High polymer steel bridge deck pavement structure

Abstract

The invention discloses a high polymer steel bridge deck pavement structure. A high polymer controllable polymerization and topological synthesis technology is adopted. A single-component high polymeris adopted through compatibility, mechanical properties, pavement performance, construction workability comparison. The compatibility design scheme and preparation process of the high-molecular polymer are determined, and then, high-molecular polymer concrete is prepared. According to the high polymer steel bridge deck pavement structure of the invention, a high-molecular polymer concrete bridgedeck pavement material replacing a traditional asphalt-based pavement material is developed; the high-molecular polymer bridge deck pavement structure with the expected service life of more than 20 years is finally formed by verifying the performance and optimizing the design of the pavement structure of the novel material. Pavements and bridge deck pavement materials prepared by adopting polymerresin as a cementing material have the construction temperature range of 5-50 DEG C, and have the characteristics of excellent high-temperature rutting resistance, low-temperature bending resistance,fatigue resistance, excellent wear resistance, excellent water resistance, excellent aging resistance and the like.

Description

technical field [0001] The invention relates to the technical field of road engineering materials, in particular to a high molecular polymer concrete steel bridge deck pavement structure with excellent road performance. Background technique [0002] Steel bridge deck pavement is one of the key technologies in the construction of long-span steel girder bridges. The difficulties faced by steel bridge deck pavement technology include: ① Bonding, anti-slip, waterproof and anti-corrosion problems of the pavement layer on the smooth steel plate; ②The pavement layer is in an unfavorable state of bending and tension strain above the longitudinal ribs and diaphragms of the steel bridge; ③The pavement layer not only requires good high and low temperature stability, but also is suitable for large deformation of the steel bridge. [0003] The structures or methods in the prior art mainly include pouring asphalt concrete pavement, SMA pavement and epoxy resin asphalt concrete pavement. ...

AI Technical Summary

Problems solved by technology

Due to insufficient water tightness (partial segregation) of SMA pavement, it is easy to cause bridge deck damage due to water penetration; pouring asphalt has a void ratio close to zero, has excellent waterproof, anti-aging performance, strong crack resistance, and good followability to steel plates, but Poor high temperature stability, special equipment is required for construction, complex construction and high construction temperature; epoxy resin asphalt pavement has high strength, good integrity, good high temperature performance, and good fatigue resistance, but poor low temperature crack resistance and complicated process , the construction is difficult (high waterproof requirements during construction)

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