4.7 Article

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

期刊

CONSTRUCTION AND BUILDING MATERIALS
卷 301, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2021.124126

关键词

Fatigue cracking; Thermal cracking; Pavement performance; HMA; WMA

资金

  1. National Cooperative Highway Research Program (NCHRP)

向作者/读者索取更多资源

The study investigates the correlations between laboratory measured binder/mixture properties and actual pavement cracking performance, identifying specific parameters with strong correlations to fatigue and thermal cracking on the field, proposing preliminary threshold values to minimize and control asphalt mixtures cracking issues.
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 T*D (thickness of HMA/WMA layer*vertical failure deformation) parameter shows the good correlation with the length of field fatigue cracking, while the Pb%*(epsilon b-low) (mixture binder content*binder 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 T*D parameter and 10 for Pb%*(epsilon b-low) parameter are proposed to minimize and control the cracking problem of asphalt mixtures in general.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据