JPH0549921U - Civil / construction structure - Google Patents

Abstract

(57) [Summary] [Structure] A civil engineering / building structure 1 constructed by using a civil engineering / building structural member 2 in which a hardened cement material layer 4 is laminated on at least one surface of a foamed resin block 3.・ The structural member 2 for construction is installed on the mounting surface 6 by the fixing means 5.
It has been fixed against. [Effect] The civil engineering / construction structural member 2 does not fall over, can be efficiently constructed, and is a stable structure as a whole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a civil engineering / building structure, and more specifically, to a civil engineering / building structural body which is constructed efficiently without falling down of the civil engineering / building structural member and is stable as a whole. Is.

[0002]

[Prior Art]

 Conventionally, in the construction or renovation work of structures such as roads and platforms for railway stations, under the heavy traffic of people and vehicles, a narrow space in a limited area was secured, and the existing facilities were destroyed. They were constructing a new structure mainly for concrete while embanking and building rebar. Therefore, it is not possible to use large-scale transportation machinery in construction under such circumstances, and therefore, it is necessary to transport earth and sand or crushed concrete at the repaired part, or to use materials such as concrete hardening formwork. There is no choice but to rely on human power for transportation work. In addition, the conventional method of hardening concrete requires several days to obtain concrete of the required strength, so the construction period will be long, and the traffic control and safety of people and cars during that period will be lengthened. I had to give full consideration to it. Therefore, in order to shorten the construction period, the present inventor proposed a method of stacking and constructing foamed resin blocks (actual application No. 2-74607) instead of embankment or concrete pouring.

However, even when the foamed resin blocks are piled up for construction, the foamed resin blocks are exposed at the upper surface portion and the side surface portion of the stacked structure, which is the surface layer portion of the structure, and therefore it is necessary to further construct the surface layer material. For example, in the case of a railway station platform, a cement base floor layer and a surface material such as asphalt are formed on the upper surface for transportation of heavy objects and frequent movement of people. In order to form a layer and to increase the strength against foreign matter such as train heat and gravel on the side surface, it is necessary to install wall members such as concrete boards and sheet piles, which is troublesome. It was a thing. Therefore, in order to solve the above-described conventional problems in the above-mentioned foamed resin block stacking method, the present inventor has proposed that a cement hardened material layer is laminated on at least a part of at least one surface of the foamed resin block. We proposed a structural member for civil engineering and construction, which is characterized by

[0004]

[Problems to be solved by the device]

 However, in the civil engineering / construction structural members as described above, the foamed resin block layer is much lighter than the cement hardened material layer, and the center of gravity is biased toward the cement hardened material layer side. It has the drawback that it tends to fall down to the physical layer side, hinders the construction, and that strain due to its eccentricity remains inside the constructed structure and the structure as a whole lacks stability. The present invention solves the above-mentioned conventional problems and provides a civil engineering / building structural body which is constructed efficiently without falling down of the civil engineering / building structural member and is stable as a whole. It is intended.

[0005]

[Means for Solving the Problems]

 As a result of earnest studies, the inventors of the present invention were able to achieve the above object by adopting the following configuration. That is, the first aspect of the present invention is a civil engineering / construction structural body constructed by using a civil engineering / construction structural member in which a hardened cement layer is laminated on at least one surface of a foamed resin block. The present invention provides a civil engineering / construction structure characterized by being fixed to an installation surface by a fixing means. The second aspect of the present invention is to provide a cement hardened product on at least one surface of a foamed resin block. In a civil engineering / building structure constructed by stacking layers of civil engineering / building structural members on the outside of a foamed resin block group that does not have a cement hardened material layer, the cement hardened material layer constitutes the outer wall surface. The civil engineering / construction structural member is fixed by a fixing means to the foamed resin block that does not have the cement hardened material layer adjoining, - is intended to provide an architectural structure.

Hereinafter, the present invention will be described in more detail with reference to the drawings. A civil engineering / construction structural member (hereinafter referred to as a member) 2 used in the present invention is one in which a hardened cement layer 4 is provided on at least one surface of a foamed resin block 3, as shown in FIG. Here, the block means that the blocks can be stacked substantially without gaps by arranging or stacking them in large numbers, or by combining other foams of the same shape or different shape on or in the middle. It may have any shape. The simplest shape of the block is a cube or a rectangular parallelepiped. Further, the two opposite surfaces may be inclined in parallel, or may have a phase-shift structure.

