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Evaluation of Two Laboratory-Based Design Methods for CIR Mixtures
dc.contributor.author | Orosa, Pablo | |
dc.contributor.author | Pasandín, A.R. | |
dc.contributor.author | Pérez Pérez, Ignacio | |
dc.date.accessioned | 2021-01-25T20:14:55Z | |
dc.date.available | 2021-01-25T20:14:55Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Orosa, P., Pasandín, A.R., Pérez, I. (2019). Evaluation of two laboratory-based design methods for CIR mixtures. 5th International Symposium on Asphalt Pavements & Environment. Padova, Italy | es_ES |
dc.identifier.uri | http://hdl.handle.net/2183/27228 | |
dc.description.abstract | [Abstract] In this laboratory research, two different methods for the design of cold in-place recycled (CIR) asphalt mixtures were compared. By the one hand, the current Spanish design method described in the Circular Order 40/2017 (current PG-4). By the other hand, the former Spanish design method described in the Circular Order 8/2001 (former PG-4). Both design methods specify different compaction mechanisms (static vs gyratory), water sensitivity test (unconfined compression strength ratio vs indirect tensile strength ratio) and different ways to obtain the added water for the samples. In order to compare both design methods, CIR samples were manufactured following both design procedures. A cationic slow setting bitumen emulsion C60B5REC was used as binder. Residual binder contents ranging from 1.5% to 5.25% were tested. Added water contents ranging from 0% to 2.75% were also tested. CIR mixtures manufactured according with the former PG-4 led to an optimum residual binder content of 2.00%. Nevertheless, it was not possible to manufacture a CIR mixture that met all the current PG-4 specifications. In this sense, despite in this last case were used higher residual binder contents, 1% of Portland cement as filler, different water contents and higher compaction energy. In this regard, the indirect tensile strength ratio was achieved, but it was impossible to achieve the dry and wet indirect tensile strength requirements. | es_ES |
dc.description.sponsorship | The authors would like to acknowledge the funding of the project BIA2016-80317-R from the Spanish Ministry of Economy and Competitiveness with an associated pre-doctoral scholarship for research workers training (FPI) BES-2017-079633. The authors also would like to express their sincere gratitude to ARIAS INFRAESTRUCTURAS for the RAP and to CEPSA for the bitumen emulsion, which was generously donated for the present research | |
dc.language.iso | eng | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/BIA2016-80317-R/ES/COMPORTAMIENTO MECANICO DE MEZCLAS ASFALTICAS RECICLADAS IN SITU CON EMULSION BITUMINOSA Y SU IMPACTO EN EL DIMENSIONAMIENTO DE FIRMES: INVESTIGACION DEL PERIODO DE MADURACION/ | |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/BES-2017-079633/ES/COMPORTAMIENTO MECANICO DE MEZCLAS ASFALTICAS RECICLADAS IN SITU CON EMULSION BITUMINOSA Y SU IMPACTO EN EL DIMENSIONAMIENTO DE FIRMES: INVESTIGACION DEL PERIODO DE MADURACION/ | |
dc.subject | Cold in-place recycled (CIR) asphalt mixture | es_ES |
dc.subject | Reclaimed asphalt pavement (RAP) | es_ES |
dc.subject | Bituminous emulsion | es_ES |
dc.subject | Design method | es_ES |
dc.subject | Gyratory compactor | es_ES |
dc.title | Evaluation of Two Laboratory-Based Design Methods for CIR Mixtures | es_ES |
dc.type | info:eu-repo/semantics/conferenceObject | es_ES |
dc.rights.access | info:eu-repo/semantics/openAccess | es_ES |
UDC.conferenceTitle | International Symposium on Asphalt Pavements & Environment (5th. 2019. Padova) | es_ES |