TY - CHAP
T1 - Elastic Moduli of Cement-Bitumen Treated Materials and Existing Pavement Structure During Early Curing
T2 - A Case Study
AU - Bastos, Juceline
AU - Bérubé, Marc André
AU - Lachance-Tremblay, Éric
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.
PY - 2026
Y1 - 2026
N2 - Pavement structures incorporating Cement–Bitumen Treated Materials (CBTM) provide a sustainable approach for rehabilitating distressed pavements. However, the field-scale spatial variability of CBTM and its early-age stiffness evolution remain poorly understood, limiting predictions for traffic reopening and overlay placement. This paper investigated early-age stiffness development and spatial variability of CBTM, along with its interaction with the existing pavement, in a rehabilitation in Blainville, Canada. Deflections were recorded across nine subareas at 0, 24, and 48 h, and elastic moduli were backcalculated and temperature-corrected. Non-parametric analyses assessed differences among CBTM groups, complemented by descriptive statistics for the existing pavement. CBTM exhibited rapid stiffness gain, with longitudinal variability exceeding transversal variability. Integrating in-situ deflection monitoring, temperature-corrected backcalculation, and continuous defect tracking offers a robust framework for predicting early-age CBTM performance and supporting sustainable, informed pavement rehabilitation decisions.
AB - Pavement structures incorporating Cement–Bitumen Treated Materials (CBTM) provide a sustainable approach for rehabilitating distressed pavements. However, the field-scale spatial variability of CBTM and its early-age stiffness evolution remain poorly understood, limiting predictions for traffic reopening and overlay placement. This paper investigated early-age stiffness development and spatial variability of CBTM, along with its interaction with the existing pavement, in a rehabilitation in Blainville, Canada. Deflections were recorded across nine subareas at 0, 24, and 48 h, and elastic moduli were backcalculated and temperature-corrected. Non-parametric analyses assessed differences among CBTM groups, complemented by descriptive statistics for the existing pavement. CBTM exhibited rapid stiffness gain, with longitudinal variability exceeding transversal variability. Integrating in-situ deflection monitoring, temperature-corrected backcalculation, and continuous defect tracking offers a robust framework for predicting early-age CBTM performance and supporting sustainable, informed pavement rehabilitation decisions.
KW - Cement–Bitumen Treated Materials (CBTM)
KW - Early-age stiffness
KW - Rehabilitation
KW - Spatial variability
UR - https://www.scopus.com/pages/publications/105049092472
U2 - 10.1007/978-3-032-30655-5_3
DO - 10.1007/978-3-032-30655-5_3
M3 - Book Chapter
AN - SCOPUS:105049092472
T3 - RILEM Bookseries
SP - 16
EP - 23
BT - Proceedings of the 2nd RILEM International Symposium on Bituminous Materials (ISBM 2026)
PB - Springer Science and Business Media B.V.
ER -