JP2019070288A - Construction material and form for placing concrete - Google Patents

Abstract

To provide a construction material capable of increasing usability, and a form for placing concrete.SOLUTION: A single cylinder 40 comprises a body 41. The body 41 comprises an intermediate layer 42, and at least one of an inner layer 43 that covers at least a part of an inner surface of the intermediate layer 42 and an outer layer 44 that covers at least a part of an outer surface of the intermediate layer 42. The intermediate layer 42 includes a carbon fiber. The inner layer 43 and the outer layer 44 include a basalt fiber or high melting polyester. The intermediate layer 42 includes 80 wt.% of the carbon fiber relative to a total weight of the body 41. The inner layer 43 includes 15 wt.% of the basalt fiber relative to the total weight of the body 41. The outer layer 44 includes 5 wt.% of the high melting polyester relative to the total weight of the body 41.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a construction material and a form for placing concrete.

  BACKGROUND ART Conventionally, a mold material constituting a mold used when casting a wall or the like of a building has become widespread (see, for example, Patent Document 1). This formwork material is a single pipe pipe made of iron, and is formed with a weight of about 10 kg (3.5 m) per one. Moreover, the formwork material made into the single pipe pipe made from FRP is also prevailing, This formwork material is formed by about 1/4 the weight of the single pipe pipe made from iron.

JP, 2017-002469, A

  By the way, in recent years, the aging of construction workers has become a problem. For example, the proportion of construction workers aged 55 and over is about 30% in the whole construction industry and about 35% in formwork carpenters. In particular, for formwork carpenters, material transportation has been the main task for several years after entering the job, and the fact that the number of workers leaving is heavy due to the severeness of the work is accelerating the aging of the population. Therefore, there is an urgent need to improve the working environment of construction workers such as formwork carpenters and to create an environment that is easy to work with not only elderly people but also young people and women. Therefore, it has been desired to improve the usability of the building material by reducing the weight of the building material such as the above-mentioned form material.

  This invention is made in view of the above, Comprising: It aims at providing the construction material which can improve usability, and the formwork for concrete placement.

  In order to solve the problems described above and to achieve the object, the building material according to claim 1 is a building material, comprising a main body, said main body comprising at least one of an intermediate layer and an inner surface of said intermediate layer. And at least one of an outer layer covering at least a part of the outer surface of the intermediate layer, wherein the intermediate layer includes carbon fibers, and the inner layer and the outer layer are basalt fibers or high. Includes molten polyester.

  The building material according to claim 2 is the building material according to claim 1, wherein the main body comprises the inner layer and the outer layer, the inner layer comprises basalt fibers, and the outer layer is high. Includes molten polyester.

  The building material according to claim 3 is the building material according to claim 2, wherein the intermediate layer contains carbon fiber in an amount of 80% by weight of the total weight of the main body, and the inner layer contains basalt fiber in the main body. The outer layer contains 15% by weight of the total weight, and the high melting polyester contains 5% by weight of the total weight of the main body.

  The building material according to claim 4 is the building material according to any one of claims 1 to 3, wherein the main body has a hollow cylindrical shape or a hollow rectangular cylindrical shape.

  The building material according to claim 5 is the building material according to any one of claims 1 to 4, wherein the total weight of the main body is 625 g / m or less.

  In the building material according to any one of claims 1 to 5, the building material according to claim 6 has a Young's modulus of 105 Gpa or more.

  The building material according to claim 7 is the building material according to any one of claims 1 to 6, wherein the main body is formed in a longitudinal shape and covers at least a part of a longitudinal end face of the main body. It has a cap.

  The building material according to claim 8 is the building material according to claim 7, wherein a hole is provided in the vicinity of the end face in the longitudinal direction of the main body, and the cap is locked in the hole.

  The formwork for placing concrete according to claim 9 is a formwork for placing concrete, which is configured using the building material according to any one of claims 1 to 8 as a formwork material.

  According to the building material of claim 1 and the concrete casting form of claim 9, the main body includes at least one of the intermediate layer and the inner layer or the outer layer, and the intermediate layer is carbon. Since it contains fibers, and the inner layer and the outer layer contain basalt fibers or high-melting polyester, they can be formed lighter than FRP single-pipe pipes while having impact resistance and compression resistance, and their usability ( Specifically, the transportability, the assemblability, etc. can be improved.

