Road interface paving method using ascon

Abstract

The present invention relates to a road interface paving method using asphalt concrete.

Description

Technology Field

[0001] The present invention relates to a method for paving a road interface using asphalt concrete. Specifically, the present invention relates to a method for paving a road with asphalt concrete such that no irregularities occur at the interface between a construction area and an unconstructed area. Background Technology

[0002] Asphalt concrete is a mixture of concrete and asphalt, a highly viscous semi-solid or liquid obtained as a byproduct of the petroleum refining process, and is used to pave roads such as automobile roads.

[0003] Because this asphalt has viscosity, when paving the road interface, the asphalt flows out beyond the applied area, and to prevent this, the problem of paving more asphalt than the specified amount occurs.

[0004] The technology forming the background of the present invention is Korean Registered Patent Publication No. 10-2083824. The above registered patent relates to a method for constructing a step difference repair of asphalt pavement. The problem to be solved

[0005] The present invention aims to solve the problems of the aforementioned conventional technology by providing a road interface paving method using asphalt concrete.

[0006] However, the technical problems that the embodiments of the present invention aim to solve are not limited to those described above, and other technical problems may exist. means of solving the problem

[0007] As a technical means for achieving the above-mentioned technical problem, the first aspect of the present invention relates to a road interface paving method using asphalt concrete, comprising the steps of: preparing a road including a first area pre-paved with asphalt concrete and a second area disposed on one side of the first area; placing a support on the other side of the second area so as to be in contact with the asphalt concrete of the first area; heating the interface between the first area and the support to melt the asphalt concrete on one side of the first area; removing the support of the second area; and applying asphalt concrete to the second area; wherein the asphalt concrete melted on one side of the first area is mixed with the asphalt concrete applied on the other side of the second area and then hardened.

[0008] According to one embodiment of the present invention, if the road includes a third area adjacent to the other side of the second area, the method may additionally include, but is not limited to, the step of placing a support in the third area between the step of removing a support in the second area and the step of applying asphalt concrete to the second area.

[0009] According to one embodiment of the present invention, after the step of applying asphalt concrete to the second area, the steps of removing a support in the third area and applying asphalt concrete to the third area may be additionally included, but are not limited thereto.

[0010] According to one embodiment of the present invention, the surface of the support that contacts the asphalt concrete may include a heating wire for melting the asphalt concrete in the first area, but is not limited thereto.

[0011] According to one embodiment of the present invention, the heating wire may be heated to 180°C to 200°C to melt a portion of the asphalt concrete, but is not limited thereto.

[0012] According to one embodiment of the present invention, the step of melting asphalt concrete on one side of the first region may include, but is not limited to, the step of placing a resistor on the asphalt concrete on one side of the first region and applying a voltage of 100 kV to 110 kV to the resistor; the step of irradiating the asphalt concrete on one side of the first region with an intensity of 40 kW to 50 kW with ultrasonic waves; and the step of irradiating the asphalt concrete on one side of the first region with a CO2 laser of 10 kW to 20 kW.

[0013] According to one embodiment of the present invention, the asphalt concrete on one side of the first region and the asphalt concrete on the other side of the second region are mixed and then hardened, thereby suppressing the occurrence of line defects at the interface between the first region and the second region, but is not limited thereto.

[0014] According to one embodiment of the present invention, between the step of mixing the asphalt concrete on one side of the first region and the asphalt concrete on the other side of the second region and the step of curing, a step of adding an additive may be additionally included, but is not limited thereto.

[0015] According to one embodiment of the present invention, the additive may include a paint for distinguishing the first region and the second region, but is not limited thereto.

[0016] According to one embodiment of the present invention, the asphalt concrete may comprise 90 to 95 parts by weight of aggregate and 5 to 10 parts by weight of asphalt binder, but is not limited thereto.

