FI92216C - Fire Protection Coating Composition - Google Patents
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- FI92216C FI92216C FI933526A FI933526A FI92216C FI 92216 C FI92216 C FI 92216C FI 933526 A FI933526 A FI 933526A FI 933526 A FI933526 A FI 933526A FI 92216 C FI92216 C FI 92216C
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- 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
- C09K21/00—Fireproofing materials
- C09K21/02—Inorganic materials
- C09K21/04—Inorganic materials containing phosphorus
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Description
9221692216
PALONSUOJAPINNOITEKOOSTUMUSFIRE PROTECTIVE COATING COMPOSITION
Keksinto koskee pinnoitekoostumusta erilaisten rakennuselementtien, erityisesti teråsrakenteiden, 5 palonsuojaamista vårten.The invention relates to a coating composition for fire protection of various building elements, in particular steel structures.
Nykyisin rakennuselementtien palonsuojaukseen voidaan kayttaå mm. palonsuojamaaleja ja palonsuojamas-so ja.At present, fire protection of building elements can be used e.g. fire-fighting paints and fire-fighting paints.
Palonsuojamaalien palonsuojaominaisuudet pe-10 rustuvat tavallisesti siihen, ettå ne kuumuessaan pai-suvat. Palonsuojamaalit sisåltåvåt yleenså orgaanisia yhdisteitå, jolloin orgaaniset komponentit reagoivat låmmon vaikutuksesta keskenåån ja lopputuloksena syntyy hiiltynyt huokoinen vaahtokerros, joka toimii eristeenå 15 ja suojaa rakenteita yleensa n. 30 min saakka.The fire protection properties of fire protection paints are usually based on the fact that they expand when heated. Fire protection paints usually contain organic compounds, in which case the organic components react with each other under the influence of heat and the result is a carbonized porous foam layer which acts as an insulator 15 and usually protects the structures for about 30 minutes.
Vastaavanlaisiin palotilanteessa mahdollisesti paisuviin eristysmateriaaleihin kuuluu myos materiaa-lit, jotka sisåltåvåt vesilasia, so. alkalimetallisili-kaattia, ja joita voidaan kåyttåå rakennuselementtien 20 paållysteenå tai liimana. Esimerkiksi patenttijulkai-sussa DE 3506132 on esitetty paållysteenå tai liimana kåytettåvå massa, joka sisåltåå mm. vesilasia ja or-gaanista sideainetta. Hakemusjulkaisussa FI 921492 on esitetty sideaine, joka sisåltåå alkalimetallisilikaat-. . 25 tia ja hapolla kåsiteltyå tåyteainetta, sekå tållaista sideainetta sisåltåvå paisuva koostumus.Similar insulation materials that may swell in the event of a fire also include materials that contain water glass, i. alkali metal silicate, and which can be used as a coating or adhesive for building elements 20. For example, DE 3506132 discloses a pulp to be used as a coating or adhesive, which contains e.g. water glass and an organic binder. The application publication FI 921492 discloses a binder containing alkali metal silicate. . 25 and an swellable composition comprising an acid-treated filler and such a binder.
Edelleen, patenttijulkaisussa FI 86738 on kuvattu påållysteenå tai liimana kåytettåvå seos, joka sisåltåå vesilasia ja masuunikuonaa siten, ettå vesila-30 sin osuus on 65 - 99 p-% ja masuunikuonan osuus on 0,5 - 30 p-%. Sovellutusesimerkeisså seos sisåltåå myos selluloosaa. Seoksen tavoitteellinen suojausaika on suuruusluokkaa n. 25 min.Furthermore, patent publication FI 86738 describes a mixture to be used as a coating or adhesive, which contains water glass and blast furnace slag such that the proportion of water-slag is 65 to 99% by weight and the proportion of blast furnace slag is 0.5 to 30% by weight. In the application examples, the mixture also contains cellulose. The target protection time of the mixture is of the order of approx. 25 min.
Tunnettujen vesilasia sisåltåvien eristysma-35 teriaalien epåkohtana on, ettå vesilasi ei kestå hyvin kuumuutta, vaan se kuumuessaan alkaa sulaa rikkoen eristysmateriaalin pinnan ja siten lyhentåå pinnoitteen 2 92216 palonsuoja-aikaa. Siten vesilasia sisåltåvat eristysmateriaalit ovat yleensa soveltuneet vain suo-javerhousmateriaaleiksi.The disadvantage of the known water-containing insulation materials is that the water glass does not withstand heat well, but when it starts to heat it melts, breaking the surface of the insulation material and thus shortening the fire protection time of the coating 2,92216. Thus, insulating materials containing water glass are generally only suitable as protective cladding materials.
Erilaisista eristysmateriaaleista mainittakoon 5 viela patenttijulkaisu US 4909845, jossa on esitetty tuki-/tiivistysmateriaali kåytettåvåksi kaivoksissa. Ko. materiaali sisåltåå 40 - 95 p-% vesilasia, 0.05 - 4 p-% perliittia ja mineraalihappoa ja sillå on lisåksi lyhyt palonsuojavaikutus suojaverhousmateriaalien ta-10 paan. Edelleen, patenttijulkaisussa US 5045385 on esitetty kovetettu ja puristettu suojaverhoiluelementti, joka koostuu vermikuliitista tai perliitista, lasi-kuiduista, vesilasisideaineesta ja kovettuvista feno-lihartseista. Naillå esiintyy edellå mainittuja epå-15 kohtia, ja ne edustavat låhinnå suojaverhousmateriaa-le ja.Of the various insulation materials, mention may be made of U.S. Pat. No. 4,990,945, which discloses a support / sealing material for use in mines. Ko. the material contains 40 to 95% by weight of water glass, 0.05 to 4% by weight of perlite and mineral acid and also has a short fire-retardant effect on the type of protective cladding materials. Further, U.S. Pat. No. 5,045,385 discloses a cured and pressed protective upholstery element consisting of vermiculite or perlite, glass fibers, a water glass binder and curable phenolic resins. These have the aforementioned drawbacks and are mainly representative of the cladding material and.