  According to the building material of claim 2, the body comprises an inner layer and an outer layer, the inner layer comprises basalt fibers and the outer layer comprises a high melting polyester, so that the carbon fiber is made of high melting polyester. It is possible to reinforce the carbon fiber with basalt fiber while protecting it and to further improve the impact resistance and the compression resistance.

  According to the building material of claim 3, the middle layer comprises carbon fiber in an amount of 80% by weight of the total weight of the body, the inner layer comprises basalt fibers in an amount of 15% by weight of the total weight of the body, and the outer layer comprises Since high-melting polyester is contained at 5% by weight of the total weight of the main body, carbon fibers can be set to 80% by weight of the total weight of the main body, and cost reduction can be achieved.

  According to the building material of claim 4, since the main body is hollow cylindrical or hollow rectangular cylindrical, building material can be formed lighter than when the main body is solid, and weight reduction can be achieved. it can.

  According to the building material of claim 5, since the total weight of the main body is 625 g / m or less, the total weight of the main body is more than half the total weight (for example, 1380 g / m) of FRP single pipe pipe It can be made light (and can be formed with a weight of about 1/8 that of an iron single pipe pipe), and the usability can be further improved.

  According to the building material described in claim 6, since the Young's modulus is 105 Gpa or more, the Young's modulus can be 105 Gpa or more, and the rigidity necessary for the building material can be secured.

  According to the building material of the seventh aspect, since the main body includes the cap covering at least a part of the longitudinal end face of the main body, the longitudinal end of the main body can be protected to improve the durability. it can.

  According to the construction material of the eighth aspect, the hole is provided in the vicinity of the end face in the longitudinal direction of the main body and the cap is locked to the hole, so that the cap can be locked to the hole of the main body, and the cap is the main body It can control that it deviates from.

FIG. 1 is a front view conceptually showing a mold according to an embodiment of the present invention. It is a figure which shows a single pipe, (a) front view, (b) is AA arrow sectional drawing of (a), (c) is sectional drawing of the right end part periphery of (a). It is a figure which shows a cap, (a) is a front view, (b) is a BB arrow sectional view of (a). It is a figure which shows the modification of a cap, (a) is a front view, (b) is CC arrow sectional drawing of (a). It is a figure which shows the modification of a cap, Comprising: It is sectional drawing which shows the area | region corresponding to FIG.2 (c). It is a figure which shows the modification of a cap, Comprising: It is sectional drawing which shows the area | region corresponding to FIG.2 (c). It is a figure which shows the modification of a cap, Comprising: It is sectional drawing which shows the area | region corresponding to FIG.2 (c). It is a figure which shows the modification of a cap, Comprising: It is sectional drawing which shows the area | region corresponding to FIG.2 (c). It is a figure which shows the modification of a cap, Comprising: It is sectional drawing which shows the area | region corresponding to FIG.2 (c). It is a figure which shows the state in which the cap and the attachment member are connected. It is a figure which shows the state in which the cap and the attachment member are connected.

  Hereinafter, with reference to the accompanying drawings, embodiments of a building material according to the present invention and a form for placing concrete will be described in detail. First, the basic concept of the [I] embodiment will be described, then the specific contents of the [II] embodiment will be described, and finally, modifications to the [III] embodiment will be described. However, the present invention is not limited by the embodiments.

[I] Basic Concept of the Embodiment First, the basic concept of the embodiment will be described. The embodiment relates generally to a formwork for placing concrete, which is configured using a building material as a formwork material. Here, "building material" means a material used to construct a building, and is, for example, a concept including a formwork material, a scaffolding material, and a support material of a temporary enclosure surrounding the periphery of a site. Moreover, a "mold material" means the frame material which comprises a mold. Moreover, a "form" means the temporary frame for driving in liquid materials, such as concrete, in a predetermined | prescribed shape.

[II] Specific Content of the Embodiment Next, the specific content of the embodiment will be described.

(Constitution)
First, the configuration of a mold for casting concrete (hereinafter, referred to as "mold") according to the embodiment will be described. FIG. 1 is a front view conceptually showing a mold according to the embodiment of the present invention. In the following description, the X direction in FIG. 1 is the left and right direction of the mold (-X direction is the left direction of the mold, + X direction is the right direction of the mold), and the Y direction in FIG. Front and back direction (the + Y direction is the front of the mold (the outside of the mold), the -Y is the back of the mold (the inside of the mold)), and the Z direction in Figure 1 is the top and bottom of the mold The direction (the + Z direction is referred to as the upper direction of the mold, the −Z direction is the lower direction of the mold).

