• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention proposes a method of manufacturing a vertical earth-based wall, comprising at least a first step of preparing a substantially vertical formwork element (12, 18), a second stage of preparation of a material consisting of a mixture comprising at least 70 to 98% of silt earth, 1 to 10% of quicklime, and 1 to 15% cement, and successively at least a third step of filling a cavity (20) of the formwork element (12, 18) with the material, at least a fourth step of placing the material, a fifth step of drying the material and a sixth step of dismantling the formwork (10), characterized in that it comprises a preliminary step prior to the second step, during which the soil of silt is amended by introducing into the earth of silt aggregates whose size of at most 50 mm, in a mass proportion of 10 to 50% of the mixture.
    公开号:FR3016376A1
    申请号:FR1400093
    申请日:2014-01-16
    公开日:2015-07-17
    发明作者:Alain Lefebvre
    申请人:CEMATERRE；
    IPC主号:
    专利说明:

    [0001] The invention relates to a new improvement to a method of manufacturing at least one vertical wall made of earth.
    [0002] The invention relates more particularly to a method of manufacturing at least one vertical wall based on earth, comprising at least a first step of preparing a substantially vertical formwork element determining the thickness of the wall to be made, a second step for preparing an earth material m in the course of which a mixture is prepared constituting said earthy material comprising at least: silty, clayey and / or sandy earth, in a mass proportion of 70 to 98%, quicklime, natural or artificial, in a mass proportion of 1 to 10%, - cement, in a mass proportion of 1 to 15%, and successively at least a third step of filling a cavity of the element of formwork with the material, at least a fourth step of placing the material, a fifth step of drying the material and a sixth step of disassembly of the formwork. The construction of vertical earth-based walls has been known for a long time. One of these types of construction, known as "rammed earth", is the use of compacted raw earth in formwork or bunching. The earth is thrown into the formwork in small layers of 0.10 m to 1 m, then compacted manually in the formwork with a pestle. This type of construction makes it possible to obtain a ground-based wall that is sufficiently porous to allow ideal breathing of the premises it delimits, but its use is limited to reduced heights because of the low compressive strength of the building. material used. It is therefore not possible with this method to raise high walls. Moreover, the "rammed earth" is due to its porosity which is very sensitive to erosion and therefore offers only limited duration.
    [0003] To overcome this drawback, it has been proposed in FR-2935.008 a new construction method using a new material for the construction of high walls that can enjoy a long service life.
    [0004] For this purpose, it has been proposed a method of the type described above, wherein the mixture comprises at least silt earth, quicklime, and cement, to obtain said material. According to this method it has been proposed to use in particular silt earth in an undetermined proportion, quicklime in a proportion of 2% to 3%, and cement in a proportion of 3% to 15%. Such a method gives overall satisfaction compared to traditional rammed earth.
    [0005] However, the use of new methods of tamping the mixture, in particular by vibration, has made it possible to determine new ranges of use of these components, the material then having even higher and unexpected resistance capacities.
    [0006] Also, it was proposed in the application EP-A2-2.431.545 filed by the applicant a method of manufacturing at least one vertical wall earth-based of the type described above, during a mixing step which is prepared a mixture comprising at least 70% to 98% clay and / or sandy loam earth, 1% to 10% natural or artificial quicklime, and at least a portion of the cement. 1 to 15%.
