Temperature prediction model for flexible pavements in Taiwan

Chi Chou Liao, Bo Ruei Chen, Shun Hsing Chen, Wei Hsing Huang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this study, a large amount of temperature measurements were obtained from a test site incorporating 3 typical pavement sections to establish a pavement temperature prediction model for freeways in Taiwan. Using thermocouples embedded at 20-mm distance in depth, temperature profiles of 3 different pavement structures were determined for 24-hr periods covering seasonal variations. Predictions made by BELLS model revealed that, at pavement temperature higher than 40°C, the model tends to underestimate pavement temperatures. Considering the climatic characteristics in Taiwan, the air temperature at testing time is used in the model. Also, a single sine function on a 24-hr clock system is used to simplify the predicting equation. The proposed pavement temperature model shows a good correlation between measured and predicted temperatures and has a coefficient of determination greater than 0.93. The pavement temperature prediction model is judged to be easier to use than the BELLS model, due to the fact that temperature data for the previous day are no longer needed, and will be used for temperature adjustment of future falling weight deflectometer data in Taiwan.

Original languageEnglish
Title of host publicationPerformance Modeling and Evaluation of Pavement Systems and Materials
Pages82-89
Number of pages8
Edition195
DOIs
StatePublished - 2009
Event2009 GeoHunan International Conference - Performance Modeling and Evaluation of Pavement Systems and Materials - Changsha, Hunan, China
Duration: 3 Aug 20096 Aug 2009

Publication series

NameGeotechnical Special Publication
Number195
ISSN (Print)0895-0563

Conference

Conference2009 GeoHunan International Conference - Performance Modeling and Evaluation of Pavement Systems and Materials
Country/TerritoryChina
CityChangsha, Hunan
Period3/08/096/08/09

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