A kind of impermeability repair method of partially damaged asphalt pavement

Abstract

The invention discloses an impermeability repair method for local damage on asphalt pavement, which belongs to the field of road surface repair. It relates to an impermeability repair method for local damage on asphalt pavement. When repairing local damage, an impermeable ball net is laid on cement slurry And between the asphalt layers, during the rolling and compacting process, on the one hand, the pre-crushed balls on the trailing anti-seepage balls are crushed under force, and the waterproof coating inside penetrates into the lining layer and fills the lining layer. In this way, a layer of high-strength waterproof interlayer with inner lining is formed, which makes the repaired pavement more impermeable, and effectively avoids the strength damage caused by water seepage inside the pavement, which leads to the deterioration of the overall pressure resistance. Significantly prolong the service life of the repaired pavement. On the other hand, the reinforcing tail and the extension wires on it are embedded in the cement slurry, which can effectively improve the internal connection strength, making it difficult to cause large-scale cracks after heavy pressure. Cracks, further improving the strength of the repaired asphalt pavement.

Description

technical field [0001] The invention relates to the field of pavement repair, and more specifically relates to a method for repairing local damage and impermeability of asphalt pavement. Background technique [0002] Asphalt pavement is various types of pavement formed by paving and rolling asphalt concrete. Asphalt concrete is a mixture formed by fully mixing asphalt materials with a certain viscosity and appropriate dosage and mineral aggregates of a certain grade. Asphalt concrete, as an asphalt pavement material, has to bear the repeated action of running vehicle loads and the long-term impact of environmental factors during its use. Therefore, while asphalt concrete has a certain bearing capacity, it must also have good durability against natural factors. That is to say, it should be able to show sufficient stability in high temperature environment, crack resistance in low temperature condition, good water stability, long-lasting anti-aging and good anti-skid property...

AI Technical Summary

Problems solved by technology

[0003] During long-term use, under long-term heavy pressure, and in heavy rainfall weather, it is difficult to discharge water from the drainage system in time, especially in relatively low-lying places, where the water accumulation is serious, and water seeps into Below the pavement, under long-term action, the strength of the asphalt pavement is easily affected, resulting in local damage to the asphalt pavement

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