  The formwork 1 is a formwork for placing concrete as described above, and is provided on the installation surface S as shown in FIG. 1 and is provided on the base plate 10, the separator 20, the crosspiece 30, and the single pipe 40. It is configured to be equipped.

(Composition-siding board)
First, the configuration of the weir 10 will be described. The weir plate 10 is a member for blocking the concrete (not shown) poured into the mold 1 so as not to flow out of the mold 1. The weir 10 is, for example, a rectangular plate-like body made of wood (as an example, plywood or the like) or the like, and a plurality of the weirs 10 are erected in the outer peripheral portion of the mold 1 without a gap.

(Configuration-Crossbar)
Next, the configuration of the crosspiece 30 will be described. The crosspiece 30 is a member for reinforcing the weir 10. The crosspiece 30 is, for example, a long rod-like body configured using wood or the like, and specifically, the longitudinal direction of the crosspiece 30 is substantially the same as the vertical length of the weir plate 10 It is formed. Further, as shown in FIG. 1, the crosspiece 30 is provided on the side surface outside the form 1 among the side faces of the weir plate 10 so that the longitudinal direction of the crosspiece 30 is substantially along the vertical direction. A plurality of the filters are arranged in parallel along the direction, and are connected to the base plate 10 by a fixing tool or the like.

(Configuration-Separator)
The separator 20 is a member for holding an interval between the facing baffles 10 among the plurality of backings 10. The separator 20 is configured, for example, using a known separator for a form, and as shown in FIG. 1, a plurality of separators are provided for the facing facing plates 10, and a separator main body (not shown) and holding are provided. A unit 21 is provided.

  Here, the separator main body is a basic structure of the separator 20, and is formed of, for example, a metal rod, and is inserted into the insertion holes provided in each of the opposing facing plates 10, The inserted state is held by a cup (not shown). Moreover, the holding part 21 is a holding means to hold | maintain the space | interval of the said facing facing board 10 comrades. The holding portion 21 is configured using, for example, a known fastener (for example, form tie (registered trademark) or the like), and as shown in FIG. 1, provided at each of both end portions in the longitudinal direction of the separator main body. And is fastened to each of the opposed facing plates 10 via a single pipe 40.

(Composition-single tube)
Next, the configuration of the single pipe 40 will be described. 2A and 2B are diagrams showing a single pipe 40, wherein FIG. 2A is a front view, FIG. 2B is a sectional view taken along the line A-A in FIG. 2A, and FIG. is there. The single pipe 40 is a member for effectively holding the opposed sealing plate 10 tightly connected by the separator 20. As shown in FIG. 1, a plurality of single pipes 40 are provided between the weir 10 and the holding portion 21 of the separator 20, and includes a main body 41.

(Composition-single tube-main body)
The main body 41 is a basic structure of the single pipe 40. The main body 41 is formed of an elongated body, and as shown in FIG. 1, the longitudinal direction of the main body 41 is substantially horizontal (in FIG. 1, the longitudinal direction of the main body 41 is It is provided substantially along the left and right direction).

  Further, although the specific shape and size of the main body 41 are arbitrary, in the embodiment, first, the main body 41 is formed in a hollow cylindrical shape in which only one end face is opened. Further, the outer diameter and the inner diameter of the main body 41 are set so as to obtain desired strength, and as an example, the outer diameter of the main body 41 is set to about 50 mm and the outer diameter of the main body 41 is 45 mm The degree is set. Further, the length in the left-right direction of the main body 41 is set to be substantially the same as the length in the left-right direction of the base plate 10.

  Further, as to the specific configuration of the main body 41, in the embodiment, as shown in FIG. 2, the main body 41 includes the intermediate layer 42, the inner layer 43, and the outer layer 44. Among these, the middle layer 42 is a layer positioned in the middle among the layers constituting the single tube 40, and is configured to include carbon fibers (as one example, PAN-based carbon fibers or pitch-based carbon fibers). Further, the inner layer 43 is a layer covering at least a part of the inner surface of the intermediate layer 42 among the layers constituting the single pipe 40 (in FIG. 2, the layer positioned on the innermost side and covering the entire inner surface of the intermediate layer 42) Layer) and is composed of basalt fibers. Further, the outer layer 44 is a layer covering at least a part of the outer surface of the intermediate layer 42 among the layers constituting the single tube 40 (in FIG. 2, it is the outermost layer and covers the entire outer surface of the intermediate layer 42). Layer) and comprises high melting polyester.

