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Long-life cool pavement structure based on water circulation ecological drainage system

A technology of drainage system and pavement structure, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve the problems of affecting driving safety and comfort, limited effect, accelerating road rutting, etc., to improve construction and maintenance costs, The effect of reducing water mist and reducing road surface temperature

Active Publication Date: 2017-09-22
JSTI GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the service of asphalt pavement, high temperature aging in summer is an important factor affecting its durability. Continuous high temperature will also accelerate the formation of rutting on the road surface, which affects driving safety and comfort.
At present, most of the common methods to solve this problem start with the pavement structure and composition materials, but the effect achieved is limited, and the above-mentioned problems cannot be solved well.

Method used

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  • Long-life cool pavement structure based on water circulation ecological drainage system
  • Long-life cool pavement structure based on water circulation ecological drainage system
  • Long-life cool pavement structure based on water circulation ecological drainage system

Examples

Experimental program
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Effect test

Embodiment 1

[0051] In the southern part of Jiangsu, it is hot and rainy in summer, and there are serious ruts on a certain expressway, the deepest reaches 2cm, and the pavement structure is 4cmSUP-13+6cmAC-20+8cmAC-25. In view of the current situation, if the rainy season is not dealt with in time, it will easily cause safety accidents. Considering the driving safety and anti-rutting performance of the road surface, a 12cm milling surface layer is adopted for the original road surface, and a 5cm large gap is added to open the graded epoxy asphalt mixture. (OGFC-16)+6cm large gap open graded rubber asphalt mixture (OGFC-20)+1cm waterproof geotextile interlayer slurry seal layer, adopt the road surface structure of the present invention to transform it, improve drainage performance, and realize road surface cooling .

Embodiment 2

[0053] The pavement structure is set by the method of the present invention, and the permeable structure layer adopts 6cm large-gap open-graded epoxy asphalt mixture (OGFC-16)+8cm large-gap open-graded rubber asphalt mixture (OGFC-20)+1cm waterproof The structural form of the slurry seal layer of the geotextile interlayer + 38cm cement stabilized concrete. A side ditch 2 is set on one side of the permeable structure layer, and a central centralized storage ditch 3 is set on the other side according to the structure of the present invention. A central water collection well is set every 25m, and the layout of the pipeline is completed. When the road surface temperature is higher than 45°C, it will automatically Turn on the water circulation system to cool down the road surface.

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Abstract

The invention discloses a long-life cool pavement structure based on a water circulation ecological drainage system. The long-life cool pavement structure consists of a permeable structure layer, a rainwater collection and storage ditch and a water circulation driving system. On the basis of a traditional permeable pavement, the function of rainwater in the permeable pavement is further performed, and the road surface temperature of a summer bituminous pavement is lowered through the water circulation ecological drainage system. According to the novel cool pavement, accumulated water on the pavement can be effectively absorbed, water mist is reduced to improve the travel safety of a driver, meanwhile, the temperature of the pavement surface can be lowered, and the service life of the pavement can be prolonged so as to improve construction and maintenance cost in the whole life cycle of the pavement.

Description

technical field [0001] The invention relates to a drainage pavement structure, in particular to a long-life cool pavement structure based on a water circulation ecological drainage system. Background technique [0002] With the continuous expansion of the scale of expressways, the demand and scale of asphalt pavement maintenance are increasing. Under the conditions of energy shortage and increasingly prominent environmental problems, it is the future to improve the durability of the pavement, reduce the maintenance times during the operation period, and reduce the total cost of road operation. The inevitable trend and requirements of highway development. High temperature aging in summer is an important factor affecting the durability of asphalt pavement during service. Continuous high temperature will also accelerate the formation of rutting on the pavement, which affects driving safety and comfort. At present, most of the common means to solve this problem start with the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/22E01C11/24E01C7/32
CPCE01C7/32E01C7/325E01C11/224E01C11/226E01C11/227E01C11/24
Inventor 刘晨东刘爱华于明明丁武洋徐斌
Owner JSTI GRP CO LTD
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