Palonsuojamassojen palonsuojaominaisuus perus-tuu puolestaan etupååsså alhaiseen låmmonjohtavuuteen. Nykyisin kåytetyt massat ovat påaasiassa paisutettua 20 vermikuliittia sisaltavia eristemassoja. Eristemassojen tavoitteellinen suoja-aika on suojaverhousmateriaalien suoja-aikoja pidempi.The fire protection property of fire protection masses, on the other hand, is mainly based on low thermal conductivity. The pulps currently used are mainly expanded insulation compounds containing expanded vermiculite. The target protection time of insulation compounds is longer than the protection times of protective cladding materials.
Esimerkkinå teråksen palonsuojamassoista mainittakoon hakemusjulkaisussa EP 400162 kuvattu massa, : 25 jossa vermikuliittia on korvattu halvemmilla raaka- aineilla. Massa ei paisu palotilanteessa. Teråksen \ palonsuojaukseen suositellaan eristepaksuuksia suu-ruusluokkaa n. 1-2 tuumaa, mi tå voidaan pitåå epå-kåytånndllisenå.An example of a fire retardant for steel is the mass described in EP 400162, in which vermiculite has been replaced by cheaper raw materials. The mass does not swell in a fire situation. For steel \ fire protection, insulation thicknesses of the order of approx. 1-2 inches are recommended, which can be considered impractical.
30 Patenttijulkaisussa US 4118325 on esitetty ruiskutettava palonsuo japinnoite, joka sisåltåå huo-koistettua vesilasimatriisia ja paisuttamatonta raakaa vermikuliittia tai paisuttamatonta perliittiå. Huo-koistettu vesilasimatriisi on muodostettu alkalimetal-35 lisilikaatista, natriumsilikofluoridista, geeliyttå-våstå aineesta, kuten matalamolekyylipainoisesta ami-·< dista tai haloalkoholista, sekå kuidusta, kuten lasi- li 3 92216 kuidusta. Nykyinen lainsaadanto huomioiden koostumuksen haitallisia komponentteja ovat lasikuitu ja natriumsi-likofluoridi, joka palotilanteessa muodostaa myrkylli-sia fluoriyhdisteitå.U.S. Pat. No. 4,113,325 discloses an sprayable fire retardant coating comprising a porous water glass matrix and unexpanded crude vermiculite or unexpanded perlite. The porous water glass matrix is formed of an alkali metal silicate, sodium silicofluoride, a gelling agent such as a low molecular weight amide or haloalcohol, and a fiber such as glass 3,92216. In view of the current legislation, the harmful components of the composition are glass fiber and sodium silicofluoride, which in the event of fire form toxic fluorine compounds.
5 Patenttijulkaisussa FI 73716 on lisaksi esi- tetty korroosio- ja palonsuojaukseen kaytettåva poly-meerisen sideaineen vesidispersiolateksi ja vermiku-liittitåyteaine.FI 73716 further discloses an aqueous dispersion latex of a polymeric binder and a vermiculous filler for use in corrosion and fire protection.
Vermikuliittipohjaisten palonsuojamassojen 10 epakohtana on, ettå pinnoitteesta taytyy tehdå suh-teellisen paksu pidempiaikaisen palonsuojan saamiseksi. Lisaksi tållaisten pinnoitteiden mekaanisessa lujuudes-sa on vielå parantamista.The disadvantage of vermiculite-based fire protection compositions 10 is that the coating must be made relatively thick in order to obtain a longer-term fire protection. In addition, there is still room for improvement in the mechanical strength of such coatings.
Esilla olevan keksinnon tarkoituksena on 15 poistaa edellå mainitut epåkohdat.The object of the present invention is to eliminate the above-mentioned drawbacks.
Keksinnon tarkoituksena on erityisesti tuoda esiin palonsuojapinnoitekoostumus, jolla aikaisempiin koostumuksiin nåhden uudenlaisen aineosien yhdistelmån ansiosta aikaansaadaan palonsuojapinnoite, joka tarttuu 20 erinomaisesti kohteen pintaan, on mekaanisesti luja ja jolla voidaan saavuttaa våhintåån yhden tunnin palon-suoja.It is a particular object of the invention to provide a fire protection coating composition which, thanks to a novel combination of ingredients compared to previous compositions, provides a fire protection coating which adheres excellently to the surface of the object, is mechanically strong and can achieve at least one hour of fire protection.
Keksinnolle tunnusomaisten seikkojen osalta viitataan patenttivaatimuksiin.For aspects of the invention, reference is made to the claims.
. 25 Keksinto perustuu ideaan yhdistaa modifioitu vesilasi, so. silikofosfaatti, masuunikuona ja vermi-kuliittirikaste sekå mahdollisesti flogopiitti ja/tai pigmentti keskenåån siten, etta saadaan uudenlainen palonsuo japinnoite, joka palotilanteessa paisuu pyroplas-30 tisten ominaisuuksiensa ansiosta ja tuottaa lisaksi : yllåttåvån pitkåkestoisen palonsuojan.. The invention is based on the idea of combining a modified water glass, i. silicophosphate, blast furnace slag and vermiculite concentrate, and possibly phlogopite and / or pigment together, so as to obtain a new type of fire protection coating which swells in the event of a fire due to its pyroplastic properties and in addition produces: surprisingly long-lasting fire protection.
Keksinnon mukaisessa palosuojapinnoitekoostu-muksessa sideaineena toimivan silikofosfaatin osuus on 43 - 76 p-%, edullisesti 46 - 65 p-%, ja ma- 35 suunikuonasta ja vermikuliitista sekå mahdollisesti flogopiitista ja/tai pigmentista koostuvan jauhemaisen tåyteaineen osuus on 24 - 57 p-%, edullisesti 35 - 50 4 92216 p-%, koostumuksen painosta.The proportion of silicophosphate as a binder in the fire protection coating composition according to the invention is 43 to 76% by weight, preferably 46 to 65% by weight, and the proportion of powdered filler consisting of machine slag and vermiculite and possibly phlogopite and / or pigment is 24 to 57% by weight. , preferably 35 to 50 4 92216 wt%, by weight of the composition.