  With such a configuration, while having impact resistance and compression resistance, it can be formed to be lighter in weight than a single pipe pipe made of FRP, and the usability (specifically, transportability, assembly performance, etc.) is improved. be able to. In particular, since the inner layer 43 contains basolate fibers and the outer layer 44 contains a high melting polyester, it is possible to reinforce the carbon fibers with bashal fibers while protecting the carbon fibers with high melting polyester, impact resistance and compression resistance The quality can be further improved. Moreover, since it is formed in the hollow cylindrical shape of the main body 41, compared with the case where the main body 41 is solid shape, the single pipe | tube 40 can be formed lightly and weight reduction can be achieved.

(About the details of the composition-single tube-single tube)
Moreover, about the detail of a structure of the single pipe | tube 40, it is as follows.

  That is, first, the intermediate layer 42 contains carbon fiber by 80% by weight of the total weight of the main body 41, the inner layer 43 by Basalt fiber by 15% by weight of the total weight of the main body 41, and the outer layer 44 by high melting polyester main body 41 The main body 41 of the single pipe 40 is formed so as to contain 5% by weight of the total weight. As a result, the carbon fiber can be set to 80% by weight of the total weight of the main body 41, and the cost can be reduced.

  The single tube 40 is formed so that the total weight of the main body 41 is 625 g / m or less and the Young's modulus is 105 Gpa or more. As a result, the total weight of the main body 41 can be made smaller than half of the total weight (for example, 1380 g / m) of the FRP single pipe pipe (and the weight is about 1/8 that of the iron single pipe pipe). It can form, and usability can be improved further. Further, the Young's modulus can be 105 Gpa or more, and the rigidity required for the single pipe 40 can be secured.

(Configuration-Single tube-Other configuration)
Returning to FIG. 2, in addition to this, the single pipe 40 may be provided with an additional structure or function. FIG. 3 is a view showing a cap 50 described later, in which (a) is a front view, and (b) is a cross-sectional view taken along the line B-B in (a). Specifically, in the embodiment, as shown in FIG. 2 and FIG. 3, the cap 50 is provided on the main body 41 of the single pipe 40.

(Configuration-Single tube-Other configuration-Cap)
The cap 50 is a protection means for protecting the main body 41. As shown in FIG. 2 and FIG. 3, the cap 50 is formed in a hollow cylindrical shape made of resin in which only one end face is opened, and a part of the cap 50 (specifically, a part of the cap 50 Among them, a portion other than the end 51 on the closing side) is inserted into the main body 41.

  Further, although the specific configuration of the cap 50 is arbitrary, in the embodiment, at least a part of the end face in the longitudinal direction of the main body 41 is covered by the cap 50, specifically, As shown in FIG. 2 and FIG. 3, the end is formed so that the entire end face in the longitudinal direction of the main body 41 is covered by the end 51 on the closing side of the cap 50. Further, the side portion 52 of the cap 50 is formed in a step-like shape, and specifically, the outer diameter of the projecting portion of the side portion 52 of the cap 50 is set larger than the inner diameter of the cap 50 Of the side portions 52 of 50, the outer diameter of the portion other than the projecting portion is set to be slightly smaller than the inner diameter of the cap 50.

  With such a configuration, the longitudinal end of the main body 41 can be protected, and the durability can be improved. Moreover, since the side part 52 of the cap 50 is formed in the said step shape, the cap 50 can be press-fit with respect to the main body 41, and it can suppress that the cap 50 remove | deviates from the main body 41. Note that, for example, by applying an adhesive to the side portion 52 of the cap 50, the detachment of the cap 50 from the main body 41 may be further suppressed.

  With the above-described configuration of the mold 1, while having impact resistance and compression resistance, it can be formed lighter than the single tube pipe made of FRP instead of the single tube 40, and the usability is improved. It can be done.

(About the action of configuration-formwork)
The operation of the mold 1 configured as described above will be described.

