Stress absorbing layer for processing asphalt pavement cracks, pavement structure and construction method

Abstract

The invention relates to a stress absorbing layer for processing asphalt pavement cracks, a pavement structure and a construction method. The stress absorbing layer for processing the asphalt pavement cracks is a bag discrete material layer which is arranged between a substrate layer and a pavement layer; the bag discrete material layer consists of bags which contain discrete materials and are laid longitudinally along a road; the used bags are formed by cutting and sewing geotechnical cloth; the discrete materials in the bags are one or more in sand, stone, asphalt pavement milling material, soil, muck and sandy soil; the pavement structure comprises the substrate layer, the pavement layer and the stress absorbing layer; and the stress absorbing layer is arranged between the substrate layer and the pavement layer. According to the absorbing layer for processing the asphalt pavement cracks, the pavement structure and the construction method, the bag discrete materials are adopted as the stress absorbing layer; the reflection cracks formed on the semi-rigid asphalt pavement can be effectively solved; the construction is simple; the materials are cheap and easily-available; and the service life of the pavement can be well prolonged under the condition that the cost is lowered and the labor is saved.

Description

technical field [0001] The invention relates to the field of pavement materials, in particular to a stress absorbing layer for treating asphalt pavement cracks, a pavement structure and a construction method thereof. Background technique [0002] Semi-rigid base asphalt pavement has been used in my country for more than 30 years since the late 1970s and early 1980s. Due to the high strength of the semi-rigid base, it can effectively increase the bearing capacity of the pavement and provide stable support for the surface. , and can give full play to the advantages of the driving comfort of the asphalt surface, so it is widely used in high-grade highways. However, what cannot be ignored is that there are many problems in the wide application of semi-rigid base pavement. Asphalt pavement cracking is still one of the main defects of semi-rigid base asphalt pavement. [0003] Among the many causes of cracking, reflective cracks in the semi-rigid base layer account for a large pr...

AI Technical Summary

Problems solved by technology

However, the transverse cracks, longitudinal cracks, cracks, board corner cracks, and structural joints of the original old pavement will be quickly reflected on the asphalt overlay surface, forming reflective cracks, and causing more serious damage

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