Tayteaineseos sisaltaa edullisesti hienoksi jauhettua masuunikuonaa 5-15 p-%, edullisenunin 8 -14 p-%, vermikulilttirikastetta 5-30 p-%, edullisem-5 min 8-14 p-%, flogopiittia 0-15 p-%, edullisemmin 8 - 14 p-%, pigmenttia 0-9 p-%, edullisenunin 5-8 p-%, koostumuksen painosta.The filler mixture preferably contains finely ground blast furnace slag 5-15% by weight, preferably kiln 8-14% by weight, vermiculite concentrate 5-30% by weight, more preferably 5 min 8-14% by weight, phlogopite 0-15% by weight, more preferably 8 - 14% by weight, pigment 0-9% by weight, preferably 5-8% by weight, by weight of the composition.
Keksinnon mukainen palonsuojapinnoite sisåltåå edullisesti myos kovetinta 2-10 p-%, edullisemmin 4 -10 8 p-%, kuten 4-6 p-%, sideaineen painosta.The flame retardant coating according to the invention preferably also contains a hardener of 2 to 10% by weight, more preferably 4 to 10% by weight, such as 4 to 6% by weight, of the weight of the binder.
Silikofosfaattisideaine on saatu antamalla vesilasin, jolla tarkoitetaan tassa yhteydesså alkali-metallisilikaattia, kuten natrium- tai kaliumsilikaat-tia, reagoida kaliumtripolyfosfaatin kanssa kohotetussa 15 låmpdtilassa. Låhtoaineena kåytettåvån vesilasin tiheys on edullisesti våhintåån suuruusluokkaa 1.4 g/cm3. Kaliumtripolyfosfaattia kåytetåån n. 7 - 10 p-% vesilasin painosta.The silicophosphate binder is obtained by reacting a glass of water, which in this connection means an alkali metal silicate, such as sodium or potassium silicate, with potassium tripolyphosphate at an elevated temperature. The density of the water glass used as a starting material is preferably at least on the order of 1.4 g / cm 3. Potassium tripolyphosphate is used in an amount of about 7 to 10% by weight of water glass.
Keksinndn mukaisessa palonsuojapinnoitekoos-20 tumuksessa silikofosfaatin on havaittu tunkeutuvan erittåin hyvin jauhemaisen tayteaineen rakeiden valiin, mikå vaikuttaa edullisesti koostumuksesta muodostetta-van pinnoitteen eheyteen ja jatkuvuuteen. Kaytetty sideaine toimii lisåksi plastisoivana aineena lisåten 25 muodostettavan pinnoitteen lujuutta. Edelleen, koostu-muksen sisåltåmå silikofosfaatti keståå esim. modifoi-matonta vesilasia paremmin korkeita låmpotiloja.In the flame retardant coating composition according to the invention, silicophosphate has been found to penetrate a very good selection of granules of the powdered filler, which advantageously affects the integrity and continuity of the coating formed from the composition. The binder used also acts as a plasticizer, increasing the strength of the coating to be formed. Furthermore, the silicophosphate contained in the composition withstands e.g. unmodified water glass better than high temperatures.
Masuunikuonana kåytetåån edullisesti granu-loitua masuunikuonaa, jonka raekoko on alle n. 0,5 mm.The blast furnace slag used is preferably granulated blast furnace slag having a grain size of less than about 0.5 mm.
30 Masuunikuona vaikuttaa erittåin edullisesti muodostettavan pinnoitteen paisuvuusominaisuuksiin ja pinnoit-teen lujuuteen.Blast furnace slag has a very advantageous effect on the swelling properties of the coating to be formed and on the strength of the coating.
Vermikuliittirikaste on edullisesti paisutet-tua vermikuliittia, jonka raekoko on alle η. 1 mm.The vermiculite concentrate is preferably expanded vermiculite with a grain size of less than η. 1 mm.
35 Vermikuliittirikaste voidaan korvata osaksi halvemmalla raaka-aineella, kuten flogopiitilla. Vermikuliittia ja flogopiittia kåytetåån keksinnon mukaisessa koostumuk-35 Vermiculite concentrate can be partially replaced by a cheaper raw material such as phlogopite. Vermiculite and phlogopite are used in the composition of the invention.
IIII
5 92216 sessa låmpoa eriståvana aineena.5,92216 as a heat insulating agent.
Koostumus voi sisaltaa myos pigmenttia halutun vårin tuottamiseksi. Erityisen edullinen pigmentti on sinkkioksidi ja/tai titaanidioksidi, joilla on edulli-5 nen vaikutus palonsuoja-ominaisuuksiin.The composition may also contain a pigment to produce the desired color. A particularly preferred pigment is zinc oxide and / or titanium dioxide, which have a beneficial effect on fire protection properties.
Kovettimella voidaan nopeuttaa muodostettavan pinnoitteen kuivumisnopeutta. Kovettimena voidaan kåy-ttåa mitå tahansa alalia tunnettuja kovettimia, jotka palotilanteessa tuottavat myrkyttomia palamistuotteita. 10 Tallaisista kovettimista mainittakoon esim. kondensoitu alumiinifosfaatti, A1(P03)3, sekå epaorgaaniset ja or-gaaniset hapot, kuten hiilihappo, oksaalihappo, viini-happo jne. Oksaalihappo on erityisen kayttdkelpoinen kovetin.The hardener can be used to accelerate the drying speed of the coating to be formed. Any hardener known in the art which produces non-toxic combustion products in the event of a fire can be used as the hardener. Such hardeners include, for example, condensed aluminum phosphate, A1 (PO3) 3, as well as inorganic and organic acids such as carbonic acid, oxalic acid, tartaric acid, etc. Oxalic acid is a particularly useful hardener.
15 Palonsuojapinnoitekoostumus voi sisaltåa myos muita alalia tunnettuja lisåaineita.The flame retardant coating composition may also contain other additives known in the art.
