DE187093C - - Google Patents
Info
- Publication number
- DE187093C DE187093C DENDAT187093D DE187093DA DE187093C DE 187093 C DE187093 C DE 187093C DE NDAT187093 D DENDAT187093 D DE NDAT187093D DE 187093D A DE187093D A DE 187093DA DE 187093 C DE187093 C DE 187093C
- Authority
- DE
- Germany
- Prior art keywords
- hardening
- steam
- plates
- mass
- hydraulite
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000002522 swelling Effects 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims 2
- 235000011116 calcium hydroxide Nutrition 0.000 claims 2
- 239000000920 calcium hydroxide Substances 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- 238000000465 moulding Methods 0.000 claims 2
- 239000000654 additive Substances 0.000 claims 1
- 239000002969 artificial stone Substances 0.000 claims 1
- 239000011455 calcium-silicate brick Substances 0.000 claims 1
- 239000000470 constituent Substances 0.000 claims 1
- 239000011229 interlayer Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000011505 plaster Substances 0.000 claims 1
- 239000004848 polyfunctional curative Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000011230 binding agent Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- JHLNERQLKQQLRZ-UHFFFAOYSA-N Calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000015450 Tilia cordata Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 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
- 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
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- 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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00301—Non-porous materials, e.g. macro-defect free [MDF] products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Producing Shaped Articles From Materials (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- M 187093 KLASSE 80 δ. GRUPPE- M 187093 CLASS 80 δ. GROUP
CT. SPEYERER & CO. in BERLIN.CT. SPEYERER & CO. in Berlin.
mit heißem Wasser oder Wasserdampf.with hot water or steam.
Bei der Herstellung von Platten aus Faserstoffen jeder Art und Zement oder anderen hydraulischen Bindemitteln, welche vornehmlich mittels der Pappenmaschine hergestellt werden, entweder derart, daß man den als Bindemittel dienenden Zement oder dergl. mit dem geholländerten Fasermaterial in einem Rührwerk zu einem Brei innig vermischt und darauf auf einer Pappenmaschine in bekannterIn the manufacture of panels from fiber materials of any kind and cement or other hydraulic binders, which are mainly produced by means of the cardboard machine be, either in such a way that one serves as a binder cement or the like. With intimately mixed with the hollanded fiber material in a stirrer to a pulp and then on a cardboard machine in a familiar
ίο Weise weiter verarbeitet oder derart, daß der Zement oder dergl. dem Faserstoff erst nach dessen Verarbeitung im Holländer auf der Stoffbahn der Pappenmaschine zugeführt wird oder schließlich noch auf andere Weise, mit oder ohne Pappenmaschine, zeigen sich zwei wesentliche Übelstände.ίο processed further or in such a way that the Cement or the like. The fiber only after its processing in the Dutch on the Fabric web is fed to the cardboard machine or finally in another way, with or without a cardboard machine, there are two major evils.
Einmal erfordert das Erhärten der Platten eine lange Zeitdauer und viel Arbeitsaufwand, da dieselben nach der hydraulischen Pressung in besonderen Räumen aufgestapelt werden, in denen sie wochenlang zwecks Lufterhärtung des Zementes bleiben müssen. Sodann besitzen diese langsam gehärteten Platten noch nicht denjenigen Höchstgrad von Dichtigkeit, welcher von solchem wesentlich zur Dachdeckung dienenden Material gefordert werden muß; vielmehr wird diese Dichtigkeit, wie die Erfahrung gelehrt hat, von den Platten erst auf dem Dache, wo sie der Feuchtigkeit, der Luft und dem Regen ausgesetzt sind, allmählich erreicht.On the one hand, the hardening of the plates requires a long period of time and a lot of labor, since they are stacked in special rooms after hydraulic pressing, in which they have to stay for weeks to allow the cement to air harden. Then own these slowly hardened panels do not yet have the highest degree of impermeability which of such material, which is used essentially for roofing, are required got to; on the contrary, as experience has shown, this tightness comes from the plates only on the roof, where they are exposed to moisture, air and rain, gradually reached.