[0017] The means for solving the problem described above are merely exemplary and should not be interpreted as intended to limit the present invention. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and the detailed description of the invention. Effects of the invention

[0018] According to the means for solving the problem of the present invention described above, the road interface paving method using asphalt concrete according to the present invention can prevent linear cracks from occurring at the interface between the paved asphalt concrete and the asphalt concrete paved after construction when additional asphalt concrete is paved on the side of the area paved with asphalt concrete.

[0019] In addition, when marking traffic road markings (center lines, guide lines, etc.) on a road, if the road is paved using conventional methods, the markings easily disappear because special paint is used on the road. However, when constructed using the method according to the present invention, a zone for traffic road markings can be created at the interface of the asphalt concrete in the same way as the asphalt concrete, thereby assisting in the overall management of the road.

[0020] However, the effects obtainable from this invention are not limited to those described above, and other effects may exist. Brief explanation of the drawing

[0021] FIG. 1 is a flowchart of a road interface paving method according to one embodiment of the present invention. FIG. 2 is a flowchart illustrating a road interface paving method according to one embodiment of the present invention. Figure 3 is a schematic diagram showing the problems associated with the conventional road interface paving method. FIG. 4 is a schematic diagram of a road paved by a road interface paving method according to one embodiment of the present invention. FIG. 5 is a schematic diagram of a road paved by a road interface paving method according to one embodiment of the present invention. FIG. 6 is a flowchart illustrating a road paving method according to one embodiment of the present invention. FIGS. 7a and FIGS. 7b are schematic diagrams of a base according to one embodiment of the present invention. Specific details for implementing the invention

[0022] Below, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement them.

[0023] However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly illustrate the present invention in the drawings, parts unrelated to the description have been omitted, and similar parts throughout the specification have been given similar reference numerals.

[0024] Throughout this specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected," but also cases where they are "electrically connected" with other elements interposed between them.

[0025] Throughout the entire specification, when a component is described as being located "on," "on top," "on top," "under," "on bottom," or "on bottom" of another component, this includes not only cases where the component is in contact with the other component but also cases where another component exists between the two components.

[0026] Throughout this specification, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0027] Hereinafter, a road interface paving method using asphalt concrete according to one embodiment and example of the present invention will be described.

[0028] As a technical means for achieving the above-mentioned technical problem, the first aspect of the present invention relates to a road interface paving method using asphalt concrete, comprising the steps of: preparing a road including a first area pre-paved with asphalt concrete and a second area disposed on one side of the first area; placing a support on the other side of the second area so as to be in contact with the asphalt concrete of the first area; heating the interface between the first area and the support to melt the asphalt concrete on one side of the first area; removing the support of the second area; and applying asphalt concrete to the second area; wherein the asphalt concrete melted on one side of the first area is mixed with the asphalt concrete applied on the other side of the second area and then hardened.

[0029] FIG. 1 is a flowchart of a road interface paving method according to one embodiment of the present invention, FIG. 2 is a flowchart showing a road interface paving method according to one embodiment of the present invention, FIG. 3 is a schematic diagram showing problems according to a conventional road interface paving method, and FIG. 4 and FIG. 5 are schematic diagrams of a road paved by a road interface paving method according to one embodiment of the present invention.

[0030] First, a road is prepared comprising a first area already paved with asphalt and a second area located on one side of the first area. In this regard, the first area is an area already paved with asphalt, and the paving of the first area with asphalt may be performed according to a conventional method.

[0031] Next, a support is placed on the other side of the second area so as to come into contact with the asphalt of the first area.

[0032] According to one embodiment of the present invention, the support may be an H-beam, but is not limited thereto.

[0033] An H-beam is a material having an H-shaped cross-section and is structured to include flanges spaced apart from each other at the top and bottom, and a web positioned between the two flanges to connect the two flanges. When an H-beam is used as a support for the present invention, one of the flanges is positioned in one direction of the first zone, and the other of the flanges is positioned in the other direction of the second zone.

[0034] According to one embodiment of the present invention, before placing a support on the other side of the second area, a portion of the asphalt in the first area may be removed, but is not limited thereto.

