Short-Term Resilient Behaviour and Its Evolution With Curing in Cold In-Place Recycled Asphalt Mixtures
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http://hdl.handle.net/2183/30004
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Short-Term Resilient Behaviour and Its Evolution With Curing in Cold In-Place Recycled Asphalt MixturesFecha
2022Cita bibliográfica
Orosa, P., Pérez, I., Pasandín, A. R. (2022). Short-term resilient behaviour and its evolution with curing in cold in-place recycled asphalt mixtures. Construction and Building Materials, 323, 126559. DOI: 10.1016/j.conbuildmat.2022.126559
Resumen
[Abstract] This study evaluates the short-term resilient behaviour of cold in-place recycled (CIR) asphalt mixtures with bitumen emulsion when they are more similar to non-cohesive granular materials than to conventional hot mixtures. Gyratory compacted CIR specimens were manufactured using different proportions of bituminous emulsion and water, and dynamic triaxial tests were conducted at different curing times. The resilient moduli were obtained experimentally and fitted using three numerical models. Characteristic nonlinear elastic behaviour and an increase in stiffness with curing time were observed. Water loss during curing and stiffness increase were found to be related. Mixtures with 2.50% residual bitumen and 2.75% added water showed the best short-term stiffness evolution.
Palabras clave
Cold in-place recycling (CIR)
Reclaimed asphalt pavement (RAP)
Bitumen emulsion
Asphalt mixture
Triaxial testing
Gyratory compactor
Nonlinear elastic behaviour
Resilient modulus
Resilient behaviour
Reclaimed asphalt pavement (RAP)
Bitumen emulsion
Asphalt mixture
Triaxial testing
Gyratory compactor
Nonlinear elastic behaviour
Resilient modulus
Resilient behaviour
Descripción
Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG
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Atribución 4.0 Internacional (CC BY 4.0)