WO1999021779A1

WO1999021779A1 - Process and device for packaging building materials

Info

Publication number: WO1999021779A1
Application number: PCT/DE1998/003210
Authority: WO
Inventors: Lutz Stache
Original assignee: Ahg Baustoffhandels Gmbh & Co. Kg
Priority date: 1997-10-28
Filing date: 1998-10-28
Publication date: 1999-05-06
Also published as: AU1748999A; DE19881604D2; DE19749693A1; EP0961740A1

Abstract

A process is disclosed for packaging the components of a mixture of building materials comprising at least one moisture-sensitive or water-setting component and at least one non-moisture-sensitive and non-water-setting component as aggregate. The aggregate is filled into a separate chamber of a multiple chamber package in an at least residually moist state, without being previously dried. The moisture content of the moist or residually moist aggregate is determined before it is packaged without being previously dried and either the water content of the aggregate is increased up to an appropriate value for the intended use by additional admixture of water before and/or after the aggregate is filled into the chamber, or the additional amount of water to be added is filled into a separate chamber of the multiple chamber package. The moisture-sensitive or water-setting component is filled into at least one chamber protected from moisture penetration and whose envelope also offers a protection against moisture penetration from the non-moisture-sensitive and non-water-setting, moist or residually moist aggregate.

Description

Method and device for packaging building materials

The invention relates to a method for packaging building materials consisting of several powdery or granular components according to the preamble of claim 1 and to a container produced by this method.

In order to avoid that the additives have to be dried in a complex manner in a building material mixture offered in separately packaged components, it is over U.S. Patent 2,988,207 for cement mixes known to leave these aggregates undried.

Such a drying process requires considerable costs due to the use of plant technology and energy. The drying systems alone account for up to 80% of the total investment costs for a packaging or packaging line.

A corresponding light mortar pack is known from German Offenlegungsschrift 28 21 804.

The disadvantage here is that water must be added to the mixture before processing.

Based on the deficiencies of the prior art, the invention is based on the object of specifying a method of the type mentioned at the outset and a container used in accordance with the method, which can be used to simply package a building material consisting of several components and processable without adding water. Mixing is both inexpensive to carry out and in a packaging form which facilitates the use of the building material mixture for the consumer.

This object is achieved by the features specified in the characterizing part of claims 1 and 4, respectively.

The invention includes the knowledge that in the manufacture of prefabricated, multi-component building material mixtures which have to be brought into a processing and / or application-appropriate state with the addition of water, considerable economic advantages can be achieved if the building material mixture is not present the egg generic application from complex pre-dried, and thus essentially moisture-free components is produced. This results in particular from the fact that the drying of the individual components for a specific building material mixture in particularly energy-intensive facilities has to be carried out on a large-scale plant for packaging building materials, in which essentially up to 30% of the production costs for packaging have to be allocated. The previously apparently overlooked economic contradiction of such a drying process according to the prior art becomes all the clearer if one realizes that the moisture removed from the components of the building material mixture with great technical effort - essentially only taking into account the technical packaging conditions - before actual use of this building material mixture, which has been prepared by intensive drying, must be added again at least in the same amount in the form of mixing water.

Therefore, according to the invention, the residual moisture content of the undried additives is determined and the difference in the amount of water which is missing for processing is determined and added, so that a ready-to-use mixture can be processed without the addition of water.

The individual components of the building material mixture are packaged without prior preparation, while maintaining their moisture content due to production, storage or transport. The moisture content of the moist component is measured before packaging and then increased by adding water to the value required for processing the finished building material mixture in accordance with the application. The water can be added or after packaging, the determination of the quantity of water to be added from the test quantity being extrapolated for the volume to which the difference is added. This metering can also be carried out in such a way that the amount of water to be added is added to a separate tube or film packaging.

It is particularly advantageous that the metering of

Water according to the previously determined residual moisture

Differential amount is much easier to carry out than adding water after drying completely.

Since the building material mixture is ready for processing, no dosing is required on the building site, so that the building material mixture is always used in the best quality.

For this purpose, the packaging of the respective components of the building material mixture is preferably carried out in a package in the form of a single container. Each of the components of the building material mixture is filled into a separate packaging chamber of the container, the components being filled essentially simultaneously and in each case packaging chambers extending parallel to one another and to the filling direction.

