DE4203341A1 - Internally coated concrete storage and treatment vats - in which the surface of the concrete is roughened by spraying with water under pressure soon after commencement of hardening prior to coating - Google Patents

Internally coated concrete storage and treatment vats - in which the surface of the concrete is roughened by spraying with water under pressure soon after commencement of hardening prior to coating

Info

Publication number
DE4203341A1
DE4203341A1 DE4203341A DE4203341A DE4203341A1 DE 4203341 A1 DE4203341 A1 DE 4203341A1 DE 4203341 A DE4203341 A DE 4203341A DE 4203341 A DE4203341 A DE 4203341A DE 4203341 A1 DE4203341 A1 DE 4203341A1
Authority
DE
Germany
Prior art keywords
coating
concrete
water
spraying
roughened
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE4203341A
Other languages
German (de)
Inventor
Walter Dipl Ing Weiler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aqseptence Group GmbH
Original Assignee
Passavant Werke AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Passavant Werke AG and Co KG filed Critical Passavant Werke AG and Co KG
Priority to DE9218584U priority Critical patent/DE9218584U1/en
Priority to DE4203341A priority patent/DE4203341A1/en
Publication of DE4203341A1 publication Critical patent/DE4203341A1/en
Ceased legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
    • 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
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • 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
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0818—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for roughening, profiling, corrugating
    • 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
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48—Macromolecular compounds
    • C04B41/4853—Epoxides
    • 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
    • C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
    • 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
    • C04B41/62—Coating or impregnation with organic materials
    • C04B41/63—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B41/72—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone involving the removal of part of the materials of the treated articles, e.g. etching
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F11/00—Cesspools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Process involves applying coating to the inner surfaces after sufficient hardening of the concrete. But before applying the coating and shortly after the commencement of the hardening the surfaces to be coated are roughened by spraying with water under pressure. USE/ADVANTAGE - The water spray is easier to apply than the sand blasting used previously, and the water rinses off loose surface deposits from the concrete and roughens the surface so that it is fully conditioned to receive the coating. The spraying procedure can be automated and applied, e.g., after demoulding the vats during the prodn. process. The water spray can be combined with application of impregnating agents, e.g., water soluble epoxy resin. After spraying, the vats are allowed to dry and are then ready to receive coating to render them resistant to waters contg. harmful or aggressive media, esp. multilayer coatings of the type covered by DIN 4281.

Description

Die Erfindung betrifft ein neues Verfahren zur Herstellung von Lager- und Behandlungsbecken für Wässer oder Abwässer, die wasser- oder bodengefährdende und ggf. sogar aggressive Medien enthalten.The invention relates to a new method of manufacture storage and treatment tanks for water or waste water, the water or soil endangering and possibly even contain aggressive media.

Derartige Becken erhalten nach dem ausreichenden Abbinden des Zements eine vorzugsweise mehrlagige Innenbeschichtung, die u. a. nach DIN 4281 vorgeschrieben ist. Vor dem Aufbringen der Beschichtung muß die Innenfläche durch Sandstrahlen von lockeren Betonteilen befreit und die Fläche genügend aufgerauht werden. Im wesentlichen wird die an der Oberfläche eingebundene Zementschlempe entfernt, die keine ausreichende Bindung zum Zuschlag hat. Such pools get after the sufficient setting the cement is preferably a multilayer Interior coating that u. a. prescribed according to DIN 4281 is. Before applying the coating, the Inner surface by sandblasting loose concrete parts freed and the surface roughened sufficiently. in the what is essential is the one integrated on the surface Removed cement slurry that does not have sufficient binding has won.  

