JPH0687405U - Greave sheet material for concrete paving surface - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a low cost greasing sheet material that can surely form grooves with a predetermined position interval on the road surface and does not generate dust or noise during work. To do. [Structure] A sheet material having water absorption and drainage properties and air permeability is characterized in that convex sides are continuously formed at appropriate intervals in the vertical or horizontal direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sheet material for forming a thin groove on the upper surface of a concrete pavement in a graveling method for preventing slipping on a road surface.

[0002]

[Prior art]

 Conventionally, in order to increase the coefficient of friction between the pavement surface and the tire, and to prevent the occurrence of hydroplaning phenomenon during rainfall and improve drainage performance, a large number of narrow grooves are provided in the vertical or horizontal direction of the pavement surface at specified intervals. Although it has been formed, in order to form these narrow grooves, it is usual to form the grooves by cutting the road surface with a diamond cutter or the like after concrete pouring and curing.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional method of forming grooves by cutting the road surface with a machine after concrete pouring and curing, there is a problem in working environment such as dust being generated during cutting and noise such as mechanical noise and cutting noise being severe. In addition to the above, there is a problem in that a large amount of cost such as machine cost and carry-in cost is required economically.

[0004]

[Means for Solving the Problems]

 The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to reliably form grooves at predetermined positions and intervals on the road surface, and to generate pollution such as dust and noise during work. It is an object of the present invention to provide an inexpensive gleaving sheet material.

As a means therefor, it is characterized in that the convex sides extending in the vertical or horizontal direction of the sheet material having the water absorption and drainage property and the air permeability are continuously formed at appropriate intervals.

With the above structure, since the sheet material has water absorption and drainage properties and air permeability, even if the sheet material is placed in a state of being covered with the concrete upper surface, air bubbles generated between the concrete surface and the sheet material, Alternatively, since the excess water in the concrete is absorbed and discharged by the sheet material, the generation of air bubbles and the like is suppressed, the surface finish becomes very clean, and the concave shape after removing the convex portions embedded in the concrete The shape of can also be formed very accurately. In addition, by discharging excess water from the concrete surface, the water-cement ratio on the concrete surface increases, and it is possible to form concrete with high surface strength.Therefore, the concave mold formed on the concrete surface is chipped or easily destroyed by external force. It is not done. Therefore, since it is possible to omit the cutting work by the machine after placing and curing concrete, it is possible to eliminate pollution such as dust and noise, shorten the construction period, and significantly reduce the cost such as machine cost. It is possible to solve the above-mentioned conventional problems such as the reduction of

[0007]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing an embodiment of the present invention. Reference numeral 1 denotes a sheet material, which is a sheet material 2 made of synthetic resin or steel, on one surface of which a textile material 3 such as a woven fabric or a non-woven fabric is attached, which has a water absorbing / discharging property and an air permeability. For example, the convex sides 4 having a width of 6 mm and a depth of 6 mm that extend in the direction are continuously formed at intervals of 32 mm. At that time, the fibrous material 3 is attached to the side where the convex sides 4 are formed. In addition, small through holes 5 for drainage and exhaust are formed in the plate-like body 2 at appropriate places.

Next, a usage example of the embodiment will be described. FIG. 2 is a cross-sectional view showing the use state of the embodiment of the present invention, in which concrete is placed on the pavement surface and after the leveling work is performed along the concrete top, the sheet of the present invention is used. Place the material in place.

[0009]

[Effect of device]

 As described in detail above, according to the gravel sheet material for concrete pavement surface of the present invention, the sheet material has water absorbing and draining property and air permeability, so that the generation of bubble pock etc. is suppressed and the surface The result is that the finish is very clean, and concave grooves can be formed with great precision after removing the protrusions embedded in the concrete, and by discharging excess water on the concrete surface Since the water-to-cement ratio is high and concrete with high surface strength can be formed, the concave groove formed on the concrete surface has excellent durability. Therefore, since it is possible to omit the cutting work by the machine after placing and curing concrete, it is possible to eliminate pollution such as dust and noise, shorten the construction period, and significantly reduce the cost such as machine cost. It is possible to obtain a gravel sheet material for concrete pavement which is practically useful because it can be reduced to a higher level, work efficiency can be improved, and work environment can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

FIG. 3 is a sectional view showing a usage state of the embodiment of the present invention.

[Explanation of symbols]

 1 sheet material 2 plate-like body 3 fiber material 4 convex side 5 through hole A concrete B groove

Claims (1)

[Scope of utility model registration request] 1. A graving sheet material for a concrete pavement surface, characterized in that the sheet material having water absorption and drainage properties and air permeability is formed by continuously forming convex sides extending in the longitudinal or lateral directions at appropriate intervals.