Method for repairing road surface damage

Abstract

The invention discloses a method for repairing road surface damage. The road surface repairing material used in the method comprises, by mass, the following raw materials: 35-60 parts of Portland cement, 12-20 parts of high-alumina cement, 10-20 parts of gravel crushed powder, 20-30 parts of fine sand, 12-16 parts of calcium stone powder, 1-2 parts of a water reducing agent, 1-3 parts of latex powder, 2-3 parts of nano titanium dioxide, 1-2 parts of vinyl triethoxysilane, 0.5-1.5 parts of lithium carbonate, 1-1.5 parts of tartaric acid, 1-2 parts of desulfurized gypsum and 0.5-1 part of an advection agent. The method has the advantages of strong bonding property of new and old concrete, high freezing resistance, compression resistance, high bending strength, high temperature resistance andcorrosion resistance, capability of maintaining higher adhesive strength, short repairing time, long service life of a road surface, capability of adsorbing automobile exhaust and reduction of pollution.

Description

technical field [0001] The invention relates to the technical field of road surface repair, in particular to a method for repairing road surface damage. Background technique [0002] With the increase of highway traffic volume, increase of road overload and the acceleration of driving speed, most of the road surface will have cracks and different degrees of damage during the use process, which will affect the smoothness of the road surface and the comfort of driving; if not Carry out road surface repairs in time. Repeated rolling of vehicles will make the situation more and more serious, cracks develop or damage to form depressions, affect driving safety and even cause traffic accidents, and eventually cause the subgrade to settle and scrap the entire road surface. Therefore, cracks and damage on the road surface Timely repairs are required. For cost considerations, the conventional repair method is to remove the damaged concrete and repair it with ordinary concrete of the ...

AI Technical Summary

Problems solved by technology

[0002] With the increase of highway traffic volume, increase of road overload and the acceleration of driving speed, most of the road surface will have cracks and different degrees of damage during the use process, which will affect the smoothness of the road surface and the comfort of driving; if not Carry out road surface repairs in time. Repeated rolling of vehicles will make the situation more and more serious, cracks develop or damage to form depressions, affect driving safety and even cause traffic accidents, and eventually cause the subgrade to settle and scrap the entire road surface. Therefore, cracks and damage on the road surface Need to be repaired in time

For cost considerations, the conventional repair method is to remove the damaged concrete and repair it with ordinary concrete of the same design grade as the original pavement or with a higher grade, but the new concrete shrinks greatly, which may easily lead to shrinkage cracking after repair; ordinary concrete The bonding strength is low, and cracks appear at the junction of the old and new concrete interface; the curing period is long, and the time for open traffic is long

[0003] On the other hand, for roads, there is randomness in small damages and repairs in a certain part of the road. Therefore, when a damage occurs in a certain part of the road, the light ones injure the car tires, etc., resulting in large bumps. Damage to the comfort of the driver and passengers, severe cases lead to unstable driving operation, and even serious traffic accidents due to overturning. For this reason, it is hoped that the damaged parts of the road can be found in time and repaired in time

In the existing technology, road maintenance personnel go to the scene to inspect or know the extreme accidents. These methods have obvious lag in finding problems and pose a potential safety threat to road traffic safety.

[0004] Finally, in the existing technology, for the repaired roads, they are often opened to traffic shortly after the repair, and there is often no necessary inspection of the repaired road information to ensure that the repair is good and the repair is qualified, so there are road safety hazards

[0005] For the problems in the above-mentioned related technologies, no effective solution has been proposed so far. Therefore, this application hopes to provide a brand-new method for repairing road surface damage. This method can intelligently and automatically detect the damage of the road and scan it , to determine whether the road needs to be repaired, and when it is considered that the road needs to be repaired, it will be sent to the road maintenance personnel for maintenance in time, and inspection will be carried out after maintenance to determine whether the road is repaired and reduce potential threats

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