    [0007] However, under certain drying conditions, it has been found that shrinkage or cracking phenomena make it necessary to use the material in a restrictive manner. One solution to overcome these disadvantages is to increase the particle size of the mixture. For this purpose, the invention provides a manufacturing method of the type described above in which during a mixing step which is prepared a mixture amended by aggregates. For this purpose, the invention proposes a manufacturing method of the type described above, characterized in that it comprises a first additional step prior to the third step, during which at least one of the components of said mixture is added to aggregates whose size is less than or equal to 50 mm, in a mass proportion of 10 to 50% of the mixture constituting said earthy material. According to other characteristics of the invention: the aggregates introduced during the preliminary stage consist of: - natural aggregates, in particular sand and / or gravel, and / or - recycled aggregates, in particular crushed concrete. the process comprises a second additional step prior to the third step, during which at least one of the components of said mixture is added a mixture comprising at least one adjuvant among: a plasticizing agent in a mass proportion of at most 3%, especially a polymer especially of polycarboxylate type, and / or a rheological maintenance agent, in a mass proportion of at most 2%, in particular a composition based on polymers, and / or a binder additive, in a mass proportion of at most 10%, consisting of a pozzolanic additive, in particular a metakaolin obtained by calcining kaolin and / or kaolinic clay, and / or an anti-shrinkage agent in a mass proportion of from plus 5%, especially based on calcium sulphate combined with a glycol ether, and / or - a water retaining agent in a proportion of at most 2%, in particular based on cellulose, - a synthetic resin in a mass proportion of at p 5%, especially based on styrene butadiene, - during the second step of preparation of the material, a mixture is prepared, in addition comprising fibers in a mass proportion of at most 1%, the fibers comprise synthetic fibers. , In particular of polypropylene, the fibers comprise natural fibers, in particular of linen or of cotton. the mixture is prepared according to a mass moisture content of 5 to 50%, to allow air to be substituted for the water of the mixture during its evaporation, in order to confer a high heat-insulating capacity on the material once said material is dry, said rate being obtained in particular by adding fresh water during the second material preparation step, - during the second material preparation step, a mixture is prepared which additionally comprises a air entrainer, to increase the amount of air in the mixture in the form of fine stable and regular size air bubbles uniformly distributed in the mixture, - during the second stage of preparation of the material, the mixing is carried out using a kneader, in particular a mobile kneader with horizontal or vertical axes allowing the realization of the mixture on the site where the wall must be made, - at the end of the sixth step of disassembly of the formwork, it is sprayed on any free surface of the material a curing product to oppose the evaporation of the water contained in the material, - the method comprises at least a succession of series of steps including each comprises at least the first, third and fourth stages, to enable the wall to be mounted by successive filling and placing of the material in formwork elements which can be stacked one on top of the other, - the method comprises at least one succession of series of steps, each of which comprises at least a third and a fourth step, to enable the wall to be mounted by successive filling and placing of the material in one-piece formwork elements; the method comprises a third additional step interposed between the first and second third step, during which is introduced into the formwork element at least one load reinforcement element of the wall, a fourth step of placing the material is carried out at least with the aid of a vibrating device, in particular a device for vibrating the shuttering element and / or at least one vibrating needle dipped into the mixture. Other features and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which: FIG. 1 represents a first embodiment of a third step; the method of the invention implemented using the formwork according to the invention; FIG. 2 represents a first embodiment of a first embodiment of the fourth step of the method of the invention; FIG. 3 represents a first embodiment of a new third step of the method according to the invention; FIG. 4 represents a first embodiment of the sixth step of the method according to the invention; FIG. 5 represents a second embodiment of a fourth step of the method of the invention implemented at the use of the formwork according to the invention; FIGS. 6 and 7 show a second embodiment of new fourth steps for carrying out the method of the invention; FIG. 8 represents a second embodiment of the sixth step of the method according to the invention. In the following description, like reference numerals denote like parts or having similar functions. The figures show the implementation of a method of manufacturing a vertical earth-based wall according to the invention. In known manner, such a method comprises at least a first step of preparing a substantially vertical formwork element determining the thickness of the wall to be produced, a second step of preparing an earthy material, and successively at least a third step of filling the shuttering element with the material, at least a fourth step of placing the material, a fifth step of drying the material and a sixth step of disassembling the formwork.
    [0008] A method of this type is commonly used in the manufacture of concrete walls. However, one of the drawbacks of concrete walls lies in the difficulty of their implementation on light construction sites, the concrete 5 to be previously prepared and brought to the site. Furthermore, once cast and hardened, the concrete can be difficult to work, which makes it unsuitable for example to build a particular house in which must be arranged a large number of openings. Finally, concrete is a low breathability material. The construction in "rammed earth", that is to say in clay simply compacted, is easier to implement, but rammed earth is not likely to allow the construction of walls of high height, or likely to support significant loads. In addition, rammed earth offers only a poor resistance to humidity. According to a known design, there has been proposed a method according to which, during the second step of preparation of the material, a mixture is prepared comprising silt clay, clay and / or sand, in a mass proportion of 70 to 98 %, quicklime, natural or artificial, in a mass proportion of 1 to 10%, and cement, in a mass proportion of 1 to 15%. The material thus obtained has the advantages of traditional rammed earth, since the silt soil base which is used allows a good breathing of the material once said material has solidified. As a result, the material also has high thermal and sound insulation characteristics. It is particularly effective in its ability to play a firewall role. The material thus obtained is however much more resistant than ordinary rammed earth, because the presence of quicklime makes it possible to absorb the moisture of the material and because the cement makes it possible to reinforce the cohesion of the material. In this material, the earth used is clayey earth, sandy, or a mixture of these two types of earth in a proportion of 70 to 98%. According to this process, it is possible to choose a soil of fine clay loam, or a clay loam soil laden with pebbles. Such a mixture can be compacted by means of vibrating material tamping means, which make it possible to impart to the material outstanding strength characteristics similar to those of concrete. However, under certain drying conditions, it has been found that shrinkage or cracking phenomena occur in the walls thus molded, which make it necessary to use the material restrictively, taking a great deal of care, which makes its use difficult. One solution to overcome these disadvantages is to increase the particle size of the mixture. For this purpose, the invention provides a manufacturing method of the type described above in which, during a mixing step, a mixture modified by aggregates is prepared. For this purpose, the invention proposes a manufacturing method of the type described above, a first additional step prior to the third step, during which at least one of the components of said mixture is added aggregates whose size is smaller or equal to 50 mm, in a mass proportion of 10 to 50% of the mixture constituting said earthy material. Aggregates can be of two types. These may be natural aggregates, such as sand and / or gravel, or recycled aggregates, such as concrete or crushed mortar.
