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DE102007031365A1 - Brick for building construction has hard foam-filled voids and water barrier layer - Google Patents

Brick for building construction has hard foam-filled voids and water barrier layer Download PDF

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Publication number
DE102007031365A1
DE102007031365A1 DE200710031365 DE102007031365A DE102007031365A1 DE 102007031365 A1 DE102007031365 A1 DE 102007031365A1 DE 200710031365 DE200710031365 DE 200710031365 DE 102007031365 A DE102007031365 A DE 102007031365A DE 102007031365 A1 DE102007031365 A1 DE 102007031365A1
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Germany
Prior art keywords
barrier layer
cavities
building block
foam concrete
water
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Granted
Application number
DE200710031365
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German (de)
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DE102007031365B4 (en
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Veit Dennert KG
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Veit Dennert KG
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Priority to DE200710031365 priority Critical patent/DE102007031365B4/en
Publication of DE102007031365A1 publication Critical patent/DE102007031365A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/042Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with insulating material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/042Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with insulating material
    • B28B11/043Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with insulating material filling cavities or chambers of hollow blocks
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00Building elements of block or other shape for the construction of parts of buildings
    • E04C1/40Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
    • E04C1/41Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts composed of insulating material and load-bearing concrete, stone or stone-like material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0256Special features of building elements
    • E04B2002/0289Building elements with holes filled with insulating material
    • E04B2002/0293Building elements with holes filled with insulating material solid material

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

A brick for building construction has a perforated (4) under a first load bearing solid face (2) material. The pores are filled with hard foam (5) and the brick further has a water-repellent second surface (7) material located between the foam-packed section and the layer (6) adjacent to the first face.

Description

Die Erfindung betrifft einen Baustein mit den im Oberbegriff des Anspruches 1 angegebenen Merkmalen sowie ein entsprechendes Verfahren zu dessen Herstellung.The The invention relates to a module with in the preamble of claim 1 specified characteristics and a corresponding method to its Production.

Zum Hintergrund der Erfindung ist festzuhalten, dass aus dem Stand der Technik seit langem bekannt ist, Bausteine mit einem ein Lochbild aus Hohlräumen aufweisenden, statisch tragenden Basiskörper beispielsweise aus einem Ton- oder Kalksandstein-Material auszubilden. Die durch die Hohlräume gebildete Luftkammern erhöhen die Wärmedämmfähigkeit des Bausteins. Seit geraumer Zeit ist nun die Fachwelt bestrebt, die Wärmedämmfähigkeit von Baumaterialien aus Energiespargründen zu optimieren. In diesem Zusammenhang sind bereits Lochsteine bekannt, deren Hohlräume mit hoch-wärmedämmfähigen Füllungen, wie beispielsweise Polystyrol-Formkörpern verschlossen sind.To the Background of the invention is to be noted that from the prior Technology has long been known, building blocks with a hole pattern from cavities comprising, for example, a static base body from a Clay or sand-lime brick material. The formed by the cavities Increase air chambers the thermal insulation ability of the building block. For some time now, the professional world is anxious the thermal insulation ability of building materials for energy saving reasons. In this Corrugated stones are already known whose cavities with highly-heat-resistant fillings, such as polystyrene moldings are closed.

Eine Alternative hierzu ist das direkte Einfüllen von Mineralschaumbeton in die Hohlräume, was auf Grund der geringeren Materialkosten und rationelleren Fertigungsweise eine erstrebenswerte Löschung darstellt.A Alternative to this is the direct filling of mineral foam concrete into the cavities, due to the lower material costs and more rational way of production a desirable deletion represents.