The container, which has individual packing chambers for filling the components of the building material mixture, is made of an elastic, moisture-proof material. As a result, there is neither the possibility that there is a moisture exchange between the individual components of the building material mixture, nor the possibility that the moisture in the ambient air enters the individual building Packing chambers containing substance components can penetrate the container.

The container is preferably made of a flat plastic film. The chambering of the container is produced by a film welding known per se, the individual packing chambers being delimited by the weld seams.

According to a preferred embodiment of the invention, the components of the building material mixture are simultaneously filled into packaging chambers of the same length, which are arranged side by side with parallel long sides.

According to another variant of the invention, procedural simplifications result in an advantageous manner if the components provided for the building material mixture are alternately filled into packing chambers arranged one behind the other in the filling direction and a weld seam separating the packing chambers parallel to the filling direction can be omitted.

In accordance with the various other variants for the manufacture of the container, the packaging chambers have a tubular or pillow shape.

As packaging for such a conditioned component of the building material mixture, according to the invention, a preferably egg-shaped container is provided, in which the component enriched with water is filled without its own packaging. The other components required for the building material mixture are - each packed in a separate film or plastic packaging - placed on top of the water-enriched component of the building material mixture. The separate film packagings each have a quick-release fastener designed as a predetermined breaking point, after actuation of which the film packagings can be opened conveniently and the packaging contents of which can be emptied into the container with the moist component. The building material mixture can advantageously be produced directly in the container by intensive mixing.

In such separate film packaging, in addition to a dry binder, fillers necessary for a specific building material mixture, for example polystyrene balls or expanded clay, dyes or materials of building material chemistry can also be arranged in the bucket-shaped container.

According to a further advantageous variant of the invention, the moist component of the building material mixture enriched with water is filled into the bucket-shaped container and an intermediate layer made of an elastic film is arranged on its exposed surface. The dry component intended for the building material mixture is simply poured onto this intermediate layer and struck with its free ends, so that adequate moisture protection is ensured. The bucket-shaped container has a tightly closing lid, so that no atmospheric moisture can penetrate into the container and the components are available over a longer period of time for producing a building material mixture.

With this inexpensive packaging, the individual components can be mixed in a simple manner in the container after the film-shaped intermediate layer has been removed. According to a further embodiment of the invention, the bucket-shaped container has an inner bucket. The inner bucket forms a first packaging chamber for the dry building material component and carries at its opening a circumferential collar which extends essentially radially outwards. This collar is supported on the circular bucket rim when the inner bucket is inserted in the container. The free space remaining in the bucket-shaped container when the inner bucket is inserted forms a second packaging chamber for the moist component. A screw-on lid is provided to close the entire container.

According to an advantageous variant of the invention, the bucket-shaped container has in the opening area on the outer wall a ring collar which carries a thread and to which a cup-like cover which engages over the opening area of the bucket-shaped container is screwed.

The collar, together with the edge of the bucket and the inside of the lid, forms an annular sealing surface, through which a moisture-proof separation of the packaging chambers can be ensured in a favorable manner.

A particularly good sealing effect can be achieved using an inner bucket made of a soft plastic material.

In order to improve the usability of the ready-mix according to the invention, it is furthermore provided that additional components are added in an amount which is matched to that of the main components for the respective application. Here it can be - in a separate, moisture-protected against the damp component Packaging - is another binder, dye, filler and / or construction chemical material. Styrofoam balls and / or expanded clay are particularly suitable as fillers. Such a container is particularly suitable as a ready-mixed plaster mixture, with insulating and coloring agents being able to be added retrospectively to the basic materials which have already been predetermined in terms of their quantity. In this way, a large need for different component mixtures can be quickly satisfied with small stocks: The basic mixtures are produced in large quantities each as a container with non-dehumidified aggregate component, whereby the dry and moisture-protected components that contribute to setting are also weighed in a suitable amount and are prepackaged. The fine-tuning to the intended application is then carried out by including specific components which - for example for ready-mixed plaster mixes - contain different coloring or thermal insulation components, each of which is placed on a single container in the moisture-proof packaging quantity. This enables the customer to easily compile the quantities of components required for the intended application by simply counting the prepared containers. Mix and ratio calculations are completely eliminated. Mixing can then also be carried out in smaller subsets in accordance with the progress of the work, without inadvertently different mixing approaches leading to color or other deviations.

The containers are preferably put together for quantities of 25, 30, 40 or 50 kg, so that the combination of these different quantities can be precisely achieved.

