EP0733028A1 - Method for supplying premixed lightweight concrete mass - Google Patents

Method for supplying premixed lightweight concrete mass

Info

Publication number
EP0733028A1
EP0733028A1 EP94930113A EP94930113A EP0733028A1 EP 0733028 A1 EP0733028 A1 EP 0733028A1 EP 94930113 A EP94930113 A EP 94930113A EP 94930113 A EP94930113 A EP 94930113A EP 0733028 A1 EP0733028 A1 EP 0733028A1
Authority
EP
European Patent Office
Prior art keywords
mixed
cement
mass
premixed
water
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
EP94930113A
Other languages
German (de)
French (fr)
Inventor
Wolfgang Stracke
Peter Goess
Georg Khevenhüller
Marica Stracke
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0733028A1 publication Critical patent/EP0733028A1/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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • C04B16/08—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
    • 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
    • C04B40/06—Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C04B40/0625—Wet ready-made mixtures, e.g. mortars in water- or airtight packages, or mortars containing an accelerator in a breakable emulsion

Definitions

  • the invention relates to a method for delivering a premixed lightweight concrete mass to an installation location according to the preamble of claim 1.
  • the aim of the invention is to avoid this disadvantage and to propose a method of the type mentioned at the outset in which the concrete mixture can be transported in a simple manner, with the transport being able to be carried out without great mechanical outlay.
  • the proposed measures ensure that the finished concrete mix is ready for installation. e.g. mixed earth-moist, divided into relatively small volumes, whereby segregation is largely prevented even if the mixture is exposed to vibrations during transport.
  • the sacks provided according to the invention can be filled and loaded very easily and unloaded again at the installation site, and the filled sacks can also be transported on open platform trucks.
  • the premixed masses retarders can be added.
  • the premixed concrete mass can be kept in a ready-to-install state for a long time, so that a correspondingly long time is available for the transport of the masses.
  • the pre-mixed mass can be kept processable for a period of four to six hours.
  • Such concrete mixtures can also be transported over long distances by the process according to the invention without the mixed mass ready for installation being separated. A loss of moisture in the mixture is also prevented by using bags made of plastic.
  • the bags can be easily loaded or unloaded by hand, so that there is no need for complex mechanical hoists.
  • the bags can have a filling volume of 100 to 150 liters. The proposed measures make it possible to keep the use of machines and energy low and also to reduce the use of specialist personnel to a minimum.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

Disclosed is a method for supplying a premixed lightweight concrete mass to a building site, with the dry matter, which includes expanded and possibly heat-treated Styropor particles and cement, being mixed and watered. To provide a simple transport of a ready-mixed concrete mass without having to use expensive transport mixers, the invention calls for the premixed masses to be filled in leakproof sacks, preferably sacks made of plastic, and transported to the building site, where they are emptied.

