JP3156190B2 - Pavement reinforcement method and reinforcement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pavement reinforcing method and a reinforcing material for roads, railway floors, rooftop parking lots of buildings, and the like.

[0002]

2. Description of the Related Art As a method for imparting strength to an asphalt pavement road, it is known to embed a sheet-like reinforcing material in asphalt pavement. This type of reinforcing material is configured by laminating a release sheet or mineral particle particles on both sides of a net-like core material via an adhesive, and is usually wound up in a roll shape. Then, as the reinforcing material is laid on the preceding pavement of concrete or asphalt while peeling the release sheet, asphalt pavement of subsequent pavement is performed.

[0003]

[Problems to be solved by the present invention] The above-mentioned pavement technology has the following problems. <B> When laying the reinforcing material, the work of separating the release sheet is troublesome, and the release sheet is generated as a large amount of industrial waste.

<B> Since the surface of the reinforcing material from which the release sheet has been peeled off has adhesiveness, it is difficult to re-lay once laid on the preceding pavement.

<C> The elongation of the material itself is large and it is difficult to restrain the pavement.

<D> When a reinforcing material is laid between asphalts, a layer of the reinforcing material is formed in the asphalt, and it is difficult to integrate the asphalt above and below the reinforcing material. For this reason, the reinforcing material is easily peeled off due to vibration during use and cracks are easily generated. Also, if the elongation of the reinforcing material is large,
Easy to induce cracks.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a pavement reinforcing method and a reinforcing material which are excellent in workability and can avoid the generation of industrial waste. To provide.

[0008]

That is, the present invention relates to a method for reinforcing a pavement in which a sheet-like reinforcing material is interposed in a pavement such as between a preceding pavement and a subsequent pavement. A first step of using a reinforcing material to which a coating material is adhered, dissolving the coating material on the lower surface by utilizing the heat of the preceding pavement, and laying the reinforcing material on the upper surface of the preceding pavement; A pavement reinforcing method characterized by comprising a second step of dissolving a coating material on an upper surface by using retained heat and laminating a subsequent pavement on an upper surface of the preceding pavement. Further, the present invention is used by interposing between the leading pavement and the trailing pavement.
Te sheet-like reinforcing material odor, stiffener is composed of a core material, and an adhesive provided on both surfaces of the core material, a sheet-like covering material which is provided on the outside of the adhesive, the dressing pavement A material that melts due to the heat of its own and melts into the pavement or adhesive.
Characterized that you structure Ri is reinforcement.

[0009]

An embodiment of the present invention will be described below with reference to the drawings.

<A> Reinforcement (FIGS. 1 and 2) FIG. 1 and FIG. 2 show a reinforcement 10. The reinforcing material 10 is composed of a net-shaped core material 20 and coating materials 41 and 42 bonded to both surfaces of the core material 20 via an adhesive 30. Hereinafter, each part will be described in detail.

<B> Core material (FIGS. 1 and 2) The core material 20 has a tensile modulus of elasticity of 20 GPa or more and a heat resistance of 18 GPa.
It is constituted by a net-like body in which wires of 0 ° C. or higher are woven in a lattice shape, and for example, aromatic wires such as aromatic polyamide fibers, glass fibers, and carbon fibers can be adopted. It is desirable that the lattice mesh of the core material 20 be 10 mm × 10 mm or less. still,
As a matter of course, a known nonwoven fabric or woven fabric may be used for the core member 20.

<C> Adhesive (FIGS. 1 and 2) The adhesive 30 is used to make the core 20 conform to the asphalt layer when the reinforcing material 10 is laid in the asphalt layer, and is used to adhere to the asphalt. An asphalt emulsion having good properties can be used. The adhesive 30 is applied to both sides of the core material 20 by a known application technique.

