Evaluation of the correlations between laboratory measured material properties with field cracking performance for asphalt pavement
نویسندگان
چکیده
Cracking is one of the primary distresses for asphalt pavements. There are many types laboratory tests developed to evaluate cracking performance material, however, relatively little attention has been dedicated evaluating and correlating measured properties with actual pavement performance. The main objective this study investigate relationships between various binder/mixture (including both fatigue thermal cracking) while also considering important mix design structure parameters. Field data were collected from 23 project sites control HMA section at least WMA each site. Laboratory testing was performed on field cores taken these sections as well corresponding extracted recovered binders. Advanced statistical analysis method including Pearson correlation Spearman rank coefficient then employed correlations disparate measurements data. Results show that T*D (thickness HMA/WMA layer*vertical failure deformation) parameter shows good length cracking, Pb%*εb-low (mixture binder content*binder strain) cracking. These do not change varying type (HMA or WMA). Based database generated in study, a preliminary threshold value 50 10 proposed minimize problem mixtures general.
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ژورنال
عنوان ژورنال: Construction and Building Materials
سال: 2021
ISSN: ['1879-0526', '0950-0618']
DOI: https://doi.org/10.1016/j.conbuildmat.2021.124126