[0035] The asphalt concrete of the first area above is hardened after paving on a road, but during the hardening process, some of the asphalt concrete flows down due to the viscosity of the asphalt constituting the asphalt concrete, forming a cross-section such as a trapezoid as shown in the center of Fig. 3. When a support is placed in this state, the contact surface area between the asphalt concrete of the first area and the support may be small. Since the support may not be fixed in the process described later if the support is tilted or the cross-section of the support itself is tilted to address this, a portion of the asphalt concrete of the first area may be removed so that the cross-section of the asphalt concrete of the first area becomes rectangular.

[0036] According to one embodiment of the present invention, the surface of the support that contacts the asphalt concrete may include a heating wire for melting the asphalt concrete in the first area, but is not limited thereto.

[0037] According to one embodiment of the present invention, the heating wire may be heated to 180°C to 200°C to melt a portion of the asphalt concrete, but is not limited thereto.

[0038] Next, the interface between the first region and the base is heated to melt the asphalt on one side of the first region.

[0039] According to one embodiment of the present invention, the step of melting asphalt concrete on one side of the first region may include, but is not limited to, the step of placing a resistor on the asphalt concrete on one side of the first region and applying a voltage of 100 kV to 110 kV to the resistor; the step of irradiating the asphalt concrete on one side of the first region with ultrasonic waves having an intensity of 40 kW to 50 kW; and the step of irradiating the asphalt concrete on one side of the first region with a CO2 laser having an intensity of 10 kW to 20 kW.

[0040] Asphalt concrete applied to the interface between the first region and the base is partially melted by the heating element, resistor, ultrasound, and CO2 laser of the base. Specifically, the heating element of the base heats the hardened asphalt concrete to a sufficient temperature (180°C to 200°C). If heated to a temperature exceeding 200°C, it is difficult to control the range in which the asphalt concrete melts, and if heated to a temperature below 180°C, the melting speed of the asphalt concrete is slow. Additionally, the upper layer of the asphalt concrete can be melted by applying voltage to the resistor to generate resistance heat and ultrasound, and the melting range can be limited by irradiating a laser onto the asphalt concrete applied to one side.

[0041] At this time, if a voltage of less than 100 kV, an ultrasonic wave of less than 40 kW, and a CO2 laser of less than 10 kW are used, the asphalt concrete is not melted, and if a voltage of more than 110 kV, an ultrasonic wave of more than 50 kW, and a CO2 laser of more than 20 kW are used, the melting speed is too fast and the asphalt concrete on one side of the first area is melted more than necessary.

[0042] Next, the support of the second area is removed.

[0043] Next, asphalt concrete is applied to the second area mentioned above.

[0044] The removal of the support base and the application of asphalt in the second area above may be performed simultaneously, but are not limited thereto.

[0045] The process of applying asphalt concrete to the second area above refers to the period after the asphalt concrete on one side of the first area has melted and before it has hardened. In this regard, although the asphalt concrete in the first area may flow downward when melted, since asphalt concrete basically has high viscosity and requires a long time to harden, if asphalt concrete is applied to the second area immediately after melting the asphalt concrete in the first area, the melted asphalt concrete in the first area and the asphalt concrete applied to the second area can be mixed and hardened together.

[0046] According to one embodiment of the present invention, the asphalt concrete on one side of the first region and the asphalt concrete on the other side of the second region are mixed and then hardened, thereby suppressing the occurrence of line defects at the interface between the first region and the second region, but is not limited thereto.

[0047] If asphalt is applied to the second area without melting one side of the first area, a linearly long defect may occur at the interface between the first area and the second area. Additionally, if asphalt is applied to the second area before the first area is completely cured, the asphalt from the first area may adhere to the vehicle wheels used for asphalt application, and if asphalt is applied with a gap between the first area to prevent this, additional problems such as the formation of a gap may occur.

[0048] The present invention allows for paving asphalt concrete on a road two or more times without causing linear defects between the paving areas, and minimizes the cost of removing asphalt concrete that adheres to the asphalt application vehicle.

