Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 166, Issue -, Pages 87-95Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.01.094
Keywords
Double-edge-notched tension test (DENT); Critical crack tip opening displacement (CTOD); Asphalt specification grading; Pavement cracking; Fatigue cracking; Mastic testing
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Funding
- Ministry of Transportation of Ontario
- Natural Sciences and Engineering Research Council of Canada
- China Scholarship Council
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Asphalt cements were tested in double-edge-notched tension geometries, straight and modified with different fillers at a range of rates and temperatures. Master curves for the essential works (w(e)), plastic works (beta w(p)), and approximate critical crack tip opening displacements were compared. Results for mastics obtained with a single small ligament length were found to be highly correlated with those obtained through the essential work of failure analysis suggesting that under certain circumstances it may be possible to simplify the analysis. Significant rate and temperature effects were found with slower rates and higher temperatures being more discriminating. (C) 2018 Elsevier Ltd. All rights reserved.
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