BE1017892A3 - - Google Patents

Download PDF

Info

Publication number
BE1017892A3
BE1017892A3 BE200700588A BE200700588A BE1017892A3 BE 1017892 A3 BE1017892 A3 BE 1017892A3 BE 200700588 A BE200700588 A BE 200700588A BE 200700588 A BE200700588 A BE 200700588A BE 1017892 A3 BE1017892 A3 BE 1017892A3
Authority
BE
Belgium
Prior art keywords
aerated concrete
density
building
layers
liquid
Prior art date
Application number
BE200700588A
Other languages
Dutch (nl)
Original Assignee
Cellumat Nv
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 Cellumat Nv filed Critical Cellumat Nv
Priority to BE200700588A priority Critical patent/BE1017892A3/nl
Priority to BE200700588 priority
Application granted granted Critical
Publication of BE1017892A3 publication Critical patent/BE1017892A3/nl

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/50Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/008Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0068Embedding lost cores

Abstract

Method for manufacturing structural elements consisting of at least two layers of aerated concrete, with low and high density, respectively, characterized in that the method consists of applying a liquid aerated concrete mortar (17) in a mold (16); immersing at least partially pre-autoclaved slab (3) of aerated concrete of a different density in this liquid aerated concrete mortar (17); allowing the liquid aerated concrete mortar to rise; allowing to harden until a sufficient strength is obtained for the removal of the whole (18); the casing and then cutting of the whole (18) into building elements (19) with the desired dimensions and the desired number of layers; and finally autoclaving the building elements (19) to obtain a durable bond between the successive layers of low-density and high-density aerated concrete and to obtain the necessary compressive strength of the high-density aerated concrete.

Description

Method for manufacturing layered building elements.

The present invention relates to a method for manufacturing layered building elements.

More specifically, the invention is intended for the manufacture of building elements consisting of at least two layers of aerated concrete with different densities.

The present invention also relates to the layered building element.

It is known that building elements made of low-density aerated concrete have good heat-insulating properties, but that they often have insufficient bearing capacity to realize constructions with this.

Building elements consisting of several layers of aerated concrete are already known in which a plate of low-density aerated concrete is glued to a plate of aerated concrete of a higher density or another building material, and wherein the aerated concrete of high density fulfills the function of supporting element in the construction and aerated concrete of low density fulfills the function of thermal insulator.

A disadvantage of this method is that it is labor-intensive and time-intensive due to the gluing in which the individual plates have to be manipulated.

Another disadvantage is that the glued together aerated concrete slabs must be perfectly aligned to each other to avoid dimensional deviations in the end product.

Another disadvantage is that the dimensional deviations of the glued plates cumulate in the end product.

Another disadvantage is that glue is less vapor-permeable than aerated concrete, so that condensation and moisture problems can occur in the building element.

In addition, any glue residues in the building element can be visible.

The present invention has for its object to provide a solution for the aforementioned and other disadvantages.

To this end, the invention relates to a method for manufacturing building elements consisting of at least two layers of aerated concrete, of low and high density, respectively, wherein the method consists of applying a liquid aerated concrete mortar in a mold; immersing at least partially one pre-autoclaved aerated concrete slab of a different density in said liquid cellular concrete; allowing the liquid aerated concrete mortar to rise, allowing it to harden until sufficient strength is obtained for the removal of the whole; the casing and then cutting of the whole into building elements with the desired dimensions and the desired number of layers; and finally autoclaving the building elements in order to obtain a durable bond between the successive layers of aerated concrete with low and high density and to obtain the necessary compressive strength of the aerated concrete with high density.

An advantage is that as a result of the autoclaving of the building elements, the cellular concrete that has already been autoclaved and the cellular concrete still to be autoclaved connects, whereby a very well-bonded whole is obtained by the formation of crystalline compounds.

Another advantage is that the building component obtained from aerated concrete is autogenous and consists solely of aerated concrete, which results in a more uniform behavior of the whole.

Another advantage is that this autogenous cellular concrete building element has improved thermal and acoustic insulation qualities and improved load-bearing qualities than the component plates.

Another advantage is that this method can be effected mechanically, which benefits the controllability and the accuracy of the components and that this method is less labor-intensive and less time-intensive and therefore cheaper.

