted) | ||
| RTI1 | Title (correction) |
Free format text: USE OF EPOXY DERIVATIVES AS ADDITIVES FOR CEMENTITIOUS BUILDING MATERIALS FOR REDUCING EFFLORESCENCE |
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| GRAP | Despatch of communication of intention to grant a patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20111201 |