Method of continuously repaving asphalt mixture layer of paved road in-situ and self-propelled vehicle system therefor

Abstract

Provided is a method of continuously repaving the asphalt mixture layer of a paved road in-situ while driving a self-propelled vehicle system. Also provided is a self-propelled vehicle system for the method. The method comprises: a step in which the surface of an asphalt mixture layer is heated to conduct the heat to a given depth and soften the layer down to the depth; a step in which the asphalt mixture layer is scraped down to the given depth to give an old asphalt mixture; a step in which a large-diameter aggregate having been stored is added to the old asphalt mixture; a step in which the old asphalt mixture to which the large-diameter aggregate has been added is converted to a reinforced asphalt mixture; a step in which the reinforced asphalt mixture is spread on the residual asphalt mixture layer and the surface is leveled to form a reinforced layer having a higher coefficient of elasticity than the residual layer; a step in which an asphalt mixture for a new surface layer which has been stored is placed on the reinforced layer; a step in which the asphalt mixture for a new surface layer is spread and leveled to form a new surface layer; and a step in which the reinforced layer and the new surface layer are compacted, in the hot state, and united with each other.

Description

technical field [0001] The present invention relates to a method for continuously relaying a layer of asphalt mixture for paving a road surface and a self-propelled vehicle system for use in the method. Specifically, the surface of the asphalt mixture layer is heated, the heat is penetrated to a depth beyond the boundary surface between the base layer and the surface layer of the asphalt mixture layer or the depth of the asphalt mixture layer corresponding to the depth is softened, and it is loosened To form an old asphalt mixture, add large-sized aggregates or aggregates with asphalt attached to the old asphalt mixture, or any new material in the asphalt mixture with a particle size distribution containing large-sized aggregates, by mixing them And form the reinforced asphalt mixture, and then spread the reinforced asphalt mixture on the plowed asphalt mixture layer and the remaining remaining layer, so that the middle layer containing large-grained aggregates with an elastic...

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Problems solved by technology

And even in this case, the depth of the existing asphalt mixture layer that can be repaired is limited to 5cm to 6cm, and its depth is still limited.

In any case, the life of the regenerated paved road is only temporary, and the depth of the boundary surface between the base layer and the surface layer of the asphalt mixture layer beyond the paved road or a depth of 6 to 10 cm from the road surface corresponding to this depth is very low. It is difficult to completely change the service life of pavement through continuous regeneration. So far, paved roads of this nature and state can only rely on, for example, reconstruction methods.

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