Another advantage of this method is that there is no glue consumption, so that the risk of condensation and moisture problems in the building element is much smaller and glue costs are avoided.

Preferably, the aerated concrete layer obtained from the pre-autoclaved aerated concrete plate forms a low-density layer and the aerated concrete layer from the liquid aerated concrete mortar forms a layer of higher density, whereby the whole can be cut with conventional cutting wires.

The present invention also relates to a building element consisting of layers of aerated concrete of different densities, wherein the building element is autogenous or in other words only contains aerated concrete.

With the insight to better demonstrate the features of the invention, the steps from the method for manufacturing building elements according to the invention are described below, as an example without any limiting character, with reference to the accompanying drawings, in which: Figure 1 represents the first step in the method for manufacturing building elements according to the invention; figure 2 represents a view according to arrow F2 in figure 1; figures 3 to 19 show the following steps of the method for manufacturing building elements according to the invention; Figures 20 to 28 show a number of embodiments of a building element.

Figure 1 shows diagrammatically the first step of the method that uses a sub-device 1 consisting of a clamping device 2 for spacing apart pre-autoclaved aerated concrete slabs 3 and a mounting frame 4 arranged above them for receiving the aforementioned plates 3.

The surface of the pre-autoclaved plates 3 can optionally be treated with water or another substance so as not to inhibit the rising of the liquid concrete mix.

The clamping device 2 in this case consists of a number of parallel profiles 5 which are arranged at a distance from each other corresponding to the thickness of the aforementioned plates 3 and which are provided with upright walls 6 between which these plates 3 can be held in an upright position.

The distance of the profiles 5 is optionally adjustable as a function of the thickness and the number of plates 3 used.

The mounting frame 4 consists of a peripheral frame 7 to support a grid 8 of beams 9, as shown in Figure 2, to which parallel rows of downwardly directed pins 10 are attached above the pre-autoclaved aerated concrete slabs 3 in the clamping device 2.

The number and position of the beams 9 and the pins 10 can optionally be adjusted in function of the dimensions of the pre-autoclaved aerated concrete slabs.

Each pin 10 is provided with a stop 11 at the top.

The frame 7 can be manufactured from steel or from another suitable material.

For manipulating the plates 3 present in the clamping device 2, the fastening frame 4 with the pins 10 is lowered or pushed in the direction of arrow P, as shown in figure 3, by means of a lifting bridge or other suitable means for this purpose. not shown in the figures, and with the intention of pushing the pins 10 into the pre-autoclaved aerated concrete plates 3 up to the abutments 11.

As shown in Figure 4, needles 12 can be provided in the beams 9 or in additional added beams of the frame 7 between the pins 10 from which reinforcement nets 13 can be hung.

After the pins 10 have been pushed sufficiently deep into the autoclaved plates 3, the fastening frame 4 can be lifted, as shown in Figure 5, and moved to a further sub-device 14 for the following steps of the method according to the invention, which is shown in figure 6.

The sub-device 14 used in the next step consists essentially of a mold 15, the dimensions of which, for example, correspond to a length of 6 meters, a width of 1.50 meters and a height of 0.70 meters, in which, as shown in Figure 6, a measured amount of liquid aerated concrete mortar 16 is applied to form aerated concrete that after curing preferably has a higher density than that of the pre-authorized aerated concrete slabs 3.

The pre-autoclaved aerated concrete slabs 3 and any reinforcement nets 13 are hereby aligned with the casting mold 15.

Preferably the aerated concrete has a density of more than 300 kg / m3 and the aerated concrete of low density has a density of less than 150 kg / m3.

The pre-autoclaved plates 3 and any reinforcement nets 13 between them are lowered in a next step as shown in Figure 7, as soon as possible after pouring the liquid cellular concrete mortar 16 into the casting mold 15, by moving the fastening frame 4 to which the plates 3 are hung up.

The amount of this liquid aerated concrete mortar 16 can be a measured amount to ensure that when the liquid aerated concrete mortar 16 is raised, the level of the liquid aerated concrete mortar 16 rises to the highest level of the plates 3, as shown in Figure 8.

Due to the difference in density between the pre-autoclaved aerated concrete slabs 3 and the liquid aerated concrete mortar 16 and the upward force of the rising process, when the liquid aerated concrete mortar 16 is raised, the fixing frame 4 will experience an upward force.

