Urban heat island effect reducing type asphalt pavement structure based on infrared radiation principle

An urban heat island effect and infrared radiation technology, which is applied to the condensing pavement, roads, roads and other directions paved on site, can solve problems such as serious urban heat island effect, and achieve a low urban heat island effect, high infrared emissivity, and simple structure. Effect

Inactive Publication Date: 2017-02-15
TAIZHOU POLYTECHNIC COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problem that the radiated heat of urban roads is almost completely absorbed by the atmosphere, resulting in serious urban heat island effect

Method used

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  • Urban heat island effect reducing type asphalt pavement structure based on infrared radiation principle
  • Urban heat island effect reducing type asphalt pavement structure based on infrared radiation principle
  • Urban heat island effect reducing type asphalt pavement structure based on infrared radiation principle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, the urban heat island effect-reducing asphalt pavement structure containing infrared heat radiation function cooling powder of the present invention includes the lower layer of infrared radiation asphalt mixture (1), the first infrared radiation modified emulsified asphalt from bottom to top An adhesive layer (2), an infrared radiation asphalt mixture middle surface layer (3), a second infrared radiation modified emulsified asphalt adhesive layer (4) and an infrared radiation asphalt mixture upper layer (5).

[0035] Among them, the thickness of the lower layer (1) of the infrared radiation asphalt mixture is 6 cm, the thickness of the middle surface layer (3) of the infrared radiation asphalt mixture is 5 cm, the thickness of the upper layer (5) of the infrared radiation asphalt mixture is 4 cm, and there is no thickness requirement for the sticky layer .

[0036] The material of the lower layer (1) of the infrared radiation asphalt mixture ...

Embodiment 2

[0055] The urban heat island effect-reducing asphalt pavement structure of the present invention containing the cooling powder with infrared heat radiation function is the same as that of Example 1, only the cooling powder with infrared heat radiation function is different.

[0056] In this embodiment, the infrared thermal radiation cooling powder is made of TiO 2 , ZnO and MgO are made of raw materials; the parts by weight of each raw material are as follows: TiO 2 5 parts, ZnO 30 parts, MgO 60 parts.

[0057] The preparation method of the infrared heat radiation function cooling powder is the same as that in Example 1.

[0058] The detection method and result of the infrared heat radiation functional powder are basically the same as those in Example 1.

Embodiment 3

[0060] The urban heat island effect-reducing asphalt pavement structure of the present invention containing the cooling powder with infrared heat radiation function is the same as that of Example 1, only the cooling powder with infrared heat radiation function is different.

[0061] In this embodiment, the infrared thermal radiation cooling powder is made of TiO 2 , ZnO and MgO are made of raw materials; the parts by weight of each raw material are as follows: TiO 2 10 parts, ZnO 20 parts, MgO 70 parts.

[0062] The preparation method of the infrared heat radiation function cooling powder is the same as that in Example 1.

[0063] The detection method and result of the infrared heat radiation functional powder are basically the same as those in Example 1.

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Abstract

The invention provides an urban heat island effect reducing type asphalt pavement structure based on the infrared radiation principle. The urban heat island effect reducing type asphalt pavement structure sequentially comprises an infrared radiation asphalt mixture lower face layer (1), a first infrared radiation modified emulsified asphalt bonding layer (2), an infrared radiation asphalt mixture middle face layer (3), a second infrared radiation modified emulsified asphalt bonding layer (4) and an infrared radiation asphalt mixture upper face layer (5) from bottom to top. The urban heat island effect reducing type asphalt pavement structure has the following beneficial effects that the pavement structure is simple in structure and can be located above a pavement structure in any form, the pavement structure has high emissivity within the atmosphere infrared window wave bands of 1-5 um and 8-14 um under sunlight irradiation, accordingly, the pavement structure has an obvious pavement cooling effect, the urban heat island effect can be relieved, and high-temperature damage to the asphalt pavement can be reduced.

Description

technical field [0001] The invention relates to an asphalt pavement structure, in particular to an asphalt pavement structure for reducing urban heat island effect based on the principle of infrared radiation. Background technique [0002] Urban roads occupy a large proportion of urban underlying surfaces. Asphalt pavement materials absorb heat quickly and have high heat capacity. The structure of ordinary asphalt pavement is a gray body close to a black body. In the entire solar spectrum range, its average absorption rate is as high as 90%. Above, the reflectivity of visible light and infrared is very low, and the absorbed solar radiation energy is greater than the thermal radiation energy emitted to the external space, which leads to the continuous accumulation of heat in the asphalt surface layer, which increases the temperature of the road surface, and the equilibrium temperature of the road surface in high temperature seasons can even be reduced. When it reaches about 7...

Claims

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Application Information

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IPC IPC(8): E01C7/32C04B35/04C04B18/02
CPCC04B18/023C04B35/04C04B2235/3232C04B2235/3284E01C7/32C04B26/26Y02A30/60
Inventor 王知乐
Owner TAIZHOU POLYTECHNIC COLLEGE
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