Publicacións

@article{noauthor_mechanical_2026,

title = {Mechanical performance of warm mix asphalt incorporating polyolefin waste as aggregate},

author = {Jorge Del-Valle-Corte and Ignacio Pérez-Pérez and Ana M. Rodríguez-Pasandín and Pablo Orosa-Iglesias and María José Abad},

url = {https://www.researchgate.net/publication/398597537_Mechanical_performance_of_warm_mix_asphalt_incorporating_polyolefin_waste_as_aggregate},

doi = {10.1080/10298436.2025.2597314},

issn = {1029-8436},

year  = {2025},

date = {2025-12-11},

urldate = {2025-12-11},

journal = {International Journal of Pavement Engineering},

volume = {26},

issue = {1},

abstract = {The widespread use of plastics in modern society, coupled with the challenges of recycling certain types, has driven the exploration of their application in asphalt mixtures to promote circular economy principles and mitigate environmental impact. This laboratory study explores the feasibility of using polyolefin waste as a partial aggregate replacement in warm mix asphalt (WMA) using the dry process without additional treatment. The research began by determining the optimum bitumen content through a mixture design based on the moisture damage resistance test. This same test was then used to identify the optimum polyolefin waste content from seven different WMA mixtures, introducing the coarse-sized polymer as an aggregate substitute, at mass-based replacement rates (0.5%, 1.0%, 1.5%, 5.0% and 10.0%) with volume control, and employing two distinct incorporation methods. Subsequently, the control and polyolefin-modified mixtures were evaluated regarding volumetric and mechanical properties, including abrasion resistance, stiffness, thermal susceptibility, resistance to permanent deformation and fatigue life. The findings demonstrate that incorporating polyolefin waste at a substitution level of 0.5% enhances both abrasion and moisture damage resistance, effectively repurposing a challenging waste material. However, despite these benefits, it also presents some limitations in permanent deformation resistance compared to the control mixture.},

keywords = {fatigue life, moisture damage resistance, permanent deformation, plastic waste, polyolefin, Stiffness, warm mix asphalt},

pubstate = {published},

tppubtype = {article}

}

@article{orosa_evaluation_2022,

title = {Evaluation of the shear and permanent deformation properties of cold in-place recycled mixtures with bitumen emulsion using triaxial tests},

author = {Pablo Orosa-Iglesias and Ignacio Pérez-Pérez and Ana M. Rodríguez-Pasandín},

url = {https://www.sciencedirect.com/science/article/pii/S0950061822007371},

doi = {10.1016/j.conbuildmat.2022.127054},

issn = {0950-0618},

year  = {2022},

date = {2022-04-01},

urldate = {2026-08-11},

journal = {Construction and Building Materials},

volume = {328},

pages = {127054},

abstract = {The cold in-place recycling (CIR) technique is a road rehabilitation method suitable for a circular economy. Triaxial tests have proven to be suitable for studying the mechanical behaviour of cold mixtures. In this study, CIR specimens were prepared using a gyratory compactor with different proportions of bitumen emulsion. The Mohr–Coulomb diagrams and shear parameters were obtained by conducting monotonic triaxial tests at different confining pressures. The binder content provided adequate cohesion; however, an excess of binder reduced internal friction. Subsequently, repeated load permanent deformation triaxial tests were performed. Accordingly, critical stress ratios between 20% and 30% were obtained, and the mix with a 2.50% binder exhibited the best response. Lastly, two permanent deformation prediction models were fitted to the measured results. For high deformations, the Paute model underestimated the deformations, whereas the Huurman model demonstrated the best fit.},

keywords = {Bitumen emulsion, Bitumen stabilized material, Cold in-place recycling, Gyratory compactor, permanent deformation, Prediction model, Reclaimed asphalt pavement, Rutting, Shear properties, Triaxial testing},

pubstate = {published},

tppubtype = {article}

}

@article{pasandin_valorisation_2022,

title = {Valorisation of lignin-rich industrial byproduct into half-warm mix reclaimed asphalt with enhanced performance},

author = {Ana M. Rodríguez-Pasandín and E. Nardi and N. Pérez-Barge and E. Toraldo},

url = {https://www.sciencedirect.com/science/article/pii/S0950061821035030},

doi = {10.1016/j.conbuildmat.2021.125770},

issn = {0950-0618},

year  = {2022},

date = {2022-01-01},

urldate = {2026-08-11},

journal = {Construction and Building Materials},

volume = {315},

pages = {125770},

abstract = {To promote a circular economy and sustainable development, the possibility of using a lignin-rich industrial byproduct as a partial substitute for asphalt emulsions in road pavements is analysed. A half-warm mix reclaimed asphalt (HWMRA)-type AC 16 surf S, manufactured with 100% reclaimed asphalt pavement, is selected. Substitution percentages of 0% (control mixture), 5%, 10%, 15%, and 20% are employed. The microstructure of the blend of the byproduct and asphalt emulsion is observed using scanning electron microscopy. The water resistance of the mixture is investigated using indirect tensile tests, as well as its volumetric properties. The stiffness, thermal susceptibility by indirect tensile tests, and resistance to permanent deformation by confined uniaxial compression tests and Hamburg wheel tracking tests are also studied. The optimum percentage of byproduct substitution is 5%, resulting in an enhanced HWMRA with a slightly better water resistance, higher resistance to permanent deformation at low and medium environmental temperatures, and higher indirect tensile strength and stiffness than those of the control mix.},

keywords = {Byproduct, HWMRA, lignin, permanent deformation, RAP, SEM, Stiffness, Water resistance},

pubstate = {published},

tppubtype = {article}

}