    [0009] Of course the different types of aggregates can be mixed and combine natural or recycled aggregates, in varying proportions. Furthermore, the process comprises a second additional step prior to the third step, during which at least one of the components of said mixture is added a mixture comprising at least one adjuvant which advantageously makes it possible to limit the phenomena even more effectively. shrinkage or cracking. Advantageously, it is possible to incorporate in the mixture a plasticizing agent in a mass proportion of at most 3%, in particular a polymer, especially of the polycarboxylate type. It is also possible to incorporate into the mixture a rheological maintenance agent. in a mass proportion of at most 2%, in particular a composition based on polymers. It is also possible to incorporate into the mixture a binder additive, in a mass proportion of at most 10%, consisting of a pozzolanic additive, in particular a metakaolin obtained by calcining kaolin and / or kaolin clay. It is also possible to incorporate in the mixture an anti-shrink agent in a mass proportion of at most 5%, especially based on calcium sulfate combined with a glycol ether. It is also possible to incorporate in the mixture a water-retaining agent in a proportion of at most 2%, especially based on cellulose. Finally, it is possible to incorporate in the mixture a synthetic resin in a mass proportion of at most 5%, in particular a styrene-butadiene-based resin. It will be understood that each of these adjuvants can be added to the mixture separately or in combination.
    [0010] Each of the first or second additional step may occur prior to the second step, by adding to one of the components, or during the second step, by adding to the mixture, without limitation of the invention.
    [0011] In any case, the dosage must be carried out in such a way that the aggregates represent a mass proportion of 10 to 50% of the final mixture. As a variant of the process forming the subject of the invention, during the second step of preparation of the material, a mixture comprising not only at least silt earth, quicklime, and cement is prepared, but also fibers in a proportion of at most 1%, which corresponds substantially to 0.1 to 15 kg per cubic meter of mixture. The fibers can be added to the mixture amended by the aggregates, regardless of whether adjuvants are added. According to a first variant of this second embodiment, the fibers comprise synthetic fibers, in particular polypropylene fibers. According to a second variant of this second embodiment, the fibers comprise natural fibers, in particular flax or cotton. Whatever the method of carrying out the process, whether or not the mixture is provided with fibers, it is preferable to use a normal setting cement available for example under the reference PORTLAND CPJ 45. This composition makes it possible to to obtain a material offering a compressive strength of about 20 to 30 MPa, which, unlike traditional rammed earth, makes it possible to produce walls several meters high during a single application of the process. Another particularly advantageous feature of the process which is the subject of the invention is that, whatever its mode of execution, during the second stage of preparation of the material, the preparation of the mixture at a moisture content of 5 to 50% allows the ambient air, as the material dries and the water it contains evaporates, to replace the water of the mixture. In this way, the air contained in the material imparts to said material, once dry, a high thermal insulation capacity. Depending on the moisture content required in the mixture, it will be possible either to be content with the moisture naturally contained in the constituent components of the mixture, or to obtain this moisture content by adding fresh water during the second stage of the process. preparation of the material. The advantage of this material is that it can be prepared on the site where the wall is to be built. Thus, during the second step of preparation of the material, the mixture can be produced using a kneader, in particular a mobile kneader with horizontal or vertical axes carried in known manner by a tractor-type construction machine ( not shown). However, this configuration is not limiting of the invention. Mixing can also be done in a conventional stationary concrete plant and routed to the job site via a conventional truck. Advantageously, during the second step of preparing the material, an air entrainer may be added to the mixture, making it possible to increase the amount of air in the mixture in the form of stable and regular-sized fine air bubbles. , evenly distributed in the mixture. According to a first embodiment of the process which has been represented in FIGS. 1 to 4, the manufacturing method preferably comprises at least one succession of series of steps, each of which comprises at least the first, third and fourth stages, for allow to mount the wall by successive filling and placement of the material in formwork elements stackable on top of each other.
