JPS5886202A - Repairing of paved road - 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 for repairing paved roads, particularly asphalt pavement using a construction method using high-frequency electric fields, and its purpose is to reuse new composite materials. The purpose is to provide an inexpensive repair method by eliminating waste of mixed materials and simplifying the repair process to reduce labor costs and shorten the construction period.

Normally, asphalt-paved roads are used for long periods of time, and the asphalt material (asphalt) is worn out, and the crushed stones buried inside are uneven, resulting in fatigue failure on the road surface and waviness of the asphalt. In order to prevent this, it is currently necessary to strip off the composite material after a certain period of time and replace it with new composite material.

Recycling plants are also being built to reuse stripped used composite materials to save resources, but progress in promoting the development of the components of composite materials itself has been slow. The actual situation is that the waste materials are still transported to a dedicated recycling processing plant, and after 1), the waste materials have to be transported again to the site, which is a wasteful process.

Describing the most common conventional repair work process for drums, first, a roller' (f) with multiple ultra-hard blades is used.
The first step is to remove the surface of the paved road by moving the IEI, or by heating and melting the road surface with the flame of a burner made of heavy oil. The second step is transporting the wood (waste material) to a designated location for disposal, then the third step is transporting the new material to the location after the removal of the old material, and finally the compensated new material. A fourth step of rolling the material.However, since these steps are adopted, in the first step, there is no direct main method, either by cutting or removing or heating and melting. Labor costs increase because many caregivers are required in addition to the person in charge, and the second step also requires large transportation costs such as the use of dump trucks, and even if old composite materials are reused, it is difficult to recycle them. The transportation costs involved in processing and lifting are extremely expensive, and historically, as in the third process, the cost of transporting the new composite material is so low that it is hard to say that it is cheap.In short, labor costs Not only will there be a large amount of transportation costs, but
Because of this, it requires a long period of labor, and since the construction site requires one-way traffic in that section, there are drawbacks such as traffic congestion in areas with heavy traffic during that period.

The present invention aims to eliminate the problem of the slope as much as possible, and the specific structure of the repair method will be explained in detail below.

In the method of the present invention, a high-frequency electric field is applied to the road surface to generate heat due to dielectric loss in the old composite material on the road surface, and the old composite material is softened. The process is completed by step 2.2 of rolling compaction.

According to this method, first, a high-frequency electric field is irradiated onto the road surface, and in order to utilize so-called electrothermal melting from the inside of the road surface due to dielectric loss, old composite materials (asphalt) that have already been constructed and have been used for a long time are used. ) is moderately heated and softened from the inside, so unlike the conventional local heating with burner flame, the old composite material has a strong carbonization effect, and therefore, the viscosity of the old composite material remains unchanged during construction. Since it can be regenerated and restored to a state with a viscosity close to that of The second thing that was being done. Third. Although each step is completely omitted, it has an excellent effect of fully achieving the intended purpose stated at the beginning of this section.

Of course, the strength of the high-frequency electric field is reduced by 7JI depending on the thickness of the old composite material, and experiments show that the strength of the high-frequency electric field is reduced by 7JI] depending on the thickness of the old composite material, and the experiment shows that the strength of the high-frequency electric field is reduced by approximately 7JI] depending on the thickness of the old composite material. If the output is as high as possible, it is sufficient for practical use.The device can be mounted on a moving vehicle, continuously irradiated, and then compacted. Transportation becomes unnecessary,
Both the number of assistants and the number of construction days can be reduced by at least one-half, construction costs can also be extremely low, and construction can be repeated until the few times when the viscosity of the composite material deteriorates. It is sufficient to supplement the emulsion during melting.

that's all

Claims (1)

[Claims] The method is characterized by comprising a first step of applying a high-frequency electric field to the road surface to soften the aged composite material of the road surface, and a second step of rolling the aged composite material in a softened state. How to repair paved roads.