Im Zuge der erstrebten hohen Dämmwirkung und guten Befüllbarkeit der Hohlräume ist nun versucht worden, sehr dünnflüssige Schaumbetone mit einem hohen Porosierungsgrad zu verwenden. Dabei hat sich als Problem herausgestellt, dass die Basiskörper üblicher Bausteine etwa aus Ziegel oder Kalksandstein kapillarwirkend sind, was an sich aus wohnklimatischen Gründen erwünscht ist. In Hinsicht auf die Schaumbetonfüllung hat diese jedoch den Nachteil, dass das für die Stabilität des frisch eingebrachten Schaummaterials notwendige Wasser nach der Verfüllung in den saugenden Basiskörper abgezogen wird. Dies wiederum hat die Folge, dass das Schaumbetonmaterial destabilisiert wird und in sich zusammensackt. Zur Abhilfe wurde bereits versucht, den Basiskörper gründlich vorzunässen, was jedoch keinen Erfolg brachte. Im Gegenteil: Es ist davon auszugehen, dass der Kapillarfluss im vorgenässten Stein direkt an den Kapillarfluss des aussedimentierenden Wassers des Schaums anbindet.in the Course of the desired high insulation effect and good fillability the cavities has now been tried, very thin foam concrete to use with a high degree of porosity. It has as Problem highlighted that the base body of ordinary building blocks about Brick or sand-lime brick are kapillarwirkend, which in itself from living-climatic establish he wishes is. With regard to the foam concrete filling, however, this has the disadvantage that for the stability the freshly introduced foam material necessary water after the backfilling in the absorbent base body is deducted. This in turn has the consequence that the foam concrete material is destabilized and collapses. The remedy was already tried the base body thoroughly wetted, which did not bring success. On the contrary: it can be assumed that the capillary flow in the stone before directly to the capillary flow of the sedimenting water of the Foam ties.

Ausgehend von der geschilderten Problematik liegt der Erfindung die Aufgabe zu Grunde, einen Baustein und ein Verfahren zu dessen Herstellung anzugeben, bei dem ein Verfüllen des Lochbildes mit einer stark porosierten Schaumbetonfüllung zur Bildung eines hochwärmedämmenden Bausteines ermöglicht wird.outgoing From the described problem of the invention is the task to provide a building block and a method of making it, when filling a the hole pattern with a highly porous foam concrete filling for Formation of a high thermal insulation Blocks enabled becomes.

Diese Aufgabe wird durch die im Kennzeichnungsteil des Anspruches 1 bzw. 5 angegebenen Merkmale gelöst. Kern der Erfindung ist eine wasserabweisende Sperrschicht zwischen der Schaumbetonfüllung und der die Hohlräume begrenzenden Wandung des Basiskörpers. Mit Hilfe dieser Sperrschicht wird der für den Schaumbeton destabilisierende Kapillarwasserabfluss unterbunden. Die Schaumbetonfüllung kann damit ohne Destabilisierung aushärten und behält damit ihre spezifikationsgemäße hohe Porosität.These The object is achieved by the in the characterizing part of claim 1 or 5 specified characteristics solved. Core of the invention is a water-repellent barrier layer between the foamed concrete filling and the cavities limiting wall of the base body. With the help of this barrier layer is destabilizing for the foam concrete Kapillarwasserabfluss prevented. The foam concrete filling can so that they harden without destabilization and keeps so that their specification high Porosity.

Die Sperrschicht selbst kann als hydrophobe Beschichtung vorzugsweise einer Silikonöl-Suspension oder einem pflanzlichen Öl, als wasserabweisende Dispersionsbeschichtung oder durch eine Folienbeschichtung gebildet sein.The The barrier layer itself may preferably be used as the hydrophobic coating a silicone oil suspension or a vegetable oil, as a water-repellent dispersion coating or by a film coating be formed.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels an Hand der beigefügten Zeichnung. DieFurther Features, details and advantages of the invention will become apparent the following description of an embodiment of the hand attached Drawing. The

1 zeigt einen ausschnittsweisen Vertikalschnitt durch einen Baustein. 1 shows a partial vertical section through a block.