[0049] According to one embodiment of the present invention, between the step of mixing the asphalt concrete on one side of the first region and the asphalt concrete on the other side of the second region and the step of curing, a step of adding an additive may be additionally included, but is not limited thereto.

[0050] According to one embodiment of the present invention, the additive may include a paint for distinguishing the first region and the second region, but is not limited thereto.

[0051] The above additive may include a colored material for traffic road marking at the interface between the first region and the second region.

[0052] The above-mentioned base is an object having a linear or curved cross-section made of a material, such as metal or ceramic, that is not damaged by high-temperature asphalt. In the process of placing the base in the second zone and removing the base after the asphalt in the first zone has melted, a portion of the molten asphalt may be removed together with the base while adhering to the surface of the base. To this end, the process of removing the base may include the steps of: heating the base; and vibrating the base. At this time, the heating temperature of the base is 120°C to assist in keeping the molten asphalt in a molten state, and vibrating the base separates the base from the molten asphalt.

[0053] The vibration of the above-mentioned base can be achieved by irradiating the above-mentioned base with ultrasound. At this time, the intensity of the ultrasound is 1 m of the base 2 The power is 10 kW to 20 kW per unit; if it is less than 10 kW, no separation occurs, and if it is greater than 20 kW, the hardened asphalt may be destroyed.

[0054] The molten asphalt attached to the surface of the base and the base can be smoothly separated by the above vibration.

[0055] According to one embodiment of the present invention, if the road includes a third area adjacent to the other side of the second area, the method may additionally include, but is not limited to, the step of placing a support in the third area between the step of removing a support in the second area and the step of applying asphalt concrete to the second area.

[0056] According to one embodiment of the present invention, after the step of applying asphalt concrete to the second area, the steps of removing a support in the third area and applying asphalt concrete to the third area may be additionally included, but are not limited thereto.

[0057] Although the third zone is not separately indicated in FIGS. 1 to 4, when dividing the road into n zones along the length direction (6 o'clock to 12 o'clock direction in FIG. 1), the leftmost zone can be called the first zone, the zone adjacent to the first zone can be called the second zone, the zone adjacent to the second zone can be called the third zone, ... the zone adjacent to the (n-1)th zone can be called the nth zone.

[0058] According to one embodiment of the present invention, after the step of applying asphalt concrete to the second zone, the steps of removing a support in the third zone and applying asphalt concrete to the third zone may be additionally included, but are not limited thereto. At this time, the support placed in the third zone may be the same as the support removed in the second zone, and the steps of removing the support in the third zone and applying asphalt concrete may proceed sequentially or in reverse order.

[0059] Referring to FIGS. 2 and 3, the road interface paving method according to the present invention includes the steps of preparing a road (100) in which asphalt concrete (111) is applied to a first zone and asphalt concrete is not applied to a second zone (120), placing a support (200) in the second zone so as to be in contact with one side of the asphalt concrete (111) of the first zone, melting the asphalt concrete of the first zone adjacent to the support, removing the support, and then applying asphalt concrete to the second zone. At this time, the asphalt concrete of the first zone and the asphalt concrete of the second zone are identical in physical properties, and the distinction of the patterns in FIGS. 2 and 3 is for illustrative purposes.

[0060] FIG. 6 is a flowchart illustrating a road paving method according to one embodiment of the present invention. Referring to FIG. 6, a step of placing an H-beam shaped support (200) on one side of a first section of asphalt concrete (111) that has been applied in advance, melting a portion of the first section of asphalt concrete through the H-beam shaped support, removing the support, and then applying asphalt concrete to a second section.

[0061] Generally, asphalt concrete is a mixture in which concrete composed of aggregates such as sand or gravel is combined with asphalt. Since asphalt itself is a viscous semi-solid or liquid and takes a certain amount of time to harden, if the entire road is not paved with asphalt concrete at once, some of the asphalt concrete paved in the first section may flow down. In this case, if the flowed-down asphalt concrete is not removed, the area may bulge out when asphalt concrete is paved in the second section, which may cause shaking of the vehicle body while driving on the road.