Kaytånnosså keksinnon mukainen palonsuojapinnoitekoostumus on edullisesti ns. kaksikomponenttival-misteen muodossa, jolloin kuiva tayteaineseos, johon on 20 mahdollisesti seostettu kovetin, ja nestemainen siliko-fosfaattisideaine sekoitetaan keskenåån juuri ennen levittamista kohteen pinnalle.In use, the fire protection coating composition according to the invention is preferably a so-called in the form of a two-component preparation, wherein the dry filler mixture, optionally doped with a hardener, and the liquid silicophosphate binder are mixed together just prior to application to the surface of the subject.
Keksintd koskee myos menetelmaa mainitun pa-lonsuojapinnoitekoostumuksen levittåmiseksi kohteen 25 pinnalle ja menetelmalla muodostettua palonsuojapin-noitetta.The invention also relates to a method of applying said fire protection coating composition to the surface of an object 25 and to a fire protection coating formed by the method.
Edullisen aineosayhdistelmån ja kaytettyjen raekokojen ansiosta palonsuojapinnoiteseosta on helppo kasitellå ja se voidaan levittaa kohteen pinnalle esim. 30 ruiskuttamalla, jolloin pinnoittaminen tapahtuu kåte-vasti ja nopeasti.Thanks to the advantageous combination of ingredients and the grain sizes used, the flame retardant coating mixture is easy to handle and can be applied to the surface of the object, e.g. by spraying, whereby the coating takes place conveniently and quickly.
Kovetinta kåytettaessa nestemainen silikofos-faattisideaine ja kovettimen sisaltåvå tayteaineseos yhdistetåan ja saatu seosmassa levitetåan valittomasti 35 kohteen pinnalle. Levitetyn pinnoitteen kovettuminen kiihtyy silikofosfaattisideaineen reagoidessa kovettimen kanssa, jolloin tapahtuu pinnoitteen kovettumisen 6 92216 måårittåvåå polysilikaattiketjuuntumista. Talloin levi tetyn kerroksen kovettuminen kestaa vain muutaman tunnin, jonka jålkeen kerroksen påålle voidaan levittaa aina uusikerros halutun pinnoitepaksuuden saamiseksi.When the hardener is used, the liquid silicophosphate binder and the filler mixture containing the hardener are combined and the resulting mixture mass is optionally applied to the surface of 35 objects. The curing of the applied coating is accelerated by the reaction of the silicophosphate binder with the hardener, resulting in a polysilicate chain which determines the curing of the coating. In this case, the curing of the applied layer takes only a few hours, after which a new layer can always be applied on top of the layer to obtain the desired coating thickness.
5 Pinnoitteen kuivuessa ja kovettuessa sideaine sitoo tayteaineseoksen rakeet ja silikofosfaattireak-tiotuotteen sisåltåmå kaliumtripolyfosfaatti toimii plastisoivana aineena laukaisten sisaisiå jånnityksiå materiaalissa ja lisåten muodostuvan pinnoitteen me-10 kaanista lujuutta, adheesiota kohteen pintaan sekå låmpotilaerokeståvyyttå.5 As the coating dries and cures, the binder binds the granules of the filler mixture and the potassium tripolyphosphate contained in the silicophosphate reaction product acts as a plasticizer to trigger the internal stresses in the material and increase the strength of the resulting coating.
Minerologisesti kovettunut ja kuivunut keksinnon mukainen palonsuojapinnoite koostuu amorfisesta ja kiteisestå faasista.The mineralologically hardened and dried fire protection coating according to the invention consists of an amorphous and a crystalline phase.
15 Palotilanteessa keksinnon mukainen palon suo japinnoitekoostumus paisuu silikofosfaatin ja masuu-nikuonan vålisestå reaktiosta johtuen. Pinnoite paisuu n. 2 - 2.5-kertaiseksi. Koska silikofosfaatin låmpokes-tåvyys on hyvå, paisunut kerros keståå vesilasia sisål-20 tåviiin paisuviin materiaaleihin nåhden kauemmin kuu-muutta tuottaen pidemmån palonsuojan. Kåytetty vermi-kuliittirikaste ja mahdollisesti kåytetty flogopiitti lisååvåt palonsuojaa toimiessaan låmpoeristeenå. Edel-leen, kun palonsuojapinnoitekoostumus sisåltåå pigment-25 tinå sinkkioksidia, sinkkioksidi reagoi palotilanteessa låmpoå sitovasti muodostaen sinkkisilikaattia, so. willemiittiå.In the event of a fire, the fire protection coating composition of the invention expands due to the reaction between silicophosphate and blast furnace slag. The coating expands approx. 2 - 2.5 times. Because the silicophosphate has a good temperature resistance, the expanded layer will withstand the water-containing expandable materials longer than the heat, providing longer fire protection. The vermi-culite concentrate used and any phlogopite used increase the fire protection when acting as thermal insulation. Furthermore, when the flame retardant coating composition contains Pigment-25 tin zinc oxide, in the event of a fire, the zinc oxide reacts in a heat-binding manner to form zinc silicate, i. willemiittiå.
Keksinnon mukainen palonsuo japinnoitekoostumus ei tuota palotilanteessa myrkyllisiå palamistuotteita.The fire protection coating composition according to the invention does not produce toxic combustion products in the event of a fire.
30 Keksinnon mukaista palonsuojapinnoitekoostu- musta voidaan kåyttåå låmmosså paisuvana palonsuojamas- sana erilaisille rakennuselementeille, erityisesti teråsrakenteille, pitkåkestoisen palonsuojan aikaan- saamiseksi. Keksinnon ansiosta suhteellisen ohut pin- 35 noitekerrospaksuus, suuruusluokkaa 10 - 12 mm, tuottaa våhintåån yhden tunnin palonsuojan.The fire protection coating composition according to the invention can be used as a heat-expanding fire protection composition for various building elements, in particular steel structures, in order to provide long-lasting fire protection. Thanks to the invention, a relatively thin coating layer thickness, of the order of 10 to 12 mm, provides at least one hour of fire protection.