    [0012] For this purpose, as illustrated more particularly in FIGS. 1 and 3, on a floor or slab 11, the formwork 10 comprises, in accordance with the invention, a stack of formwork elements each comprising at least one vertical wall element 12. interior, maintained by at least one strut structure 14, and an outer vertical wall member 18, at least the outer vertical formwork elements 18 being added successively to one another as the wall rises, that is to say during the third successive stages.
    [0013] As illustrated in Figure 1, it is possible to set up before all the elements 12 of inner vertical wall, and then successively the outer vertical formwork elements 18. This allows to set up only a forest structure 14 , set up from the beginning of the operation.
    [0014] Alternatively (not shown), it is possible to successively set in pairs the elements 12 of vertical inner wall and the outer vertical formwork elements 18, but this requires modification of the forest structure 14 as and when Stacking the elements 12.
    [0015] The elements 12 of inner vertical wall thus form an inner wall 15 and the outer vertical formwork elements 18 thus form an inner wall 16. The walls 15 and 16 thus delimit between them a cavity 20.
    [0016] Preferably, the formwork 10 is thus made during a first step during which the wall 15 is put in place in its entirety and a vertical formwork element 18. Then the mixture is prepared during the second stage. As illustrated in FIG. 1, which represents an initial third step of the method of the invention, the material 22 is then introduced into the cavity 20. Then, as illustrated in FIG. 2, during a fourth step of the process, the material 22 is put in place.
    [0017] Preferably, according to a first embodiment of this fourth step, the introduction of the material 22 is carried out at least with the aid of a vibrating device, in particular a device for vibrating the formwork element and one or more vibrating needles 24 immersed in the mixture, as shown in FIG. 2. These needles are of the type of those commonly encountered on construction sites for effecting the vibration of concrete. According to a second embodiment of this fourth step (not shown) the establishment of the material 22 could be achieved using a pestle. This pestle could be manual or pneumatic. Of course, it will be understood that alternatively, (not shown), the introduction of the material could be carried out according to a combination of these two variants, that is to say both with the aid of a pestle and vibration. If the wall obtained is high enough, then we go to a fifth step during which the material is allowed to dry, then to a sixth step during which we remove the formwork 10. If the wall is not high enough, at the end of the fourth implementation step, an external vertical element 18 is added during a new first step of preparing the formwork 10.
    [0018] Each element 18 can be fixed to the previous one by means of fasteners 30. Then the cavity 20 of material 22 is refilled according to a new third step, then this material 22 is put back into place with the help of the vibrating needle.
    [0019] The operation is then repeated until the desired wall height is obtained. From a given height, can be added to the formwork 10 a bridge 26 to circulate in height along the wall and perform the fourth stages of implementation. Finally, as illustrated in FIG. 4, in one embodiment as in the other, during a sixth step of disassembly of the formwork, the wall is released from the formwork 10. According to a second embodiment of the method which has been shown in Figures 5 to 8, the manufacturing method preferably comprises at least a succession of series of steps each of which comprises at least the first, third and fourth stages, to allow to mount the wall by filling and setting successive places of the material in fixed formwork elements. For this purpose, as illustrated more particularly in FIGS. 5 to 8, on a floor or a slab 11, the formwork 10 comprises, in accordance with the invention, an inner vertical wall element 12, maintained by at least one structure 14 of forestay, and an outer vertical wall element 18, both monoblocs. As illustrated in FIG. 1, it is possible to place the inner vertical wall element 12 beforehand, then the outer vertical shuttering element 18. This makes it possible to set up only one strut structure. 14, set up from the beginning of the operation. The inner vertical wall element 12 thus has an inner wall 15 and the outer vertical shuttering element 18 thus has an inner wall 16. The walls 15 and 16 thus delimit between them a cavity 20. Preferably, the formwork 10 is thus performed during a first step, shown in Figure 5, in which we set up as previously explained the elements 12 and 18. Then the mixture is prepared in the second step.