To prevent the fastening frame 4 with the plates 3 from aerated concrete moving up, the fastening frame 4 can be clamped to the mold 15.

As soon as the liquid aerated concrete mortar 16 has hardened sufficiently and has therefore acquired the necessary strength, the fastening frame 4 can be lifted in the direction of the arrow Q, as shown in figure 9, whereby the pins 10 are removed from the autoclaved aerated concrete plates 3 and the autoclaved plates 3 remain stuck in the non-autoclaved aerated concrete mortar 16.

If reinforcement nets 13 were also suspended from the fastening frame 4, the needles 12 holding these nets 13 should first be brought into a suitable position so that they are disconnected from the nets and do not pull the nets 13 along when the fastening frame 4 is pulled up. leaving the reinforcement nets 13 in the cellular concrete that has not yet been supplied, as shown in Figure 10.

By this method one thus obtains a block of aerated concrete with different successive layers of aerated concrete of different density, which are alternately autoclaved and not (Figure 9) and in which non-autoclaved layers can optionally be provided with a reinforcement net 13 (Figure 10).

After removing the fastening frame 4, the block-shaped unit 17 obtained can be removed, as shown in figures 11 and 12.

The whole 17 can then be cut to form the building elements 18 with the desired dimensions and the desired number of layers.

The cutting is carried out, for example, by means of smooth or twisted steel wires 19, as shown in Figures 13 to 19.

Figures 13 to 16 show a horizontal production system 20 in which the horizontal cutting wires cut simultaneously through the pre-autoclaved cellular concrete plates and the cellular concrete mortar to be autoclaved (Figures 13 to 15). The vertical cutting wires can cut through the pre-autoclaved (Figure 15), and / or through the cellular concrete still to be autoclaved (Figures 13 and 14). The transverse cutting wires during the transverse cutting, as for example shown in Fig. 16 for the case without reinforcement nets, simultaneously cut through the non-autoclaved and the already autoclaved aerated concrete.

Figures 17, 18 and 19 show a tilt production system 21. Hereby, when cutting horizontally, the non-autoclaved aerated concrete is cut (Figure 17) and / or the already autoclaved aerated concrete (Figure 18). During vertical cutting (figures 17 and 18) and cross cutting (figure 19), the already autoclaved and the not yet autoclaved aerated concrete are cut simultaneously.

The distance between the steel wires 19 can be chosen such that building elements 18 are obtained with a layer of high-density aerated concrete and a low-density aerated concrete, as shown in Figure 20.

The distance between the steel wires 19 in Figures 13 to 15 can also be chosen such that a sandwich panel 22 is obtained in which a core of low-density aerated concrete is surrounded by two adjacent layers of high-density aerated concrete, as shown in Figure 21.

One of the high-density layers may or may not be armed, as shown in Figure 22.

When cutting the building elements 18, profiling can also take place, so that after cutting building elements 18 with, for example, tongue 23 and groove 24 can be formed, an example of which is shown in Figure 23.

The whole 25 that is composed of the obtained building elements 18 (figures 20 and 21) is then autoclaved, the pre-autoclaved aerated concrete plates and the aeroclaved aerated concrete joining together, whereby a building element with added insulation, acoustics and bearing qualities is created.

It is possible to mill handles before or after autoclaving.

By finishing the autoclaved building elements, all kinds of shapes can be obtained, some of which are shown by way of example in Figures 26 to 28.

It goes without saying that the pre-autoclaved aerated concrete plates in the building element undergo a heat treatment for a second time when the building element is autoclaved, but this second heat treatment in no way detracts from the thermal and acoustic quality of this aerated concrete, on the contrary indeed.

The structure of the aerated concrete with layers of different densities yields building elements with a bearing capacity which is mainly determined by the layers with high density, which may or may not be reinforced, and which is sufficient to be incorporated into a load-bearing structure, while the thermal insulation value of such a building element is mainly determined by the layer or layers with low density.

The layered structure also provides a building element with favorable properties in the field of acoustic insulation.

The present invention is by no means limited to the exemplary embodiment (s) described and shown in the figures, but such a method can be implemented in various variants without departing from the scope of the invention.