Description

Verfahren zum Verbringen einer vorgemischten Leichtbetonmasse Process for applying a premixed lightweight concrete mass
Die Erfindung bezieht sich auf ein Verfahren zum Verbringen einer vorgemischten Leicht¬ betonmasse zu einem Einbauort gemäß dem Oberbegriff des Anspruches 1.The invention relates to a method for delivering a premixed lightweight concrete mass to an installation location according to the preamble of claim 1.
Bekannt sind Lieferbeton-Einbauverfahren, wobei entweder Betonpumpen oder Estrichför¬ deranlagen eingesetzt werden. Außerdem sind für den Transport von Betonen vielfach Fahr¬ mischer erforderlich, weil sich der Beton durch die Erschütterungen beim Transport ent¬ mischt.Delivery concrete installation methods are known, either concrete pumps or screed conveying systems being used. In addition, truck mixers are often required for the transport of concrete because the concrete separates due to the vibrations during transport.
Dabei ergibt sich jedoch der Nachteil daß für den Transport des Betons ein sehr erheblicher Aufwand erforderlich ist, um die Betonmischung in einwandfreiem Zustand auf den Ein¬ bauort zu bringen.However, there is the disadvantage that a very considerable effort is required to transport the concrete in order to bring the concrete mixture to the installation site in perfect condition.
Ziel der Erfindung ist es, diesen Nachteil zu vermeiden und ein Verfahren der eingangs er¬ wähnten Art vorzuschlagen, bei dem der Transport der Betonmischung auf einfache Weise erfolgen kann, wobei der Transport ohne großen maschinellen Aufwand durchführbar sein soll.The aim of the invention is to avoid this disadvantage and to propose a method of the type mentioned at the outset in which the concrete mixture can be transported in a simple manner, with the transport being able to be carried out without great mechanical outlay.
Erfindungsgemäß wird dies bei einem Verfahren der eingangs erwähnten Art durch die kenn¬ zeichnenden Merkmale des Anspruches 1 erreicht.According to the invention, this is achieved in a method of the type mentioned at the outset by the characterizing features of claim 1.
Durch die vorgeschlagenen Maßnahmen ist sichergestellt, daß die fertige Betonmischung in einbaufähiger Qualität. z.B. erdfeucht abgemischt, in relativ kleine Volumina unterteilt wird, wodurch eine Entmischung auch dann weitgehend verhindert wird, wenn die Mischung beim Transport Erschütterungen ausgesetzt wird.The proposed measures ensure that the finished concrete mix is ready for installation. e.g. mixed earth-moist, divided into relatively small volumes, whereby segregation is largely prevented even if the mixture is exposed to vibrations during transport.
Die erfindungsgemäß vorgesehenen Säcke können sehr einfach gefüllt und verladen, sowie am Einbauort wieder entladen werden, wobei der Transport der gefüllten Säcke auch auf offenen Pritschenwägen erfolgen kann.The sacks provided according to the invention can be filled and loaded very easily and unloaded again at the installation site, and the filled sacks can also be transported on open platform trucks.
Dabei ergibt sich auch der Vorteil, daß immer nur geringe Mengen nach dem Öffnen eines Sackes verarbeit werden müssen, sodaß auch wenig geübte Hobbymaurer damit arbeiten können und lediglich bei höheren Ansprüchen an die Oberflächengenauigkeit Fachleute erforderlich sind, wobei jedoch die Entladung. Verbringung und Entleerung der Säcke von ungeschulten Hilfskräften durchgeführt werden kann.This also has the advantage that only small amounts always have to be processed after opening a sack, so that even inexperienced hobby masons can work with it and specialists are only required for higher demands on the surface accuracy, but the discharge. Transfer and emptying of the bags can be carried out by untrained assistants.
Um einen Transport über weitere Strecken zu ermöglichen, können den vorgemischten Massen Abbindeverzögerer beigemischt werden. Dadurch kann die vorgemischte Betonmasse längere Zeit in einem einbaufähigen Zustand gehalten werden, sodaß für den Transport der Massen eine entsprechend lange Zeit zur Verfügung steht. So kann durch die Zugabe von Abbindeverzögerer die fertig vorgemischte Masse für eine Zeitspanne von vier bis sechs Stunden verarbeitbar gehalten werden. Durch die Merkmale des Anspruches 4 ist es möglich, Leichtbetone herzustellen, die sich durch eine entsprechend geringe Rohdichte und ein hohes Maß an Wärmedämmung aus¬ zeichnet.In order to enable transport over longer distances, the premixed masses retarders can be added. As a result, the premixed concrete mass can be kept in a ready-to-install state for a long time, so that a correspondingly long time is available for the transport of the masses. By adding a retarder, the pre-mixed mass can be kept processable for a period of four to six hours. The features of claim 4 make it possible to produce lightweight concrete which is distinguished by a correspondingly low bulk density and a high degree of thermal insulation.
Auch solche Betonmischungen können durch das erfindungsgemäße Verfahren über weite Strecken transportiert werden, ohne daß es dabei zu einer Entmischung der einbaufertig ab¬ gemischten Masse kommt. Dabei wird durch die Verwendung von aus Kunststoff hergestellten Säcken auch ein Verlust an Feuchtigkeit der Mischung verhindert werden.Such concrete mixtures can also be transported over long distances by the process according to the invention without the mixed mass ready for installation being separated. A loss of moisture in the mixture is also prevented by using bags made of plastic.
Durch die Merkmale des Anspruches 5 ergibt sich der Vorteil, daß eine solche Mischung für viele Zwecke verwendbar ist und kann durch das erfindungsgemäße Verfahren längere Zeit transportiert werden, ohne daß es dabei zu einer Entmischung kommt.The features of claim 5 result in the advantage that such a mixture can be used for many purposes and can be transported for a long time by the process according to the invention without segregation occurring.
Durch die Merkmale des Anspruches 6 ergibt sich der Vorteil, daß eine solche Betonmischung praktisch keine Neigung zur Entmischung aufweist, auch wenn ein längerer Transport zwischen dem Ort der Zubereitung der Betonmischung und deren Einbauort erfor¬ derlich ist. Dadurch können Transporte auch über 100km auf offenen Pritschenwagen durch¬ geführt werden, ohne daß die Qualität der Mischung leidet.The features of claim 6 result in the advantage that such a concrete mixture has practically no tendency to separate, even if a longer transport between the place of preparation of the concrete mixture and its installation location is necessary. This means that transports can also be carried out over 100 km on open platform trucks without the quality of the mixture suffering.
Die praktisch nicht vorhandene Neigung zur Entmischung solcher Massen dürfte mit der guten Benetzbarkeit der angeschmorten Oberflächen Polystyrol- bzw. Styroporpartikel be¬ dingt sein.The practically non-existent tendency to segregate such masses is probably due to the good wettability of the scorched surfaces of polystyrene or polystyrene particles.
Durch die Merkmale des Anspruches 7 können die Säcke ohne weiteres handverladen bzw. entladen werden, sodaß sich aufwendige maschinelle Hebezeuge erübrigen. Dabei können die Säcke, je nach der Rohdichte der Masse ein Füllvolumen von 100 bis 150 Liter aufweisen. Durch die vorgeschlagenen Maßnahmen ist es möglich den Einsatz von Maschinen und Ener¬ gie gering zu halten und auch den Einsatz von Fachpersonal auf ein Minimum zu reduzieren. Due to the features of claim 7, the bags can be easily loaded or unloaded by hand, so that there is no need for complex mechanical hoists. Depending on the bulk density of the mass, the bags can have a filling volume of 100 to 150 liters. The proposed measures make it possible to keep the use of machines and energy low and also to reduce the use of specialist personnel to a minimum.