Other advantageous developments of the invention are characterized in the subclaims or are shown below together with the description of the preferred embodiment of the invention with reference to the figures. Show it:

FIG. 1 shows a preferred embodiment for a device for carrying out the packaging method according to the invention in a schematic block diagram representation,

FIG. 2 shows the perspective illustration of the view of a cross section through a container produced with the device according to FIG. 1,

FIG. 3 shows an advantageous development of the device shown in FIG. 1,

FIG. 4 shows a container produced with the device according to FIG. 3 in a perspective view,

FIG. 5 shows another advantageous embodiment of the invention in a sectional view,

FIG. 6 shows a favorable variant of the embodiment of the invention shown in FIG. 5,

Figure 7 shows a further advantageous embodiment of the invention in a sectional view and

FIGS. 8 and 9 show advantageous variants of the detail E according to FIG. 7. A device 100 provided for carrying out the method according to the invention is shown in FIG. 1 as a block diagram. A corresponding device 100 for packaging building materials has two storage containers 2 and 3 for the individual components 2.1 and 3.1 of the building material mixture.

In the process for packaging powdery and / or granular, pourable components (2.1, 3.1, 2.1 ', 3.1', 3.2), a building material mixture consisting of at least one moisture-sensitive or water-binding component and at least one non-moisture-sensitive and not with water-setting component as additive, the additive 2.1, 2.1 'is filled into a separate chamber 17.2 or 47.2 of a multi-chamber packaging 17, 47, 57 without prior drying in at least a residual moist state. The moisture content of the aggregate 2.1, 2.1 ', which is moist or has no residual moisture without prior drying, is determined before packing by a suitable device - not shown here.

A moisture measurement can be carried out, for example, by means of a conductivity measurement. Moisture sensors are also available which change their electrical resistance or their capacity depending on the moisture of the test substance. A downstream measuring device for the electrical resistance or the capacitance is then calibrated in "humidity units", which are preferably given in a table

or conversion device indicate the amount of water to be added for a certain volume of the building material mixture. Then either the water content contained in the additive is increased by adding water before and / or after filling in the chamber to a value suitable for the intended application, or the additional water content to be added is filled into a separate chamber of the multi-chamber packaging.

The moisture-sensitive or water-binding component is filled into at least one chamber that is protected against the ingress of moisture, the casing of which also protects against the ingress of moisture from the moist or residual moisture-free additive that does not set with the addition of water 2.1, 2.1 '.

A preferably funnel-shaped filling line 14 and 15 is provided on the underside of the storage containers 2 and 3. A valve 4 and 5 is provided in each of the filling lines in order to be able to control on the one hand the time of filling and on the other hand the filling quantity into the packaging chambers (compare positions 17.1 and 17.2 in FIG. 2) of the container 17.

According to a preferred embodiment of the invention, the device 100 has a tube former 9, in which a flat film web 7, which can be unwound from a supply roll 6 driven by an electric motor 8, is formed into a tubular, closed sheath around the filler neck 14, 15 . Processing units 10, 11, 12, 13 are arranged downstream of the tube former 9 in the transport direction of the tubular envelope, where the two free ends of the tubular casing are welded together by the film welding devices 19, 21, 22, 25 moving in the transport direction or transversely thereto and the weld seams required to form the individual packaging chambers of the container are produced. The packaging chambers of the container 17 extend parallel to one another and parallel to the filling direction 60 of the components 2.1, 3.1 of the building material mixture or the transport movement of the film tube.

After the bottom weld seam (compare position 17.4 in FIG. 2) of the container 17 has been produced by the film welding device 21, the valves 4, 5 in the filler lines 14, 15 are activated and the components 2.1, 3.1 of the building material mixture are simultaneously in the respective Packing chamber of the container 17 still open on one side. When the filling of the packaging chambers extending parallel to one another and to the transport direction of the film strip or the filling direction 60 of the components has ended, the semifinished container is transported further. The sealing of the packaging chambers by the film welding device 21 is carried out with a double weld seam, since the bottom seam welding seam of the container following in the transport direction of the film tube is simultaneously produced with the sealing. A blower 22 ensures rapid cooling of the weld seam.

The hose former, the filler neck and the processing units form a compact structural unit, which are shown in FIG. 1 as separate system parts only for the sake of a better overview. A separate separation unit 13 is provided for the separation of the individual, filled containers, the separation between the two weld seams produced by the film sealing device 21 being carried out using electrical or mechanical means 22.

A controller 1 is provided for coordinating the individual work steps when packaging the components of the building material mixture.

