TY - CHAP
T1 - Effect of Compaction Temperature and Air Voids on the Viscoelastic Properties of RAP Using IRT
AU - Ximenes Cavalcante, Thamires
AU - Carret, Jean Claude
AU - Bilodeau, Kevin
AU - Feitosa de Albuquerque Lima Babadopulos, Lucas
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.
PY - 2026
Y1 - 2026
N2 - This study evaluates the reproducibility and sensitivity of the impact resonance test (IRT) as a non-destructive testing (NDT) for characterizing the viscoelastic behavior of asphalt mixtures (AM). The IRT allows determining the complex modulus (|E*|) and phase angle (φ) from the resonance response of specimens. Tests were carried out on 100% reclaimed asphalt pavement (RAP) mixtures compacted at different temperatures (110, 130, 150, and 170 ℃) and tested at various temperatures (−30 ℃ to 40 ℃) in laboratories to assess the method’s reproducibility. Differences between laboratories remained below ±2.5% for |E*| and ±1.0° for φ, confirming the reproducibility. The results also showed that increasing the compaction temperature raises |E*| and reduces φ due to additional binder aging, while a higher air void content decreases |E*|, as expected for the aging effect. These findings demonstrate that the IRT is a reliable and reproducible NDT for assessing the effects of compaction parameters on AM, contributing to the ongoing discussions within the RILEM TC MWP Committee.
AB - This study evaluates the reproducibility and sensitivity of the impact resonance test (IRT) as a non-destructive testing (NDT) for characterizing the viscoelastic behavior of asphalt mixtures (AM). The IRT allows determining the complex modulus (|E*|) and phase angle (φ) from the resonance response of specimens. Tests were carried out on 100% reclaimed asphalt pavement (RAP) mixtures compacted at different temperatures (110, 130, 150, and 170 ℃) and tested at various temperatures (−30 ℃ to 40 ℃) in laboratories to assess the method’s reproducibility. Differences between laboratories remained below ±2.5% for |E*| and ±1.0° for φ, confirming the reproducibility. The results also showed that increasing the compaction temperature raises |E*| and reduces φ due to additional binder aging, while a higher air void content decreases |E*|, as expected for the aging effect. These findings demonstrate that the IRT is a reliable and reproducible NDT for assessing the effects of compaction parameters on AM, contributing to the ongoing discussions within the RILEM TC MWP Committee.
KW - Air Voids
KW - Compaction Temperature
KW - Complex Modulus
KW - Impact Resonance Test
KW - Phase Angle
KW - Reclaimed Asphalt Pavement
UR - https://www.scopus.com/pages/publications/105047430933
U2 - 10.1007/978-3-032-29857-7_68
DO - 10.1007/978-3-032-29857-7_68
M3 - Book Chapter
AN - SCOPUS:105047430933
T3 - RILEM Bookseries
SP - 447
EP - 452
BT - Proceedings of the 2nd RILEM International Symposium on Bituminous Materials (ISBM 2026)
PB - Springer Science and Business Media B.V.
ER -