[0062] According to one embodiment of the present invention, the step of applying asphalt concrete to the second zone may include, but is not limited to, the step of placing graphite powder at a concentration of 0.1 g / cm2 to 0.5 g / cm2 on the second zone; the step of applying asphalt concrete at a temperature of 130°C to 160°C on the second zone coated with graphite powder; and the step of curing the applied asphalt concrete.

[0063] The graphite powder mentioned above is intended to improve the physical properties of paved asphalt concrete and assist in hardening. It was confirmed that if the graphite powder is placed at a concentration of less than 0.1 g / cm2, the effect of the graphite powder does not appear, and if it is placed at a concentration exceeding 0.5 g / cm2, crumbs are generated in the paved asphalt concrete and the strength is slightly lower compared to when it is placed at a concentration of 0.5 g / cm2 or less.

[0064] According to one embodiment of the present invention, the step of curing the asphalt concrete may include, but is not limited to, the step of applying a voltage of 10 kV to 20 kV to the asphalt concrete and the step of irradiating ultrasonic waves having an intensity of 10 kW to 20 kW.

[0065] If a voltage lower than 10 kV is applied to the applied asphalt, the strength of the hardened asphalt decreases, and if a voltage exceeding 20 kV is applied, some parts of the asphalt may be excessively heated and softened, which may result in a decrease in strength.

[0066] When asphalt concrete is applied to the second zone coated with the graphite powder and voltage is applied, the strength of the asphalt concrete can be improved by the graphite powder, but it was confirmed that the strength improvement effect is negligible when the amount of graphite powder is large (more than 0.5 g / cm2).

[0067] In addition, when ultrasonic waves exceeding 20 kW are applied to harden asphalt, the proportion of lighter components of the asphalt moving upward increases, leading to increased damage to the asphalt during road driving.

[0068] According to one embodiment of the present invention, the graphite powder may be evenly dispersed throughout the asphalt concrete by the ultrasound, but is not limited thereto.

[0069] Since the above asphalt concrete has viscosity, if it is left to harden by cooling in the air without any measures, a problem may occur where heavy components are pushed downward by gravity. This implies that the distribution of the lower and upper parts of the asphalt concrete differs, potentially leading to a change in the strength of the asphalt concrete. To prevent this problem, the above asphalt concrete is applied and ultrasonic waves are applied, thereby causing some of the graphite powder and heavy components of the asphalt concrete to move upward by the ultrasonic waves and assisting in hardening through vibration.

[0070] According to one embodiment of the present invention, the asphalt concrete may comprise 90 to 95 parts by weight of aggregate and 5 to 10 parts by weight of asphalt binder, but is not limited thereto.

[0071] According to one embodiment of the present invention, the asphalt concrete may additionally include 1 to 5 parts by weight of a physical property improver, but is not limited thereto.

[0072] That is, the above asphalt concrete may comprise 90 to 95 parts by weight of aggregate, 5 to 10 parts by weight of asphalt binder, and 1 to 5 parts by weight of a physical property improver, but is not limited thereto.

[0073] According to one embodiment of the present invention, the physical property enhancer may comprise 5 parts by weight of carbon nanotubes, 10 parts by weight of silica, 10 parts by weight of rubber powder, 10 parts by weight of SBS (Styrene-Butadiene-Styrene), 5 parts by weight of calcium hydroxide, and 10 parts by weight of quartz, but is not limited thereto.

[0074] The carbon nanotubes mentioned above can improve the strength of the asphalt concrete, similar to the graphite powder mentioned above. Additionally, the rubber powder can regulate the amount of shock absorption by increasing the fluidity of the underside of the asphalt concrete, and the quartz can contribute to improving the strength of the asphalt concrete by being rearranged within the asphalt concrete by ultrasound.

[0075] FIGS. 7A and 7B are schematic diagrams of a support according to one embodiment of the present invention. The support of FIGS. 7A and 7B includes an anchor, a scale, and an inclined portion, but the support used in the road paving method may be an H-beam without an anchor, a scale, or an inclined portion, or an H-beam additionally including the structure of FIG. 7A or 7B.

