Asphalt pavement modulus backcalculation using surface deflections under moving loads

2020 ◽  
Vol 35 (11) ◽  
pp. 1246-1260
Author(s):  
Chaoyang Wu ◽  
Hao Wang ◽  
Jingnan Zhao ◽  
Xin Jiang ◽  
Yanjun Qiu
Keyword(s):  
Asphalt Pavement ◽  
Moving Loads ◽  
Surface Deflections

Response Analysis of Surface Crack in Asphalt Pavement under Moving Loads

2011 ◽  
Vol 250-253 ◽  
pp. 2769-2772
Author(s):  
Yan Hui Zhong ◽  
Bei Zhang ◽  
Yan Mei Zhong ◽  
Cheng Chao Guo
Keyword(s):  
Surface Crack ◽  
Asphalt Pavement ◽  
Service Condition ◽  
Response Analysis ◽  
Moving Loads ◽  
Moving Vehicle ◽  
Finite Element Software ◽  
Propagation Behavior ◽  
Vehicle Load ◽  
Maintenance And Rehabilitation

Aiming at the problem that the asphalt pavement is prone to early crack and reduces its service life, the response of transverse and longitudinal surface vertical cracks under moving loads is studied based on fracture mechanics theory. By means of 3D numerical simulation with the general finite element software package ABAQUS, the change law of stress intensity factor kⅡ of transverse and longitudinal surface crack under moving vehicle load are deeply analyzed and some conclusions are drawn, which contribute to further research on the propagation behavior of asphalt pavement surface crack in service condition, and will provide some guidance for the maintenance and rehabilitation of asphalt pavement.

scholarly journals Dynamic Response Analysis of Rutting Resistance Performance of High Modulus Asphalt Concrete Pavement

2018 ◽  
Vol 8 (12) ◽  
pp. 2701 ◽  
Author(s):  
Chundi Si ◽  
Hang Cao ◽  
Enli Chen ◽  
Zhanping You ◽  
Ruilan Tian ◽  
...  
Keyword(s):  
Surface Layer ◽  
Thermal Stress ◽  
Temperature Variation ◽  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Moving Loads ◽  
High Modulus ◽  
Rutting Resistance ◽  
Resistance Performance ◽  
Continuous Temperature

In order to systematically study the rutting resistance performance of High-Modulus Asphalt Concrete (HMAC) pavements, a finite element method model of HMAC pavement was established using ABAQUS software. Based on the viscoelasticity theory of asphalt, the stress and deformation distribution characteristics of HMAC pavement were studied and compared to conventional asphalt pavement under moving loads. Then, the pavement temperature field model was established to study the temperature variation and the thermal stress in HMAC pavement. Finally, under the condition of continuous temperature variation, the creep behavior and permanent deformation of HMAC pavement were investigated. The results showed that under the action of moving loads, the strain and displacement generated in HMAC pavement were lower than those in conventional asphalt pavement. The upper surface layer was most obviously affected by outside air temperature, resulting in maximum thermal stress. Lastly, under the condition of continuous temperature change, HMAC pavement could greatly reduce the deformation of asphalt material in each surface layer compared to conventional asphalt pavement.

Numerical simulation of dynamic responses of basalt fiber reinforced asphalt pavement under moving loads

2016 ◽  
pp. 1287-1296
Author(s):  
Peiqing Wang ◽  
Fujian Wang ◽  
Mingqiang Ke ◽  
Zhigang Lu ◽  
Houquan Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Asphalt Pavement ◽  
Basalt Fiber ◽  
Dynamic Responses ◽  
Moving Loads ◽  
Fiber Reinforced

Prediction of Temperature Field of Asphalt Pavement Structure

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Zhizhong Zhao ◽  
Mengchen Li ◽  
Yu Wang ◽  
Wenwen Chen ◽  
Yulong Zhao ◽  
...  
Keyword(s):  
Temperature Field ◽  
Asphalt Pavement ◽  
Pavement Structure

Performance Prediction of Asphalt Pavement Based on the Combined Model

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Wenwen Feng ◽  
Guanglai Jin ◽  
Haiting Liu ◽  
Zhixiang Zhang
Keyword(s):  
Performance Prediction ◽  
Asphalt Pavement ◽  
Combined Model
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