Durability assessment of asphalt binder

被引：42

作者：

Angius, Ezequiel ^{[1
]}

Ding, Haibo ^{[1
]}

Hesp, Simon A. M. ^{[1
]}

机构：

[1] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 165卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Double-edge-notched tension test (DENT); Critical crack tip opening displacement (CTOD); Extended bending beam rheometer test (EBBR); Phase angle; Asphalt specification; Thermal and fatigue cracking; CRACKING;

D O I：

10.1016/j.conbuildmat.2018.01.037

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Test results are presented for 24 asphalt binders with the aim to compare various measures of durability. Surprisingly high correlations were found between disparate measures of durability but practical considerations make certain tests preferable. A comparison is provided between AASHTO M 320 grades, critical crack tip opening displacements, extended bending beam rheometer grades and grade losses, differences in limiting temperatures (Delta T-c), and simple limiting phase angle temperatures (T(delta)), on aged residues. The limiting phase angle temperature appears to be a convenient surrogate property that accurately predicts thermoreversible aging tendencies. Several binders performed poorly, likely because they contained unwarranted reclaimed asphalt. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：264 / 271

页数：8

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