• 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:
    Cladding (1) for formwork panels (13), comprising a laminar body formed by the following layers joined by lamination: - a base (2) of preimpregnated cellulose sheet in hardened resins, - an inner layer (3) of resin, arranged on the back of the base (2) of preimpregnated cellulose, - an outer layer (4) of resin, arranged next to the inner layer of resin, - a reinforcing mesh (5) disposed between the inner layer (3) of resin and the outer layer (4) of resin, and - a continuous outer covering film (6) of the prepreg cellulose base (2). The invention also comprises a method of obtaining the coating (1). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2738915A1
    申请号:ES201830779
    申请日:2018-07-27
    公开日:2020-01-27
    发明作者:Salinas Jose Manuel Valero
    申请人:Salinas Jose Manuel Valero；
    IPC主号:
    专利说明:

    [0001]
    [0002]
    [0003]
    [0004]
    [0005] The present invention relates to a coating for the formwork panels, and to a specific process for obtaining said coating.
    [0006]
    [0007]
    [0008]
    [0009] The architectural smooth concrete is a building material that serves as both a structural and enclosure element, and its degree of fundamental quality depends on a good formwork, so that it is visually consistent with the needs of the different projects.
    [0010]
    [0011] Currently to achieve smooth finishes in architectural concrete, it is required the use of formwork panels formed by a metal structure and boards (which is the formwork surface) new, as a support. This configuration does not provide perfect finishes after the second laying, when there is a deterioration of the surface of the board by the use of chemical elements such as release agents or other cleaning circumstances etc ... This requires replacing the boards with new ones to guarantee a Good surface finish of the new concrete puttings, which entails a high cost.
    [0012]
    [0013] The manufacturers of formwork panels have the need to protect the board that will define the final smooth quality of the concrete. For this they use wooden, metallic and plastic linings, with the detriment that the nature of these materials and their costs entails for their implementation; for example: different formats (small / large), and large thicknesses, with the additional disadvantage that they have no dimensional stability despite these high costs.
    [0014]
    [0015] These solutions, therefore, even being the only existing alternative, are very complex and economically expensive, to which we must add certain dimensional design limitations.
    [0016] They are also affected by the use of chemical elements such as release agents, or require auxiliary means (cranes, etc.), due to their high weight. Moreover, they do not have the flexibility to form curves or circular shapes, and in some cases - such as wood sheets - when fixed, they cause moisture stains on the concrete because they are affected by the humidity of the concrete.
    [0017]
    [0018] Therefore none of the possible solutions discussed above is valid for panel manufacturers. This implies the need for very frequent replacement due to deterioration of the panels in the formwork panels, with the aggravating factor that they are only replaced at the factory, so that the costs of the board must be added the replacement costs and new use.
    [0019]
    [0020]
    [0021]
    [0022] The cladding for formwork panels of the invention fully and satisfactorily solves the problem set forth above.
    [0023]
    [0024] According to the invention, the coating comprises a laminar body formed by the following layers joined by lamination:
    [0025] -a pre-impregnated cellulose laminar base in hardened resins to configure a barrier that confines successive layers of resins on its reverse, preventing uneven resin content spaces from being generated in the following steps. This option has been found to be the best realizable after the tests carried out, since if it were plasticized, the resin would tend to peel off easily due to lack of adhesion, which would cause a non-homogeneous product,
    [0026] -a resin inner layer, arranged on the back of the prepreg pulp base in hardened resins,
    [0027] -a resin outer layer, arranged next to the inner resin layer,
    [0028] -a reinforcing mesh disposed between the inner resin layer and the outer resin layer, and -a continuous outer coating film of the preimpregnated cellulose base to achieve an anti-scratch and waterproof behavior by means of this surface plastic protection.
    [0029]
    [0030] This covering is placed covering the formwork panel by its containment face, being able to even seal the joints between adjacent formwork panel coverings with tape of small thickness, protecting moisture leaks and achieving a smooth and continuous finish and without markings of concrete by moisture.
    [0031]
    [0032] The process for obtaining the coating of the invention, in its most basic configuration, comprises the following steps:
    [0033] - have a sheet of pre-impregnated cellulose on hardened resins on a work surface of specific dimensions depending on the size of the coating to be obtained,
    [0034] -apply an inner layer of resin on the basis of prepreg cellulose,
    [0035] -apply a reinforcing mesh on the inner layer of resin,
    [0036] -apply an outer layer of resin on the reinforcing mesh in sufficient proportion to fuse with the inner layer of resin,
    [0037] - Let the resin dry from the inner layer and outer layer,
    [0038] -apply a continuous outer coating film on the prepreg cellulose base in hardened resins.
