Hot in-place asphalt recycling apparatus and road paving method using same

Abstract

The present invention relates to a hot in-place asphalt recycling apparatus and a road paving method using same. To this end, the hot in-place asphalt recycling apparatus provided with a preheater part and a recycling part, according to the present invention, is characterized in that: the preheater part comprises a support frame on one side, having driving wheels connected to a driving part, a fuel supply part having a fuel tank above the support frame on one side, and an ignition nozzle part provided below the support frame on one side, wherein fuel supplied from the fuel supply part to the ignition nozzle part is ignited so that an asphalt road surface is heated and softened; and the recycling part comprises a support frame on the other side, having driven wheels, a recycling tank provided above the support frame on the other side and to which a recycling additive is inputted, and a road surface removal part provided below the support frame on the other side located at the lower partof a side of the recycling tank, wherein the heated and softened road surface is scraped and fed into an inlet of the recycling tank so as to obtain recycled asphalt mixed with the recycling additive, and the recycled asphalt is outputted via an outlet provided on the other side of the recycling tank. Therefore, the present invention allows the heated and softened road surface to be scraped by the road surface removal part, thereby preventing aggregate inside the surface layer from which the road surface has been removed from breaking, while preventing a change in the gradation of the aggregate from occurring.

Description

technical field [0001] The present invention relates to an on-site heating asphalt regeneration device and a road paving method using the device. In particular, in a state where the asphalt pavement is heated and softened by a preheating unit, the softened road surface is scraped off by a road surface removal unit and supplied to a regeneration tank, Wasted asphalt roads are repaired by putting regeneration additives into a recycling tank supplied with the scraped road surface and stirring, and spreading the stirred recycled asphalt on the scraped road surface and compacting it again. Background technique [0002] In general, after a certain period of time has elapsed after a repair is carried out by the covering method in asphalt paving, the repair is carried out again by the same method, so that the road surface and the covering thickness increase accordingly during this process. [0003] For this reason, there is a risk of accidents due to the decrease in the height of th...

AI Technical Summary

Problems solved by technology

[0003] For this reason, there is a risk of accidents due to the decrease in the height of the vehicle passing through, and the function of the drainage structure is reduced, and there is a problem in keeping the height with the curbstone, the manhole, etc., and there is a height difference with the surrounding structures. , the covering process is also carried out for unnecessary shoulders, which leads to non-economic problems

[0004] As a solution to such problems, most of the problems have been solved in the past by cutting and covering the road surface after cutting and covering it. However, huge engineering costs are required for cutting and re-construction. Environmental pollution caused by asphalt concrete (waste Ascon)

[0005] In addition, as a solution for preventing environmental pollution caused by waste asphalt concrete, an asphalt indirect heating device for the method of laying recycled asphalt on the road surface layer was proposed in Authorized Patent Publication No. 10-0717418 (2007.05.04). In the case of the original asphalt laying method, due to geographical restrictions and traffic jams caused by the secondary (cutting, laying) process, and only 30 to 40% of the waste asphalt concrete materials that are cut are reused, it is important in environmental issues and resource conservation. new problems arise

[0006] In addition, in the process of cutting the surface layer on the road with a road breaker in the asphalt paving method, the aggregate included in the surface layer is crushed to cause a change in particle size. For this reason, it is necessary to provide new aggregate Sometimes there is trouble, and additional work time and costs are required

[0007] In addition, there is also the problem of delaying the operation

Images