Wie aus der Zeichnung deutlich wird, weist der Baustein 1 einen Basiskörper 2 aus einem statisch tragenden Material, wie beispielsweise gebranntem Ton oder in einem Autoklaven ausgehärtetem Kalksandstein auf. Zwischen den Vertikalstegen 3 des Basiskörpers 2 sind vertikal durchgehende Hohlräume 4 ausgebildet, die mit einer stark porosierten Schaumbetonfüllung 5 verfüllt sind. Um vor dem Abbinden der Schaumbetonfüllung 5 ein Austreten des Wassers aus dem Schaumbeton in die Stege 3 des Basiskörpers 2 zu unterbinden, sind die die Hohlräume 4 begrenzenden Wandungen 6 des Basiskörpers mit einer Sperrschicht 7 in Form einer hydrophoben Beschichtung beispielsweise aus einer Silikonöl-Suspension oder einem pflanzlichen Öl versehen. Diese Sperrschicht 7 kann auch – je nach Kapillarwirkung – des Basiskörpers und Viskosität des Beschichtungsmaterials als Tränkung der Wandung 6 ausgebildet sein.As can be seen from the drawing, the building block points 1 a base body 2 of a static bearing material such as calcined clay or calcareous sandstone hardened in an autoclave. Between the vertical webs 3 of the base body 2 are vertically continuous cavities 4 formed, which with a highly porous foam concrete filling 5 are filled. To before the setting of foam concrete filling 5 a leakage of water from the foam concrete in the webs 3 of the base body 2 to prevent, are the cavities 4 bounding walls 6 of the base body with a barrier layer 7 provided in the form of a hydrophobic coating, for example from a silicone oil suspension or a vegetable oil. This barrier layer 7 can also - depending on capillary action - the base body and viscosity of the coating material as impregnation of the wall 6 be educated.

Die Herstellung des in 1 gezeigten Bausteins lässt sich wie folgt erläutern:
Der Basiskörper 2 wird in der Regel aus hydraulisch abbindenden Materialien als Bindemittel zusammengemischt mit Leichtzuschlagstoffen hergestellt. Zu diesem Zweck wird ein Mischungsgemenge aus vorgenannten Komponenten in einem Hohlblock-Fertigungsautomaten bekannter Machart zu einem Steinrohling verpresst, der die in 1 dargestellten Quer schnittsformen aufweist. Nach einer Ansteifzeit ist der Steinkorpus so verfestigt, dass der Auftrag der hydrophoben Sperrschicht 7 stattfinden kann. Nachdem diese aufgetragen wurde, werden die Hohlräume mit Schaumbeton aufgefüllt. Der Steinkorpus besteht hierbei aus einem Materialmix mit einer Rohdichte von ca. 600 bis 1.800 kg/m3. Die Schaumbetonfüllung 5 erreicht nach dem Aushärten eine Rohdichte von ca. 80 bis 100 kg/m3.
The production of in 1 can be explained as follows:
The base body 2 is usually made of hydraulically setting materials mixed together as a binder with lightweight aggregates. For this purpose, a mixture mixture of the aforementioned components is pressed in a hollow block manufacturing machine of known design to a stone blank, the in 1 having cross-sectional shapes shown. After a Stiff the stone body is solidified so that the order of the hydrophobic barrier layer 7 can take place. After this has been applied, the cavities are filled with foam concrete. The stone body here consists of a material mix with a density of about 600 to 1,800 kg / m 3 . The foam concrete filling 5 reaches a raw after curing density of about 80 to 100 kg / m 3 .

Claims (8)

