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Cooling pavement

A pavement and surface layer technology, applied to roads, roads, pavement details, etc., can solve the problems of high cost, complicated construction process, and limited effect of road surface temperature, etc., and achieve the effects of low cost, reduced rutting disease, and easy construction

Pending Publication Date: 2021-06-18
JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above methods can reduce the temperature of the road surface to a limited extent, and the cost is relatively high, and the construction process is relatively complicated.

Method used

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Embodiment 1

[0090] This embodiment provides a cooling road, please combine Figure 1 to 3 The cooling road surface is sequentially provided with the upper layer 2, the medium layer 3, the cooling structure layer 4, the lower layer 5, and the cement stabilized gravel base layer 6.

[0091] Among them, the asphalt mixture used in the upper layer 2 is SMA-13, the asphalt mixture used in the middle layer 3 is SUP-20, and the asphalt mixture used in the lower layer 5 is SUP-25. 20 wt% graphite fibers were added to the asphalt mixture of the upper layer 2 and the lower layer 5. The thickness of the upper layer 2 is 4 cm, and the thickness of the medium layer 3 is 6 cm, the thickness of the cooling structure layer 4 is 3 cm, the thickness of the lower layer 5 is 7 cm, and the thickness of the cement stabilized stone base layer 6 is 38 cm.

[0092] The cooling structure layer 4 is poured by the GA10 pouring asphalt mixture 7, and 20% by weight of graphite fibers are also added in the asphalt mixture. ...

Embodiment 2

[0102] The cooling pavement provided in this embodiment is as follows:

[0103] Among them, the asphalt mixture used in the upper layer 2 is a mixture of SUP-13 and AC-13, and the asphalt mixture used in the middle layer 3 is SUP-20 and AC-20 mixed materials, and the lower layer 5 is used. The asphalt mixture is a mixture of SUP-25 and AC-25. 25 wt% graphite powder was added to the asphalt mixture of the upper layer 2 and the lower layer 5. The thickness of the upper layer 2 is 3 cm, the thickness of the medium layer 3 is 7 cm, and the thickness of the lower layer 5 is 8 cm, the cement stabilized gravel base layer 6 has a thickness of 40 cm.

[0104] The asphalt mixture in the cooling structure layer 4 added 15% by weight of graphite powder. The oil ratio of the asphalt mixture in the cooling structure layer 4 is 7.8. The thickness of the cooling structure layer 4 is 2.5 cm.

[0105] The cooling module 10 disposed in the cooling structure layer 4 is arranged along the driving dire...

Embodiment 3

[0109] The cooling pavement provided in this embodiment is as follows:

[0110] A mixture of 30% by weight of graphite fibers and carbon fibers (mixed ratio 1: 1) is added to the asphalt mixture of the upper layer 2 and the lower layer 5. The thickness of the upper layer 2 is 2.5 cm, the thickness of the middle layer 3 is 8 cm, the thickness of the lower layer 5 is 7.5 cm, and the thickness of the cement stabilized gravel base layer 6 is 39 cm.

[0111] The asphalt mixture in the cooling structure layer 4 adds 25% by weight of graphite fibers and mixtures of carbon fibers (mixed ratio 1: 1). The oil ratio of the asphalt mixture in the cooling structure layer 4 is 8.3. The thickness of the cooling structure layer 4 is 2.8 cm.

[0112] The length of each of the cooling modules 10 is 18 m. The thermally conductive tubes 9 in each of the cooling modules 10 are serpeted in the travel direction (longitudinal). The material of the heat transfer tube 9 is a steel, and the heat conductive ...

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Abstract

The invention discloses a cooling pavement, belonging to the technical field of road traffic. The cooling pavement comprises a cooling structure layer and a plurality of cooling modules, wherein at least a part of the cooling modules are sequentially arranged in a driving direction; each cooling module comprises a heat conduction pipe and a cooling part; and at least the heat conduction pipes in the cooling modules are arranged in the cooling structure layer, the inlet ends of the heat conduction pipes are used for inputting heat conduction liquid, and the outlet ends of the heat conduction pipes penetrate through the cooling parts so as to cool the heat conduction liquid, having absorbed pavement heat, in the heat conduction pipes through the cooling parts. According to the cooling pavement, heat in the pavement can be effectively absorbed through the heat conduction pipes and the heat conduction liquid flowing in the heat conduction pipes, heat exchange and heat dissipation are conducted through the cooling parts, and therefore, the effect of reducing the pavement surface temperature is achieved. The method is low in cost, easy to construct and capable of avoiding or reducing the rut damage of the asphalt pavement for a long time.

Description

Technical field [0001] The present invention relates to the field of road traffic, and in particular, it relates to a cooling road. Background technique [0002] Asphalt pavement itself is black, in the high temperature environment, due to solar radiation, the road surface temperature can be up to 70 ° C, resulting in gradual softening of asphalt, which is prone to the traverse disease under load. [0003] At present, the ruts to asphalt roads are mainly used to solve and improve the following methods: [0004] (1) By adding asphalt additives, improving the high temperature performance of asphalt, an additive for improving mixture resistance to cars, such as PE-like anti-car, high modulus, rock asphalt, highly sticky asphalt, etc. [0005] (2) Pulp composite asphalt pavement structures in which the cement slurry is perfused in the mixture in the large pores (void ratio at 22-28%); [0006] (3) Reduce the temperature of the road surface. If the plug-in material is absorbed in the ...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C11/24
CPCE01C7/32E01C11/24
Inventor 张苏龙李华王捷
Owner JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
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