JP4169642B2 - Elastic pavement peeling prevention construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anti-peeling construction method for elastic pavement materials, and more particularly to an anti-peeling construction method for reliably preventing delamination of elastic pavement materials laminated on a base layer.
[0002]
[Prior art]
Conventionally, elastic pavement materials are used for roads intended for roadways, as well as parks, promenades, walking paths, stadiums, and this elastic pavement material is made of bricks, After placing and laying a foundation layer made of pavement material such as concrete block and asphalt, the surface of this foundation layer is glued with an elastic pavement material that is formed by pressing a mixed material containing rubber chip and adhesive into a plate shape. It was fixed through.
[0003]
However, such an elastic pavement construction method requires a large amount of adhesive, and the surface of the base layer needs to be smooth and accurately laid, and only the adhesive is fixed. When repeated load is applied from the upper surface of the pavement material, there is a problem that the elastic pavement material is peeled off from the surface of the foundation layer. There has been proposed a composite elastic pavement that facilitates positioning and fixing of the elastic pavement (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-229104 (pages 2 to 3 and FIG. 2)
[0005]
[Problems to be solved by the invention]
However, positioning and fixing of the composite elastic pavement as described above uses an elastic pavement press-molded in advance in a plate shape, so it takes a lot of labor and time to position, and the fitting uneven part is Since it is formed vertically with respect to the surface of the foundation layer and the laying surface of the elastic pavement, and is fixed via an adhesive, for example, when an impact load from the vertical direction is applied, or repeated load from above When this occurs, there is a problem that the adhesive is peeled off and the fitting uneven portion is easily removed, so that a sufficient anchoring effect cannot be exerted and peeling is easy.
[0006]
This invention pays attention to such conventional problems, and the elastic pavement material can securely fix the elastic pavement material to the underlayer, and can prevent peeling of the elastic pavement material without problems such as positioning and displacement. The purpose of this invention is to provide an anti-peeling construction method.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention forms a plurality of recesses on the surface of the underlayer with a surface area of 0.1 to 25.0% of the surface area of the underlayer and a depth of 10 to 70 mm. The volume per recess is 2 to 5,000 cm ³ , and the cross-sectional shape is formed to be divergent from the opening toward the inner surface of the base layer, and up to 10 to 90% of the depth of the recess. The gist is to fill an anchor material made of mortar, concrete, resin mortar alone, or a composite material thereof, and then stack a predetermined amount of elastic pavement material in the recess and on the base layer and solidify. Is.
[0008]
Here, as the elastic pavement material, a porous elastic pavement material in which an elastic rubber chip and an adhesive resin are mixed is used, or a fine aggregate having rigidity or elasticity is applied to the surface of powder rubber made of a rubber compound having elasticity. A hybrid aggregate constituted by being attached via an adhesive resin is used.
[0009]
Furthermore, the area of the surface portion of the recess is preferably 0.1 to 25.0% of the surface area of the underlayer, the depth of the recess is preferably 10 to 70 mm, and the volume per recess is 2 to 5,000 cm ³ is good.
The anchor material is preferably filled up to 10 to 90% of the depth of the recess, and the cross-sectional shape of the recess formed on the surface of the base layer is divergent from the opening to the inner surface of the base layer. By forming, an anchor effect can be given.
[0010]
As described above, in the peeling prevention construction method of the present invention, a plurality of recesses are formed at a predetermined depth on the surface of the base layer, and after filling a predetermined amount of anchor material into the recesses, Since a predetermined amount of elastic pavement material is laminated on the formation and consolidated, the elastic pavement material can be securely fixed to the foundation layer, and there is no problem with positioning or displacement, and peeling of the elastic pavement material is prevented. It can be done.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0012]
FIG. 1 shows a partial cross-sectional perspective view of an elastic pavement that has been subjected to the peeling prevention construction method of the present invention. This peeling prevention construction method is applied to a surface of a base layer 1 made of a pavement material such as concrete or asphalt on a predetermined surface. A plurality of recesses 2 are formed at a depth H.
[0013]
Next, after a predetermined amount of anchor material 3 such as mortar, concrete, resin mortar, or a composite material thereof is filled in the recess 2, the recess 2 on the anchor material 3 and the base layer 1 are placed. A fixed amount of elastic pavement material 4 is laminated and consolidated.
[0014]
The area of the surface portion of the recess 2 is preferably in the range of 0.1 to 25.0% of the surface area of the foundation layer 1, and if it is less than 0.1%, the anchor effect is insufficient as the adhesive force of the entire area, and the adhesive force is insufficient. If it exceeds 25.0%, the distance between the recesses is shortened, and the underlying layer is liable to break down, which is also disadvantageous economically.
[0015]
The depth H of the recess 2 is preferably in the range of 10 to 70 mm. If the depth H is less than 10 mm, the anchor effect is insufficient and there is a problem of insufficient adhesion, and 70 mm generally represents the thickness of the underlying layer. Is.
[0016]
Further, the volume per one recess 2 is preferably in the range of 2 to 5,000 cm ³ , and if it is less than 2 cm ³ , the anchor effect is insufficient and there is a problem of insufficient adhesive strength, exceeding 5,000 cm ³ . However, it has a thickness of 70 mm and becomes a cylinder with a diameter of about 30 cm, and the anchor effect becomes weak.
[0017]
