DE1197374B - Method of oil-fixing concrete - Google Patents
Method of oil-fixing concreteInfo
- Publication number
- DE1197374B DE1197374B DEB73613A DEB0073613A DE1197374B DE 1197374 B DE1197374 B DE 1197374B DE B73613 A DEB73613 A DE B73613A DE B0073613 A DEB0073613 A DE B0073613A DE 1197374 B DE1197374 B DE 1197374B
- Authority
- DE
- Germany
- Prior art keywords
- concrete
- oil
- cement
- fixing concrete
- acid
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 4
- 229920002845 Poly(methacrylic acid) Polymers 0.000 claims description 5
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 229920002125 Sokalan® Polymers 0.000 claims description 2
- -1 alkali metal salts Chemical class 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000004584 polyacrylic acid Substances 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 239000004568 cement Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 5
- 235000012241 calcium silicate Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229920000193 polymethacrylate Polymers 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229940009827 aluminum acetate Drugs 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002939 oilproofing Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Verfahren zum ölfestmachen von Beton Die Böden von Werkstätten, Fabrikhallen sowie von anderen gewerblich genutzten Räumen werden heute immer mehr aus Zementestrichen hergestellt. Weiterhin werden Flugzeupisten aus Beton gebaut. Sofern auf diese Betonböden Mineralöle, Treibstoffe und andere Kohlenwasserstoffe sowie allgemein organische Lösungsmittel fließen, tritt bekanntlich die Schwierigkeit auf, daß diese verhältnismäßig niedrigviskosen organischen Substanzen schnell in das Beton- bzw. Zementgefüge eindringen und dadurch die Festigkeit des Betons vermindern. Beton ist bekanntlich ein mehr oder weniger poröses Gefüge aus Calciumsilikat und Calciumhydroxyd sowie entsprechender Calciumaluminate in wechselnd hydratisierter Form in Verbindung mit Zuschlägen. Um die Poren in diesem im Gelzustand oder auch mikrokristallinen Zustand befindlichen Gefüge auszufüllen, behandelt man Betonflächen bekanntlich mit Metallsilikofluoriden, wodurch sich äußerst schwer lösliches Calciumfluorid innerhalb der Betonporen bildet. Ein so behandelter Beton ist weitgehend wasserdicht oder allgemein dicht gegenüber Lösungsmitteln, die wasserähnlichen Charakter haben. Dagegen bleibt der Beton noch immer durchlässig für Kohlenwasserstoffe höherer und niederer Viskosität.Method of oil-proofing concrete The floors of workshops, factory halls as well as other commercially used rooms are nowadays increasingly made of cement screeds manufactured. Aircraft runways are also being built from concrete. Unless on these concrete floors Mineral oils, fuels and other hydrocarbons as well as generally organic ones Solvent flow, is known to have the problem that this is proportionate low-viscosity organic substances quickly penetrate the concrete or cement structure and thereby reduce the strength of the concrete. As is well known, concrete is one more thing or less porous structure of calcium silicate and calcium hydroxide as well as corresponding Calcium aluminates in alternately hydrated form in conjunction with supplements. Around the pores in this in the gel state or also in the microcrystalline state As is well known, concrete surfaces are treated with metal silicofluorides to fill the structure, as a result, calcium fluoride, which is extremely difficult to dissolve, forms within the concrete pores. A concrete treated in this way is largely watertight or generally impermeable to it Solvents that are similar to water in character. In contrast, the concrete still remains always permeable to hydrocarbons of higher and lower viscosity.
Seit einigen Jahren benutzt man als Hilfsmittel, um Beton ölfest zu machen, wäßrige Dispersionen auf Basis von Polyvinylacetat und Polyvinylpropionat, indem man diese Dispersionen dem Zement mit seinen Zuschlägen vor dem Abbinden beifügt. Zweifellos füllen die Polymerisatteilchen die Poren innerhalb des Zementmörtels mehr oder minder aus. Offenbar reicht aber die Verbindung zwischen den Polymerisatteilchen und dem hydratisierten Zementgel nicht aus, um dem Eindringen von Mineralölen in die Porenstruktur des Betons genügend Widerstand zu leisten.For some years now it has been used as an aid to make concrete oil-proof make aqueous dispersions based on polyvinyl acetate and polyvinyl propionate, by adding these dispersions to the cement with its aggregates before it sets. The polymer particles undoubtedly fill the pores within the cement mortar more or less off. Apparently, however, the connection between the polymer particles is sufficient and the hydrated cement gel does not prevent the penetration of mineral oils in the pore structure of the concrete to provide sufficient resistance.