[0076] In FIGS. 7a and 7b, A is an anchor embedded inside the road, and B is a scale for measuring the thickness of the asphalt applied on the base (200). Additionally, C in FIG. 7b may be a part for applying the asphalt as a boundary line when applying the asphalt.

[0077] The present invention is to be explained in more detail through the following examples, but the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0078] [Example 1]

[0079] The 100 m road was divided into three sections in the width direction, and were subsequently named Section 1, Section 2, and Section 3 from left to right. In this case, Section 1 was coated with asphalt and hardened.

[0080] Next, a support was placed in the second zone so as to be in contact with one side of the asphalt concrete in the first zone, a voltage of 105 kV was applied to the support, 45 kW of ultrasonic waves were irradiated onto the asphalt concrete in contact with the support, and a CO2 laser with an output of 15 kW was irradiated to melt a portion of the asphalt concrete in contact with the support. Subsequently, the support was heated to 120°C and ultrasonic waves with an intensity of 15 kW were irradiated to separate the support from the molten asphalt concrete, and the support was removed from the second zone.

[0081] Next, asphalt was applied to the second zone.

[0082] At this time, the second zone is coated with graphite powder at a density of 0.3 g / cm2 and uniformly arranged, and asphalt concrete at 140°C is applied and cured. The asphalt concrete applied to the second zone comprises 90 to 95 parts by weight of aggregate, 5 to 10 parts by weight of asphalt binder, and 1 to 5 parts by weight of a physical property enhancer. The physical property enhancer comprises 5 parts by weight of carbon nanotubes, 10 parts by weight of silica, 10 parts by weight of rubber powder, 10 parts by weight of SBS (Styrene-Butadiene-Styrene), 5 parts by weight of calcium hydroxide, and 10 parts by weight of quartz.

[0083] In addition, the hardening condition of the asphalt concrete is to apply a voltage of 15 kV to the asphalt concrete while simultaneously irradiating it with 15 kW of ultrasonic waves.

[0084] [Comparative Example 1]

[0085] It is identical to Example 1, except that the heating or ultrasonic irradiation process was omitted when removing the base in the second zone.

[0086] [Comparative Example 2-1]

[0087] Asphalt concrete was applied in the same manner as in Example 1, but with the amount of graphite powder applied to the second zone, etc. adjusted.

[0088] [Comparative Example 2-2]

[0089] It is the same as Example 1, but the hardening conditions of the asphalt concrete were adjusted.

[0090] [Comparative Example 3]

[0091] It is identical to Example 1, except that CNT, rubber powder, and quartz were not used as property enhancers.

[0092] [Comparative Example 4]

[0093] It is identical to Example 1, but the asphalt melting conditions of the first zone were changed.

[0094] [Experimental Example 1]

[0095] Example 1 and Comparative Example 1 were compared.

[0096] Unlike Example 1, Comparative Example 1 may have molten asphalt attached when removing the base, and due to the viscosity between the molten asphalt, removing the base may require a lot of force and time. However, when removing the base, if the base is heated and ultrasonically vibrated, the molten asphalt and the base can be cleanly separated, making it easy to remove the base.

[0097] [Experimental Example 2]

[0098] Example 1, Comparative Example 2-1, and Comparative Example 2-2 were compared. Specifically, the graphite powder was 0.1 g / cm³ 2 When placed at a density less than 0.5 g / cm², the strength was lower compared to Example 1. 2 It was confirmed that if applied in excess of [value], the strength of the paved asphalt concrete actually decreased. In addition, when a voltage lower than 10 kV was applied to the coated asphalt concrete, the strength was lower compared to Example 1, and when a voltage exceeding 20 kV was applied, it was confirmed that a problem occurred where some parts of the asphalt concrete were excessively heated and softened.

[0099] In addition, it was confirmed that when ultrasonic waves with a strength of 21 kW are applied to the asphalt, the proportion of the lighter components of the asphalt moving upward increases, leading to increased damage to the asphalt during road driving.