  That is, for example, when the assembling work of the form 1 and the disassembling work of the form 1 are performed, as described above, the single pipe 40 is lighter than the single pipe made of FRP. Since the worker easily transports the single pipe 40 and can easily handle it, the assembling work of the form 1 and the disassembling work of the form 1 can be performed easily and quickly.

  In addition, when concrete placing work and curing of concrete are performed, as described above, the middle layer 42 of the single pipe 40 contains carbon fiber, and the inner layer 43 of the single pipe 40 contains bassalt fiber, Since the outer layer 44 of the single tube 40 contains high melting polyester, it is possible to reinforce the carbon fibers with basalt fibers while protecting the carbon fibers with high melting polyester, and the impact resistance and compression resistance required for the mold 1 As a result, it is possible to maintain the function of the form 1 while concrete placement work and concrete curing are being performed.

(Configuration-Other configuration)
In addition to this, the cap 50 of the single tube 40 can be configured in any structure.

  Specifically, although the embodiment has been described that the cap 50 is simply inserted into the inside of the main body 41, the present invention is not limited to this. For example, a hole may be provided in the vicinity of the end face in the longitudinal direction of the main body 41 (as an example, the side portion of the side portion of the main body 41) and the cap 50 may be locked in the hole. With such a configuration, the cap 50 can be locked in the hole portion of the main body 41, and the cap 50 can be prevented from being detached from the main body 41.

  Moreover, although embodiment demonstrated that parts other than the edge part 51 by the side of closing among the parts of the cap 50 were inserted in the inside of the main body 41, it is not restricted to this. FIG. 4 is a view showing a modified example of the cap 50, where (a) is a front view, and (b) is a cross-sectional view taken along the line CC of (a). For example, a part of the cap 50 other than the open end 53 may be inserted into the main body 41. In this case, although the size of the cap 50 is arbitrary, for example, as shown in FIG. 4, the outer diameter of the closed end portion 51 of the cap 50 and the vicinity thereof are outside the other portion. The outer diameter of the other portion may be set to be substantially the same as the inner diameter of the main body 41. Further, it is desirable that the area of the contact portion with the main body 41 in the other portion is set larger than the area of the contact portion with the main body 41 in the side portion 52 of the cap 50 of FIG. With such a configuration, the cap 50 can be easily inserted into the inside of the main body 41, and the detachment of the cap 50 from the main body 41 can be further suppressed.

  Moreover, although embodiment demonstrated that a part of cap 50 was inserted in the inside of the main body 41, it is not restricted to this. 5 and 6 are views showing a modified example of the cap 50, and are cross-sectional views showing a region corresponding to FIG. 2 (c). For example, as shown in FIG. 5, the longitudinal end of the main body 41 may be inserted into the cap 50. In this case, the side portion 52 of the cap 50 may be formed substantially flat, and the inner diameter of the side portion 52 of the cap 50 may be set to be substantially the same as the outer diameter of the main body 41. In addition, the end 51 on the closing side of the portion of the cap 50 is formed in a concave shape that is recessed toward the inside of the cap 50, and the depth of this concave portion is set to a depth where a finger can be inserted. May be With such a configuration, since the finger can be inserted into the recess, the single tube 40 can be easily grasped. Alternatively, as shown in FIG. 6, in addition to the components of FIG. 5, at least a part of the closed end 51 may be formed to be deformable. In this case, of the side surfaces of the end 51 on the closing side, a pair of pressing portions 54 capable of pressing the main body 41 is provided on the inner side surface (or an annular pressing portion 54 may be provided) The knob portion 55 may be provided on the outer side surface. With such a configuration, the main body 41 can be held by the pair of pressing portions 54 and the side portions 52 of the cap 50 in a state where the end 51 on the closing side is pressed, so that the cap 50 is prevented from coming off the main body 41 it can. Further, in a state in which the main body 41 is held between the pair of pressing portions 54 and the side portion 52 of the cap 50, the cap 50 can be easily released from the main body 41 because the state can be released by pulling the knob portion 55. Can.

