Abstract
This paper proposed novel load-level selection pragmatics of Semi-Circular Bending (SCB) test that could practically be utilised to characterise fatigue performance of asphalt mixtures. A strain-controlled technique was devised and illustrated to determine the load input as a prerequisite to run dynamic SCB test. Three initial strains were selected as target criteria to determine the loads. The key features of the proposed approach were discussed with test results on 216 specimens. It was concluded that the formulated system rationally determined the load levels of dynamic SCB test to obtain response parameters, and is envisioned to replace the current conventional trial-and-error method.
Acknowledgements
The authors are also thankful to Mr. Alan Feeley, Technical Director of Pavetest Pty Ltd of Australia for his support in developing the computer program module to run the dynamic SCB test.
Disclosure statement
No potential conflict of interest was reported by the authors.
ORCID
Gourab Saha http://orcid.org/0000-0001-8007-2159
Krishna Prapoorna Biligiri http://orcid.org/0000-0002-2313-0815