CS215663B1 - Equipment for surface treatment of roads, in particular non-slip - Google Patents

Abstract

The invention solves the anti-skid treatment of road surfaces. Simultaneous laying of the lower microlayer of binder and the upper microlayer of gritting material behind the chassis of a moving work vehicle. Furthermore, the invention can be used for the surface treatment of paved airport surfaces. The invention is best characterized by the location of the working device for applying the binder (3) and the working device for gritting (2) in Fig. 1.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for the treatment of road surfaces and other paved ground surfaces during maintenance and construction.

Until now, anti-cambering of roads has been carried out by laying load-bearing surface layers β with a marrow texture. The surface loses its anti-skid properties by gradual crimping and cooling, which is given mainly by the shape and size of the micronerity of the surface. After the surface has been worn, the anti-skid treatment is still carried out by laying a new carrier coating. Mostly ee uses the laying of a layer of stone crumb encapsulated with bitumen, which is determined primarily by the requirement of its strength and cohesiveness and in practice it is nkollkacentimeter. Asphalt binder coating reduces the roughness of K.eniva. Another method used is the two-phase laying of surfaces, in which the road surface is first sprayed with asphalt binder and in the second stage sprinkled with aggregate by means of a vehicle carrying a grit. Since the vehicle with the feeder passes over the non-stretched surface layer, the properties of this layer are determined by the technology so as not to roll the freshly laid layer onto the wheels of the passing vehicle. Both of the above methods increase the road surface to such an extent that after multiple installation adjustments to the related buildings are necessary. The Slurry Seal surface treatment does not have the necessary slip properties, especially since the binder is spread and smoothed on the surface of the aggregate.

The anti-skid properties of the materials used in several centimeters of the known treatments are used only in a part of its surface micro-return.

These drawbacks are solved by the anti-lock treatment of road surfaces according to the invention, which creates an anti-skid surface microlayer consisting of a lower microlayer of binder and an upper microlayer of gritting material. Laying is carried out in one phase behind the rear wheels of the moving work vehicle so that the binder first hits the surface to be treated and immediately follows the spreading material. The short time interval between spraying and spreading prevents premature drying of the thin binder layer.

The double-layered installation performed by one vehicle without crossing the surface allows the creation of an anti-skid microlayer and the most advantageous surface texture and maximizes the use of the material properties without affecting the requirements of technology and load-bearing capacity. This also provides prerequisites for high material consumption and high productivity. An example would be a laying in which the treated surface is provided with a layer of binder, i.e. 1 mm of asphalt solution, on which a continuous layer of gritting material, i.e. stone crumb size 2-3 mm, is simultaneously poured onto the work vehicle.

The road surface treatment device according to the invention is a working vehicle superstructure consisting of a spreading device and a binder application device, arranged so that the coating devices and the spreading devices are located behind the working carriage chassis.

1 is a longitudinal sectional view of an example of a road surface treatment device according to the invention; FIG.

The working vehicle 8 forms the chassis 2 of the lorry β by the superstructure of the spreading device and of the device for applying the binder to the surface to be treated 1. The spreading device consists of a spreading device 6 which is a container of spreading material 6 conveyed to the spreading device 2. The spreading device 2 is connected to the spreader J only at the end of the working vehicle 8 behind the chassis j and behind the coating device J.

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The binder application device consists of a storage tank 6 for the binder 2 of the tap 10, the metering pump 11, the supply line 12 and the coating device J, which in the embodiment form a spray bar and jets located behind the chassis 2.

The surface treatment apparatus according to the invention can further be used in the chemical maintenance of Silnie in the winter period, as well as in agriculture for simultaneous sprinkling and spraying.

Claims (1)

1. It starts with the surface treatment of roads, in particular anti-skid, characterized in that it consists of a working vehicle (8) carrying behind the chassis (9) a coating device (3) for spreading the surface and a spreading device (2) for spreading binder pbáýiřa ^ Íí Bálálělel. Ϊ. More particularly, my reservoir (6), tap (10), dispenser (11), and piping (12) to the coating device (3) formed by the sprayer (6) are provided. 4) connected to a spreading device (2) which forms a spreader, the device (3) being coupled to a work vehicle (8) between its undercarriage (9) and the center of the spreader (10).