  Moreover, although embodiment demonstrated that the cap 50 was formed in the hollow cylindrical form in which only one end surface was open | released, it is not restricted to this. FIGS. 7-9 is a figure which shows the modification of the cap 50, Comprising: It is sectional drawing which shows the area | region corresponding to FIG.2 (c). 10 and 11 are views showing a state in which the cap 50 and the attachment member 60 described later are connected. For example, as shown in FIG. 7, the cap 50 may be formed in a hollow cylindrical shape in which both end faces are open. In this case, a recess 56 may be provided on one end face of the side portion 52 of the cap 50, and the longitudinal end of the main body 41 may be inserted into the recess 56. In addition, the knob portion 57 may be provided on the inner side surface of the side portion 52 of the cap 50. Such a configuration allows the cap 50 to be easily removed from the main body 41. Alternatively, as shown in FIG. 8, in addition to the components of FIG. 7 (however, the knob portion 57 is omitted), the attachment member 60 of FIG. 10 (for example, separator 20 of FIG. A connection member 70 may be provided for connecting the foam tie (registered trademark) or the like and the cap 50. The connection member 70 is formed of, for example, a metal annular ring, and is provided so as to cover the outer peripheral portion of the cap 50. Further, although the specific configuration of the connection member 70 is arbitrary, for example, as shown in FIG. 8, the inner side surface of the side portion of the connection member 70 can be connected to the cap 50 by the fitting structure, Also, the outer side surface of the side portion of the connection member 70 may be formed so as to be connectable to the attachment member 60 by a screwing structure. Alternatively, as shown in FIG. 9, in addition to the components of FIG. 7 (however, the knob 57 is omitted), the outer side surface of the side portion 52 of the cap 50 can be fitted to the attachment member 60 of FIG. The fitting portion 58 may be provided. Alternatively, as shown in FIG. 11, in addition to the components of FIG. 7, the cap 50 and the attachment member 60 of FIG. 10 may be integrally formed. With these configurations, since the attachment member 60 can be attached to the cap 50, a plurality of single pipes 40 can be connected. In particular, with regard to the cap 50 of FIG. 8, by attaching the connection member 70 according to the type and configuration of the attachment member 60, the attachment member 60 and the single pipe 40 can be connected according to various applications.

(Effect of the embodiment)
Thus, according to the embodiment, the main body 41 includes the intermediate layer 42 and at least one of the inner layer 43 or the outer layer 44, the intermediate layer 42 includes carbon fiber, and the inner layer 43 and the outer layer 44 , Basalt fiber or high melting polyester, so it can be made lighter than FRP single pipe pipe while having impact resistance and compression resistance, and it can be used (specifically, transportability, assemblability) Etc.) can be improved.

  Also, since the body 41 comprises an inner layer 43 and an outer layer 44, the inner layer 43 comprises basalt fibers, and the outer layer 44 comprises a high melting polyester, so the high melting polyester protects the carbon fibers while the basalt is protected. Carbon fibers can be reinforced with fibers, and impact resistance and compression resistance can be further improved.

  Also, the middle layer 42 contains 80% by weight of carbon fibers in the total weight of the main body 41, the inner layer 43 contains 15% by weight of basalt fibers in the total weight of the main body 41, and the outer layer 44 contains high-melting polyester. Since 5% by weight of the total weight of 41 is included, carbon fibers can be set to 80% by weight of the total weight of the main body 41, and cost reduction can be achieved.

  Further, since the main body 41 is hollow cylindrical or hollow rectangular cylindrical, the single pipe 40 can be formed lighter than when the main body 41 is solid, and weight saving can be achieved.

  In addition, since the total weight of the main body 41 is 625 g / m or less, the total weight of the main body 41 can be made smaller than half of the total weight (for example, 1380 g / m) made of FRP single pipe (iron single It can be formed with a weight of about 1/8 compared to a pipe pipe), and the usability can be further improved.

  Further, since the Young's modulus is 105 Gpa or more, the Young's modulus can be 105 Gpa or more, and the rigidity required for the single pipe 40 can be secured.

  Further, since the main body 41 includes the cap 50 covering at least a part of the end surface in the longitudinal direction of the main body 41, the longitudinal end portion of the main body 41 can be protected, and the durability can be improved.

[III] Modifications to the Embodiments The embodiments of the present invention have been described above, but the specific configuration and means of the present invention fall within the technical idea of each invention described in the claims. , Can be arbitrarily modified and improved. Hereinafter, such a modified example will be described.

(About problem to be solved and effect of invention)
First of all, the problems to be solved by the invention and the effects of the invention are not limited to the contents described above, and the present invention solves the problems not described above, and the effects not described above. It may also play, or may only solve some of the listed tasks or only some of the listed effects.

