Evaluation of the correlations between laboratory measured material properties with field cracking performance for asphalt pavement

Cracking is one of the primary distresses for asphalt pavements. There are many types of laboratory tests developed to evaluate the cracking performance of asphalt material, however, relatively little attention has been dedicated to evaluating and correlating the laboratory measured properties with the actual pavement performance. The main objective of this study is to investigate the relationships between the various laboratory measured binder/mixture properties with the actual pavement cracking (including both fatigue and thermal cracking) performance while also considering the important mix design and pavement structure parameters. Field pavement performance data were collected from 23 project sites with one control HMA section and at least one WMA section at each site. Laboratory testing was performed on the field cores taken from these sections as well as the corresponding extracted and recovered binders. Advanced statistical analysis method including the Pearson correlation and Spearman rank correlation coefficient were then employed to evaluate the correlations between the disparate laboratory measurements and actual pavement performance data. Results show that TD (thickness of HMA/WMA layervertical failure deformation) parameter shows the good correlation with the length of field fatigue cracking, while the Pb%εb-low (mixture binder contentbinder failure strain) parameter shows the good correlation with the length of field thermal cracking. These correlations do not change with varying the pavement type (HMA or WMA). Based on the database generated in this study, a preliminary threshold value of 50 for TD parameter and 10 for Pb%εb-low parameter are proposed to minimize and control the cracking problem of asphalt mixtures in general.

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Work Title Evaluation of the correlations between laboratory measured material properties with field cracking performance for asphalt pavement
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Open Access
Creators
  1. Runhua Zhang
  2. Weiguang Zhang
  3. Shihui Shen
  4. Shenghua Wu
  5. Yiming Zhang
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Construction and Building Materials
Publication Date September 27, 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1016/j.conbuildmat.2021.124126
Deposited November 17, 2021

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  • Added 2021_CBM_lab_property_to_field_cracking.pdf
  • Added Creator Runhua Zhang
  • Added Creator Weiguang Zhang
  • Added Creator Shihui Shen
  • Added Creator Shenghua Wu
  • Added Creator Yiming Zhang
  • Published
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