This control is preferably designed to be programmable and coordinates in particular the advance of the elastic film web 7 when the container 17 is formed, the point in time for activating the valves 4, 5 in the filling lines 14 and 15 as a function of the function of the film sealing unit 21 and the speed or the time and duration of the activation of the drives 18, 20, 23 and 24 provided on the individual processing units 9, 10, 11, 12 and 13 or film sealing devices 19 and 21 and the separating unit 13 .

The preferred embodiment of the device 100 for packaging components of a building material mixture have on their processing units 10, 11, 12, 13 electric drives 18, 20, 23 and 24, the speed of which is determined by the controller 1 in each case in the size that a uniform tensile load on the film strip 7 is ensured on a cross conveyor 16 during transport from the supply roll 6 to the stacking of the filled containers 17.

The device 100 for packaging the components 2.1 and 3.1 of a building material mixture has an essentially vertical extension in order to take advantage of the force of gravity to minimize the effort for the drive energy. In order to be able to take advantage of this, the tubular packaging chambers to be filled with the components of the building material mixture (compare positions 17.1 and 17.2 in FIG. 2) of the container 17 are arranged parallel to one another and to the filling direction of the components.

FIG. 2 shows a perspective view of a cross section through a filled container 17 made of a weldable polyethylene film 7.

The container 17 has two tubular packaging chambers 17.1 and 17.2 which extend parallel to one another and are delimited by the weld seams 17.3, 17.4 and 17.5. The weld seam 17.3 is created when the hose is formed. The weld seams 17.4 and 17.5 are created one after the other in the processing units (compare positions 10 and 11 according to FIG. 1) before the components of the building material mixture are filled into the two packaging chambers at the same time. The direction of filling of the mixture components is designated by 60.

The packaging chamber 17.1 contains a filling with moist gravel as an additive 3.1, the packaging chamber 17.2 is filled with the dry binder cement 2.1.

The quantitative ratio of components 2.1 and 3.1 determined by the volume of the packing chambers 17.1 and 17.2 is approximately 1 to 2.5. This ratio is chosen in accordance with the area of application of the high-quality concrete to be made with mixing water from components 2.1 and 3.1, so that the user only has to take the entire content Remove the packing chambers and mix them with water.

FIG. 3 shows the block diagram of a device 200 for packaging bulk building materials according to the invention for producing a building material mixture, in which the two components 2.1, 3.1 stored in the storage containers 2, 3 are alternately filled into the packaging chambers of a container 47 via filling nozzles, which in the filling direction 60 are arranged one behind the other.

The container 47 consists of a film tube, which is formed from a flat film web 49 in a tube former 33, the free ends of the film web being welded. In the processing units 34 and 35, depending on the filling process, transverse weld seams are produced one after the other, which separate the individual packaging chambers from one another. The filled, two-part containers are separated in the separating unit 36 and then stacked on a cross conveyor 46 and transported away.

The device 200 has a programmable controller 31, by means of which the activation of a filler neck changer 30, a filling valve 32, the electric drives 37, 39, 41, 52 and the film sealing devices 38, 40 and the separating means 42 of the processing units 34, 35 or the separation unit 36 coordinates. This is necessary in order to ensure, on the one hand, a uniform mechanical loading of the film tube during the feed movement during the entire packaging process and, on the other hand, an alternate filling of the packaging chambers of the container 47 with the components of the building material mixture. The film sealing devices 38, 40 of the processing units 34, 35 each have a line connection 43, 44 with the controller 31 in order to be able to transmit a signal to the controller 31 after production of the respective weld seam, which signal in turn can be transmitted via the control lines 50,

51 the filler neck changer 30 and the fill valve 32 provided on this for the purpose of filling the components 2.1, 3.1 of the building material mixture into the packaging chambers.

The hose former, the filler neck changer and the processing units form a compact structural unit, which are shown in FIG. 3 only as separate system parts for the sake of a better overview.

A controller 45 is provided for a uniform movement of the film tube within the system 200. The controller 31 receives the current speed values from the electrical drives 37, 39 and 41 via signal lines and activates the controller 45, which in turn controls the drive

52 of the film supply roll 48 and which drives drives by the way.

A container 47 packed with the device 200 according to FIG. 3 is shown in perspective in FIG. The container has two packaging chambers 47.1 and 47.2, which are separated from one another by the weld seam 47.4 produced between the individual filling processes. The longitudinal seam 47.3 of the container is already welded from the flat welding film during the manufacture of the film tube.

