Effectiveness Evaluation of Asphalt Pavement Maintenance Treatments Based on Equivalent Area Method

2018 ◽  
pp. 379-388
Author(s):  
Linyi Yao ◽  
Qiao Dong ◽  
Fujian Ni ◽  
Jiwang Jiang
Keyword(s):  
Asphalt Pavement ◽  
Effectiveness Evaluation ◽  
Area Method ◽  
Pavement Maintenance ◽  
Equivalent Area

Detection of Crack Growth in Asphalt Pavement Through Use of Infrared Imaging

2017 ◽  
Vol 2645 (1) ◽  
pp. 24-31 ◽  
Author(s):  
Yuchuan Du ◽  
Xiaoming Zhang ◽  
Feng Li ◽  
Lijun Sun
Keyword(s):  
Crack Growth ◽  
Temperature Difference ◽  
Crack Detection ◽  
Infrared Imaging ◽  
Asphalt Pavement ◽  
Atmospheric Temperature ◽  
Support Vector ◽  
Road Maintenance ◽  
Pavement Maintenance ◽  
Detection Model

The degree of crack growth in asphalt pavement is an important decision-making factor in road maintenance management. Automatic crack detection is based mainly on digital images; this factor makes effective detection of the degree of crack growth difficult. Infrared thermography was used, and a detection method for the degree of crack growth on the basis of infrared imaging was proposed. Infrared images included gray-level information on cracks and temperature information; the latter provided one additional dimension of information over ordinary images. Temperature information was used to detect the degree of crack growth. Atmospheric temperature was found to be the main factor that affected the temperature difference between a crack and the road surface. This temperature difference varied significantly for different extents of crack growth, and therefore this difference can be used to detect the degree of crack growth. Two classification functions that divided the degree of crack growth into three grades were obtained by classifying data through the use of a support vector machine. A suitable environmental condition for using the detection model was proposed. The experimental results showed that the average model error was 15.4%, which indicated a good application prospect and an improvement in economic benefit for pavement maintenance.

Application of a New Asphalt Pavement Maintenance Agent on Yuhe Road of Chongqing

2011 ◽  
Vol 280 ◽  
pp. 49-53
Author(s):  
Li Ping Qin ◽  
Wei Rong Huang
Keyword(s):  
Preventive Maintenance ◽  
Permeability Coefficient ◽  
Asphalt Pavement ◽  
Curing Agent ◽  
Pavement Maintenance ◽  
Maintenance System ◽  
Water Permeability Coefficient ◽  
Aged Asphalt ◽  
Before And After ◽  
New Type

In this paper, the abilities of recovery and regeneration for aged asphalt of a new type of asphalt pavement maintenance agent are studied. The agent is applied in the construction of test section of Yuhe Road, and the pavement performances before and after the construction are compared. The test indicates that after the maintenance agent is added into aged asphalt, the penetration and ductility are effectively improved, the softening point is lowered. When the penetration depth of agent reaches 6 mm，the texture depth , friction coefficient and antiskid value are improved to some extent ,the water permeability coefficient is reduced, and the appearance of pavement is improved as well，The paper provided reference for the applying curing agent of asphalt pavement to the preventive maintenance system.

scholarly journals Field performance of asphalt pavement maintenance using Cup Lump Rubber Modified Asphalt (CMA)

2019 ◽  
Vol 527 ◽  
pp. 012064 ◽  
Author(s):  
R. Razali ◽  
M. R. Hainin ◽  
N. A. Hassan ◽  
M. K. Idham ◽  
M. S. C. Malek ◽  
...  
Keyword(s):  
Asphalt Pavement ◽  
Field Performance ◽  
Pavement Maintenance ◽  
Modified Asphalt

The Applications of FWD on the Asphalt Pavement Maintenance Design

2012 ◽  
Vol 512-515 ◽  
pp. 2923-2926 ◽  
Author(s):  
Yong Chun Cheng ◽  
Ri Hua Bai
Keyword(s):  
Asphalt Pavement ◽  
Advanced Technology ◽  
Work Efficiency ◽  
Pavement Maintenance ◽  
The Core ◽  
Back Calculation ◽  
Drilling Core ◽  
Structure Layer

In asphalt pavement maintenance design the deflection of pavement strength and the drilling core examination of damage on each structure layer are required. This paper based on the advanced technology of the FWD and developed a link with the Benkelman Beam testing. It indicated that assessment of the usage information on each structure layer by using the Modulus Back Calculation was well matched with the core results; therefore, it improved the work efficiency to a new level.

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