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Tunnel Cement Concrete Pavement Oil Resistant Overlay and Overlay Technology

A technology of cement concrete and oil cover, which is applied in the direction of roads, roads, and cohesive pavement paved on site. It can solve the problems of oil pollution and the decline in the anti-skid performance of the SMA overlay, and reduce the risk of water damage. Good effect of anti-seepage performance

Active Publication Date: 2020-05-26
绍兴市公路管理局
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, like asphalt pavement, the skid resistance of SMA overlay will be seriously reduced under the action of oil pollution.
At present, the engineering community has not proposed pavement treatment measures that can effectively reduce the adverse effects of oil pollution

Method used

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  • Tunnel Cement Concrete Pavement Oil Resistant Overlay and Overlay Technology
  • Tunnel Cement Concrete Pavement Oil Resistant Overlay and Overlay Technology
  • Tunnel Cement Concrete Pavement Oil Resistant Overlay and Overlay Technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the present invention provides a kind of oil-resisting overlay of tunnel cement concrete pavement, comprising bonding layer 2, SMA asphalt mixture overlay layer 3, sand mist sealing layer 4 and waterproof and oil-resisting layer 5, bonding layer 2, SMA The asphalt mixture overlay layer 3, the sand mist seal layer 4 and the waterproof and oil-resistant layer 5 are sequentially overlaid on the treated cement concrete pavement 1 from bottom to top.

[0038] The overlaying process of the oil-resistant overlay on the cement concrete pavement of the tunnel includes the following processes in sequence:

[0039] Step 1: First, carry out disease treatment and anti-slip treatment on the original cement concrete pavement, use a blower to remove surface dust, clean it up, and form a rough and clean surface.

[0040] Step 2: Laying an adhesive layer 2 on the treated cement concrete pavement 1 . Before construction, use self-adhesive melting anti-crack pa...

Embodiment 2

[0049] In this embodiment, the oil-resistant overlay of the cement concrete pavement of the tunnel includes a bonding layer 2, an SMA asphalt mixture overlay layer 3, a sand mist seal layer 4 and a waterproof and oil-resistant layer 5, the bonding layer 2, the SMA asphalt mixture The material overlay layer 3, the sand mist seal layer 4 and the waterproof and oil-resistant layer 5 are sequentially overlaid on the treated cement concrete pavement 1 from bottom to top.

[0050] The overlaying process of the oil-resistant overlay on the cement concrete pavement of the tunnel includes the following processes in sequence:

[0051] Step 1: First, carry out disease treatment and anti-slip treatment on the original cement concrete pavement, use a blower to remove surface dust, clean it up, and form a rough and clean surface.

[0052] Step 2: Laying an adhesive layer 2 on the treated cement concrete pavement 1 . Before construction, use self-adhesive melting anti-crack paste to bond th...

Embodiment 3

[0061] In this embodiment, the oil-resistant overlay of the cement concrete pavement of the tunnel includes a bonding layer 2, an SMA asphalt mixture overlay layer 3, a sand mist seal layer 4 and a waterproof and oil-resistant layer 5, the bonding layer 2, the SMA asphalt mixture The overlay layer 3, the sand-mist seal layer 4 and the waterproof and oil-resistant layer 5 are overlaid on the treated cement concrete pavement 1 sequentially from bottom to top.

[0062] The overlay overlay process of the present invention involves many parameters, among which there are three parameters that have a key influence on the oil resistance of the overcoat, and they are respectively:

[0063] Parameter A: The amount of slurry (a mixture of sand and asphalt-based cover material) for the sand mist seal layer 4, 600g / m 2 , 800g / m 2 and 1000g / m 2 There are three levels, and their serial numbers are 1, 2, and 3 in turn.

[0064] Parameter B: The amount of waterproof and oil-repellent agent ...

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Abstract

The invention provides a tunnel cement concrete pavement oil-proof overlay and an overlaying process thereof, and belongs to the technical field of road maintenance. The tunnel cement concrete pavement oil-proof overlay comprises an adhesion layer, an SMA asphalt mixture overlaying layer, a sand-containing fog sealing layer, and a waterproof and oil-proof layer; the adhesion layer, the SMA asphaltmixture overlaying layer, the sand-containing fog sealing layer and the waterproof and oil-proof layer are overlaid on the treated cement concrete pavement from bottom to top. Compared with the conventional asphalt overlay, the oil-proof overlay provided by the invention is good in water penetration resistance, the waterproof and oil-proof layer, the sand-containing fog sealing layer and the adhesion layer in the overlay structure have the water penetration resistance, the water damage risk of the pavement can be reduced; and the skidding resistance attenuation amplitude of the overlay is reduced due to the isolation effect of the waterproof and oil-proof layer under the oil contamination effect, and the recovery speed is fast.

Description

technical field [0001] The invention belongs to the technical field of road maintenance, and in particular relates to a technique for overlaying an oil-resistant overlay on a cement concrete pavement of a tunnel. Background technique [0002] Oil pollution is common in asphalt pavement and cement pavement in various places, which has an adverse effect on the anti-skid performance of the pavement. The source of road surface oil pollution is the fuel (gasoline, diesel) or engine oil leaked on the road surface by motor vehicles due to poor condition, maintenance, breakdown, traffic accidents and other reasons. Compared with the outside of the tunnel, the lighting conditions inside the tunnel are poor, and the temperature change range is small, which is not conducive to the volatilization of oil pollution, and the impact of oil pollution is more lasting. For the asphalt pavement in the tunnel, the oil stain will dissolve the asphalt binder after contacting the road surface, sof...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/35
CPCE01C7/35E01C7/353
Inventor 何伟南陈海峰刘毅马燕华何建胜朱鹏钧高见文科
Owner 绍兴市公路管理局
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