Das Sandstrahlen ist ein aufwendiger Vorgang, bei dem auch noch die Bestimmungen der Arbeitssicherheit beachtet werden müssen. Die Aufgabe, diesen aufwendigen Arbeitsgang durch eine andere Methode zu ersetzen, wird erfindungsgemäß dadurch gelöst, daß vor Aufbringen der Beschichtung und kurz nach Beginn des Aushärtens des Betons die zu beschichtende Fläche mit unter Druck aufgebrachten Wasserstrahlen abgespült und dadurch aufgerauht wird. Man wartet also nicht bis zum vollständigen Aushärten des Betons, um dann die lockere Schlempe mit Sandkörnern abzuschlagen, sondern die Schlempe und lockere Feinstteile werden vor dem Erhärten fortgespült. Das Abspülen kann schon kurz nach dem Ausformen des Beckens in der Fertigungshalle vorgenommen und weitgehend automatisiert werden. Der Wasserverbrauch ist, wenn die Wasserstrahlen richtig dosiert sind, sehr gering. Nach dem Abspülen wird das Becken zum vollständigen Aushärten auf das Freigelände oder in einen Trockenraum verbracht.Sandblasting is a complex process, which also includes the provisions of occupational safety are still observed Need to become. The task of this complex process will be replaced by another method solved according to the invention in that before the application Coating and shortly after the curing of the Concrete the surface to be coated with under pressure applied water jets and rinsed off is roughened. So you don't wait until complete hardening of the concrete, then the loose To knock off stillage with grains of sand, but the Slurry and loose fines are removed before hardening washed away. Rinsing can start shortly after Forming the basin in the production hall and be largely automated. The water consumption is very good, if the water jets are dosed correctly low. After rinsing, the basin becomes complete curing on the outdoor area or in one Drying room spent.

Die Wasserstrahlen werden unter einem in Abflußrichtung angestellten spitzen Winkel aufgebracht, so daß die losgespülte Schlempe schnell abfließen kann. Als vorteilhaft haben sich pulsierende und bezüglich des Durchmessers und der Stärke einstellbare Strahlen erwiesen. Die Düsenreihe erstreckt sich vorzugsweise über die ganze Höhe der Innenfläche. Das Düsenrohr braucht dann nur noch um die Mittelachse des Beckens gedreht zu werden. Es kann aber auch zweckmäßig sein, nur wenige Düsen an einem kurzen Rohr zu verwenden und diese dann schraubenförmig absteigend durch das Becken zu bewegen. Die weiter oben abgespülte Schlempe behindert dann das Abspülen weiter unten nicht mehr.The water jets are under one in the drain direction applied acute angle so that the washed-off stillage can drain off quickly. As pulsating and with respect to the Beams adjustable in diameter and strength proven. The row of nozzles preferably extends over the whole height of the inner surface. The nozzle tube then needs only to be rotated around the central axis of the pelvis. But it can also be useful to only have a few nozzles use a short tube and then this  to descend helically through the pelvis. The stillage washed off above then hinders this Do not rinse further down.

Imprägniermittel sind in der Betontechnologie zur Verbesserung der Oberflächeneigenschaften bekannt. Hier werden diese Imprägniermittel zur Verbesserung der Haftung der Beschichtung angewendet. Da die Imprägniermittel die Eigenschaft haben, in den Beton einzudringen und auch dort eine bessere Bindung der Zuschlagstoffe mit dem Zement zu bewirken, wird erfindungsgemäß vorgeschlagen, die Imprägniermittel während der Abbindephase - der sog. Hydratisierung - des Zements aufzubringen. Die Imprägniermittel gelangen dann zusammen mit dem eingesaugten Hydratisierungswasser tief in den Beton. Übliche Imprägniermittel sind deshalb wasserlösliche Epoxidharze.Impregnants are used in concrete technology Improvement in surface properties known. Here these impregnants are used to improve adhesion applied to the coating. Since the impregnating agent Have property to penetrate into the concrete and also there a better binding of the aggregates with the cement effect is proposed according to the invention, the Impregnation agent during the setting phase - the so-called Hydration - to apply the cement. The Impregnating agents then come together with the sucked hydration water deep into the concrete. Common impregnating agents are therefore water-soluble Epoxy resins.