The foamed resin block 3 constituting the member 2 used in the present invention can be formed of various foamed resins, examples of which include polystyrene, polyethylene, polypropylene, polyurethane, polyvinyl chloride and the like. It is possible to list foamed products of the above resin. The foamed resin block 3 usually has a density of 0.01 to 0.05 g / cm ³ . The size is not particularly limited, but is preferably 100 to 200 cm in length, 50 to 100 cm in width, and 50 to 100 cm in thickness. It is preferable that the foamed body of the foamed resin block 3 has cells that are independent of water resistance and strength.

The hardened cement material layer 4 constituting the member 2 used in the present invention can be formed by a hardened material of various cements such as concrete and mortar. Portland cement, moderate heat Portland cement, early-strength Portland cement, low-sulfate Portland cement, white Portland cement and other Portland cement, hydraulic lime, roman cement, natural cement, alumina cement, blast furnace cement, silica cement, expansion Cement, colored cement, etc. are available. Among these, it is preferable to use Portland cement, hydraulic lime, natural cement, blast furnace cement, expanded cement, and colored cement. Further, various aggregates, reinforcing materials, weight-reducing materials, water glass and the like can be added to this cement. Examples of aggregates include ordinary aggregates such as sand, gravel, and silica foam, and artificial lightweight aggregates such as expanded clay, perlite, and expanded slag. Examples of the reinforcing material include various organic and inorganic fibers such as slag fiber, carbon fiber, nylon and polyester fiber. Examples of the weight-reducing material include expanded resin particles such as polystyrene resin, polyvinyl chloride resin, and polypropylene resin having a density of 0.008 to 0.1 g / cm ³ and a particle diameter of 2 to 15 mm. In particular, when foamed resin particles are mixed in the cement hardened material layer 3, it is lightweight and has excellent heat insulating properties. Moreover, when constructing a railway platform or road, when asphalt is used as a surface material, The expanded resin particles on the surface of the hardened cement layer are melted by the heated asphalt, and as a result, the asphalt enters the holes of the particles after melting, resulting in excellent adhesion between the asphalt and the hardened cement layer. It becomes a thing. The mixing ratio of the foamed resin particles is usually 0.2 to 50 parts by weight with respect to 100 parts by weight of cement. The thickness of the hardened cement material layer 3 is usually 2 to 15 cm.

The cement hardened material layer 4 may be provided on two surfaces of the foamed resin block 3 including the upper surface portion and one side surface portion when the member is provided at the corner of the structure. Further, the cement hardened material layer 4 may be provided on the upper surface of the foamed resin block and on three surfaces of two continuous side surfaces for the corners of the upper part of the structure.

In order to manufacture the member 2 used in the present invention, the foamed resin block 3 which has been foam-molded is placed in a mold, and uncured cement mortar is poured from above to cure, cure and harden the cement-hardened material layer 4 Should be formed. On the contrary, the cement hardened product layer 4 may be formed by suppressing the foamed resin block 3 from above the cement mortar put in a predetermined amount in the mold to cure and harden it.

Alternatively, the foamed resin block 3 and the hardened cement material layer 4 may be separately prepared, and an adhesive may be used to integrate the two. If the cement hardened material layer 4 is integrated with the foamed resin block 3 by an inverse taper type joining means as shown in FIG. 1, the hardened material layer 4 will not be peeled off. It is suitable. Such a structure can be easily obtained by previously forming a reverse taper concave portion when molding the foamed resin block 3 and integrating cement mortar into the concave portion and curing the concave portion.

The civil engineering / construction structure of the present invention is constructed using the member 2 as described above, and examples of the application thereof include roads and railway station platforms.

As shown in FIG. 1, when constructing a platform 1 for a railway station as a civil engineering / construction structure of the present invention, for example, after shaving earth or sanding it, sand or gravel is laid, The member 2 having the cement hardened material layer is fixed on the installation surface 6 by the fixing means 5 on the foundation solidified by tamping from above, and subsequently, the cement hardened material layer is not provided. Laminate the foamed resin blocks 7 and arrange them. In the upper stage, the member 2 and the foamed resin block 7 having no cement hardened material layer are further stacked. On the upper surface and the side surface of the structure, the cement hardened material layer 4 of the member 2 is laid out so as to be located on the surface, and the foamed resin block 7 having no cement hardened material layer is stacked inside to form a structure. None, and the floor member 8 is formed on the structure with asphalt, concrete, tiles, or the like. In addition, 9 is a rail.

