JP4014394B2 - End treatment method for elastic pavement - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal processing method in a curb portion when paving an elastic layer on a pavement base layer such as an athletic field.
[0002]
[Prior art]
Conventionally, when elastic paving is performed on a ground base, the end treatment is performed by, for example, a curb that lacks an L-shape above the outer surface of the curb, as described in JP-A-4-203003. , Continuously placed, press the formwork plate against the curb side, spread and apply fluid elastic paving material to the ground surface, curb crest and L-shaped notch, and cure this elastic paving member This was done by removing the formwork plate later. Also, according to Japanese Patent Laid-Open No. 9-49205, a method is proposed in which an elastic partition plate is fixed to the side surface of the L-shaped notched curb and then a portion protruding upward from the fluid elastic paving material is proposed. Has been.
[0003]
However, in the method described in JP-A-4-203003, the mold plate is temporarily fixed to the curb segment with cloth tape, the elastic pavement material is poured, and the mold plate is removed after curing. Was cumbersome and time-consuming to process the terminal. Further, according to the method described in Japanese Patent Application Laid-Open No. 9-49205, a plate for formwork is not required, but a special processing such as an L-shaped notch is required on the curb beforehand.
[0004]
[Problems to be solved by the invention]
The object of the present invention is to provide a terminal processing method that overcomes the drawbacks of the conventional methods described above and does not require the use of a mold plate, and does not require special processing on the curb in advance. It is to be.
[0005]
[Means for Solving the Problems]
The inventors of the present invention have made various studies to achieve the above object, and in elastic paving, as a partition plate used for paving end treatment, one end in the longitudinal direction of the plate is continuously or discontinuously formed into a V-shaped cross section. An elastic partition plate having a protruding shape is devised, and this partition plate is fixedly attached to a general-purpose curbstone generally used as a paving stop by hooking it in a V-shaped section, and then the partition An elastic pavement end treatment method has been found in which an elastic pavement material is applied or spread on a base layer partitioned by a plate and spreads to integrate the elastic pavement material and the elastic partition plate.
That is, the present invention provides (1) an elastic partition plate having a shape in which one end in the longitudinal direction of the plate protrudes continuously or discontinuously into a V-shaped cross section,
(2) When paving the elastic layer on the paving base, the elastic partition plate of (1) above is connected and fixed to the curb at the end of the base layer, and the elastic paving material is placed on the base layer partitioned by the partition plate. It is the terminal processing method of the elastic pavement characterized by expanding and pavement, and (3) the elastic pavement terminal processing method of (2) above, wherein the elastic pavement material is a fluid elastic pavement material.
According to the present invention, since the elastic partition plate is suspended from the curb at the V-shaped portion, the fixing work of the partition plate to the curb can be performed stably and reliably without slipping and sliding off. In addition, the elastic partition plate fixed to the curb is an elastic pavement material, preferably a fluid elastic pavement material, and a V-shaped cross section, which is constructed to a thickness that reaches the upper end of the elastic partition plate on the base. Adhering to the wide surface of the upper surface and lower surface of the part, the effect is as if the anchor was driven in, and further integration of the cured elastic layer and the elastic partition plate can be achieved. As described above, the present invention is a method for performing terminal processing of elastic pavement with simple effects and excellent effects.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the drawings.
FIG. 1 shows a typical example of the elastic partition plate of the present invention.
In the elastic partition plate (1), one end of the elastic partition plate (1) protrudes in a V-shaped cross section (2) continuously or discontinuously along the longitudinal direction of the plate.
FIG. 2 is a view showing a cross section of the elastic partition plate having one end protruding in a V-shaped cross section (2).
In this elastic partition plate, the shape of the portion protruding in the V-shaped cross section (2) is not particularly limited, but as the angle of the tip of the V-shaped portion protrudes more acutely, The work to hang on the curb can be done more easily and reliably, and the total area of the upper surface (5) and lower surface (6) of the V-shaped section (2) becomes wider, so Integration with the elastic paving material to be constructed on top is improved.
Moreover, the part which protruded in the cross-sectional V shape (2) may include the part which is not V-shaped cross-section not only in the case where it continues along the longitudinal direction of a board but in the dotted line, the broken line, or the chain line shape. That is, the case where the part which protruded in cross-sectional V shape (2) is discontinuous may be sufficient.
