Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Short-Term Resilient Behaviour and Its Evolution With Curing in Cold In-Place Recycled Asphalt Mixtures
Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG ; [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. ; The authors would like to acknowledge funding for the project BIA2016-80317-R/AEI/10.13039/501100011033 from the Spanish Ministry of Science and Innovation, with an associated pre-doctoral scholarship for the training of research workers (FPI) BES-2017-079633. The authors would also like to express their sincere gratitude to ARIAS INFRAESTRUCTURAS, and ECOASFALT for their generous donation of RAP and bitumen emulsions, respectively, for this research. The funding of the open access charge was made by Universidade da Coruña/CISUG
Short-Term Resilient Behaviour and Its Evolution With Curing in Cold In-Place Recycled Asphalt Mixtures
Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG ; [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. ; The authors would like to acknowledge funding for the project BIA2016-80317-R/AEI/10.13039/501100011033 from the Spanish Ministry of Science and Innovation, with an associated pre-doctoral scholarship for the training of research workers (FPI) BES-2017-079633. The authors would also like to express their sincere gratitude to ARIAS INFRAESTRUCTURAS, and ECOASFALT for their generous donation of RAP and bitumen emulsions, respectively, for this research. The funding of the open access charge was made by Universidade da Coruña/CISUG
Short-Term Resilient Behaviour and Its Evolution With Curing in Cold In-Place Recycled Asphalt Mixtures
Orosa, Pablo (Autor:in) / Pérez Pérez, Ignacio (Autor:in) / Pasandín, A.R. (Autor:in)
01.01.2022
doi:10.1016/j.conbuildmat.2022.126559
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
624
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