Claims (16)

  1. Method for manufacturing building elements consisting of at least two layers of aerated concrete, with low and high density respectively, characterized in that the method consists of applying a liquid aerated concrete mortar (16) in a mold (15); immersing at least partially pre-autoclaved slab (3) of aerated concrete of a different density in this liquid aerated concrete mortar (16); allowing the liquid aerated concrete mortar (16) to rise; allowing to harden until a sufficient strength is obtained for the removal of the whole (17); the casing and then cutting of the whole (17) into building elements (18) with the desired dimensions and the desired number of layers; and finally autoclaving the building elements (18) to obtain a durable bond between the successive layers of low-density and high-density aerated concrete and to obtain the necessary compressive strength of the high-density aerated concrete.
  2. Method according to claim 1, characterized in that the cellular concrete layer obtained from the pre-autoclaved cellular concrete plate (3) forms a layer with a low density, while the cellular concrete layer formed from the liquid cellular concrete species (16) forms a layer with a high density.
  3. Method according to one of the preceding claims, characterized in that the pre-autoclaved aerated concrete slabs (3) are aligned with the casting mold (15).
  4. Method according to one of the preceding claims, characterized in that the pre-autoclaved aerated concrete slabs (3) are attached to a mounting frame (4) with pins (10) which are fastened to the material of the plates (3) are pushed.
  5. Method according to claim 4, characterized in that for mounting the plates (3) on the mounting frame (4) the plates (3) are arranged at a distance from each other in a clamping device (2).
  6. Method according to claim 4 or 5, characterized in that the plates (3) are immersed in the liquid aerated concrete mortar (16) by moving the fastening frame (4) on which the plates (3) are suspended.
  7. Method according to one of the preceding claims, characterized in that the amount of liquid aerated concrete mortar (16) that is introduced into the mold (15) is a measured amount that is such that when the liquid aerated concrete mortar (16) rises it reaches the highest level of the plates (3).
  8. Method according to one of claims 4 to 7, characterized in that the liquid aerated concrete mortar (16) is in a mold (15) to which the fixing frame (4) can be clamped.
  9. Method according to one of the preceding claims, characterized in that the cutting of the whole (17) into structural elements (18) is carried out by means of a smooth or twisted steel wire (19).
  10. Method according to claim 9, characterized in that the distance between the steel wires (19) is such that building elements (18) are obtained with a layer of high-density aerated concrete and a low-density aerated concrete.
  11. Method according to claim 9 or 10, characterized in that the distance between the steel wires (19) is such that a sandwich panel (22) is obtained with a core of low-density aerated concrete and two adjacent layers of high density.
  12. Method according to one of the preceding claims, characterized in that when cutting the aerated concrete, the layers of low and high density are cut simultaneously.
  13. Method according to one of the preceding claims, characterized in that profiling can also take place during the cutting of the formed aerated concrete elements.
  14. Method according to one of the preceding claims, characterized in that the low-density aerated concrete layers have a density of at most 150 kg / m3 and the high-density aerated concrete layers have a density of at least 300 kg / m3.
  15. 15. Building element consisting of layers of aerated concrete of different density, characterized in that the building element is autogenous.
  16. Building component according to claim 15, characterized in that the layers of high-density aerated concrete are provided with reinforcement nets.
BE200700588A 2007-12-10 2007-12-10 BE1017892A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE200700588A BE1017892A3 (en) 2007-12-10 2007-12-10
BE200700588 2007-12-10

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE200700588A BE1017892A3 (en) 2007-12-10 2007-12-10
FR0850430A FR2924635A1 (en) 2007-12-10 2008-01-24 Process for producing laminate building elements
EP08021024A EP2070671A1 (en) 2007-12-10 2008-12-04 Method for manufacturing layered building components

Publications (1)

Publication Number Publication Date
BE1017892A3 true BE1017892A3 (en) 2009-10-06

Family

ID=39639210

Family Applications (1)

Application Number Title Priority Date Filing Date
BE200700588A BE1017892A3 (en) 2007-12-10 2007-12-10

Country Status (3)

