Publicacións

@article{orosa_evaluation_2023,

title = {Evaluation of water loss and stiffness increase in cold recycled mixes during curing},

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

url = {https://www.sciencedirect.com/science/article/pii/S2214509523000566},

doi = {10.1016/j.cscm.2023.e01877},

issn = {2214-5095},

year  = {2023},

date = {2023-07-01},

urldate = {2026-08-13},

journal = {Case Studies in Construction Materials},

volume = {18},

pages = {e01877},

abstract = {Implementing cold solutions is one of the primary efforts in the road sector to counteract CO2 emissions and climate change. Using cold recycled mixtures (CRM) permits the reuse of up to 100% of reclaimed asphalt pavement (RAP). This research examines how CRM develop their resilient response during the curing process. Using cyclic loading dynamic triaxial (DTx) testing, resilient moduli of CRM made with various proportions of bitumen emulsion were determined. Curing times from 0 days to 18 months were assessed. Binder content and water loss speed proved to be fundamental factors in the evolution of the resilient moduli of the CRM studied. CRM with a binder content of 2.50% exhibited the best short-term response, while those with a binder content of 3.00% showed greater stiffness values over more extended curing. Once water losses stopped, the CRM continued showing changes in stiffness, proving their evolutionary response.},

keywords = {Bitumen emulsion, Cold recycled mixtures (CRM), Curing, Nonlinear elastic behavior, Reclaimed asphalt pavement (RAP), Triaxial testing},

pubstate = {published},

tppubtype = {article}

}

@article{orosa_numerical_2022,

title = {Numerical simulation of the stiffness evolution with curing of pavement sections rehabilitated using cold in-place recycling technology},

author = {Pablo Orosa-Iglesias and Luis Medina-Rodríguez and Jesús Fernández-Ruíz and Ignacio Pérez-Pérez and Ana M. Rodríguez-Pasandín},

url = {https://www.sciencedirect.com/science/article/pii/S0950061822011643},

doi = {10.1016/j.conbuildmat.2022.127487},

issn = {0950-0618},

year  = {2022},

date = {2022-06-01},

urldate = {2026-08-10},

journal = {Construction and Building Materials},

volume = {335},

pages = {127487},

abstract = {Cold in-place recycling (CIR) technologies are becoming one of the main bets in the road sector to promote the reduction of greenhouse gas emissions. This technique also contributes to the circular economy, reusing 100% of the RAP from worn roads. In this research, numerical simulations of CIR sections are presented. The nonlinear behaviour of the CIR-base material is modelled using three predictive models based on triaxial test results. Variations in the performance depending on the type of subbase, the curing of the CIR-base material and its thickness, and the effect of the wearing-course were analysed. The response of the sections with unbound granular subbase proved to be very sensitive to variations in the parameters studied, and the increase in CIR base thickness was beneficial, while the opposite occurred with a cement-treated subbase.},

keywords = {3D numerical model, Bitumen emulsion, Bitumen stabilised material (BSM), Cold in-place recycling (CIR), Nonlinear elastic behaviour, Reclaimed asphalt pavement (RAP), Rutting, Triaxial testing},

pubstate = {published},

tppubtype = {article}

}

@article{orosa_short-term_2022,

title = {Short-term resilient behaviour and its evolution with curing in cold in-place recycled asphalt mixtures},

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

url = {https://www.sciencedirect.com/science/article/pii/S0950061822002513},

doi = {10.1016/j.conbuildmat.2022.126559},

issn = {0950-0618},

year  = {2022},

date = {2022-03-01},

urldate = {2026-08-11},

journal = {Construction and Building Materials},

volume = {323},

pages = {126559},

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.},

keywords = {Asphalt mixture, Bitumen emulsion, Cold in-place recycling (CIR), Gyratory compactor, Nonlinear elastic behaviour, Reclaimed asphalt pavement (RAP), Resilient behaviour, resilient modulus, Triaxial testing},

pubstate = {published},

tppubtype = {article}

}

@article{orosa_compaction_2021,

title = {Compaction and volumetric analysis of cold in-place recycled asphalt mixtures prepared using gyratory, static, and impact procedures},

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

url = {https://www.sciencedirect.com/science/article/pii/S0950061821013805},

doi = {10.1016/j.conbuildmat.2021.123620},

issn = {0950-0618},

year  = {2021},

date = {2021-08-01},

urldate = {2026-08-06},

journal = {Construction and Building Materials},

volume = {296},

pages = {123620},

abstract = {Compaction is one of the most important factors to be considered while manufacturing laboratory samples of cold in-place recycled (CIR) mixtures. In this study, the effect of three laboratory compaction procedures (static, gyratory, and impact) on the volumetric performance of CIR mixtures was investigated. CIR specimens were manufactured with the same proportion of added water and bitumen emulsion, and using several levels of compaction, varying the number of gyrations and blows. The volumetric properties were evaluated by different procedures, both before and after curing. A comparison between the laboratory results of the different tests, the design target values, and actual in-field values was performed. It was observed that gyratory compaction proved to be the most versatile and one that best represented the real compaction. The bulk density procedure by dimensions was useful for laboratory design; however, it overestimated the sizes of the air void content by more than 10% compared to the field values.},

keywords = {Asphalt mixture, Bitumen emulsion, Bulk density, Cold in-place recycling/recycled (CIR), Compaction, Gyratory compactor, Impact compaction, Marshall hammer, Reclaimed asphalt pavement (RAP), Static compaction, Volumetric properties},

pubstate = {published},

tppubtype = {article}

}

@article{orosa_assessment_2020,

title = {Assessment of two laboratory design methods for CIR mixtures with bitumen emulsion based on static and gyratory compaction},

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

url = {https://www.sciencedirect.com/science/article/pii/S0950061820326726},

doi = {10.1016/j.conbuildmat.2020.120667},

issn = {0950-0618},

year  = {2020},

date = {2020-12-01},

urldate = {2026-08-06},

journal = {Construction and Building Materials},

volume = {265},

pages = {120667},

abstract = {To expand the body of knowledge regarding cold in-place recycled mixtures, this study presents two different laboratory design methods. The main differences between the methods are the compaction procedures (static and gyratory) and the required strength tests (unconfined compressive strength and indirect tensile strength). Specimens were manufactured using both methods, with different contents of bitumen emulsion and added water. The effects of adding Portland cement and increasing the compaction energy were also investigated. The compliance with strength criteria was reviewed, and the optimal bitumen emulsion and water contents were identified. The requirements of the specification based on gyratory compaction proved to be excessively high. A reduction of the values is suggested, and further research is encouraged to allow new benchmarks to be set.},

keywords = {Asphalt mixture, Bitumen emulsion, Cold in-place recycling (CIR), Gyratory compactor, Mix design method, Reclaimed asphalt pavement (RAP)},

pubstate = {published},

tppubtype = {article}

}