Further, a recess (3) as illustrated in FIG. 2 is provided on the inner side surface (4) of the partition plate (the surface on which the partition plate is fixed to the curbstone), and a pool of the sticking agent when the partition plate is fixed to the curbstone. By providing a portion, the fixing effect can be enhanced. This portion is not particularly limited, and can be provided in an appropriate shape and location as desired, or this portion need not be provided.
[0007]
The material of the elastic partition plate is not particularly limited, and examples thereof include polyurethane (preferably a two-component room temperature curing polyurethane elastomer), ethylene propylene copolymer (EPDM), styrene butadiene rubber (SBR), and the like. Various elastic materials are used. Usually, materials having similar or the same performance as the material used as the elastic paving material to be constructed on the base layer are compatible with each other, and are preferable for obtaining an excellent terminal treatment effect. In particular, a polyurethane-based material is preferable from the viewpoint of compatibility with polyurethane preferably used as an elastic paving material.
For example, when the elastic pavement is made of a polyurethane elastomer, an elastic partition plate can be manufactured using a material from which the polyurethane elastomer can be obtained.
Usually, for example, a main component and a curing agent, which are two-component room temperature curable polyurethane materials, are mixed in a mold manufactured according to the elastic partition plate shown in FIG. 2, poured into a mold, solidified, and released. The elastic partition plate of the present invention is obtained.
A polyurethane elastomer material preferably used as the material of the elastic partition plate and the material of the elastic pavement layer described below is a two-component room temperature curable polyurethane elastomer, for example, a room temperature curable urethane described in JP-A-6-206964. Two-component room temperature curing using an active hydrogen compound containing an elastomer, for example, a urethane polymer having an isocyanate group as the main ingredient and, if necessary, a filler, a catalyst, a plasticizer, a pigment, a weathering stabilizer, etc. as a curing agent Type polyurethane or already known materials can be used.
[0008]
As illustrated in FIG. 3, the elastic pavement end treatment method of the present invention first prepares a ground or a site where a coat is to be constructed, and a crushed stone layer (12), a concrete layer (13), and a mortar layer (14 ). Depending on the ground and coat to be constructed, curbstones (9) are continuously arranged along the periphery. The crushed stone layer (7) and one or more concrete layers or asphalt layers (8) to (8 ′) are further stacked on the inside of the installed curb. Usually, on the crushed stone layer (7), a predetermined pavement material, usually asphalt or concrete, is used to form a curb thickness.
After that, a sticking agent is applied to the curb stones continuously installed on the inner surface (4) of the elastic partition plate shown in FIG. 2, and the protruding V-shaped part (2) as shown in FIG. 3 is curbed. Set it so that it hangs over the corner of (9) and fix it. As the fixing agent, for example, an epoxy resin-based or polyurethane resin-based fixing agent is frequently used.
[0009]
After being sufficiently fixed, an elastic pavement material suitable for forming the elastic layer (10) is applied or poured onto the asphalt or concrete layer (8) partitioned by the elastic partition plate and then spread and applied. The thickness of the elastic pavement layer is not particularly limited. Usually, the elastic pavement material is applied or poured onto the base layer to a thickness not exceeding the position of the uppermost end of the elastic partition plate.
[0010]
In addition, if the desired thickness of the elastic layer is thin and the upper end of the partition plate protrudes from the elastic layer, the portion of the elastic layer is scraped off, and the desired layer thickness is applied beyond the partition plate. If necessary, the tape is continuously attached to the upper end of the elastic partition plate to supplement the height of the partition, and the elastic layer is applied or poured into the elastic layer, and then the tape is removed. It is the scope of the invention.
The pavement material for the elastic pavement layer is not particularly limited as long as it is a pavement material exhibiting elasticity, but in order to enhance the integration of this elastic pavement layer and the elastic partition plate, it is similar to the material used for the elastic partition plate or Those having the same performance are preferred.
In particular, polyurethane-based elastic pavement materials that are widely used as elastic pavement materials and are preferable materials are preferably used. For example, the same two-component room temperature curing type polyurethane elastomer material as that of the elastic partition plate is used.
The elastic material applied or poured in is firmly fixed on the upper and lower side surfaces of the V-shaped section of the elastic partition plate, and an excellent terminal treatment effect can be obtained.
After the elastic pavement processing work is completed, the earth and sand (11) is backfilled on the outside of the curb and the elastic partition plate, and the pavement terminal processing is finished by leveling and planting.
