Highway, pavement structure and construction method of highway pavement

Abstract

The invention discloses a highway pavement structure. The highway pavement structure is characterized in that a pavement middle layer is arranged above a pavement lower layer; a pavement upper layer is arranged above the pavement middle layer; an FRP (fiber reinforced polymer) grid mesh 3 is arranged on the top surface of the pavement lower layer; an FRP waterproof layer is arranged on an upper surface formed by the FRP grid mesh 3 and the top surface of the pavement lower layer. The invention also provides a highway comprising the above pavement structure. Furthermore, the invention also provides a construction method of the highway pavement. The construction method comprises the following steps of: paving and compacting a graded macadam subbase after completing subgrade flattening and compaction; paving and compacting a cement stabilized macadam base after installing an FRP grid mesh 8; pouring concrete on the pavement lower layer after installing the FRP grid mesh 3; pasting the FRP waterproof layer; paving and compacting asphalt concrete on the pavement middle layer and pavement upper layer. The highway, the pavement structure and the construction method have the beneficial effects that uneven settlement and softening caused by permeation of water into the subgrade can be avoided by the FRP waterproof layer and the integrity and the strength of the pavement can be improved by arranging the FRP grid meshes, so that the pavement flatness can be ensured.

Description

technical field [0001] The invention relates to the technical field of civil engineering, and more specifically, relates to a highway, a road surface structure, and a construction method for a highway pavement. Background technique [0002] The highway pavement is the uppermost structural layer of the highway, and the car runs at high speed on the highway pavement. In order to ensure the smoothness of the car, the smoothness of the road surface is very important. [0003] figure 1 It is a structural schematic diagram of an expressway or a first-class road pavement structure in the prior art. The pavement is asphalt concrete structure. From bottom to top: 20 cm thick graded crushed stone subbase 01, 35 cm thick cement stabilized crushed stone base 02, 6 mm thick emulsified asphalt slurry dust seal 03, 8 cm thick AC-25 asphalt concrete Material pavement lower layer 04, 6 cm thick AC-16 modified asphalt concrete material pavement middle layer 05 and 4 cm thick AC-13 modifie...

AI Technical Summary

Problems solved by technology

[0004] The main defects or deficiencies of the prior art are as follows: the waterproof effect of the 6 mm thick emulsified asphalt slurry dust seal 03 on the upper part of the 35 cm thick cement stabilized macadam base 02 is poor, and the road surface water will penetrate into the lower subgrade. It is easy to cause uneven settlement or softening of the roadbed, which in turn leads to cracking or damage of the cement-stabilized gravel base 02, and uneven settlement, cracking or damage of the asphalt concrete structural layer

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