Pavement structure for concrete bridge deck and construction method thereof

Abstract

The invention provides a pavement structure for a concrete bridge deck. The pavement structure is characterized by successively comprising a resin cushion layer, a polymer resin particle bonding layerand an ultra-thin asphalt pavement layer from the concrete bridge deck to the surface layer, wherein the concrete bridge deck and the ultra-thin asphalt pavement layer are bonded through the resin cushion layer and polymer resin particles, and total pavement thickness is 15-25 mm. The pavement structure of the invention has the advantages of thin overall thickness, light weight, good bonding performance among the layers, and high shear strength, and is beneficial for improving the durability of a bridge pavement layer.

Description

technical field [0001] The invention relates to the field of traffic and transportation engineering, in particular to a concrete bridge deck pavement structure and a construction method thereof. Background technique [0002] Bridge deck pavement is an important part of bridge construction and traffic system. In recent years, a large number of cement concrete bridges have been built in our country, but due to insufficient understanding, early diseases of the bridge deck pavement often appear in a short period of time, which greatly reduces the durability of the bridge. Among these early diseases, the passage, wrapping and rutting of the bridge deck pavement are the most serious. Most of the reasons are due to the poor adhesion between the bridge deck and the asphalt mixture and the pavement layers, and the weak shear resistance. Compared with highway pavement, bridge deck pavement has higher requirements on the strength and fatigue durability of the bonding layer and paveme...

AI Technical Summary

Problems solved by technology

Some of the traditional concrete bridge deck pavement schemes directly lay asphalt concrete on the cement concrete pavement layer, and some use ordinary emulsified asphalt as the bonding layer, and the amount of spreading is not strictly controlled, which may easily lead to excessive oil in the bonding layer, thus making the Shear failure of asphalt concrete pavement

The use of modified emulsified asphalt and crushed stone seal layer technology has improved the shear performance of the bridge deck to a certain extent, but it still cannot meet the current lightweight design and environmental load requirements of the bridge.

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