Es wurde nun gefunden, daß man fertige Betonböden mit wäßrigen Lösungen der Alkalisalze der Polymethacrylsäure behandeln kann. Niedrigviskose Lösungen dringen in die obere Schicht des Betonbodens ein unter Ausfüllen der bestehenden Kapillaren und Hohlräume. Fällt man nun das wäßrige Sol der Polymethacrylatsalzlösung mittels Aluminiumacetatlösung, so entsteht das wasserunlösliche Aluminiumsalz der Polymethacrylsäure unter Versiegelung der oberen Betonschicht gegen Heizöle usw. Durch dieses Verfahren wird eine erhebliche Verbesserung der Ölfestigkeit des Betons erzielt. Der Grund für diese Eigenschaft des Aluminiumsalzes der Polymethacrylsäure innerhalb von Betonkörpern dürfte der sein, daß das Natriumpolymethacrylat genügend hydrophil ist, um sich an das Calciumsilikatgel anzulagern. Durch die nachfolgende Ausfällung mit einem löslichen Aluminiumsalz werden dann die Poren innerhalb des Zementgefüges so ausgefüllt, daß eine Haftung zwischen Calciumsilikatgel und Poren ausfüllendem Agenz bestehenbleibt. Diese Haftung und Adhäsion des Aluminiumpolymethacrylates an die Calciumsilikate und Aluminate des Betons wird noch durch Wasserstoffbrücken begünstigt.It has now been found that finished concrete floors can be made with aqueous solutions the alkali salts of polymethacrylic acid can treat. Low-viscosity solutions penetrate into the upper layer of the concrete floor, filling in the existing capillaries and cavities. If you now precipitate the aqueous sol of the polymethacrylate salt solution by means of Aluminum acetate solution, the water-insoluble aluminum salt of polymethacrylic acid is formed with sealing of the upper concrete layer against heating oils etc. By this procedure a significant improvement in the oil resistance of the concrete is achieved. The reason for this property of the aluminum salt of polymethacrylic acid within concrete bodies should be that the sodium polymethacrylate is sufficiently hydrophilic to be to attach to the calcium silicate gel. By the subsequent precipitation with a soluble aluminum salt, the pores within the cement structure are then filled in such a way that that an adhesion between calcium silicate gel and pore-filling agent remains. This adhesion and adhesion of the aluminum polymethacrylate to the calcium silicates and aluminates in concrete are favored by hydrogen bonds.
Beispiel Eine 1- bis 5% Lösung (je nach Polymerisaionsgrad) der Natriumsalze von Polyacrylsäure, Polymethacrylsäure und/oder Mischpolymerisaten der Acryl- und Methacrylsäure in Wasser trägt man auf einen Zementstrich auf. Nach einigen Stunden ist diese Lösung in die oberen Schichten des Zements eingedrungen. Anschließend fällt man mit einem wasserlöslichen Aluminiumsalz die Polymerisate aus und erhält hierdurch einen weitgehend ölfesten Estrich.Example A 1 to 5% solution (depending on the degree of polymerization) of the sodium salts of polyacrylic acid, polymethacrylic acid and / or copolymers of acrylic and Methacrylic acid in water is applied to a cement line. After a few hours this solution has penetrated the upper layers of the cement. Afterward the polymers are precipitated with a water-soluble aluminum salt and obtained This results in a largely oil-resistant screed.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB73613A DE1197374B (en) | 1960-11-08 | 1960-11-08 | Method of oil-fixing concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB73613A DE1197374B (en) | 1960-11-08 | 1960-11-08 | Method of oil-fixing concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1197374B true DE1197374B (en) | 1965-07-22 |
Family
ID=6977923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB73613A Pending DE1197374B (en) | 1960-11-08 | 1960-11-08 | Method of oil-fixing concrete |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1197374B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3028883A1 (en) * | 1979-08-02 | 1981-02-19 | Gen Electric | Rock or stone with improved resistance to environmental degradation - prepd. by treating with aq. polyelectrolyte soln. esp. polyethyleneimine |
-
1960
- 1960-11-08 DE DEB73613A patent/DE1197374B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3028883A1 (en) * | 1979-08-02 | 1981-02-19 | Gen Electric | Rock or stone with improved resistance to environmental degradation - prepd. by treating with aq. polyelectrolyte soln. esp. polyethyleneimine |
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