Bituminous mixture laying equipment capable of protecting bonding layer and application method thereof

Abstract

The invention relates to bituminous mixture laying equipment capable of protecting a bonding layer, which comprises a bituminous mixture receiving hopper, a power system, a control station, a bituminous mixture distributor, a traveling mechanism, a bituminous mixture conveyor, a bonding layer material storage tank, an ironing device, a bonding layer material spraying mechanism, a bonding layer material pumping mechanism and a heater, wherein a heat conducting oil pipeline is connected with the heater; the bonding layer material storage tank is connected with the bonding layer material pumpingmechanism which is also connected with the bonding layer material spraying mechanism; the bonding layer material spraying mechanism is positioned below a machine frame and in front of the bituminous mixture distributor; and the ironing device is arranged at the rear end of the machine frame and positioned behind the bituminous mixture distributor. Seamless transition between bonding layer material spraying and bituminous mixture laying is realized through the combination of the laying equipment and automatic bonding layer spraying equipment, so the damage and the pollution to the bonding layer in a construction process are avoided and the construction period is shortened.

Description

technical field [0001] The present invention relates to a construction equipment and application method, in particular to an asphalt mixture paving equipment and application method capable of protecting the bonding layer, the equipment and application method can be applied to bridge decks, tunnels or pavement Paving of binder courses and asphalt mixtures. Background technique [0002] The lower sealing layer and adhesive layer of highway asphalt pavement, and the waterproof adhesive layer of bridge deck pavement are important components in the structure of asphalt pavement. They play an important role in ensuring the integrity of the asphalt pavement structure, making the asphalt pavement layers coordinate with each other, and avoiding early damage to the pavement structure due to stress concentration under the action of vehicle loads. In addition, the lower sealing layer and the bonding layer can also act as a sealing structure layer, preventing surface water from entering...

AI Technical Summary

Problems solved by technology

This oil film is easy to be torn and adhered by tires and crawlers under heavy load, and it will leave the working surface with the rolling of tires and crawlers, causing damage to the bonding layer, or due to the dust and mud on the wheels adhering to the bonding surface. layer, causing contamination of the bonding layer

First, the damaged or contaminated bonding course cannot effectively bond the overlying asphalt mixture to the working surface, reducing the integrity of the pavement structure and the underlying structure or between two asphalt mixture layers , under the vertical pressure of vehicle loads, especially in high temperature seasons, the asphalt pavement mixture tends to flow horizontally due to the constraint of no bottom cohesive force, and rutting occurs. The material is prone to shifting and wrapping, which reduces the quality and service life of the pavement; secondly, due to the damage of the bonding layer, the waterproof performance of the pavement structure is reduced, and the road surface water is easy to enter the interior of the pavement structure through the gaps in the asphalt mixture Under the action of vehicle load, the water that enters the interior of the pavement structure becomes dynamic water, scours the pavement base, forms mud and then pumps up to form mud damage, and then causes pavement cracks, cracks, subsidence, potholes, etc. under repeated vehicle loads disease; at the same time, the bonded layer material cannot be reused, which also causes waste

[0004] The destruction of the asphalt pavement bonding layer has been a technical problem that has plagued the road engineering industry. Some people have tried to use crushed stones to isolate and protect the bonding layer, but the effect is minimal, especially in low temperature seasons. Stone even becomes the main cause of damage to the bonding layer

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