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Novel process for pavement patching

A technology of road surface repair and new technology, which is applied in the field of traffic road maintenance, can solve the problems of high price of seam filling machine and asphalt joint glue, low temperature of fractured end surface, and easily damaged road surface again, so as to reduce the cost of road surface maintenance, The effect of small impact on the climate environment and low cost

Inactive Publication Date: 2009-07-29
关莹 +2
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Problems solved by technology

The disadvantages of the current construction technology are: the combination of the cracked section of the asphalt concrete pavement and the joint glue is completely determined by the bonding strength of the joint glue after heating. After the joint glue is injected, it is cooled and solidified, and the operation is completed
After the asphalt joint glue is poured into the gap, the bond with the broken end surface of the road surface is not firm, and the road surface is easily damaged again under the repeated rolling of the wheels of the driving vehicle, and the price of the joint filling machine and the asphalt joint glue is relatively high

Method used

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  • Novel process for pavement patching
  • Novel process for pavement patching
  • Novel process for pavement patching

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Embodiment Construction

[0016] The best embodiment of the present invention is described below through specific embodiments.

[0017] A new pavement repair process, which uses the principle of laser welding. The laser beam 8 generates a laser beam to heat the pavement crack 2 and the filled joint filling material 4 to 100-200°C, preferably 170°C. The asphalt melts into a liquid state, so that the crack end face 1 and the joint filling material 4 are melted into one body. During the heating process, the laser radiation heating point is continuously moved forward with the joint filling cart 5 for continuous operation to complete the joint filling operation.

[0018] The laser filling machine is equipped with a generator 9, a laser 8, a laser transmission fiber, a filling cart 5, and a safety protection device. The generator 9 and the laser 8 are installed on the car. The laser beam output by the laser 8 is guided into the optical fiber, and the optical fiber output The laser beam is expanded to form a ligh...

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Abstract

The invention relates to a new method for patching pavement. Crack in pavement and fillers filled therein are heated firstly to melt asphalt thereof into liquid state so that the two end surfaces of the crack and the fillers are melted integrally with a heating temperature of 100-200 DEG C. The invention solves the problem that the traditional pavement patching glue and the end surfaces of the crack are not firmly spliced, and has the advantages of simple and convenient operation, good crack pouring quality, low cost, and energy-saving as well as environmental protection.

Description

Technical field [0001] The invention relates to the technical field of traffic road maintenance, in particular to a new pavement repair process. Background technique [0002] Cracks on asphalt concrete pavements are a common problem on highways. According to the maintenance specifications, pavement cracks must be grouted every spring and autumn. In the current road pavement maintenance, the filling and repairing of cracks in the asphalt concrete pavement mostly involves heating the asphalt filling glue to a liquid state (150-170°C), and then using a filling machine to pour the asphalt filling glue into the pavement cracks. After filling the joint glue, it will gradually cool down to complete the joint filling operation of the road cracks. The disadvantages of the current construction technology are: the combination of the fractured section of the asphalt concrete pavement and the joint glue is completely determined by the bonding strength of the joint glue after heating. Because ...

Claims

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Application Information

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IPC IPC(8): E01C23/06E01C23/09
Inventor 关莹闫锋杜鹏远李业秋石文峰高强
Owner 关莹
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