Baustein mit – einem ein Lochbild aus Hohlräumen (4) aufweisenden, statisch tragenden Basiskörper (2) und – einer stark porosierten Schaumbetonfüllung (5) in den Hohlräumen (4), gekennzeichnet durch – eine wasserabweisende Sperrschicht (7) zwischen der Schaumbetonfüllung (5) und der die Hohlräume (4) begrenzenden Wandung (6) des Basiskörpers (2).Building block with - a hole pattern of cavities ( 4 ), statically supporting base bodies ( 2 ) and - a highly porous foam concrete filling ( 5 ) in the cavities ( 4 ), characterized by - a water-repellent barrier layer ( 7 ) between the foam concrete filling ( 5 ) and the cavities ( 4 ) bounding wall ( 6 ) of the base body ( 2 ). Baustein nach Anspruch 1, dadurch gekennzeichnet, dass die Sperrschicht (7) durch eine hydrophobe Beschichtung vorzugsweise aus einer Silikonöl-Suspension oder einem pflanzlichen Ol gebildet ist.Building block according to Claim 1, characterized in that the barrier layer ( 7 ) is formed by a hydrophobic coating, preferably from a silicone oil suspension or a vegetable oil. Baustein nach Anspruch 1, dadurch gekennzeichnet, dass die Sperrschicht (7) durch eine wasserabweisende Dispersionsbeschichtung gebildet ist.Building block according to Claim 1, characterized in that the barrier layer ( 7 ) is formed by a water-repellent dispersion coating. Baustein nach Anspruch 1, dadurch gekennzeichnet, dass die Sperrschicht (7) durch eine Folienbeschichtung gebildet ist.Building block according to Claim 1, characterized in that the barrier layer ( 7 ) is formed by a film coating. Verfahren zur Herstellung eines Bausteines nach einem der vorgenannten Ansprüche, gekennzeichnet durch folgende Verfahrensschritte: – Bereitstellen eines ein Lochbild aus Hohlräumen (4) aufweisenden, statisch tragenden Basiskörper (2) für den Baustein (1), – Aufbringen einer wasserabweisenden Sperrschicht (7) auf die die Hohlräume (4) begrenzenden Wandung (6) des Basiskörpers (2), – Einfüllen eines stark porosierten Schaumbetonmaterials (5) in die Hohlräume (4), und – Abbindenlassen des Schaumbetonmaterials (5).Process for producing a building block according to one of the preceding claims, characterized by the following process steps: - providing a hole pattern from cavities ( 4 ), statically supporting base bodies ( 2 ) for the building block ( 1 ), - applying a water-repellent barrier layer ( 7 ) on which the cavities ( 4 ) bounding wall ( 6 ) of the base body ( 2 ), - filling a strongly porous foam concrete material ( 5 ) in the cavities ( 4 ), and - allowing the foam concrete material to set ( 5 ). Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass die Wandung (6) mit einer hydrophoben Beschichtung vorzugsweise aus einer Silikonöl-Suspension oder einem pflanzlichen Öl als Sperrschicht (7) versehen wird.Method according to claim 5, characterized in that the wall ( 6 ) having a hydrophobic coating, preferably of a silicone oil suspension or of a vegetable oil as a barrier layer ( 7 ). Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass die Wandung (6) mit einer wasserabweisenden Dispersionsbeschichtung als Sperrschicht (7) versehen wird.Method according to claim 5, characterized in that the wall ( 6 ) with a water-repellent dispersion coating as a barrier layer ( 7 ). Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass auf die Wandung (6) eine Folienbeschichtung als Sperrschicht (7) aufgebracht wird.Method according to claim 5, characterized in that on the wall ( 6 ) a film coating as a barrier layer ( 7 ) is applied.
DE200710031365 2007-07-05 2007-07-05 Building block and method for its production Expired - Fee Related DE102007031365B4 (en)

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Application Number Priority Date Filing Date Title
DE200710031365 DE102007031365B4 (en) 2007-07-05 2007-07-05 Building block and method for its production

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3156383A1 (en) 2015-10-16 2017-04-19 IAB Institut für Angewandte Bauforschung Weimar gGmbH Method for producing an anorganic foam

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929609A1 (en) * 1979-07-21 1981-02-12 Francesco Costre Machine for filling hollow insulating blocks - has mask and frame positioned over blocks to direct filler material from overhead hopper
DE102004049618A1 (en) * 2004-10-12 2006-04-20 Knauf Perlite Gmbh Hollow component and a mixture for packaging the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929609A1 (en) * 1979-07-21 1981-02-12 Francesco Costre Machine for filling hollow insulating blocks - has mask and frame positioned over blocks to direct filler material from overhead hopper
DE102004049618A1 (en) * 2004-10-12 2006-04-20 Knauf Perlite Gmbh Hollow component and a mixture for packaging the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Firmenschrift "calinoor". Dennert-Baustoffe mit Sy stem
Firmenschrift "calinoor". Dennert-Baustoffe mit System; *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3156383A1 (en) 2015-10-16 2017-04-19 IAB Institut für Angewandte Bauforschung Weimar gGmbH Method for producing an anorganic foam

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