(About shape, number, structure, time series)
With regard to the components illustrated in the embodiments and the drawings, the shape, the numerical value, or the structure or the time-series correlation of a plurality of components may be arbitrarily modified and improved within the scope of the technical idea of the present invention. Can.

(About formwork)
In the above embodiment, although it has been described that the gauze plate 10 and the crosspieces 30 of the form 1 are configured using wood, the present invention is not limited thereto. For example, resin materials (as an example, plastics etc.) or metal materials (metals) As an example, stainless steel or the like may be used.

(About a single pipe)
Although the above-mentioned embodiment explained that main part 41 of single tube 40 was provided with inner layer 43 and outer layer 44, it is not restricted to this. For example, if desired impact resistance and compression resistance can be ensured, either one of the inner layer 43 or the outer layer 44 may be omitted.

  Moreover, although the said embodiment demonstrated that the main body 41 of the single pipe | tube 40 was equipped with the cap 50, it is not restricted to this. For example, the cap 50 may be omitted. Alternatively, instead of the cap 50, a known coating agent (for example, a coating agent containing an anti-fraying agent or the like) is applied to the end face in the longitudinal direction of the main body 41, or a known coating agent is applied to the entire main body It is also possible to apply a so-called backlash) or taping on the longitudinal end face of the main body 41. Alternatively, any two or more of the cap 50, the coating agent, or the taping may be combined.

  Moreover, although the said embodiment demonstrated that the inner layer 43 of the single tube 40 contains basalt fiber, and the outer layer 44 of the single tube 40 contains high melting polyester, it is not restricted to this. For example, the inner layer 43 may comprise high melt polyester and the outer layer 44 may comprise basart fibers. Alternatively, each of the inner layer 43 and the outer layer 44 may comprise basalt fibers and high melt polyester.

  Moreover, although the said embodiment demonstrated that the ratio of the carbon fiber of the intermediate | middle layer 42 of the single tube 40 was 80 weight% of the total weight of the main body 41, it is not restricted to this. For example, if desired impact resistance and compression resistance can be ensured, it may be less than 80% by weight of the total weight.

  Moreover, although the said embodiment demonstrated that the main body 41 of the single tube 40 was a hollow cylindrical shape, it is not restricted to this, for example, may be a hollow square cylinder shape, or solid cylinder shape or inside It may be a real square tube.

  Moreover, although the said embodiment demonstrated that the total weight of the main body 41 of the single tube 40 was 625 g / m or less, it is not restricted to this, For example, the total weight slightly higher than 625 g / m (650 g as an example) / M).

  Moreover, although the said embodiment demonstrated that the Young's modulus of single tube 40 is 105 Gpa or more, it is not restricted to this, For example, Young's modulus (100 Gpa as an example) slightly lower than 105 Gpa may be sufficient.

(Supplementary note)
The building material according to appendix 1, which is a building material, includes a main body, the main body includes an intermediate layer, an inner layer covering at least a portion of the inner surface of the intermediate layer, or at least a portion of the outer surface of the intermediate layer And at least one of a covering outer layer, wherein the middle layer comprises carbon fibers, and the inner layer and the outer layer comprise bascal fibers or high melting polyester.

  The building material according to appendix 2, in the building material according to appendix 1, wherein the body comprises the inner layer and the outer layer, the inner layer comprises basalt fibers, the outer layer comprises high melting polyester .

  The building material according to appendix 3, in the construction material according to appendix 2, wherein the intermediate layer comprises carbon fiber 80% by weight of the total weight of the main body, and the inner layer comprises basalt fiber 15% of the total weight of the main body In weight percent, the outer layer comprises high melt polyester at 5 weight percent of the total weight of the body.

  The building material according to appendix 4 is the building material according to any one of appendixes 1 to 3, wherein the main body is a hollow cylinder or a hollow rectangular cylinder.

  The building material according to appendix 5 is the building material according to any one of appendixes 1 to 4, wherein the total weight of the main body is 625 g / m or less.

  In the building material according to any one of notes 1 to 5, the building material according to note 6 has a Young's modulus of 105 Gpa or more.

  The building material according to appendix 7, in the building material according to any one of appendixes 1 to 6, the main body is formed in a longitudinal shape, and includes a cap covering at least a part of the longitudinal end face of the main body.