[0100] [Experimental Example 3]

[0101] Example 1 and Comparative Example 3 were compared. Specifically, it was confirmed that when asphalt concrete was paved and cured without CNT and quartz, the strength was measured to be low, and when asphalt concrete was paved without rubber powder, the durability of the asphalt concrete was reduced.

[0102] [Experimental Example 4]

[0103] Example 1 and Comparative Example 4 were compared. Specifically, when a voltage of 90 kV was applied to the base to melt a portion of the asphalt in the first zone, or when ultrasonic waves with an intensity of 35 kW were applied to the asphalt, or when a CO2 laser with a 5 kW intensity was applied, the asphalt did not melt and took a long time; and when a voltage of 140 kV was applied, or when ultrasonic waves with a 60 kW intensity were used, or when a CO2 laser with a 25 kW intensity was used, it was difficult to control the melting range of the asphalt.

[0104] In addition, when asphalt was applied to the second zone without melting the asphalt, linear defects occurred at the interface between the first and second zones, requiring additional work to fill the defects.

[0105] A voltage of 105 kV was applied, 45 kW of ultrasonic waves were irradiated onto the asphalt in contact with the support, and a 15 kW output CO2 laser was irradiated to melt a portion of the asphalt in contact with the support.

[0106] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical concept or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0107] The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and the concept of equivalents thereof should be interpreted as being included within the scope of the present invention.

Claims

Claim 1 A method for paving a road interface using asphalt concrete comprises: a step of preparing a road including a first area pre-paved with asphalt concrete and a second area disposed on one side of the first area; a step of placing a support on the other side of the second area so as to be in contact with the asphalt concrete of the first area; a step of heating the interface between the first area and the support to melt the asphalt concrete on one side of the first area; a step of removing the support of the second area; and a step of applying asphalt concrete to the second area, wherein the asphalt concrete melted on one side of the first area is mixed with the asphalt concrete applied on the other side of the second area and then hardened, and the surface of the support in contact with the asphalt concrete includes a heating wire for melting the asphalt concrete pre-paved in the first area, and the step of melting the asphalt concrete on one side of the first area comprises a step of placing a resistor on the asphalt concrete on one side of the first area and applying a voltage of 100 kV to 110 kV to the resistor. A road interface paving method comprising: a step of irradiating an asphalt concrete on one side of the first region with an ultrasonic wave having an intensity of 40 kW to 50 kW; and a step of irradiating an asphalt concrete on one side of the first region with a CO2 laser having an intensity of 10 kW to 20 kW; wherein the asphalt concrete on one side of the first region and the asphalt concrete on the other side of the second region are mixed and then hardened, thereby suppressing the occurrence of line defects occurring at the interface between the first region and the second region, and the step of removing a support in the second region includes a step of heating the support and a step of vibrating the support. Claim 2 A road interface paving method according to claim 1, wherein, if the road includes a third area adjacent to the other side of the second area, the method further comprises the step of placing a support in the third area between the step of removing a support in the second area and the step of applying asphalt concrete to the second area. Claim 3 A road interface paving method according to claim 2, further comprising, after the step of applying asphalt concrete to the second area, the step of removing a support in the third area and the step of applying asphalt concrete to the third area. Claim 4 delete Claim 5 A road interface paving method according to claim 1, wherein the heating wire is heated to 180°C to 200°C to melt a portion of the asphalt concrete. Claim 6 delete Claim 7 delete Claim 8 A road interface paving method according to claim 1, wherein the step of adding an additive between the step of mixing the asphalt concrete on one side of the first region and the asphalt concrete on the other side of the second region and the step of curing. Claim 9 A road interface paving method according to claim 8, wherein the additive comprises a paint for distinguishing the first region and the second region. Claim 10 A road interface paving method according to claim 1, wherein the asphalt concrete comprises 90 to 95 parts by weight of aggregate and 5 to 10 parts by weight of asphalt binder.

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