Road crack filling and repairing process

Abstract

The invention discloses a road crack filling and repairing process. The key point of the technical scheme is as follows: the road crack filling and repairing process comprises the following steps: cutting and slotting, namely cutting and slotting a pavement according a standard operation for damaged cracks of the pavement, wherein the slot width is 1.3-3cm, the slot depth is smaller than 3cm, paving dry pebbles in the lower part of the pavement when the slot width is 3-6cm, and carrying out glue filling and cap sealing in 2cm in the upper part, wherein a dustproof operation is adopted in the process; filling crack cleaning, namely cleaning a filling slot by high pressure hot wind of a heat spray gun, wherein the temperature of the heat spray gun is set at 1500 DEG C, the pressure of an airsource is 0.2-0.5MPa, and the filling crack cleaning speed is 10m / min in summer and 5m / min in winter; carrying out crack filling operation, namely injecting filling glue into the filling slot througha filling machine, and controlling the height of the filling layer to be not lower than about 0.5cm of the pavement; and cooling and maintaining, namely after the filling operation, paving dry sand,lime powder and the like to the surface of the filling material during maintenance and vibrating, compacting and floating the pavement, wherein the road can come into use within about 10-20min. The road crack filling and repairing process can be used for repairing micro cracks of the pavement quickly, so that the service life of the road is prolonged, and the maintenance cost is lowered.

Description

【Technical field】 [0001] The invention relates to the technical field of road maintenance and repair, in particular to a road gap filling and repairing process. 【Background technique】 [0002] All kinds of cracks on the cement pavement will affect the appearance of the road and reduce the service life of the pavement. There are problems and other problems that cause cracks in the road surface, which in turn causes water on the road to enter the base layer through the gaps. It is possible that the water will take the soil layer of the subgrade, and it may also form mud with the soil layer, which will be squeezed out when the vehicle rolls over the gaps in the road surface. Cause road surface damage and shorten the service life of the road surface. In today's increasingly noisy traffic conditions, it may further deteriorate, and the long-term road repair project will cause traffic congestion, and the dust in the construction will pollute the environment, and repeated repairs ...

AI Technical Summary

Problems solved by technology

[0002] All kinds of cracks on the cement pavement will affect the appearance of the road and reduce the service life of the pavement. There are problems and other problems that cause cracks in the road surface, which in turn causes road surface water to enter the base layer through the gaps. It is possible that the water will take the soil layer of the subgrade, and it may also form mud with the soil layer, which will be squeezed out when the vehicle rolls over the gaps in the road surface. Cause road surface damage, shorten the service life of the road surface, in today's increasingly noisy traffic conditions, it may further deteriorate, and the long-term road repair project will cause traffic congestion, dust during construction, etc. will pollute the environment, and repeated repairs It cannot be maintained for a long time, which will increase the cost of road maintenance

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