    [0020] The material 22 is then introduced into the cavity 20 during a third initial step of the process of the invention (not shown). Then, as illustrated in FIG. 5, during a fourth initial step of the method, the material 22 is put in place. Preferably, according to a first embodiment of this fourth step, the material 22 is put in place. performed at least with the aid of a vibrating device, in particular a device for vibrating the shuttering element and one or more vibrating needles 24 immersed in the mixture, as shown in FIG. These needles are of the type that are commonly encountered on construction sites to achieve the vibration of concrete. According to a second embodiment of this fourth step (not shown) the establishment of the material 22 could be achieved using a pestle. This pestle could be manual or pneumatic. Of course, it will be understood that alternatively, (not shown), the introduction of the material could be carried out according to a combination of these two variants, that is to say both with the aid of a pestle and vibration. If the resulting wall is high enough, then we go to a fifth step during which the material is allowed to dry, then to a sixth step, shown in FIG. 8, during which the formwork 10 is removed. is not high enough, at the end of the fourth placing step, the cavity 20 of material 22 is filled again according to a new third step (not shown), and then this material 22 is again put in place. Using the needle 24, as shown in Figure 6. As shown in Figure 7, the operation is then repeated until the desired wall height is obtained.
    [0021] From a given height, it is possible to add as previously to the formwork 10 a bridge 26 to circulate in height along the wall and perform the fourth stages of implementation.
    [0022] Preferably, at the end of the sixth dismantling step of the formwork which has been shown in FIGS. 4 and 8, at least one free surface of the material which has been deconstructed is sprayed with a curing product making it possible to oppose the evaporation of the the water contained in the material.
    [0023] It will also be noted that the method could comprise an additional step, interposed between the first and third steps, during which the formwork element 10, that is to say in the cavity 20, is introduced into at least one element load reinforcement of the wall (not shown).
    [0024] This load reinforcing element could consist of a welded mesh reinforcement similar to those used in pouring reinforced concrete. The invention thus makes it possible to erect high earth-based walls, for example walls three meters high and more, intended for individual dwellings, in a single "spoiled", that is to say in one application of the process. The walls thus obtained have high qualities of resistance while allowing a certain ventilation of the dwellings, by their breathable and insulating qualities. Moreover, the method that is the subject of the invention makes it possible to raise such walls extremely quickly, the material being able to be manufactured on the site of the construction site, which makes it possible to considerably lower the manufacturing costs of a dwelling. individual or a work of another type.
    权利要求:
    Claims (14)
    [0001]
    REVENDICATIONS1. A method of manufacturing at least one vertical earth-based wall, comprising at least a first step of preparing a substantially vertical formwork element (12, 18) determining the thickness of the wall to be produced, a second step of preparing an earth material (22) during which a mixture is prepared constituting said earthy material comprising at least: - silt clay, clay and / or sand, in a mass proportion of 70 to 98 %, - quicklime, natural or artificial, in a mass proportion of 1 to 10%, - cement, in a mass proportion of 1 to 15%, and successively at least a third step of filling a cavity (20) of the formwork member (12, 18) with the material, at least a fourth step of placing the material, a fifth step of drying the material and a sixth step of disassembling the formwork (10). ), characterized in that it comprises a the first additional step prior to the third step, during which at least one of the components of said mixture is added aggregates whose size is less than or equal to 50 mm, in a proportion by mass of 10 to 50% of the mixture constituting said earthy material (22). 25
    [0002]
    2. Manufacturing process according to the preceding claim, characterized in that the aggregates introduced during the additional step consist of: - natural aggregates, in particular sand and / or gravel, and / or - aggregates recycled, including crushed concrete.
    [0003]
    3. Manufacturing process according to one of the preceding claims, characterized in that it comprises a second additional step prior to the third step, during which is added to at least one of the components of said mixture a mixture comprising at least one adjuvant among: a plasticizing agent in a mass proportion of at most 3%, in particular a polymer especially of polycarboxylate type, and / or a rheological maintenance agent, in a mass proportion of at most 2%, in particular a composition with polymer base, and / or - a binder additive, in a mass proportion of at most 10%, consisting of a pozzolanic additive, especially a metakaolin obtained by calcining kaolin and / or kaolin clay, and / or an anti-shrinkage agent in a mass proportion of at most 5%, especially based on calcium sulphate combined with a glycol ether, and / or a water retaining agent in a proportion of at most 2%; %, especially in cellulose, and / or - a synthetic resin in a mass proportion of at most 5%, especially based on styrene butadiene.