The means for fixing the member to the installation surface is not particularly limited, but some examples are shown below. As shown in FIGS. 3 and 4, it has a plate-like surface with an overall length of 10 cm, a maximum width of about 10 cm, and a thickness of 0.5 to 2 mm, and one of its ends pierces the member. The member can be fixed by using fixing means having a portion of which one end pierces and fixes the installation surface. Specifically, for example, as shown in FIGS. 5 and 6, a member is placed so that the hardened cement material layer 4 forms the side surface of the structure, and the fixing means is attached to an arbitrary portion of the member, for example, the foamed resin block 3. One of the fixing means 5 is pierced and the other of the fixing means 5 is pierced and fixed to the installation surface 6. If the member 2 can be fixed, it is not necessary to pierce the foamed resin block 3 with the fixing means 5. For example, a member that can be temporarily pressed so that the member does not fall down may be used. As shown in FIG. 7, it is also possible to use a rod-shaped U-shaped fixing means 5 capable of fixing several members 2 together on the installation surface 6. As shown in FIG. 8, in addition to the fixing means as described above, the member 2 can be fixed by the fixing means 5 to the foamed resin block 7 having no cement cement layer adjacent thereto. It is preferable that the fixing means used in this case has teeth that are bent in the same direction with respect to the plate-shaped main body.

As described above, the shape and size of the fixing means can be freely set. It may be made of any material, but is usually made of metal or wood.

In this way, the lowermost layer of the structure is laid out, and then the foamed resin block having no member and the cement hardened material layer is laid out on top of it, in which case an adhesive, preferably a halogen atom, is used. It can be bonded to the bottommost layer using a flame-retardant adhesive containing, or can be appropriately fixed with a connecting fitting having teeth on the top and bottom. Alternatively, the member can be fixed using the same fixing means as described above, with the lowest stage as the installation surface.

[0017]

[Effect of the device]

 In the civil engineering / construction structure of the present invention, the lowermost member is fixed by the fixing means and the parts do not fall down to the cement hardened material layer side, so that the structure is efficiently constructed and at the same time, as a whole. It is a stable structure.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a platform as an example of a civil engineering / construction structure of the present invention.

FIG. 2 is a perspective view of a civil engineering / construction structural member used in the present invention.

FIG. 3 is a perspective view of an example of fixing means used in the present invention.

FIG. 4 is a perspective view of an example of fixing means used in the present invention.

FIG. 5 is a perspective view of an embodiment in which the structural member for civil engineering and construction used in the present invention is fixed by a fixing means.

FIG. 6 is a perspective view of another embodiment in which the civil engineering / construction structural member used in the present invention is fixed by a fixing means.

FIG. 7 is a perspective view of another embodiment in which the civil engineering / construction structural member used in the present invention is fixed by fixing means.

FIG. 8 is a perspective view of another embodiment in which the civil engineering / construction structural member used in the present invention is fixed by a fixing means.

[Explanation of symbols]

 1 platform 2 civil engineering / construction structural member 3 foam resin block 4 cement hardened material layer 5 fixing means 6 installation surface 7 conventional foam resin block

Claims (2)

[Scope of utility model registration request] 1. A civil engineering / building structural body constructed using a civil engineering / building structural member comprising a layer of hardened cement material laminated on at least one surface of a foamed resin block, wherein the civil engineering / building structural member is a fixing means. A structure for civil engineering and construction, characterized by being fixed to the installation surface by. 2. A civil engineering / construction structural member comprising a layer of a hardened cement material laminated on at least one surface of a foamed resin block, wherein the hardened cement material layer is outside the group of foamed resin blocks having no hardened cement material layer. In a civil engineering / building structure constructed to form a wall surface, the civil engineering / building structural member is fixed by a fixing means to an adjacent foamed resin block having no cement hardened material layer. A structure for civil engineering and construction, characterized by.