. Keksinnon etuna on vielå, ettå aikaansaadaan . · · li 7 92216 tekniikan tasoon nahden erittain kayttokelpoinen palonsuo japinnoitekoostumus hybdyntåmålla edullista masuuni-kuonaa. Keksinnon mukaisen koostumuksen kåyttokelpoi-suutta lisaå sen ympåristoyståvållisyys.. Another advantage of the invention is that it is provided. Compared to the prior art, a highly useful fire retardant coating composition is combined with low-cost blast furnace slag. The usefulness of the composition according to the invention is enhanced by its environmental friendliness.
5 KeksintbM selostetaan yksityiskohtaisemmin seuraavien esimerkkien avulla. Esimerkit ainoastaan havainnollistavat keksintoå rajoittamatta sita.The invention is illustrated in more detail by the following examples. The examples merely illustrate the invention without limiting it.
Esimerkki 1; Keksinnon mukaisen eraan palonsuojapin-10 noitteen kemiallis-mineralogiset rakennetutkimuksetExample 1; Chemical-mineralogical structural studies of the fire protection surface of the batch according to the invention
Koekappaleet pinnoitettiin ruiskuttamalla palonsuojapinnoitekoostumusta, joka sisalsi: silikofosaattisideainetta 56,25 p-% 15 masuunikuonaa 12,5 vermikuliittirikastetta 12,5 flogopiittia 12,5The test pieces were coated by spraying a flame retardant coating composition containing: silicophosphate binder 56.25 wt% 15 blast furnace slag 12.5 vermiculite concentrate 12.5 phlogopite 12.5
ZnO (GOST 202 - 84) 6,25 (kuiva-aineen osuus 43,75 p-%).ZnO (GOST 202-84) 6.25 (dry matter content 43.75 wt%).
2020
Koostumuksessa kaytetylla jauhetulla masuunikuonalla (Rautaruukki Oy) oli seuraavat ominaisuudet:The ground blast furnace slag (Rautaruukki Oy) used in the composition had the following properties:
Kemiallinen koostumus, %: 25 Na20 0,77Chemical composition,%: 25 Na 2 O 0.77
MgO 10,5 A1203 7,86MgO 10.5 Al 2 O 3 7.86
Fe 0,36 S 1,79 30 CaO 38,9Fe 0.36 S 1.79 30 CaO 38.9
Ti 1,37Ti 1.37
Si02 36,5 8 9221 6SiO 2 36.5 8 9221 6
Raeluokkajakautuma:Raeluokkajakautuma:
Raeluokka Osuus +0,5 mm 0,0 5 +0,297 - 0,5 12,8 +0,210 - 0,297 25,4 +0,149 - 0,210 16,2 +0,105 - 0,149 13,5 +0,074 - 0,105 9,6 10 +0,053 - 0,074 5,3 -0,053 17,3Grain class Proportion +0.5 mm 0.0 5 +0.297 - 0.5 12.8 +0.210 - 0.297 25.4 +0.149 - 0.210 16.2 +0.105 - 0.149 13.5 +0.074 - 0.105 9.6 10 + 0.053 - 0.074 5.3 -0.053 17.3
Kaytetyillå vermikuliittirikasteella ja flogopiitilla oli seuraavat ominaisuudet: 15The vermiculite concentrate and phlogopite used had the following characteristics:
Vermikuliittirikaste KVK-1 Flogopiitti SFE-315 (Kovdor), raekoko alle 1 mm:Vermiculite concentrate KVK-1 Phlogopite SFE-315 (Kovdor), grain size less than 1 mm:
Kemiallinen koostumus, % Kemiallinen koostumus, % 20 Si02 38,62 Si02 40Chemical composition,% Chemical composition,% 20 SiO2 38.62 SiO2 40
Ti02 0,8 MgO 22 A1203 12,15 A1203 16TiO 2 0.8 MgO 22 Al 2 O 3 12.15 Al 2 O 3 16
Fe203 6,29 Fe203 7Fe 2 O 3 6.29 Fe 2 O 3 7
FeO 0,02 K20 + NazO 9 25 CaO 1,82 P205 0,1FeO 0.02 K 2 O + NazO 9 25 CaO 1.82 P 2 O 5 0.1
MgO 27,76 irtopaino K20 0,44 korkeintaan 0,5 g/cm3 vapaata vettå 11,40 9 92216MgO 27.76 loose weight K20 0.44 not more than 0.5 g / cm3 free water 11.40 9 92216
Silikofosfaattisideaine valmistettiin anta-malla natriumvesilasin, jonka tiheys oli vahintåån 1,4 g/cm3, reagoida kaliumtripolyfosfaatin kanssa, jonka osuus oli 7-10 p-% vesilasin painosta, 80 °C låmpo-5 tilassa. Saadun silikofosfaatin kemiallinen koosturnus oli seuraava, %:The silicophosphate binder was prepared by reacting a sodium water glass having a density of at least 1.4 g / cm 3 with potassium tripolyphosphate in a proportion of 7 to 10% by weight of the water glass at a temperature of 80 ° C. The chemical composition of the obtained silicophosphate was as follows,%:
Si02 26,2SiO 2 26.2
Na20 9,5 P205 2,43 10 K20 2,50.Na 2 O 9.5 P 2 O 5 2.43 10 K 2 O 2.50.