<D> Coating material (FIGS. 1 and 2) The coating materials 41 and 42 are heat-meltable sheet materials that are melted at a temperature of about 100 to 140 ° C., for example, polyethylene, ethylene and vinyl acetate copolymer. Materials such as coalescing, styrene butadiene, polyurethane, soft polyvinyl chloride, rubber, wax, polyurethane, polyvinyl acetate, polyvinyl alcohol, and modified polyamide can be used. In short, it is sufficient that the covering materials 41 and 42 have a property of melting by the heat of asphalt held at the time of construction.

[0014]

Next, a method of using the reinforcing member 10 will be described. <A> Laying of Reinforcing Material (FIGS. 3 and 4) The preceding pavement 60 such as asphalt roadbed is constructed, and the reinforcing material 10 is laid on the preceding pavement 60 immediately before final compaction.
In the present invention, it is not necessary to peel off the coating materials 41 and 42, and they are laid as they are. Therefore, when the laying position of the reinforcing material 10 is shifted, the correction is easy. And pavement 6
The final rolling of the preceding pavement 60 is performed from above the reinforcing member 10 laid on the top of the pavement. As shown in FIG. 4, the covering material 41 on the lower surface side constituting the reinforcing material 10 receives the heat of the preceding pavement 60 and melts.
Therefore, the adhesive 30 on the lower surface of the reinforcing material 10 is
Familiar with and integrated. At this time, the covering material 42 on the upper surface of the reinforcing material 10 remains without being dissolved.

<B> Laying of Surface Layer (FIG. 5) Next, as shown in FIG. 5, a surface layer 70 made of asphalt is constructed on the reinforcing material 10. At the time of constructing the surface layer 70, as shown in FIG. 5, the covering material 42 located above the reinforcing material 10 is heated and melted by the surface layer 70, and the adhesive 30 on the upper surface of the reinforcing material 10 and the surface layer 70 are integrated and integrated. I do. The reinforcing material 10
When a plurality of layers are stacked, they may be interposed between any layers.

[0016]

As described above, the present invention has the following advantages. <B> By using a reinforcing material whose both sides are covered with a heat-soluble coating material, the material is melted by the heat of the asphalt, eliminating the need to peel off the coating material when laying, resulting in good workability. Become.

<B> Since the reinforcing material can be laid with the covering material attached, the laying position can be corrected any number of times.

<C> Generation of cracks can be reliably prevented.

<D> The dissolved coating material does not dissolve into asphalt or the adhesive, and there is no fear of deteriorating the performance of the asphalt or the adhesive. In addition, it is collected and disposed of as conventional industrial waste. No need. Also, it is not necessary to remove the reinforcing material when using the asphalt regeneration treatment, and it can be used as a material.

[Brief description of the drawings]

FIG. 1 is a perspective view of a reinforcing member.

FIG. 2 is an enlarged cross-sectional view of a reinforcing member.

FIG. 3 is an explanatory view of a method of using a reinforcing material.

FIG. 4 is an explanatory view of a method of using a reinforcing material.

FIG. 5 is an explanatory view of a method of using a reinforcing material.

Claims (2)

(57) [Claims] 1. A pavement reinforcing method in which a sheet-like reinforcing material is interposed in a pavement such as between a preceding pavement and a subsequent pavement, wherein a reinforcing material having a hot-melt coating material bonded to both surfaces is used. A first step of dissolving the coating material on the lower surface by using the heat of the preceding pavement and laying the reinforcing material on the upper surface of the preceding pavement; and coating the upper surface by using the heat of the following pavement. A pavement reinforcing method, comprising a second step of dissolving a material and laminating a subsequent pavement on the upper surface of the preceding pavement. 2. Use interposed between a leading pavement and a trailing pavement
Sheet-like reinforcing member odor Te, reinforcing material, a core material and an adhesive provided on both surfaces of the core material, contact
Consists of a sheet-like covering material which is provided on the outside of the wear agent, wherein the coating material is melted by the heat held by the pavement, in paving, Wakashi
Ku is characterized that you structure than the material to blend into the adhesive, the reinforcing member.