    [0039]
    [0040] With this configuration and procedure, all these elements are fused together, creating a homogeneous body, with the result of a perfect surface finish of the concrete. In this way, a coating with very good physiomechanical characteristics is obtained, such as:
    [0041] -Approximate minimum thickness of 1.2 mm.
    [0042] -Light weight, approximately 1.4 kg / m2.
    [0043] -Great tensile strength in mechanical fixation.
    [0044] - Zero dimensional deformity in both thickness and length.
    [0045] -Reusable without the need for release agents; It allows 3/5 posts, depending on its handling, easily washable with water.
    [0046] -Big dimensional formats.
    [0047] - Flexural tensile strength; With this we avoid tears and tears due to concrete pressure.
    [0048] -Water-repellent behavior, does not absorb water or affect moisture, preventing the appearance of spots.
    [0049] -Flexibility: adapts to curved or semi-curved positions, achieving a great balance of flexibility - rigidity.
    [0050] - Anti-scratch surface, important when in contact with metal rods.
    [0051] -Recycling; Due to its ease of transport, without large volumes, it has its recycling at the return to the factory, where a chain for element separation, crushing and subsequent use in other products will be available, for example: glass fibers for reinforcement of concrete or thermoplastics
    [0052]
    [0053] In addition you get:
    [0054] -Perfect smooth surface finish of concrete, with performance not resolved by any existing means,
    [0055] -Elimination of the need for the use of release agents.
    [0056]
    [0057]
    [0058]
    [0059] Figure 1 shows a view of a formwork panel equipped with the coating of the invention
    [0060]
    [0061] Figure 2 shows a delaminated view of the different layers of the coating of the invention
    [0062]
    [0063] Figure 3 shows a section of the coating of the invention.
    [0064]
    [0065] Figure 4 shows a view through a joint between two formwork panels, where it can be seen how the joint between adjacent coverings can be sealed with a tape.
    [0066]
    [0067] Figure 5 shows a detailed section of the preimpregnated cellulose sheet base in hardened resins.
    [0068]
    [0069] Figure 6 shows an enlarged view of the mesh in detail.
    [0070]
    [0071]
    [0072]
    [0073] The coating (1) for formwork panels of the invention comprises a laminar body configured by the following layers joined by lamination (see figs 2 and 3):
    [0074] -a base (2) of preimpregnated cellulose sheet in hardened resins,
    [0075] - an inner layer (3) of resin, arranged on the back of the base (2) of preimpregnated cellulose,
    [0076] -a outer layer (4) of resin, arranged next to the inner layer (3) of resin, -a reinforcing mesh (5) arranged between the inner layer (3) of resin and the outer layer (4) of resin , Y
    [0077] -a continuous outer coating film (6) of the pre-impregnated cellulose base (2).
    [0078]
    [0079] Ideally, the outer coating film (6) comprises an adhesive (60) on its inner face for bonding to the pre-impregnated cellulose base (2) without additional applications. Said adhesive (60) preferably comprises a heat adhesive heat adhesive.
    [0080]
    [0081] In addition, it is envisaged that preferably the outer covering film (6) is made of one or more of the following materials: polyethylene, polyester PET, or vinyl. For example PET polyethylene that would be an economic realization.
    [0082]
    [0083] As for the pre-impregnated cellulose sheet base (2), it preferably has a resin weight between 100 and 200 gr / m2, since it would be a minimum and therefore economical range to achieve the desired performance, with a resin weight of 150 gr / m2 as a value in which the best results have been found, with a total grammage of the base, including cellulose, of 280 gr / m2.
    [0084]
    [0085] On the other hand, the reinforcement mesh (5) is ideally materialized in fiberglass due to its good performance in resin composites. Said reinforcing mesh (5) is ideally materialized in triaxial fiberglass to better work in tension in all directions of the surface, being configured for this purpose most preferably based on (see fig. 6) a weft (50) and two warps (51) crossed with each other and not interwoven (overlapping), joined by a seam (52), the warps (51) being more preferably cross-linked at an angle of 90 degrees, and crossed with the weft (50 ) An angle of 45 degrees looking for this best tensile strength in all directions.
