Estimation of Remaining Life for Airfield Flexible Pavement Considering Environmental Factors
For estimation of remaining life, mechanistic-empirical analysis approach traditionally neglects environmental influence on flexible pavement properties. This may lead to an unsatisfactory result. This paper proposes a method of time-sharing damage accumulation to consider the influence of moisture and frost on resilient modulus of subgrade and unbound materials, and the effect of temperature on modulus and Poisson ratio of asphalt mixture, in which the entire service life is divided into several stages and the total damage is obtained by accumulating damage in each stage within its traffic and environment conditions. Based on this method, a methodology considering environmental factors is proposed to predict the remaining life of in-service airfield flexible pavement, and its detailed steps are described followed by a case study to demonstrate the application of the methodology. The result indicates the methodology can give a relatively accurate result of remaining life of in-service flexible pavement, and improve overall evaluation’s accuracy of an airport's pavements.
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Supplemental Notes:
- This paper was sponsored by TRB committee AFD10 Standing Committee on Pavement Management Systems.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Zhao, Hongduo
- Ma, Lukuan
- Zou, Yiqiang
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Conference:
- Transportation Research Board 95th Annual Meeting
- Location: Washington DC, United States
- Date: 2016-1-10 to 2016-1-14
- Date: 2016
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 16p
- Monograph Title: TRB 95th Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Airport runways; Asphalt mixtures; Environmental impacts; Flexible pavements; Modulus of resilience; Moisture damage; Poisson ratio; Service life; Subgrade (Pavements); Temperature
- Subject Areas: Aviation; Design; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 01590180
- Record Type: Publication
- Report/Paper Numbers: 16-3685
- Files: TRIS, TRB, ATRI
- Created Date: Feb 14 2016 4:01PM