The filled container 47 has a weight of 25 kilograms and contains 2.1 in the packaging chambers 47.1 and 47.2 as an absolutely dry binding agent and as a natural additive. wet sand 3.1. The amount of material that can be removed from the container 47 is adjusted in terms of quantity in such a way that a plastering mortar can be produced when mixed with the addition of a quantity of mixing water depending on the degree of moisture in the sand.

FIGS. 5 and 6 each show a bucket-shaped container 57 as a packaging for the components 2.1 ', 3.1' and 3.2 of a building material mixture in a sectional view.

According to FIG. 5, in the bucket 57 made of a plastic, fine-grained sand 2.1 'as moist components, which, by adding water, has the amount of water required to produce the building material mixture, and two dry components in the form of cement 3.1' and a colored powder 3.2 in metered amounts Packed quantity. The bucket 57 can be closed essentially airtight by a cover 57.4. The dry components 3.1 'and 3.2 are packaged separately in an elastic film cover 57.1 and 57.2, each of which has a manually operated quick-release fastener 57.3. The quick release fastener 57.3 is only shown schematically and is designed as a predetermined breaking point with perforations.

By opening the quick-release fasteners, the contents 3.1 ', 3.2 can be emptied from the film sleeves 57.1 and 57.2 into the bucket 57, where they can be mixed with the moist component 2.1' to form a colored concrete.

The bucket shown in FIG. 6 contains moist sand 2.1 'and dry cement 3.1', which are only separated from one another by an intermediate layer designed as an elastic plastic film. To prevent undesirable mixing of the To prevent both components, the dry component 3.1 'is hammered into the free film ends 57.6.

To produce the building material mixture, the intermediate layer is pulled out and the components can be mixed in the bucket 57.

The container 67 shown in a sectional illustration in FIG. 7 has an inner bucket 67.2 which is inserted into the filling opening of a bucket 67.1. The container 67 is closed by a cover 67.3.

FIGS. 8 and 9 show the construction details of detail E according to FIG. 7 in two variants, the inner bucket 67.2, 67.2 'forming a packaging chamber 67.4 for the dry component 3.1' of the building material mixture and having a filling opening which extends radially outwards. Kenden collar 69, 69 'on which is supported in the opening area of the bucket 67.1, 67.1' on an annular surface of the material-reinforced wall. An annular collar 68, 68 'with a thread with a relatively large pitch is formed on the outer wall of the bucket in the opening area.

A cup-shaped cover 67.3, 67.3 ', which extends across the opening area of the bucket 67.1, 67.1', is screwed to this ring collar, the top of the collar 69, 69 'forming an annular sealing surface 70 with the inside of the cover and the packaging chamber 67.4 for the dry component 3.1' being moisture-tight closes.

Likewise, the underside of the collar 69, 69 'of the inner bucket 67.2, 67.2' is pressed onto the wall edge in the opening area of the bucket 67.1, 67.1 ', whereby a circular Annular sealing surface 71 is created and the space located below the inner bucket, forming a further packaging chamber 67.5, is closed moisture-tight. The moist component 2.1 'of the building material mixture is located in this packaging chamber.

The inner bucket 67.2, 67.2 'consists of a soft plastic, so that a very good sealing effect can be achieved. This prevents undesired, premature mixing of the components 2.1 'and 3.1' even when the container 67, 67 'tips over. With regard to the sealing effect, the sealing surfaces 70, 71 can be relieved by a good fit of the inner bucket. The buckets 67.1, 67.1 ', the inner buckets 67.2, 67.2' and the covers 67.3, 67.3 'can be used several times in a stable, mechanically hard-wearing design.

The direction of filling of the components of the building material mixture into the differently designed or differently filling, bucket-shaped containers is designated by 60 in FIGS. 5, 6 and 7. * * * * *

Claims

Expectations

1. Method for packaging powdery and / or granular, pourable components (2.1, 3.1, 2.1 ', 3.1', 3.2), a building material mixture consisting of at least one moisture-sensitive or water-binding component and at least one non-moisture-sensitive and not with water-binding component as an additive, the additive (2.1, 2.1 ') being filled into a separate chamber (17.2 or 47.2) of a multi-chamber packaging (17, 47, 57) without prior drying in at least a residual moist state, the moisture content of the without prior drying of moist or residual moist aggregate (2.1, 2.1 ') is determined before packaging and either the water content contained in the aggregate is increased to an appropriate value for the intended application by adding water before and / or after filling in the chamber or the additional water to be added into a separate Ka the multi-chamber packaging is filled, and the moisture-sensitive or water-binding component is filled into at least one chamber that is protected against moisture access, the wrapping of which also protects against moisture access from the non-moisture-sensitive and non-water-binding additive or residual moisture (2.1, 2.1 ') forms.