Pinnoite kuivattiin. Kovettuneen pinnoitteen kemialliseksi koostumukseksi saatiin:The coating was dried. The chemical composition of the cured coating was obtained:
Komponentti Pitoisuus, % 15 MgO 12,8 A1203 6,25Component Concentration,% 15 MgO 12.8 Al 2 O 3 6.25
Si02 38,3SiO 2 38.3
Fe 1,8Fe 1.8
Na20 7,85 20 P205 2,77Na 2 O 7.85 20 P 2 O 5 2.77
Zn 6,03 K20 5,13Zn 6.03 K 2 O 5.13
CaO 7,58 C 0,4 25 H20 9,5CaO 7.58 C 0.4 H 2 O 9.5
Tiheys 1750 - 1800 kg/m3Density 1750 - 1800 kg / m3
Huokoisuus 11,7 %Porosity 11.7%
Mineraalimååritykset suoritettiin rontgendif-fraktiolla. Kovettunut pinnoite koostui amorfisesta ja 30 kiteisesta faasista. Amorfinen faasi oli kuonaa ja keksinnossa kåytettya modifioitua vesilasia. Kiteisesta faasista tunnistettiin kiille, vermikuliitti, sinkiit-ti, portlandiitti ja kalsiitti. Portlandiitti ja kal-siitti ovat selvia hydraulisten reaktioiden tuotteita. 35 Hydraulisten reaktioiden tuloksena kalsiittia oli muo-dostunut noin 3 %.Mineral determinations were performed on the X-ray diffraction fraction. The cured coating consisted of an amorphous and a crystalline phase. The amorphous phase was slag and the modified water glass used in the invention. From the crystalline phase, mica, vermiculite, zincite, portlandite and calcite were identified. Portlandite and calcite are clear products of hydraulic reactions. As a result of the hydraulic reactions, about 3% of the calcite had formed.
. Myohemmin esimerkisså 5 kuvattavan polttoko- • « 10 92216 keen låpikåyneestå pinnoitteesta identifioitiin mel-liitti, forsteriitti, willemlitti ja kiille.. Mel-lite, forsterite, willemlite and mica were subsequently identified from the through-coating of the combustion sample described in Example 5.
Esimerkki 2: Lisåttyjen kovettimien vaikutuksen tutki-5 minenExample 2: Investigation of the effect of added hardeners
Kokeessa tutkittiin oksaalihapon ja alu-miinifosfaatin (LP-AN 212, Hoesch) vaikutusta keksinnon mukaisen eraan palonsuojapinnoitekoostumuksen kovettu-10 miseen.The experiment investigated the effect of oxalic acid and aluminum phosphate (LP-AN 212, Hoesch) on the curing of a flame retardant coating composition according to the invention.
Kåytetty koostumus sisålsi: silikofosfaattisideainetta 53,1 p-% masuunikuonaa 13,4 vermikuliittirikastetta 13,4 15 flogopiittia 13,4The composition used contained: silicophosphate binder 53.1% by weight blast furnace slag 13.4 vermiculite concentrate 13.4 15 phlogopite 13.4
ZnO 6,7 (kuiva-aineen osuus 46,9 p-%)ZnO 6.7 (dry matter content 46.9 wt%)
Lisattåessa saatuun seokseen oksaalihappoa 3 - 6 p-% sideaineen painosta pinnoitteeksi ruiskutettu 20 seos kovettui muutamassa tunnissa siten, ettå se voi- tiin påållyståå seuraavalla kerroksella. Esim. 4 p-% oksaalihappolisays oli n. 3 - 4 tunnin kuluttua kovet- tanut pinnoitteen riittavåsti siten, etta sen paalle voitiin ruiskuttaa seuraava kerros.Upon addition of 3 to 6% by weight of oxalic acid to the resulting mixture, the mixture sprayed as a coating hardened in a few hours so that it could be coated with the next layer. For example, after 4 to 4 hours, the addition of 4% by weight of oxalic acid had sufficiently cured the coating so that the next layer could be sprayed on it.
, . 25 Alumiinifosfaatti tuotti vastaavat tulokset ' · kåytettåesså sitM hieman suurempia maåria, suuruus-luokkaa 4-8 p-%.,. 25 Aluminum phosphate gave similar results when using sitM slightly higher amounts, on the order of 4-8 wt%.
Esimerkki 3: Keksinnon mukaisten eråiden palosuojapin-30 noitteiden ja vesilasia sideaineena sisaltåvien pin-noitteiden ominaisuuksien tarkasteluExample 3: Examination of the properties of some fire protection coatings according to the invention and coatings containing water glass as a binder
Seuraavin taulukoihin 1 ja 2 on koottu esim-erkkeja keksinnon mukaisilla koostumuksilla muodoste-tuista pinnoitteista ja nåille mååritettyja ominaisuuk-35 sia. Vertailuesimerkkeinå on kaytetty vastaavanlaisia pinnoitteita, joissa sideaineena on kaytetty vesilasia.Tables 1 and 2 below summarize examples of coatings formed with the compositions of the invention and the properties determined therefor. As comparative examples, similar coatings have been used in which water glass has been used as a binder.
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Tulokset osoittavat keksinnon mukaisilla palonsuojapinnoitekoostumuksilla muodostettujen pin-noitteiden edullisuuden. Sita vastoin nåhdaån, etta pinnoitteiden, joissa sideaineena on kåytetty vesila-5 sia, kovettumisaika on pitka ja poltettaessa tållaisia pinnoitteita vesilasilla on taipumus sulaa pinnalta.The results show the advantage of coatings formed with the flame retardant coating compositions of the invention. On the other hand, it is seen that coatings in which water-5 is used as a binder have a long curing time and when such coatings are burned on water glass there is a tendency to melt from the surface.
Esimerkki 4: Keksinnon mukaisen eråån palonsuojapin- noitteen mekaanisia ominaisuuksia 10 Metallialustat pinnoitettiin esimerkissa 2 esitetylla palonsuojapinnoitekoostumuksella.Example 4: Mechanical properties of a fire retardant coating according to an invention 10 Metal substrates were coated with the fire retardant coating composition shown in Example 2.
Tarttuvuus kohteeseen: Menetelma kåsitti pin-noitteen tasaisen irtirepaisyn alustasta, siihen tar-vittavan voiman mittauksen ja rikkoutumistyypin maa-15 rittelyn. Koe suoritettiin viidella naytteellå. Re-paisymurtumislujuuden keskiarvoksi saatiin 46,3 kp/cm2.Adhesion to the object: The method involved the uniform tearing of the pin-off from the substrate, the measurement of the force required for it and the determination of the type of breakage. The experiment was performed on five samples. The average re-expansion breaking strength was 46.3 kp / cm2.
