Ductility
Reviewed by licensed engineers
Checked against its sources by licensed professional engineers on the previous site, where reviewers weren’t recorded by name.
The ductility test (Figure 1) measures asphalt binder ductility by stretching a standard-sized briquette of asphalt binder (Figure 2) to its breaking point. The stretched distance in centimeters at breaking is then reported as ductility. Like the penetration test, this test has limited use since it is empirical and conducted at only one temperature (25° C (77° F)).


Standard Test Methods
- AASHTO T 51 and ASTM D 113: Ductility of Bituminous Materials
Teaching this? Figures and worked examples are free to use with credit. Course reading lists
Cite this page
APA
Pavement Interactive. (2026, November 1). Ductility. HeadLight. Retrieved [the date you read it], from https://pavementinteractive.org/reference-desk/testing/binder-tests/ductility/
ASCE
Pavement Interactive. (2026). “Ductility.” HeadLight, <https://pavementinteractive.org/reference-desk/testing/binder-tests/ductility/> ([the date you read it]).
BibTeX
@misc{pavint-ductility,
author = {{Pavement Interactive}},
title = {Ductility},
year = {2026},
publisher = {HeadLight},
howpublished = {\url{https://pavementinteractive.org/reference-desk/testing/binder-tests/ductility/}},
note = {Accessed [date]}
}