Country Link
EP (1) EP2070671A1 (en)
BE (1) BE1017892A3 (en)
FR (1) FR2924635A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2482196B (en) * 2010-07-23 2014-12-31 Page Concrete & Steel Ltd A concrete slab
CN102672798A (en) * 2012-04-24 2012-09-19 贵州博典建材化工科技有限公司 Simple production method for foam slurry core-filled building blocks
CN102672797A (en) * 2012-04-24 2012-09-19 贵州博典建材化工科技有限公司 Slip casting method of foam slurry heat-preservation wallboard
DE102012024885A1 (en) 2012-12-19 2014-06-26 Xella Baustoffe Gmbh Reinforced structural panel and method and apparatus for making the structural panel
DE102012024884A1 (en) 2012-12-19 2014-06-26 Xella Baustoffe Gmbh Thermal insulation panel has rectangular core plate with the limiting core plate surface which are encapsulated completely from casing whose thermal conductivity is higher than thermal conductivity of core plate
CN107584649A (en) * 2017-10-12 2018-01-16 孙章 A kind of method and its equipment for manufacturing complex heat-preservation aerated-block
DE102017126749A1 (en) * 2017-11-14 2019-05-16 WEKO Consulting and Engineering Ltd. block stone

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119919A (en) * 1977-03-28 1978-10-19 Kumagai Gumi Co Ltd Manufacture of light weight foamed concrete having strengthened surface
GB2068289A (en) * 1980-01-31 1981-08-12 Ytong International Ab Method for the production of building elements of the lightweight concrete type
JPH03146337A (en) * 1989-11-01 1991-06-21 Central Glass Co Ltd Composite panel and manufacture thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3146337B2 (en) 1995-02-10 2001-03-12 株式会社セキホー Seedling container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119919A (en) * 1977-03-28 1978-10-19 Kumagai Gumi Co Ltd Manufacture of light weight foamed concrete having strengthened surface
GB2068289A (en) * 1980-01-31 1981-08-12 Ytong International Ab Method for the production of building elements of the lightweight concrete type
JPH03146337A (en) * 1989-11-01 1991-06-21 Central Glass Co Ltd Composite panel and manufacture thereof

Also Published As

Publication number Publication date
EP2070671A1 (en) 2009-06-17
FR2924635A1 (en) 2009-06-12

Similar Documents

Publication Publication Date Title
US1809504A (en) Building construction
RU2608827C2 (en) Reinforced concrete structural element with slot for assembly and production method thereof
US8839593B2 (en) Pre-cast blocks for use in column construction
US9211653B2 (en) Method to produce a translucent layer composite construction element with integrated front plate
RU2465415C1 (en) Wall unit (versions), material for manufacturing of wall units, mould to manufacture wall units (versions), method to make wall units and flow line to manufacture wall units
US20120090260A1 (en) Prefabricated compound masonry units
CA2496704A1 (en) Prefabricated metal formwork module for concrete
CN101413304B (en) Cast-in-situ concrete hollow exterior wall and construction method thereof
DE10018212B4 (en) Process for producing a concrete ceiling element with rigid concrete support elements, ceiling element and device for carrying out the method
CN104963431A (en) Corner structural column construction method
CH701464A1 (en) Cast wall, floor or ceiling element and method for its production.
RS54106B1 (en) Process of building structures of prefabricated monolithic walls and precast floor slabs
KR101648851B1 (en) Deck plate for ceiling mold
US8720160B1 (en) Process for forming concrete walls and other vertically positioned shapes
CA1291632C (en) Brick panel walling
CN102814861B (en) Preparation method of reinforced concrete beam with demounting-free textile reinforced concrete (TRC) bottom mould
CN201486133U (en) Reinforced concrete double-shear wall template
CA2678452A1 (en) Device for anchoring concrete to an insulating panel and form employing the device
US8985546B2 (en) Exterior wall forms with core walls for the rapid manufacturing of concrete modular housing units
CN106079049A (en) The pouring mould and pour using method of a kind of board-like concrete reinforcement locating piece
US20110131905A1 (en) Cementitious deck or roof panels and modular building construction
US20040123556A1 (en) Wall unit forming method and apparatus
CN1210472C (en) Concrete building construction form unit and manufacturing device therefor, and concrete building constructed by using concrete building construction form
CN109610710B (en) Green concrete coincide floor
KR101986990B1 (en) Outside heat-insulation wall method and outside heat-insulation wall thereby

Legal Events

Date Code Title Description
RE Lapsed

Effective date: 20121231