Saatujen tulosten perusteella pinnoitteen tarttuvuus on erinomainen.Based on the results obtained, the adhesion of the coating is excellent.
Pinnoitteen lampotilaerojen kestavyyden koes-20 tus: Pinnoitettua koekappaletta pidettiin 16 h -20 °C lampotilassa, sen jalkeen 8 h +60 °C lampotilassa ja tåmå toistettiin 30 kertaa. Pinnoitteen todettiin py-syvan lujana ilman nåkyviå vioittumisia, sen tartunta metalliin pysyi muuttumattomana.Test of resistance to temperature differences in the coating: The coated test piece was kept at -20 ° C for 16 h, then at +60 ° C for 8 h and repeated 30 times. The coating was found to remain strong without visible damage, its adhesion to the metal remained unchanged.
25 Kovettuneen palonsuojapinnoitteen iskulujuus oli lisåksi erinomainen verrattuna perinteisiin ver-mikuliittipohjaisiin massoihin.In addition, the impact resistance of the cured fire protection coating was excellent compared to traditional vercululite-based compounds.
Esimerkki 5; Polttokokeet 30 Suoritettiin kaksi polttokoetta.Example 5; Combustion tests 30 Two combustion tests were performed.
SEV-standardin 1000-78 kohdan 5.1 vaatimusten "Rakennussuunnittelun palonsuojanormit, rakennusmate-riaalien tulenkeståvyyskoestusmenetelmå" mukainen koe suoritettiin esimerkissa 2 esitetylla palonsuojapinnoi-35 tekoostumuksella. Kokeissa kåytettiin n. 9,9 mm ja 10, 1 mm pinnoitepaksuuksia. Kokeessa ei havaittu palonsuojapinnoitteen lohkeamia, syttymistå, palamista eikå « · 92216 16 savun muodostusta. Ennen palokokeen paåttåmista (η. 70 min) palonsuojapinnoitteen kåyttMytymisessM ei tapahtu-nut oleellisia muutoksia.The test according to the requirements of SEV Standard 1000-78, clause 5.1 "Fire protection standards for building design, fire resistance testing method for building materials" was performed with the fire protection coating composition shown in Example 2. Coating thicknesses of about 9.9 mm and 10.1 mm were used in the experiments. No cracks, ignition, burning or smoke formation of the fire protection coating was observed in the experiment. Prior to the end of the fire test (η. 70 min), there were no significant changes in the use of the fire protection coating.
Toinen polttokoe oli VTT:n Palotekniikan la-5 boratoriossa suoritettu palonkestavyyskoe kuutiouunis-sa. Koe suoritettiin kayttåen ruiskuttamalla suojat-tuja, kuormittamattomia teraslevyjå. Kokeessa sovel-lettiin standardia SFS 4193 (ISO 834, Nordtest-mene-telma NT FIRE 005). Suojaus suoritettiin kolmella 10 ruiskutuskerralla siten, ettS kuiva-aineen ja neste-måisen sideaineen massasuhde oli 1. ruiskutuskerralla 45:55 ja 2. ja 3. ruiskutuskerralla 48:52. Pinnoite-paksuudet ja saadut tulokset kunkin naytteen tapauk sessa on esitetty taulukossa 3.The second combustion test was a fire resistance test in a cube furnace performed at VTT's Fire Technology Laboratory la-5. The experiment was performed using sprayed shielded, unloaded steel plates. The standard SFS 4193 (ISO 834, Nordtest method NT FIRE 005) was used in the experiment. The protection was performed with three injections of 10 so that the mass ratio of dry matter to liquid binder was 45:55 for the first spray and 48:52 for the 2nd and 3rd sprays. The coating thicknesses and the results obtained for each sample are shown in Table 3.
15 TAULUKKO 315 TABLE 3
Aika aXB&SLAMFdTILOJOl KSSKIARVOT (»C) (JA KU. ARVO («C]) fnis) levy 1 Levy 2 levy 3 Levy 4Time aXB & SLAMFd MODES VALUE VALUES (»C) (AND PH. VALUE (« C]) fnis) plate 1 plate 2 plate 3 plate 4
Ter&elevy 5 ·ι Terlalevy 5 ee Ter&alevy 10 m Tor4blevy 10 HTer & elevy 5 · ι Terlalevy 5 ee Ter & alevy 10 m Tor4blevy 10 H
ErlBte 8,9 hi Briste 12,3 ee Briste 8,4 ni Briste 11,7 n 0 20 20 20 20 10 101 (101) 73 (76) 92 (97) 63 (64) 20 146(153 ) 97 (100) 135 (135) 101 (101) ' 30 291 (293) 111 (119) 217 (239) 122 (130) 40 395 (398) 228 (241) 298 (322) 208 (217) 50 481 (485) 330 (344) 375 (398) 291 (303) 80 918 ( 926 ) 660 ( 668 ) 765 ( 799) 694 ( 749) » 17 9221 6ErlBte 8.9 hi Briste 12.3 ee Briste 8.4 ni Briste 11.7 n 0 20 20 20 20 10 101 (101) 73 (76) 92 (97) 63 (64) 20 146 (153) 97 (100 ) 135 (135) 101 (101) '30 291 (293) 111 (119) 217 (239) 122 (130) 40 395 (398) 228 (241) 298 (322) 208 (217) 50 481 (485) 330 (344) 375 (398) 291 (303) 80 918 (926) 660 (668) 765 (799) 694 (749) »17 9221 6
Polttokokeiden aikana pinnoite alkoi paisua, kun kokeen alusta oli kulunut n. 4 min.During the combustion tests, the coating began to swell after about 4 minutes had elapsed since the beginning of the test.
Haihtuvien haitallisten aineiden erittymistå tutkittaessa ei havaittu haitallisten kaasujen muodos-5 tumista.When examining the excretion of volatile harmful substances, no formation of harmful gases was observed.