Das Verfahren nach vorliegender Erfindung bezweckt nun, diese Übelstände zu beseitigen HärtungsdauerThe method according to the present invention now aims to eliminate these drawbacks Curing time
und Platten in nur kurzer
und mit Erlangung einer möglichst vollkommenen Dichtigkeit schon während dieser
Härtungsdauer herzustellen.and records in just a short time
and with the achievement of as perfect a tightness as possible to produce during this hardening period.
Man hat bereits versucht, die gepreßten Platten der Einwirkung von heißem Wasser oder Wasserdampf zwecks schnellerer , Erhärtung auszusetzen. Hierbei wird allerdings das hydraulische Bindemittel rasch in Calciumhydrosilikat umgewandelt; auch wird hierbei der Kalk und die Kieselsäure weitergehend zur Aufquellung gebracht als wie es bei der langsamen Härtung lediglich in feuchter Luft der Fall ist, und somit wohl auch eine höhere Dichtigkeit erreicht. Es hat sich aber gezeigt, daß die Aufquellung des Hydraulits in den Platten — und umsomehr, je heißer das Wasser und je höher gespannt der Dampf ist -— eine so starke ist, daß dadurch nicht nur die Poren in der Masse ausgefüllt, sondern die Platten selbst teilweise oder gar völlig aufgetrieben, also unbrauchbar werden.Attempts have already been made to keep the pressed panels exposed to hot water or water vapor for the purpose of quicker exposure to hardening. Here, however the hydraulic binder is rapidly converted into calcium hydrosilicate; also will here the lime and the silica made more swelling than as with the slow curing is only the case in humid air, and thus probably also a higher one Achieved tightness. But it has been shown that the swelling of the hydraulite in the plates - and the more so, the hotter the water and the higher the steam is - is so strong that it not only fills the pores in the mass, but the panels themselves are partially or completely inflated, i.e. unusable.
Um eine Schädigung der Platten zu verhindern, das Aufquellungsbestreben des Hydraulits unter Einwirkung des Wasserdampfes vielmehr für eine höhere Erhärtung und innere Verdichtung der Platten auszunutzen, verfährt man nach vorliegender Erfindung derart, daß man die — an den Seitenflächen vollständig freiliegende — hydraulisch zusammengepreßte Plattensäule zweckmäßig, nachdem die Zusammenpressung beendet, aber der Druck der Presse noch auf der SäuleIn order to prevent damage to the plates, the tendency of the hydraulite to swell under the action of water vapor rather to use for a higher hardening and internal compression of the panels, one proceeds according to the present invention such that one - on the side surfaces completely exposed - hydraulically compressed plate column suitable, after the compression has ended, but the pressure of the press is still on the column
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE187093C true DE187093C (en) |
Family
ID=450812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT187093D Active DE187093C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE187093C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3308917A1 (en) * | 1983-03-12 | 1984-09-13 | G. Siempelkamp Gmbh & Co, 4150 Krefeld | Method and arrangement for the production of hydraulically bonded panels of pressed materials |
AT384985B (en) * | 1985-05-13 | 1988-02-10 | Eternit Werke Hatschek L | Process for producing hydraulically bonded panels, and device for carrying out this process |
FR2781406A1 (en) * | 1998-07-27 | 2000-01-28 | Armines Ass Pour La Rech Et Le | Method for the production of a hardening material, notably cement based, at higher production rates and with improved mechanical characteristics |
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0
- DE DENDAT187093D patent/DE187093C/de active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3308917A1 (en) * | 1983-03-12 | 1984-09-13 | G. Siempelkamp Gmbh & Co, 4150 Krefeld | Method and arrangement for the production of hydraulically bonded panels of pressed materials |
AT384985B (en) * | 1985-05-13 | 1988-02-10 | Eternit Werke Hatschek L | Process for producing hydraulically bonded panels, and device for carrying out this process |
FR2781406A1 (en) * | 1998-07-27 | 2000-01-28 | Armines Ass Pour La Rech Et Le | Method for the production of a hardening material, notably cement based, at higher production rates and with improved mechanical characteristics |
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