Claims

Patentansprüche: Claims:
1. Verfahren zum Verbringen einer vorgemischten Leichtbetonmasse zu einem Einbauort, wobei die Trockenmassen, die auch expandierte und gegebenenfalls wärmebehandelte Styroporpartikel und Zement umfassen, gemischt und mit Wasser versetzt werden, da¬ durch gekennzeichnet, daß die vorgemischte Masse in dichte Säcke, vorzugsweise aus Kunststoff hergestellte Säcke, gefüllt und zum Einbauort transportiert und dort entleert werden.1. Process for bringing a premixed lightweight concrete mass to a place of installation, the dry masses, which also include expanded and optionally heat-treated polystyrene particles and cement, being mixed and mixed with water, characterized in that the premixed mass is in tight bags, preferably made of plastic manufactured bags, filled and transported to the installation site and emptied there.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß den vorgemischten Massen Abbindeverzögerer beigemischt werden.2. The method according to claim 1, characterized in that the premixed mass setting retarder are added.
Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Leichtbetonmasse gebrauchsfertig, z.B. erdfeucht abgemischt wird.Method according to claim 1 or 2, characterized in that the lightweight concrete mass is ready for use, e.g. is mixed earth-moist.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Trockenmassen zementgebundene Polystyrolpartikel aufweisen.4. The method according to any one of claims 1 to 3, characterized in that the dry masses have cement-bound polystyrene particles.
5. Verfahren nach einem der Ansprüche 1 bis 4 dadurch gekennzeichnet, daß die fertige mit Wasser versetzte Mischung einen Zementanteil von 100 bis 500kg/m3 aufweist und der Wasserzementfaktor der Mischung 0,4 bis 0,5 beträgt.5. The method according to any one of claims 1 to 4, characterized in that the finished water-mixed mixture has a cement content of 100 to 500kg / m3 and the water cement factor of the mixture is 0.4 to 0.5.
6 Verfahren nach einem der Ansprüche 1 bis 5 dadurch gekennzeichnet, daß die als Zu¬ schlagsstoffe verwendeten Polystyrol- bzw. Styroporpartikel vor dem Vermischen mit Zement und Wasser einer Hitzebehandlung unterzogen werden, um deren Oberflächen anzuschmelzen.6. The method according to any one of claims 1 to 5, characterized in that the polystyrene or polystyrene particles used as additives are subjected to a heat treatment before mixing with cement and water in order to melt their surfaces.
7 Verfahren nach einem der Ansprüche 1 bis 6 dadurch gekennzeichnet, daß die fertige mit Wasser versetzte Masse in Säcke mit einem Füllgewicht von 20 bis 60kg abgefüllt wird. 7 The method according to any one of claims 1 to 6, characterized in that the finished mass mixed with water is filled into sacks with a filling weight of 20 to 60kg.
EP94930113A 1993-11-02 1994-10-31 Method for supplying premixed lightweight concrete mass Ceased EP0733028A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2203/93 1993-11-02
AT220393 1993-11-02
PCT/AT1994/000162 WO1995012558A1 (en) 1993-11-02 1994-10-31 Method for supplying premixed lightweight concrete mass

Publications (1)

Publication Number Publication Date
EP0733028A1 true EP0733028A1 (en) 1996-09-25

Family

ID=3529918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94930113A Ceased EP0733028A1 (en) 1993-11-02 1994-10-31 Method for supplying premixed lightweight concrete mass

Country Status (3)

Country Link
EP (1) EP0733028A1 (en)
AU (1) AU7933494A (en)
WO (1) WO1995012558A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1759397A (en) * 1996-02-29 1997-09-16 Regina Wetter Light construction material
WO1997043226A1 (en) * 1996-05-15 1997-11-20 Markus Stracke Facade panel or structural element for facades
AT410957B (en) * 1999-10-27 2003-09-25 Krassnitzer Walter BUILDING AND INSULATION MATERIAL

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2125785A5 (en) * 1971-02-15 1972-09-29 Tardieu Andre
DE2624950B2 (en) * 1976-06-03 1980-04-30 Hans Joachim 7520 Bruchsal Roth Lightweight concrete
FR2516435A1 (en) * 1981-11-17 1983-05-20 Obernai Sarl Beton Ready to use mortar mixt. with retarded setting time - contains sand, fly ash, cement, water, retardant, plasticiser, and foamer so mortar contains specific amt. of air
US4470703A (en) * 1982-09-28 1984-09-11 Nickerson Jr Bryan W Process for mixing and retarding cure of cement
US4751024A (en) * 1986-04-07 1988-06-14 W. R. Grace & Co. Sprayable fireproofing composition

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9512558A1 *

Also Published As

Publication number Publication date
AU7933494A (en) 1995-05-23
WO1995012558A1 (en) 1995-05-11

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