The anchor material 3 is preferably filled up to 10 to 90% of the depth H of the concave portion 2. If the anchor material is less than 10%, the anchor material has insufficient strength and has poor durability against stress. There are problems such as insufficient strength of the recesses in the surface layer material and poor durability.
[0018]
Further, as shown in FIGS. 2 and 3, the cross-sectional shape of the recess 2 formed on the surface of the underlayer 1 may be formed in a divergent shape Xa, Xb as it goes from the opening 2 a to the inner surface of the underlayer 1. Desirably, with such a cross-sectional shape, even when an impact load from the vertical direction is applied or when a repeated load is applied from above, the protruding portion 4a protruding into the recess 2 of the elastic pavement 4 Is less likely to come out, and a sufficient anchor effect can be exerted, whereby peeling of the elastic pavement material 4 can be prevented.
[0019]
Further, as the elastic pavement material 4, a conventional porous elastic pavement material in which an elastic rubber chip 5 and an adhesive resin 6 are mixed is used, or the surface of a powder rubber made of a rubber compound having elasticity is rigid or It is also possible to use a hybrid aggregate constituted by attaching a fine aggregate having elasticity via an adhesive resin.
[0020]
Here, the hybrid aggregate is a surface treatment with a surface treatment agent such as a solvent, a liquid rubber solution, a halogen-containing compound, an inorganic acid, an organic acid, etc. on the surface of a powder rubber (rubber particle) made of a rubber compound having elasticity. After the surface treatment, a thermosetting resin (for example, epoxy resin, urethane resin, polyester resin, phenol resin) or a thermoplastic resin (for example, urethane resin, polyamide resin) is optionally applied to the surface of the surface-treated powder rubber. Coats an adhesive resin containing a solvent (ethyl acetate, toluene, xylene, etc.), a non-reactive diluent, a diluent such as a reactive diluent.
[0021]
Then, a fine aggregate having rigidity or elasticity such as cinnabar sand, which is obtained by surface-treating the powdered rubber coated with the adhesive resin with a surface treatment agent such as a silane coupling agent solution (for example, inorganic fine aggregate (eg cinnabar sand) , Fragments of natural stones, artificial stones, etc.) or organic fine aggregates (resin chips, etc.) in small quantities, and hybrid aggregates are produced by attaching fine aggregates to the surface of powder rubber To do.
[0022]
As described above, in the peeling prevention construction method of the present invention, after forming a plurality of recesses 2 with a predetermined depth H on the surface of the base layer 1, and filling the recesses 2 with a predetermined amount of anchor material 3 Since the predetermined amount of the elastic pavement material 4 is laminated and solidified in the recess 2 on the anchor material 3 and on the underlayer 1, the elastic pavement material 4 can be securely fixed to the underlayer 1, Moreover, peeling of the elastic pavement material 4 can be prevented without problems such as positioning and displacement.
[0023]
【The invention's effect】
As described above, the present invention forms a plurality of recesses on the surface of the underlayer at a surface portion area of 0.1 to 25.0% of the surface area of the underlayer and a depth of 10 to 70 mm. The volume per recess is 2 to 5,000 cm ³ , and the cross-sectional shape is formed in a divergent shape as it goes from the opening to the inner surface of the foundation layer, and mortar up to 10 to 90% of the depth of the recess, Filled with anchor material composed of concrete, resin mortar, or a composite of these, and then laminated and solidified a predetermined amount of elastic pavement in the recess and on the foundation layer, so the following excellent It is effective.
(A). As is conventional, the pre-plate without using a press molded elastic pavement material, also does not use a large amount of adhesives can be inexpensively construction.
(B). The elastic pavement can be securely fixed to the foundation layer.
(C). It is possible to prevent peeling of the elastic pavement material without problems such as positioning and displacement.
(D). By using a hybrid aggregate as an elastic pavement, drainage performance, vehicle running performance and durability are excellent, and walkability and noise reduction effects can be exhibited.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional perspective view of an elastic pavement that has been subjected to the peeling prevention construction method of the present invention.
FIG. 2 is a partial cross-sectional view of an elastic pavement showing another embodiment in which the peeling preventing construction method according to the present invention is implemented.
FIG. 3 is a partial cross-sectional view of an elastic pavement showing another embodiment in which the peeling preventing construction method according to the present invention is implemented.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Underlayer 2 Recessed part 2a Opening part 3 Anchor material 4 Elastic pavement material 4a Protrusion part 5 Elastic rubber chip 6 Resin for adhesion H Depth of depression Xa, Xb

Claims (3)

On the surface of the underlayer, a plurality of recesses are formed with a surface area of 0.1 to 25.0% of the surface area of the underlayer and a depth of 10 to 70 mm, and the volume per one of these recesses is , 2-5,000cm ^Three The cross-sectional shape is formed in a divergent shape as it goes from the opening to the inner surface of the base layer, and the anchor is made of mortar, concrete, resin mortar alone or a composite material thereof up to 10 to 90% of the depth of the recess. An anti-peeling construction method for elastic pavement, which is filled with a material and then laminated by solidifying a predetermined amount of elastic pavement in the recess and on the underlying layer.   The elastic pavement peeling prevention construction method according to claim 1, wherein a porous elastic pavement material in which an elastic rubber chip and an adhesive resin are mixed is used as the elastic pavement material.   The hybrid pavement made by attaching a fine aggregate having rigidity or elasticity to the surface of powder rubber made of a rubber compound having elasticity as an elastic pavement through an adhesive resin is used. Detachment prevention construction method for the listed elastic pavement.

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