Delta Tc (ΔTc) is a derived asphalt binder property that has been gaining attention for the last decade. It has become a topic of focus to both researchers in the asphalt binder technical community and user agencies seeking physical property parameters that will improve hot mix asphalt pavement performance.

It is generally accepted that ΔTc targets cracking behavior that is affected by asphalt binder durability related to aging of the binder in an asphalt mixture. More specifically, ΔTc provides insight into the relaxation properties of a binder that can contribute to non-load related cracking or other age-related embrittlement distresses in an asphalt pavement.

AI published this document to provide a single, up-to-date reference on the topic of ΔTc. It is hoped that this report will serve as a focal point for dialog among agency users, industry producers, academia, and others with a need to have a more detailed understanding of ΔTc.

Asphalt Institute Technical Document:

State-of-the-Knowledge: Use of the Delta Tc Parameter to Characterize Asphalt Binder Behavior
Asphalt Institute Technical Advisory Committee
Copyright © Asphalt Institute 2019 All Rights Reserved
ISBN: 978-1-934154-77-9

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