An enhanced composite functional pavement structure and its laying method

Abstract

The invention provides an enhanced composite functional pavement structure and a laying method thereof. The pavement structure comprises: an upper layer of a mixture, a first polyurethane bonding layer, a middle surface layer of a mixture, and a second polyurethane bonding layer arranged sequentially from top to bottom. layer, the lower layer of the mixture; the upper layer of the mixture is PERS-13, the upper layer of the anti-scattering polyurethane porous elastic mixture; the first polyurethane adhesive layer is a slow-reaction two-component polyurethane adhesive layer; the middle layer of the mixture is The surface layer of the polyurethane porous elastic mixture is PERS‑20; the second polyurethane adhesive layer is a slow-response two-component polyurethane stress absorption layer; the lower layer of the mixture is the lower layer of the polyurethane porous elastic mixture PERS‑25. The pavement structure provided by the invention has strong compound functions such as drainage, deicing, noise reduction, etc., can effectively prevent the problem of debonding of the porous elastic mixture surface layer, and prolong the service life of the pavement structure.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to an enhanced composite functional pavement structure and a laying method thereof. Background technique [0002] At present, the commonly used functional pavements mainly include drainage pavement, low-noise pavement, and deicing pavement. With a large void ratio of 18-25%, porous asphalt pavement can achieve good drainage effect and noise reduction function. High-elastic asphalt pavement, salt-storing asphalt pavement, heat-generating snow-melting pavement, etc. can realize winter deicing and snow-melting functions through different technical paths . However, the current functional pavement technology usually can only achieve one or two functions, and the functions are relatively single. For areas with rainy summers, icing in winters and high noise reduction requirements, the existing pavement structure is difficult to meet drainage, deicing, Noise reduction and other functions. ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an enhanced composite functional pavement structure, which solves the problem of relatively single functionality in the existing functional pavement technology

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