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Construction technology of asphalt mixture pavement with ultra-thin wearing layer

An asphalt mixture and construction technology technology, applied in roads, roads, road repair and other directions, can solve the problems of equipment impact, endanger the safety of driving equipment and personnel, increase the overall inertia of equipment, etc., to avoid deposition, ensure use quality, Avoid severe effects of delamination

Active Publication Date: 2022-04-26
广州公路工程集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an ultra-thin wearing layer asphalt mixture pavement construction process, which solves the problem of the increase in the load of the mixture during the transportation of the existing ultra-thin wearing layer asphalt mixture pavement. The overall inertia of the equipment is likely to impact the equipment and endanger the safety of driving equipment and personnel

Method used

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  • Construction technology of asphalt mixture pavement with ultra-thin wearing layer
  • Construction technology of asphalt mixture pavement with ultra-thin wearing layer
  • Construction technology of asphalt mixture pavement with ultra-thin wearing layer

Examples

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Effect test

Embodiment 1

[0042] see figure 1 , the present invention provides a technical solution: an ultra-thin wearing layer asphalt mixture pavement construction process, comprising the following steps:

[0043] Step 1: Preparation before construction: Prepare construction equipment, test mix and test the mixture, and thoroughly deal with the quality defects of the underlying layer, remove dust and debris in the gaps and refill the gaps, and then use high-pressure fans to clean the road surface and keep the road clean;

[0044] Step 2: Preparation of the mixture: the mixture is mixed by a batch asphalt mixer, the mixing capacity is not less than 240t / h, the temperature is controlled as follows: the heating temperature of the stone is 180°C-190°C, the heating temperature of the asphalt is 165°C-175°C, and the mixing The temperature is 170℃~180℃, the dry mixing time is 8~10s, then add asphalt and mineral powder, and wet mix for 40~45s, the temperature of the mixture is 180±5℃;

[0045] Step 3: Tra...

Embodiment 2

[0049] see Figure 2-6 , the present invention provides a technical solution: transportation equipment, specifically comprising:

[0050] Transport locomotive head 1, the transport lorry head 1 has a box-shaped main body, a carrying vehicle body 2 installed on the right side of the box-shaped main body, and a carrying device 3 installed on the top of the carrying vehicle body 2, and is installed on the carrying device 3 away from the carrying vehicle body 2 The transportation device 4 in the middle position on one side, and the protective device 5 arranged on the outside of the transportation device 4, the transportation device 4 includes:

[0051] Transport box 41, the transport box 41 has a doorless box body, and an arc-shaped return plate 42 installed on the bottom of the doorless box inner cavity close to the side of the transport vehicle head 1, the mixture is guided by the setting of the arc-shaped return plate 42, To avoid the impact of the mixture on the transport box...

Embodiment 3

[0063] see Figure 2-6 , on the basis of Embodiment 2, the present invention provides a technical solution: a method for using transport equipment, comprising the following steps,

[0064] Step 1: open the opening and closing box door 46 and pour the mixture into the inside of the transport box 41, and then close the opening and closing box door 46 of the transport box 41;

[0065] Step 2: Start the transport vehicle head 1 to drive the overall equipment to move until it reaches the destination;

[0066] Step 3: During the transportation of the overall equipment, start the electric ring rail 56 in the protective device 5, so that the angle of the shielding cover body 57 is adjusted along the electric ring rail 56, so that the air flow drives the wind plate 55 to rotate, so that the spiral movement The material plate 44 conveys the mixture from bottom to top;

[0067] Step 4: The rotation of the pneumatic plate 55 drives the central shaft column 54 and the transmission shaft ...

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Abstract

The invention discloses an ultra-thin wearing layer asphalt mixture pavement construction process, comprising the following steps: Step 1: preparation before construction: preparation of construction equipment, trial mixing and testing of the mixture, and thorough treatment of the quality of the underlying layer Defects, remove the dust and debris in the gaps and refill the gaps; Step 3: Mixed material transportation: Use the mixed material transportation equipment to transport the mixed material; Step 5: Mixed material rolling: The initial rolling temperature should not be lower than 150°C, the temperature of the final pressure gauge is not lower than 120°C; Step 6: testing after forming, the present invention relates to the technical field of road engineering. The mixed material is guided by the arc-shaped return plate to avoid the impact of the mixed material on the transport box due to inertial factors when the deceleration occurs during transportation. The arc-shaped return plate is used to guide the mixed material to return to the transport box. Protection to prevent the mixture from destroying the transport box and causing harm to the transport vehicle.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to an ultra-thin wearing layer asphalt mixture road surface construction technology. Background technique [0002] All kinds of high-grade highway pavement and preventive maintenance projects to improve the anti-skid, drainage, anti-glare and noise reduction requirements of the road surface, including the asphalt pavement surface layer of new or rebuilt roads at all levels; Abrasive layer; asphalt pavement surface layer of various tourist special lines or special roads; abrasive layer of urban road asphalt pavement, airport and parking area pavement abrasive layer; cement concrete overlay and cement concrete overlay of various service areas, runways and squares layer. [0003] During the construction of the existing ultra-thin wearing layer asphalt mixture pavement, the transportation of the mixture increases the overall inertia of the equipment due to the load of the mixt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C19/46E01C19/10E01C19/08
CPCE01C19/46E01C19/10E01C19/08
Inventor 刘瑞盛张桓靖李志鹏
Owner 广州公路工程集团有限公司
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