Ultrathin high-skid-resistance asphalt pavement structure for humid and hot areas and preparation method

An asphalt pavement and regional technology, applied in the field of ultra-thin high-slip anti-skid asphalt pavement structure and preparation, can solve problems such as poor technical effect, achieve widening utilization rate, prevent surface water infiltration, good anti-grinding and wear resistance performance consumption

Pending Publication Date: 2020-07-03
NANCHANG UNIV
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide an ultra-thin high-slip asphalt pavement structure and preparation method for hot and humid areas, which can improve the skid resistance and service life of the road in hot and humid areas, so as to solve the existing problems. There are problems such as poor technical effects

Method used

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  • Ultrathin high-skid-resistance asphalt pavement structure for humid and hot areas and preparation method
  • Ultrathin high-skid-resistance asphalt pavement structure for humid and hot areas and preparation method
  • Ultrathin high-skid-resistance asphalt pavement structure for humid and hot areas and preparation method

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Embodiment 1

[0047] Such as figure 2 As shown, the purpose of the present invention is to provide a high anti-skid surface layer structure suitable for asphalt pavement in hot and humid areas, which can improve the slip resistance, temperature sensitivity, high temperature stability and service life of the pavement in hot and humid areas.

[0048] Considering the comprehensive performance of the road surface and fully showing the differential polishing effect, the ultra-thin and high-skid surface layer is graded as SMA-5.

[0049] Table 1 SMA-5 grading design

[0050]

[0051] The mineral material used for the ultra-thin and high-sliding surface layer is 88# calcined bauxite, steel slag and ordinary limestone.

[0052] Table 2 88# Calcined bauxite, steel slag and ordinary limestone aggregate technical indicators and related requirements

[0053]

[0054]

[0055] The mineral powder on the ultra-thin and high anti-skid surface layer is high-quality limestone mineral powder.

[0056] Table 3 Technical...

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Abstract

The invention relates to the technical field of asphalt mixtures, in particular to an ultrathin high-skid-resistance asphalt pavement structure for humid and hot areas and a preparation method. The ultrathin high-skid-resistance asphalt pavement structure comprises a base layer, a first asphalt concrete layer, a second asphalt concrete layer, a third asphalt concrete layer and a skid-resistance surface layer which are sequentially laid from bottom to top; wherein the first asphalt concrete layer is a modified asphalt concrete layer, the second asphalt concrete layer is an open graded asphalt concrete layer, and the third asphalt concrete layer is a dense graded asphalt concrete layer. The ultrathin high-skid-resistance asphalt pavement structure can improve the skid resistance and prolongservice life of pavements in humid and hot areas so as to solve the problems of poor technical effect and the like in the prior art.

Description

Technical field [0001] The invention relates to the technical field of asphalt mixtures, in particular to an ultra-thin and high anti-skid asphalt pavement structure used in hot and humid areas and a preparation method. Background technique [0002] Road traffic safety is still a common problem faced by all countries in the world. In the traffic safety impact system composed of people-vehicles-roads-environment-management, the role of "roads" is crucial. An important factor that causes frequent traffic accidents is the lack of sufficient friction between tires and roads. At the same time, the greater capacity and wheel load (especially heavy-duty vehicles) accelerate the polishing and abrasion of road surface aggregates, causing rapid decline in the anti-skid ability of the road surface, and traffic safety problems have become increasingly prominent. Especially in areas with heavy rainfall in the south, such as Jiangxi, after a vehicle has been running for a period of time, the...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C11/24C04B28/08
CPCC04B28/082C04B2111/0075E01C7/32E01C11/24C04B14/303C04B14/28C04B18/26C04B24/36C04B18/12C04B2103/0068
Inventor 赵华
Owner NANCHANG UNIV
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