    [0086]
    [0087] On the other hand, the inner layer (3) of resin and the outer layer (4) of resin have a grammage resin set between 400 and 700 gr / m2, with an ideal set value in tests of 600 gr / m2, which in case the base (2) has a resin weight of 200 gr / m2 implies a total weight of resins of about 800 gr / m2, which gives an idea of the lightness of the product which facilitates its handling.
    [0088]
    [0089] Preferred resins would be polyester resin (more economical), epoxy resin, PET resin or vinyl ester resin. These resins have low drying times, air dry and are economical, especially polyester.
    [0090]
    [0091] It is also provided that the finished coating (1) comprises removable joining means to the formwork board (10) (see fig. 1). Said removable joining means to the formwork board (10) ideally comprise screws (11), which avoids the use of adhesives that would hinder the replacement of the coating. It also allows the lining (1) to reach the edge (12) of the panel (13) and / or its frame (14) (see fig 5), being able to overlap the joints with a simple tape (15), avoiding the defect that for example, they have the phenolic formwork boards, which must necessarily have the edges protected as they absorb moisture and therefore have separations that are then marked on the finished concrete construction element.
    [0092]
    [0093] As for the process of the invention for obtaining the formwork coating (1) of the invention, it comprises:
    [0094] - dispose on a work surface, not shown, of specific dimensions depending on the size of the coating to be obtained, a base (2) of preimpregnated cellulose in hardened resins,
    [0095] -apply an inner layer (3) of resin on the base (2) of preimpregnated cellulose, -apply a reinforcing mesh (5) on the inner layer (3) of resin,
    [0096] -apply an outer layer (4) of resin on the reinforcing mesh (5) in sufficient proportion to fuse with the inner layer (3) of resin,
    [0097] - Let the resin dry (24 hours for example) of the inner layer (3) and outer layer (4), - Apply a continuous outer coating film (6) on the base (2) pre-impregnated cellulose in hardened resins.
    [0098]
    [0099] The preimpregnated cellulose laminate base (2) in hardened resins is preferably obtained by applying a prepreg layer (21) of resin to a cellulose layer (20) (see fig. 5), allowing to dry (an equal or longer time) to 24 hours per example). This allows to create a consistent and impermeable body that configures a barrier to avoid suppuration through the cellulose of the layers (3, 4) of resins that are applied next.
    [0100]
    [0101] The reinforcing mesh (5) ideally comprises triaxial fiberglass mesh.
    [0102]
    [0103] In addition, the application of the continuous outer coating film (6) on the base (2) pre-impregnated cellulose in hardened resins is preferably carried out by means of plasticized tunnel passage, not shown, which facilitates the continuous application.
    [0104]
    [0105] Describing sufficiently the nature of the invention, as well as the manner in which it is carried out in practice, it should be noted that the provisions indicated above and represented in the attached drawings are subject to modifications in detail as long as they do not alter the fundamental principle.
    权利要求:
    Claims (19)
    [1]
    1.-Coating (1) for formwork panels (13) characterized in that it comprises a laminar body formed by the following layers joined by lamination:
    -a base (2) of preimpregnated cellulose sheet in hardened resins,
    - an inner layer (3) of resin, arranged on the back of the base (2) of preimpregnated cellulose,
    -a outer layer (4) of resin, arranged next to the inner layer (3) of resin, -a reinforcing mesh (5) arranged between the inner layer (3) of resin and the outer layer (4) of resin , Y
    -a continuous outer coating film (6) of the pre-impregnated cellulose base (2).
    [2]
    2.-Coating (1) for formwork panels (13) according to claim 1, characterized in that the outer covering film (6) comprises an adhesive (60) on its inner face for bonding to the base (2) of prepreg.
    [3]
    3.-Coating (1) for formwork panels (13) according to claim 2 characterized in that the adhesive (60) comprises a thermoadhesive.
    [4]
    4.-Coating (1) for formwork panels (13) according to any of the preceding claims characterized in that the outer covering film (6) is made of material selected from one or more of the following:
    polyethylene,
    PET,
    polyester,
    Vinyl
    [5]
    5.-Coating (1) for formwork panels (13) according to any of the preceding claims, characterized in that the pre-impregnated cellulose sheet base (2) has a resin weight between 100 and 200 gr / m2.