    [0004]
    4. Manufacturing process according to the preceding claim, characterized in that during the second step of preparing the material (22), is prepared a mixture further comprising fibers in a mass proportion of at most 1%.
    [0005]
    5. Manufacturing process according to claim 4, characterized in that the fibers comprise synthetic fibers, in particular polypropylene.
    [0006]
    6. Manufacturing process according to claim 4, characterized in that the fibers comprise natural fibers, in particular flax or cotton.
    [0007]
    7. Manufacturing process according to any one of the preceding claims, characterized in that the mixture is prepared according to a mass moisture content of 5 to 50%, to allow air to be substituted for the water of the mixture. during its evaporation, in order to confer a high thermal insulation capacity to the material once said material is dry, said rate being obtained in particular by adding fresh water during the second step of preparation of the material.
    [0008]
    8. Manufacturing method according to any one of the preceding claims, characterized in that during the second step of preparing the material (22), is prepared a mixture further comprising an air entrainer, to increase the amount of air in the mixture in the form of fine stable and regular sized air bubbles uniformly distributed in the mixture.
    [0009]
    9. Manufacturing process according to any one of the preceding claims, characterized in that during the second step of preparing the material (22), the mixture is produced using a kneader, including a mobile kneader. with horizontal or vertical axes allowing the realization of the mixture on the same site where the wall must be made.
    [0010]
    10. Manufacturing process according to any one of the preceding claims, characterized in that after the sixth step of disassembling the form, is sprayed on any free surface of the material a curing product to oppose the evaporation of the water contained in the material.
    [0011]
    11. Manufacturing method according to any one of the preceding claims, characterized in that it comprises at least one series of series of steps, each of which comprises at least the first, third and fourth stages, to allow to mount the wall by fills and successively placing the material (22) in formwork elements (12, 18) stackable on each other.
    [0012]
    12. The manufacturing method according to any one of the preceding claims, characterized in that it comprises at least one succession of series of steps each of which comprises at least a third and a fourth step, to allow to mount the wall by fills. and successively placing the material (22) in monoblock formwork elements (12, 18).
    [0013]
    13. The manufacturing method according to one of the preceding claims, characterized in that it comprises a third additional step, interposed between the first and third steps, during which is introduced into the element (12, 18) formwork (10) at least one load reinforcement element of the wall, in particular a welded mesh reinforcement.
    [0014]
    14. Manufacturing process according to any one of the preceding claims, characterized in that the fourth step of placing the material is carried out at least with the aid of a vibrating device, in particular a device for vibrating vibration. the formwork element and / or at least one vibrating needle immersed in the mixture.
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    同族专利:
    公开号 | 公开日
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    EP2431545A2|2010-09-17|2012-03-21|Cematerre|Process for erecting at least one verticalwall made from earth|WO2020141285A1|2018-12-31|2020-07-09|Materr'up|New formulation for a low-carbon construction binder, method of production, and construction materials|
    FR3092576A1|2018-12-31|2020-08-14|Mathieu Neuville|New formulation for low carbon building binder, preparation process and building materials|
    WO2020178538A1|2019-03-06|2020-09-10|Materr'up|Method for selecting the composition of a construction material comprising an excavated clay soil, method and system for preparing such a construction material|
    WO2021180931A1|2020-03-12|2021-09-16|Saint-Gobain Weber France|Manufacture of a wall by dry spraying of a composition comprising unbaked earth|
    法律状态:
    2015-01-21| PLFP| Fee payment|Year of fee payment: 2 |
    2016-01-27| PLFP| Fee payment|Year of fee payment: 3 |
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    优先权:
    申请号 | 申请日 | 专利标题
    FR1400093A|FR3016376B1|2014-01-16|2014-01-16|NEW IMPROVEMENT TO A PROCESS FOR MANUFACTURING AT LEAST ONE VERTICAL EARTH WALL|FR1400093A| FR3016376B1|2014-01-16|2014-01-16|NEW IMPROVEMENT TO A PROCESS FOR MANUFACTURING AT LEAST ONE VERTICAL EARTH WALL|
    EP15151508.7A| EP2896604A1|2014-01-16|2015-01-16|Novel improvement to a method for manufacturing at least one earth-based vertical wall|
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