JPS60159203A - Construction of elastic paving material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a polyurethane resin-based elastic pavement material.

Conventionally, when constructing polyurethane resin yarn elastic paving material on a base material made of hardened all-asphalt concrete or cement concrete, an adhesive (f) was applied to the concrete surface.
The elastic paving material was fixed to the concrete by applying a layer of limer or by fully utilizing the adhesive properties of the elastic paving material itself.

However, according to this fixing method, sufficient fixation can be achieved for construction of ordinary sports facilities and slow-speed running roads for light vehicles, but for example, it is possible to achieve sufficient fixation for construction of horse trails at racetracks and for heavy-duty vehicles. The degree of adhesion is not sufficient under harsh usage conditions such as roads that are used as roads, parking lot passages with frequent vehicle traffic, or sloped or curved roads, which may cause accidents such as peeling.

The present inventors have discovered a construction method that can sufficiently adhere the elastic paving material to the base material so that it does not peel off even under such severe usage conditions, and have arrived at the present invention.

That is, the construction method of the elastic paving material according to the present invention is as follows: 1. l I
J Urethane resin-based elastic paving material (hereinafter simply referred to as "paving material") Asphalt concrete or cement: Base material made of hardened concrete (hereinafter simply referred to as "concrete base material") One or more recesses are provided in the surface layer portion to which the base material is fixed, and construction is carried out so that the elastic paving material fits into the recesses.

According to the present invention, by forming six places in the paving material by fitting into the recesses of the surface layer portion to which the concrete base material is fixed, horizontal tensile force on the paving material is converted into compressive force, and the fitting part This can improve the resistance to the tensile force and completely prevent peeling between the paving material and the concrete base material.

Furthermore, according to the present invention, it is not necessary to completely apply the adhesive (Zolaimer) to the surface layer to which the concrete base material is to be adhered prior to the construction of the paving material, but this adhesive (
When applying VC (Limer), the contact surface area at the mating site has increased, so it can form a stronger bond than before. You can choose. For example, the groove-shaped concave PJra &-1 shown in FIGS. 1 and 2, the planar shape of the groove is linear, broken line, curved, wavy, etc., the cross section j shape is rectangular, and the platform is also Generally, they are semicircular, cross-shaped, etc., and are not limited to grooves, but may also be pile-shaped recesses with the same cross-sectional shape as the grooves. The number of such grooves or piles to be installed is arbitrary, and is appropriately selected in consideration of the construction area of the paving material, the degree of slope, etc.

Among the cross-sectional shapes of the grooves or piles, a rectangular, trapezoidal, semicircular, etc. recess bored in a direction perpendicular to the paved surface has a large tensile strength (preferably).

In addition, as shown in Figure 2, if the cross section is a J-shape that is wider at the bottom, such as an upright shape, a joining effect similar to the suction dovetail joint used for joining wood can be obtained, and the This is preferable because the yield strength in the diagonal direction can also be increased.

One way to install a recess is, for example, to place a mold that can form a recess in the desired shape when pouring concrete, and then remove the mold after the concrete has hardened to the point where it retains its shape. If it has already hardened, there is a method of carving it using a drill, concrete cutter, chisel, chisel, etc.

As the paving material used in the present invention, ready-made carvings such as vulcanized rubber can be used, but polyurethane resin-based liquid elastic paving materials are generally preferred, such as Evercoat (trade names: Evercoat, New Fine Coat (Yamato High School)). Manufactured by Molecular Industry Co., Ltd.)
Kasa's liquid paving material is preferred. When carrying out the present invention using such a liquid paving material, the construction is generally carried out by pouring and casting the paving material onto a concrete base material that has all the recesses of an appropriate shape and number. It is true. Incidentally, as shown in the figure, the paved surface made of the paving material may be appropriately roughened or the like.

The construction of the concrete IJ-T base material can be carried out by a conventional method, for example, by pouring after laying all the crushed stone etc. on the Soshiso surface. Alternatively, a concrete base material of a size suitable for factory production may be used to prepare a block in which the concrete base material and the paving material are fixed in advance at the factory stage.

[Brief explanation of the drawing]

1 and 2 are sectional views for explaining the present invention in detail. ■...Elastic paving material, 2...Concrete base material, 3.
・Concavity. Figure 1

Claims (1)

[Claims] When adhering the urethane resin-based elastic paving material to a base material made of a hardened asphalt concrete or cement concrete, the base material layer adhesion surface layer γf is preliminarily applied.
Provide a bow or multiple recesses in li, and set nil in this recess.
A method of constructing an elastic paving material, characterized in that the construction is performed so that the elastic paving material fits together.