    [6]
    6.-Coating (1) for formwork panels (13) according to claim 5 characterized in that the pre-impregnated cellulose sheet base (2) has a resin weight of 150 gr / m2
    [7]
    7.-Coating (1) for formwork panels (13) according to any of the preceding claims characterized in that the reinforcing mesh (5) is materialized in fiberglass.
    [8]
    8.-Coating (1) for formwork panels (13) according to claim 7 characterized in that the reinforcing mesh (5) is materialized in triaxial configuration fiberglass.
    [9]
    9.-Coating (1) for formwork panels (13) according to claim 8, characterized in that the reinforcing mesh (5) is made of triaxial fiberglass with a weft (50) and two warps (51) crossed between yes and not interwoven, joined by a seam (52).
    [10]
    10.-Coating (1) for formwork panels (13) according to claim 9, characterized in that the warps (51) are crossed at an angle of 90 degrees, and crossed with the weft (50) at an angle of 45 degrees.
    [11]
    11.-Coating (1) for formwork panels (13) according to any of the preceding claims characterized in that the inner layer (3) of resin and the outer layer (4) of resin have a joint weight of resin between 400 and 700 gr / m2
    [12]
    12.-Coating (1) for formwork panels (13) according to claim 11 characterized in that the inner layer (3) of resin and the outer layer (4) of resin have a joint weight of 600 gr / m2.
    [13]
    13.-Coating (1) for formwork panels (13) according to any of the preceding claims characterized in that the resins are selected from:
    polyester resin,
    epoxy resin,
    PET resin
    vinyl ester resin
    [14]
    14.-Coating (1) for formwork panels (13) according to any of the preceding claims characterized in that it comprises removable joining means to the formwork board (10).
    [15]
    15.-Coating (1) for formwork panels (13) according to claim 14 characterized in that the removable joining means to the formwork board (10) comprise screws (11).
    [16]
    16. -Procedure for obtaining a coating (1) for formwork panels (13) characterized in that it comprises:
    -available on a work surface of specific dimensions depending on the size of the coating to be obtained, a base (2) of pre-impregnated cellulose sheet in hardened resins,
    -apply an inner layer (3) of resin on the base (2) of preimpregnated cellulose, -apply a reinforcing mesh (5) on the inner layer (3) of resin,
    -apply an outer layer (4) of resin on the reinforcing mesh (5) in sufficient proportion to fuse with the inner layer (3) of resin,
    - let the resin dry the inner layer (3) and outer layer (4),
    -apply a continuous outer coating film (6) on the base (2) pre-impregnated cellulose in hardened resins.
    [17]
    17. -Procedure for obtaining a coating (1) for formwork panels (13) according to claim 16, characterized in that the base (2) of preimpregnated cellulose in hardened resins is obtained by applying a prepreg layer (21) of resin to a layer of cellulose (20), allowing to dry.
    [18]
    18. -Procedure for obtaining a coating (1) for formwork panels (13) according to claim 17 or 18, characterized in that the reinforcing mesh (5) comprises triaxial fiberglass mesh.
    [19]
    19. -Procedure for obtaining a coating (1) for formwork panels (13) according to any of claims 16 to 18 characterized in that the application of the outer coating film (6) continues on the base (2) pre-impregnated cellulose in resins Hardened is done by plastic tunnel passage.
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    同族专利:
    公开号 | 公开日
    ES2738915B2|2020-10-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2071050A5|1969-12-16|1971-09-17|Assie Jacqueline|Coating concrete moulds with resin - esp pvc for smoother surfaces|
    FR2636361A1|1988-09-09|1990-03-16|Sari|Method for producing a formwork; material and anchoring member for the implementation of this method|
    JPH07180348A|1993-12-22|1995-07-18|Shiyotsukubeton Japan:Kk|Manufacture of pc product by instant demolding|
    WO1996032554A1|1995-04-12|1996-10-17|Providence Industries, L.L.C.|Reusable concrete form panel sheeting|
    JP2007085120A|2005-09-26|2007-04-05|Sliontec Corp|Concrete form water permeable member fixing sheet and water permeable member fixing method using this sheet|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201830779A|ES2738915B2|2018-07-27|2018-07-27|COATING FOR FORMWORK PANELS AND PROCEDURE FOR OBTAINING SUCH COATING|ES201830779A| ES2738915B2|2018-07-27|2018-07-27|COATING FOR FORMWORK PANELS AND PROCEDURE FOR OBTAINING SUCH COATING|
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