Claims (7)

1. Verfahren zur Herstellung von Lager- und Behandlungsbecken aus Beton oder Stahlbeton, die gegen wasser- und bodengefährdende Medien enthaltende Wässer und Abwässer mit einer nach ausreichendem Aushärten des Betons auf der Innenfläche aufgebrachten Beschichtung versehen sind, dadurch gekennzeichnet, daß vor Aufbringen der Beschichtung und kurz nach Beginn des Aushärtens die zu beschichtende Fläche mit unter Druck aufgebrachten Wasserstrahlen abgespült und dadurch aufgerauht wird.1. A process for the production of storage and treatment tanks made of concrete or reinforced concrete, which are provided with water and wastewater containing water and soil-endangering media with a coating applied to the inner surface after sufficient hardening of the concrete, characterized in that before application of the coating and shortly after the start of curing, the surface to be coated is rinsed with water jets applied under pressure and thereby roughened. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Strahlen unter einem in Abflußrichtung angestellten spitzen Winkel aufgebracht werden.2. The method according to claim 1, characterized characterized that the rays under an acute angle set in the drain direction be applied. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Wasserstrahlen pulsieren. 3. The method according to claim 1 or 2, characterized characterized that the water jets pulsation.   4. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß eine über die ganze Höhe der abzuspritzenden Fläche erstreckte langsam rotierende Düsenreihe verwendet wird.4. The method according to claim 1 to 3, characterized characterized that one over the whole The height of the area to be sprayed extended slowly rotating nozzle row is used. 5. Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß der Strahldurchmesser oder/und die Strahlstärke einstellbar sind.5. The method according to claim 1 to 4, characterized characterized in that the Beam diameter or / and the beam strength are adjustable. 6. Verfahren nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß zum Schluß des Abspritzens ein als Haftgrund für die Beschichtung dienendes Imprägniermittel aufgebracht wird.6. The method according to claim 1 to 5, characterized characterized in that at the end of the Spraying a as a primer for the coating serving impregnating agent is applied. 7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß das Imprägniermittel ein wasserlösliches Epoxidharz ist.7. The method according to claim 6, characterized characterized in that the impregnating agent is a water-soluble epoxy resin.
DE4203341A 1992-02-06 1992-02-06 Internally coated concrete storage and treatment vats - in which the surface of the concrete is roughened by spraying with water under pressure soon after commencement of hardening prior to coating Ceased DE4203341A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE9218584U DE9218584U1 (en) 1992-02-06 1992-02-06 Storage and treatment basin made of concrete or reinforced concrete
DE4203341A DE4203341A1 (en) 1992-02-06 1992-02-06 Internally coated concrete storage and treatment vats - in which the surface of the concrete is roughened by spraying with water under pressure soon after commencement of hardening prior to coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4203341A DE4203341A1 (en) 1992-02-06 1992-02-06 Internally coated concrete storage and treatment vats - in which the surface of the concrete is roughened by spraying with water under pressure soon after commencement of hardening prior to coating

Publications (1)

Publication Number Publication Date
DE4203341A1 true DE4203341A1 (en) 1993-08-12

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025237A2 (en) * 1993-04-29 1994-11-10 Redland Technologies Limited Reinforced concrete tiles and methods of making the same
WO1997015727A1 (en) * 1995-10-25 1997-05-01 Ed. Züblin Ag Sound-absorbent and sound-damping structural element
DE102006050754A1 (en) * 2006-10-27 2008-04-30 Metten Stein + Design Gmbh & Co. Kg Method for shaping concrete blocks and / or concrete slabs

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DE-B.: E. PROBST, "Handbuch der Beton- steinindustrie", 1962, Carl Marbold Verlagsbuchhandlung, Berlin-Charlotten- burg, S.364 *
DE-B.: H. SAECHTLING, "Baustofflehre Kunststoffe für Bauingenieure und Archi- tekten, 1975, Carl Hanser Verlag, München Wien, S.53 u. 69 *
DE-Z.: "Beton", 1/91, S.22-26 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025237A2 (en) * 1993-04-29 1994-11-10 Redland Technologies Limited Reinforced concrete tiles and methods of making the same
WO1994025237A3 (en) * 1993-04-29 1995-01-05 Redland Technology Ltd Reinforced concrete tiles and methods of making the same
WO1997015727A1 (en) * 1995-10-25 1997-05-01 Ed. Züblin Ag Sound-absorbent and sound-damping structural element
DE102006050754A1 (en) * 2006-10-27 2008-04-30 Metten Stein + Design Gmbh & Co. Kg Method for shaping concrete blocks and / or concrete slabs

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