Durable bridge deck pavement structure suitable for concrete bridge and construction method of durable bridge deck pavement structure

Abstract

The invention discloses a durable bridge deck pavement structure suitable for a concrete bridge and a construction method of the durable bridge deck pavement structure. The durable bridge deck pavement structure is composed of a high-friction anti-sliding strong-adhesion waterproof layer, a pavement lower layer permanent structure layer, an interlayer strong-adhesion layer and a pavement upper layer anti-rutting anti-cracking wear-resistant layer. The high-friction, anti-sliding and strong-adhesion waterproof layer comprises 1.0 kg / m < 2 > of epoxy resin and 55% coverage rate of gravel with the particle size of 4.75 mm; paving a lower permanent structure layer, wherein the thickness of the lower permanent structure layer is 5.5-6.5 cm; in the interlayer strong bonding layer, the asphalt distribution amount is 1.8 + / -0.1 kg / m < 2 >, and the fiber is 100g / m < 2 >; and paving an upper anti-rutting anti-cracking wear-resistant layer with the thickness of 3.5-4.5 cm. The structure provided by the invention has outstanding low-temperature crack resistance, rut resistance and fatigue resistance, has excellent interlayer cohesiveness, can be applied to cement concrete bridge deck pavement, improves the durability of a pavement layer, and prolongs the service life.

Description

technical field [0001] The invention belongs to the field of road and bridge deck pavement engineering, and relates to a durable bridge deck pavement structure suitable for concrete bridges and a construction method thereof. Background technique [0002] Since the 1980s, the mileage of domestic bridge infrastructure construction has advanced by leaps and bounds. Among them, cement concrete bridges with small and medium spans still occupy the mainstream position. Due to the rapid increase in traffic volume, many bridges have suffered serious damage to some parts or even the overall structure, and the maintenance cost in the later period is far greater than the construction cost, which has a negative impact on economic and social development. [0003] At present, the bridge deck pavement structure system in my country consists of "double-layer asphalt pavement + waterproof bonding layer + concrete bridge deck". Bending and tensile stress makes it easier for shear slip to occur...

AI Technical Summary

Problems solved by technology

[0002] Since the 1980s, the mileage of domestic bridge infrastructure construction has advanced by leaps and bounds. Among them, cement concrete bridges with small and medium spans still occupy the mainstream position. Due to the rapid increase in the number of bridges, many bridges have suffered serious damage to some parts or even the overall structure, and the maintenance cost in the later period is much higher than the construction cost, which has a negative impact on economic and social development.

[0004] On the other hand, from the perspective of the bridge deck pavement mixture, because the bridge deck pavement is completely exposed to the outside and is directly affected by environmental factors such as light, wind, and running water, the traditional pavement asphalt mixture is difficult to meet the existing needs

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