Kokeet osoittavat, ettå keksinnon mukaisen palosuojapinnoitteen terasrakenteiden suojauskyky on våhintåån n. Ih.The experiments show that the protection capacity of the steel structures of the fire protection coating according to the invention is at least approx. Ih.
10 Esimerkki 6: Keksinnon mukaisen eråan palonsuojapin-noitemassan valmistus ja saadun massan levitys terås-rakenteen pinnalle 13,4 kg hienoksi jauhettua masuunikuonaa, 13,4 kg vermikuliittirikastetta, 13,4 kg flogopiittia, 6,7 15 kg sinkkioksidia ja 2,1 kg oksaalihappoa (kovetin) sekoitetaan huolellisesti kuulamyllyssa 30 min ajan.Example 6: Preparation of a batch of fire retardant coating composition according to the invention and application of the obtained mass to the surface of a steel structure 13.4 kg of finely ground blast furnace slag, 13.4 kg of vermiculite concentrate, 13.4 kg of phlogopite, 6.7 kg of zinc oxide and 2.1 kg the oxalic acid (hardener) is mixed thoroughly in a ball mill for 30 min.
46,9 kg saatua kuivaa seosta saatetaan jaksottaistoimi-seen sekoittajaan ja joukkoon lisåtaån 53,1 kg silika-fosfaattisideainetta, joka on valmistettu esimerkisså 1 20 esitetyn mukaisesti ja jonka tiheys on 1,48 g/cm3. Seos saatetaan vålittomåsti sinånså tunnettuun ruiskupump-puun ja ruiskutetaan teråsrakenteen pinnalle alan kåy-tånnon mukaisesti. Teråsrakenteissa voi haluttaessa olla pohjamaali. Ruiskutus suoritetaan siten, ettå 25 kerrospaksuudeksi saadaan n. 4 - 5 mm. Pinnoitteen vis-kositeetti on 3 - 4 tunnin kuluttua niin korkea, ettå ruiskutus voidaan toistaa ensimmåisen pinnoitekerroksen påålle. Ruiskutus suoritetaan kaikkiaan 3 kertaa. Tar-vittaessa ruiskutus voidaan suorittaa esim. kahdessa 30 vaiheessa. Tåmån jålkeen pinnoitteen annetaan kuivua. Saadun pinnoitteen paksuudeksi saadaan 10 - 12 mm. Kova pinnoite antaa våhintåan n. Ih palonsuojan.46.9 kg of the dry mixture obtained are introduced into a batch mixer and 53.1 kg of a silica-phosphate binder prepared as described in Example 1 and having a density of 1.48 g / cm 3 are added. The mixture is immediately applied to a syringe pump wood known per se and sprayed on the surface of the steel structure in accordance with the practice in the art. If desired, the steel structures can be primed. The spraying is carried out in such a way that the layer thickness 25 is about 4 to 5 mm. After 3 to 4 hours, the viscosity of the coating is so high that the spraying can be repeated on top of the first coating layer. Spraying is performed a total of 3 times. If necessary, the spraying can be carried out, for example, in two steps. The coating is then allowed to dry. The thickness of the obtained coating is 10 to 12 mm. The hard coating provides at least approx. Ih fire protection.
Keksinnon mukaisen palonsuojapinnoitemassan eråånå etuna on sen nopea kovettuminen, joten tarvit-35 tavat ruiskutuskerrat voidaan suorittaa esim. yhden tyovuoron aikana.One advantage of the fire protection coating composition according to the invention is its fast curing, so that the required spraying operations can be carried out, for example, during one shift.
Claims (14)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI933526A FI92216C (en) | 1993-08-10 | 1993-08-10 | Fire Protection Coating Composition |
DE4495790T DE4495790T1 (en) | 1993-08-10 | 1994-08-10 | Flame retardant coating preparation |
PCT/FI1994/000346 WO1995004792A1 (en) | 1993-08-10 | 1994-08-10 | Fireproofing coating formulation |
AU74613/94A AU7461394A (en) | 1993-08-10 | 1994-08-10 | Fireproofing coating formulation |
SE9600301A SE9600301L (en) | 1993-08-10 | 1996-01-29 | Preparation for refractory coating |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI933526A FI92216C (en) | 1993-08-10 | 1993-08-10 | Fire Protection Coating Composition |
FI933526 | 1993-08-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI933526A0 FI933526A0 (en) | 1993-08-10 |
FI92216B FI92216B (en) | 1994-06-30 |
FI92216C true FI92216C (en) | 1994-10-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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FI933526A FI92216C (en) | 1993-08-10 | 1993-08-10 | Fire Protection Coating Composition |
Country Status (5)
Country | Link |
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AU (1) | AU7461394A (en) |
DE (1) | DE4495790T1 (en) |
FI (1) | FI92216C (en) |
SE (1) | SE9600301L (en) |
WO (1) | WO1995004792A1 (en) |
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CN115181437B (en) * | 2022-07-29 | 2023-06-06 | 攀钢集团研究院有限公司 | Heavy rail steel billet decarburization-preventing coating and preparation and application methods thereof |
CN115385665B (en) * | 2022-09-15 | 2023-06-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Anti-adhesion method for blast furnace slag chute |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FI86738C (en) * | 1988-08-05 | 1992-10-12 | Partek Ab | Active Fire retardants |
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1993
- 1993-08-10 FI FI933526A patent/FI92216C/en active
-
1994
- 1994-08-10 DE DE4495790T patent/DE4495790T1/en not_active Withdrawn
- 1994-08-10 AU AU74613/94A patent/AU7461394A/en not_active Abandoned
- 1994-08-10 WO PCT/FI1994/000346 patent/WO1995004792A1/en active Application Filing
-
1996
- 1996-01-29 SE SE9600301A patent/SE9600301L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
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SE9600301D0 (en) | 1996-01-29 |
FI92216B (en) | 1994-06-30 |
SE9600301L (en) | 1996-02-12 |
FI933526A0 (en) | 1993-08-10 |
AU7461394A (en) | 1995-02-28 |
DE4495790T1 (en) | 1996-11-14 |
WO1995004792A1 (en) | 1995-02-16 |
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