A New Regeneration and Restoration Technology of Asphalt Pavement

2010 ◽  
Vol 150-151 ◽  
pp. 262-266
Author(s):  
Zhao Feng Lu ◽  
Min Qin ◽  
Xiao Hong Guo
Keyword(s):  
Service Life ◽  
Preventive Maintenance ◽  
Economic Benefit ◽  
Asphalt Pavement ◽  
Construction Technology ◽  
Pavement Surface ◽  
Regeneration Mechanism ◽  
Restoration Mechanism

In order to defer early damages of asphalt pavement, a new regeneration and restoration technology of asphalt pavement surface is presented in preventive maintenance. The regeneration mechanism and the restoration mechanism were analyzed and the applicable conditions of the technology were proposed. Based on the application of tested road, the relevant construction technology and requirements were put forward. The results show that the new regeneration and restoration technology can better restore the surface performances of original asphalt pavement and prolong the service life of asphalt pavement；in contrast with the traditional preventive maintenance technology, it has a good economic benefit, which is worthy of making more widespread popularization and application in preventive maintenance of asphalt pavement.

scholarly journals Construction Treatment Technology for Cracks in Asphalt Pavement of Road and Bridge

2020 ◽  
Vol 198 ◽  
pp. 03013
Author(s):  
Yueshu Li
Keyword(s):  
Service Life ◽  
Influencing Factors ◽  
Road Traffic ◽  
Asphalt Pavement ◽  
Construction Technology ◽  
Treatment Technology ◽  
The Common

In recent years, with the development of road traffic in China, road and bridge projects have gradually increased. While the number of projects has increased sharply, construction technology has been greatly improved. The increase in the use of roads and bridges has led to an increase in the probability of cracks on the roads and bridges. Starting from the common types of cracks, this article explains how to effectively ensure the service life of roads and bridges, improve the performance of roads and bridges, avoid road cracks, deal with the cracks, and emphasize the influencing factors of cracks and the corresponding solutions for the reference of relevant personnel.

Key Technique on the Process Control for Construction of Hohhot Circle Expressway Asphalt Pavements

2012 ◽  
Vol 256-259 ◽  
pp. 1748-1753
Author(s):  
Bin Zhao ◽  
Pei Wen Hao
Keyword(s):  
Inner Mongolia ◽  
Raw Materials ◽  
Asphalt Pavement ◽  
Load Capacity ◽  
Asphalt Mixture ◽  
Natural Increase ◽  
Rigid Base ◽  
Construction Technology ◽  
Pavement Structure ◽  
Major Section

As vehicle flow on arterial highway in Inner Mongolia sharply increased, the originally designed natural increase rate of 8% per year has been exceeded on the vehicle flow in some sections. According to statistics, monthly average vehicle flow on major section of G6 expressway has reached a standard flow of 67478 vehicles per day and night, of which in 70-80% are large ones for coal transportation. Therefore, pavement load and road capacity have exceed the designed expressway load capacity. At present, semi-rigid base asphalt pavement structure is still widely used for high-grade highway pavement in Inner Mongolia. With years of construction for such pavement structure, a great deal of valuable experience has been gained on construction technology. However, there are still a few deficiencies in the quality of raw materials, gradation control of asphalt mixture and adjustment of equipment, etc. Hohhot circle expressway connects with the G6 and G7 expressways, suffering from problems such as large vehicle flow and load overweight. This paper introduced a key technique that should be properly controlled during construction of such pavement structure, emphasized technique control and management of the following aspects, i.e. ballast sizes and gradation control, asphalt concrete mixture, adjustment of pavers, validation of mixing proportion in production and reasonable arrangement of process, and summarized corresponding technical measures taken during construction of asphalt pavement in this project.

Mechanical Response Analysis of the Composite Asphalt Pavement

2014 ◽  
Vol 1023 ◽  
pp. 28-31
Author(s):  
Li Min Li
Keyword(s):  
Service Life ◽  
Mechanical Response ◽  
Asphalt Pavement ◽  
Road Construction ◽  
Pavement Design ◽  
Rigid Base ◽  
Response Analysis ◽  
Early Failure ◽  
Short Service Life ◽  
Design Software

With the constant increasing of traffic flow and axle load, the early failure of semi-rigid base asphalt pavement is increasingly serious in China. The bad durability and short service life of pavement have become main obstacles in road construction development. Based on the experience of successful application, the early failure of semi-rigid base asphalt pavement is solved, and the service life of pavement is increased by using of the composite asphalt pavement. To solve the design problem of the composite asphalt pavement , its mechanical properties influence results of are obtained by the factors, such as shear strain, shear stress, compression strain on top of subgrade, etc, by a lot of calculation using Shell pavement design software. These provide theoretical basis for durable asphalt pavement design based on rut-resistance property.

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