Prediction Model of Asphalt Pavement PCI of Expressway Under Different Maintenance Conditions

ZHANG Jinxi; KONG Xiangjie; HAN Dingding; WANG Chao

doi:10.11936/bjutxb2015020034

Journal of Beijing University of Technology > 2016 > 42(1): 74-80. > DOI: 10.11936/bjutxb2015020034

ZHANG Jinxi, KONG Xiangjie, HAN Dingding, WANG Chao. Prediction Model of Asphalt Pavement PCI of Expressway Under Different Maintenance Conditions[J]. Journal of Beijing University of Technology, 2016, 42(1): 74-80. DOI: 10.11936/bjutxb2015020034

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Prediction Model of Asphalt Pavement PCI of Expressway Under Different Maintenance Conditions

1. College of Metropolitan Transportation,Beijing University of Technology, Beijing 100124, China;
2. Beijing Capital Highway Development Group Limited, Beijing 100161, China

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Received Date: February 13, 2015
Available Online: January 10, 2023

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In order to make accurate and scientific performance evaluation and maintenance decision of asphalt pavement,the pavement condition index( PCI) detection data of asphalt pavement of Beijing expressways in different years was investigated and analyzed in this paper. The PCI decay trend was studied and an exponential type prediction model of PCI under different maintenance mode was summarized. Result shows that the maintenance type and intensity is different at different ages of expressways. PCI of expressways may decrease in a low intensity manner or in a wave shaped high intensity manner under different maintenance modes. When the age of expressway approaches its severing life the PCI shows a sharp decay trend. In Beijing area,the value of pavement factor “a”is between0. 008 ~ 0. 035. Prediction result of PCI presented in this paper is more accurate and accords with the asphalt pavement PCI decay trend of expressways and maintenance manner. The result of this paper provides a theoretical support for the accurate prediction of PCI and maintenance decision of expressway pavement.
- road engineering,
- expressway,
- asphalt pavement,
- pavement condition index(PCI),
- evaluation,
- prediction model,
- maintenance decision

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Prediction Model of Asphalt Pavement PCI of Expressway Under Different Maintenance Conditions

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