2. The method according to any one of the preceding claims, characterized in that the dry component and the moist additive (2.1, 3.1) are filled substantially simultaneously into adjacent packing chambers (17.1, 17.2) which open parallel to the filling direction (60) , which are then closed together.

3. The method according to any one of the preceding claims, characterized in that the dry component and the moist additive (2.1, 3.1, 2.1 ', 3.1', 3.2) in succession in a, preferably as a film bag or tube or bucket-shaped container ( 17, 47, 57) are filled in, in which the packaging chambers (47.1, 47.2, 57.1, 57.2) are arranged one behind the other in the filling direction (60), with each time a component being filled is separated from the next one by welding, Glue or insert a film web (57.5).

4. Container, which is produced according to the method according to any one of the preceding claims, characterized in that at least one of the non-moisture-sensitive and not setting with water additive additives (2.1, 2.1 ') in the moist or residual moist state in a separate chamber (17.2 or 47.2) of a multi-chamber packaging (17, 47, 57) and the moisture-sensitive or water-binding component is provided in a chamber which is protected against the ingress of moisture and which also provides protection against Moisture access from the non-moisture-sensitive and non-water-binding additive or moist additive forms (2.1, 2.1 '), the water content to be added to the residual moist mixture being provided in a separate chamber.

5. Container according to claim 4, characterized in that the packing chambers (17.1, 17.2 or 47.1, 47.2.) Consist of a film material (7, 49) which can be welded by the action of heat or ultrasound.

6. Container according to claim 5, characterized in that the packaging chambers (17.1, 17.2 or 47.1, 47.2) are separated from one another by welding seams (17.3, 17.4, 17.5 or 47.3, 47.4) produced by means of heating or ultrasound.

7. Container according to claim 6, characterized by the design as, in particular made of plastic, bucket (57, 67.1).

8. Container according to claim 7, characterized by an inner bucket (67.2, 67.2 ') forming a first packaging chamber (67.4) for the dry building material component (3.1') with a circumferential collar (69, 69) which extends essentially radially outwards '), which is supported on the circular bucket rim, and one with a second packaging chamber (67.5) for the moist component (2.1 ') forming bucket (67.1, 67.1') screw-on or otherwise lockable lid (67.3, 67.3 ').

9. Container according to claim 8, characterized in that the bucket (67.1, 67.1 ') in the opening area on the outer wall has a thread or some other locking means ring collar (68, 68') on which a cup-like opening area of the bucket overlapping lid (67.3, 67.3 ') is screwed or locked.

10. Container according to claim 8 or 9, characterized in that the collar (69, 69 ') with both, preferably in

Opening area of the wall-reinforced bucket rim and with the inside of the lid each form an essentially annular sealing surface (70, 71, 70 ', 71') for moisture-proof separation of the packaging chambers (67.4, 67.5).

11. Container according to one of claims 8 to 10, characterized in that the inner bucket (67.2, 67.2 ') is made of a soft plastic material.

12. Container according to one of claims 4 to 11, characterized in that the moist component (2.1 ') or the residual moisture component in a separate, moisture-tight envelope (57.1, 57.2) together with the other - not additionally packaged component - in one common outer packaging forming container is arranged.

13. A container according to claim 11, characterized in that the envelope (57.1, 57.2) consists of a plastic film which has a, preferably manually operable, quick-release fastener (57.3) for facilitating emptying of the contents into the container (57) forming a mixing vessel .

14. Container according to one of claims 4 to 13, characterized in that the moist (2.1 ') and the dry component (3.1') are arranged in a container forming a common outer packaging separated by a film-like intermediate layer (57.5).

15. Container according to one of claims 4 or 13, characterized in that a further binder, a dye, a filler and / or a material of construction chemistry are provided as additional components, in separate packaging, the packaging also providing protection against the ingress of moisture the moist or residual moist aggregate that is not sensitive to moisture and does not set with the addition of water (2.1, 2.1 ')

16. Container according to claim 15, characterized in that the filler consists of styrofoam balls and / or expanded clay.

* * * * *