[0011]
【Example】
Hereinafter, the present invention will be described with reference to FIGS.
The form of the elastic partition plate having the cross section shown in FIG. 2 (plate thickness 10 mm, plate height 65 mm, plate length 1000 mm, cross-section V-shaped protrusion height 22 mm, V-shaped tip end angle 60 P, [urethane prepolymer, NCO content 2.9 ± 0.3 wt%, viscosity 5500 ± 500: Mitsui Takeda Chemical Co., Ltd. ], As a curing agent, TSR820CM [urethane resin curing agent, viscosity 5000 ± 16000: manufactured by Mitsui Takeda Chemical Co., Ltd.] is mixed at a ratio of 1: 1, poured into a mold, cured, and released. An elastic partition was obtained.
Assuming the construction of ground pavement, a rectangular ground with a width of 2 m and a length of 6 m is prepared as a part of the ground, and a crushed stone layer (12) with a thickness of 120 mm and a concrete layer with a thickness of 80 mm (13) Further, a mortar layer (14) having a thickness of 30 mm was applied thereon. On this mortar layer, a curb stone (9) having a height of 150 mm and a width of 150 mm was laid so as to form a rectangular periphery having a short side of 1.5 m and a long side of 5 m. A crushed stone layer (7) having a thickness of 190 mm is applied to the inside of the rectangle surrounded by the curb, and then, an asphalt layer (8) to (8) to (8) to (8) is stacked by overlapping an asphalt layer having a thickness of 40 mm and 30 mm thereon. 8 ') was constructed.
Next, a sticking agent (summary primer: epoxy adhesive manufactured by Mitsui Chemicals, Inc.) is applied to the inside surface (4) of the elastic partition plate obtained above on the outside of the curb, and the cross section of the partition plate is applied to the curb. The V-shaped protrusions were continuously attached and fixed so as to hang, and were allowed to stand until cured. After the partition plate is fixed to the curb, the above polyurethane elastomer material is further mixed and poured on the asphalt layer (8) so that the elastic pavement does not exceed the upper end of the elastic partition plate. It was. After curing, earth and sand were backfilled outside the elastic partition and the curb, and turf was planted.
Observation continued throughout the entire paved terminal after curing. Even after 6 months have passed, there is no separation of the partition plates and peeling of the elastic layer, and the roots of the growing plants grow on the pavement terminal of this example tested in accordance with the summer turf growth period. No adverse effects were observed due to intrusion between the partition plate, curb, and each layer.
[0012]
【The invention's effect】
The method of the present invention is a method in which an elastic partition plate and an elastic pavement layer used for pavement terminal processing are integrated and do not use a formwork plate as in conventional terminal processing. No installation or removal process is required. In addition, there is an advantage over the known paving terminal processing such that the curb processing is unnecessary.
Also, the elastic partition plate and the elastic pavement layer can be integrated on the wider surface above and below the protruding portion of the elastic partition plate, and the elastic pavement material bites into the lower surface and hardens. Etc. can be prevented.
Since the V-shaped section of the elastic partition plate has an inclined surface, it can be secured to the curb cliff with the curb corner and with no gaps, making it easy to bond to the curb It is.
[Brief description of the drawings]
FIG. 1 is a view showing an example of an elastic partition plate of the present invention.
FIG. 2 is a view showing a cross section of an elastic partition plate.
FIG. 3 is a diagram showing a construction example of an elastic pavement layer performed using an elastic partition plate.
[Explanation of symbols]
(1) Elastic partition plate (2) V-shaped protrusion (3) Recess (4) Inner surface of elastic partition plate (5) Upper surface of V-shaped protrusion (6) Lower surface of V-shaped protrusion ( 7) Crushed stone inside curb (8) Concrete or asphalt layer inside curb (9) Curb (10) Elastic layer (11) Sediment (12) Crushed stone under curb (13) Concrete layer under curb (14) Curb Lower mortar layer

Claims (2)

When paving the elastic layer on the paving base, for the end treatment of the elastic paving in the shape of the curb at the edge of the base layer projecting one end along the longitudinal direction of the board continuously or discontinuously into a V-shaped cross section An elastic pavement end treatment method comprising connecting and fixing elastic partition plates, and pavement by spreading an elastic pavement material on a base layer partitioned by the partition plates.   The elastic pavement end treatment method according to claim 1, wherein the elastic pavement is a fluid elastic pavement.

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