  The building material according to appendix 8 is the building material according to appendix 7, wherein the hole is provided in the vicinity of the end face in the longitudinal direction of the main body, and the cap is locked in the hole.

  The formwork for placing concrete according to note 9 is a formwork for placing concrete that is constructed using the building material according to any one of notes 1 to 8 as a formwork material.

(Effect of Supplementary Note)
According to the construction material described in Appendix 1 and the concrete casting form described in Appendix 9, the main body includes at least one of the intermediate layer and the inner layer or the outer layer, and the intermediate layer includes carbon fiber. In addition, since the inner layer and the outer layer contain basalt fiber or high melting polyester, they can be formed lighter than FRP single pipe pipes while having impact resistance and compression resistance, and their usability (specifically Transportability, assemblability, etc.).

  According to the construction material described in Appendix 2, the body comprises an inner layer and an outer layer, the inner layer comprises basalt fibers and the outer layer comprises a high melting polyester, so protecting the carbon fibers with a high melting polyester Meanwhile, it is possible to reinforce the carbon fiber with the basalt fiber and to further improve the impact resistance and the compression resistance.

  According to the construction material described in Appendix 3, the intermediate layer contains 80% by weight of carbon fibers in the total weight of the main body, the inner layer contains 15% by weight of basalt fibers in the total weight of the main body, and the outer layer is high Since the molten polyester is contained at 5% by weight of the total weight of the main body, carbon fibers can be set to 80% by weight of the total weight of the main body, and the cost can be reduced.

  According to the construction material described in Appendix 4, since the main body is hollow cylindrical or hollow rectangular cylindrical, the construction material can be formed lighter and lighter than in the case where the main body is solid. .

  According to the construction material described in Appendix 5, since the total weight of the main body is 625 g / m or less, the total weight of the main body is lighter than half of the total weight (for example, 1380 g / m) made of FRP single pipe It can also be formed (with a weight of about 1/8 that of an iron single pipe pipe), and the usability can be further improved.

  According to the building material described in Appendix 6, since the Young's modulus is 105 Gpa or more, the Young's modulus can be 105 Gpa or more, and the rigidity necessary for the building material can be secured.

  According to the construction material described in Appendix 7, since the main body includes the cap covering at least a part of the longitudinal end face of the main body, the longitudinal end of the main body can be protected, and the durability can be improved. .

  According to the construction material described in appendix 8, the hole is provided in the vicinity of the end face in the longitudinal direction of the main body and the cap is locked to the hole, so that the cap can be locked to the hole of the main body and the cap is from the main body It can control that it comes off.

DESCRIPTION OF SYMBOLS 1 formwork 10 siding board 20 separator 21 holding part 30 crosspiece 40 single pipe 41 main body 42 middle layer 43 inner layer 44 outer layer 50 cap 51 closing side end 52 side 53 opening side end 54 pressing part 55 knob 56 recessed portion 57 knob portion 58 fitting portion 60 attachment member 70 connection member S installation surface

Claims (9)

It is a building material,
Equipped with a body,
The body is
With the middle layer,
At least one of an inner layer covering at least a part of the inner surface of the intermediate layer, or an outer layer covering at least a part of the outer surface of the intermediate layer,
The intermediate layer contains carbon fiber,
The inner layer and the outer layer comprise basalt fibers or high melting polyester.
Building materials. The body is
Comprising the inner layer and the outer layer,
The inner layer comprises basalt fibers,
The outer layer comprises high melting polyester,
The building material according to claim 1. The intermediate layer contains 80% by weight of carbon fibers in the total weight of the main body,
The inner layer comprises basalt fibers at 15% by weight of the total weight of the body,
The outer layer comprises high melt polyester at 5% by weight of the total weight of the body,
The building material according to claim 2. The body is in the form of a hollow cylinder or a hollow square cylinder.
The building material according to any one of claims 1 to 3. The total weight of the body is 625 g / m or less,
The building material according to any one of claims 1 to 4. Young's modulus is more than 105Gpa,
The building material according to any one of claims 1 to 5. The body is
Formed in a longitudinal shape,
A cap covering at least a part of the longitudinal end face of the body,
The building material according to any one of claims 1 to 6. A hole is provided in the vicinity of the longitudinal end face of the main body,
The cap is locked in the hole,
The building material according to claim 7. A formwork for placing concrete, configured using the building material according to any one of claims 1 to 8 as a formwork material.

Images