Seal coat with road surface cooling function

A functional and emulsified asphalt technology, which is applied in the direction of climate change adaptation, can solve the problems of high cost, toxic materials, oil spills, etc., and achieve the effects of improving performance, prolonging service life, and increasing reflectivity

Active Publication Date: 2014-08-06
CCCC HIGHWAY MAINTENANCE ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a heat-absorbing material with high temperature sensitivity, asphalt pavement also has certain disadvantages in the application process: in the high temperature season of summer, under continuous sunlight, a large amount of heat is absorbed by the asphalt pavement and stored in the asphalt pavement layer. Accumulated, the temperature of the asphalt pavement can reach 63 ℃ ~ 68 ℃, which seriously aggravates the urban "heat island effect" an

Method used

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  • Seal coat with road surface cooling function
  • Seal coat with road surface cooling function
  • Seal coat with road surface cooling function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017]

[0018] In this example, the slurry seal layer is ES-1 type; the emulsified asphalt is SBS modified emulsified asphalt; the auxiliary agent is a silane coupling agent; the mineral material gradation is shown in Table 1.

[0019] Table 1 Mineral material synthesis gradation

[0020]

[0021]

Embodiment 2

[0023] This embodiment is the same as Embodiment 1, except that: the emulsified asphalt can be a kind of common emulsified asphalt or SBR modified emulsified asphalt; the auxiliary agent is a titanate coupling agent.

Embodiment 3

[0025]

[0026] The slurry seal layer described in this example is ES-2 type; the emulsified asphalt described in this example is SBS modified emulsified asphalt; the auxiliary agent is a silane coupling agent; see Table 2 for the mineral material gradation.

[0027] Table 2 Mineral synthesis gradation

[0028]

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PUM

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Abstract

The invention discloses a seal coat with a road surface cooling function. The seal coat comprises the following raw materials in parts by weight: 100 parts of mineral aggregate, 0-3 parts of cement, 6-12 parts of water, 4-20 parts of emulsified asphalt, 0.2-3 parts of calamine, 0.2-3 parts of molybdenite and 0-1 part of an assistant; the seal coat adopts a micro-surfacing or a thin pulp seal coat; the emulsified asphalt is one of common emulsified asphalt, SBS modified emulsified asphalt or SBR modified emulsified asphalt; the calamine is calamine powder; the molybdenite is molybdenite powder; the assistant is a silane coupling agent or a titanate coupling agent. The seal coat with the road surface cooling function reasonably utilizes the excellent characteristics of calamine and molybdenite, can reduce the road surface temperature by 5-10 DEG C in hot summer, relieves the heat island effect in a city and the problem about track at a high temperature, and has the characteristics of skid resistance, crack control, low carbon and environmental friendliness.

Description

technical field [0001] The invention belongs to the technical field of road materials, and in particular relates to a sealing layer with a road surface cooling function. Background technique [0002] Asphalt pavement has many advantages such as good driving comfort, low noise, easy repair and maintenance, and has become the main form of urban pavement structure in our country. However, as a heat-absorbing material with high temperature sensitivity, asphalt pavement also has certain disadvantages in the application process: in the high temperature season of summer, under continuous sunlight, a large amount of heat is absorbed by the asphalt pavement and stored in the asphalt pavement layer. Accumulated, the temperature of the asphalt pavement can reach 63 ℃ ~ 68 ℃, which seriously aggravates the urban "heat island effect" and affects the living comfort of citizens. To shorten the service life of the road, it will be of great significance if certain technical measures can be ...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B28/00
CPCY02A30/60
Inventor 张洪华林声屈栋祥王朝辉赵娟娟
Owner CCCC HIGHWAY MAINTENANCE ENG TECH
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