Publicacións

@article{del-valle-corte_assessing_2024,

title = {Assessing the impact of various industrial wastes on the volumetric and mechanical properties of warm mix asphalt (WMA)},

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

url = {https://www.sciencedirect.com/science/article/pii/S2214509524012257},

doi = {10.1016/j.cscm.2024.e04073},

issn = {2214-5095},

year  = {2024},

date = {2024-12-01},

urldate = {2026-07-28},

journal = {Case Studies in Construction Materials},

volume = {21},

pages = {e04073},

abstract = {In recent decades, sustainable practices in pavement construction have been studied to promote circular economy principles and protect the environment. This research seeks to determine the potential benefits of using three different industrial waste materials in formulating warm mix asphalt (WMA). WMA mixes were prepared using ground granulated blast furnace slag (GGBFS) from steel production and biomass fly ash (FA) from the paper industry as virgin filler replacement, and an industrial waste rich in lignin biopolymer (LB) from the hardboard industry as a partial substitute for binder. The study analyzed their volumetric and mechanical properties, including moisture damage resistance, resilient modulus, fatigue resistance, permanent deformation, and abrasion resistance, which were compared with those of a control WMA mix (without any waste). The findings provide insights into an important gap in the literature on the use of GGBFS and LB in WMA. GGBFS-2 mix (75 % GGBFS) exhibited the best fatigue performance but the highest axial deformation and rut depth. LB-1 mix (5 % LB) performed slightly worse than the control WMA mix in all tests.},

keywords = {Fly ash, Ground granulated blast furnace slag, Industrial wastes, moisture damage resistance, warm mix asphalt, Waste rich in lignin biopolymer},

pubstate = {published},

tppubtype = {article}

}

@article{sequeira_influence_2023,

title = {The Influence of Recycled Cement, Fly Ash, and Magnesium Oxide on the Mechanical Performance of Sustainable Cementitious Materials},

author = {Lucas Sequeira and Blas Cantero-Chaparro and Miguel Bravo and Jorge Brito and César Medina},

url = {https://www.mdpi.com/1996-1944/16/7/2760},

doi = {10.3390/ma16072760},

issn = {1996-1944},

year  = {2023},

date = {2023-01-01},

urldate = {2026-08-13},

journal = {Materials},

volume = {16},

number = {7},

pages = {2760},

publisher = {Multidisciplinary Digital Publishing Institute},

abstract = {In the construction industry, cement is the most widely used material. So, to achieve greater sustainability in this industry, it is imperative to improve the sustainability of this material. One way to reduce the ecological footprint of cement is to replace it, even if partially, with other more sustainable materials that can act as binders. This paper analyses the mechanical properties of more sustainable mortars containing recycled cement (RC), fly ash (FA), and magnesium oxide (MgO). Different types of binary, ternary, and quaternary mortars were used: containing recycled cement (5% and 10%), fly ash (10% and 20%), and MgO (7.5% and 15%). An experimental campaign was carried out analysing air content, density, compressive and flexural strengths, modulus of elasticity, and ultrasonic pulse velocity. The ternary mortars showed decreases between 0.4% (M-5RC10FA) and 35.3% (M-10RC15Mg) in terms of compressive strength at 365 days (compared to RM), when the theoretically expected decrease (the sum of the decreases obtained with the individual incorporation of these materials) would be between 16.6% and 41.5%, respectively. The results obtained allow for concluding that the joint use of these materials in ternary mortars improves the mechanical capacity, relative to the individual incorporation of each material in binary mortars.},

keywords = {Fly ash, magnesium oxide, Mechanical properties, quaternary mortars, recycled cement, Sustainability},

pubstate = {published},

tppubtype = {article}

}

@article{rodriguez-alvaro_internally_2020,

title = {Internally cured high performance concrete with magnesium based expansive agent using coal bottom ash particles as water reservoirs},

author = {Roberto Rodríguez-Álvaro and Belén González-Fonteboa and Sindy Seara-Paz and Khandaker M. A. Hossain},

url = {https://www.sciencedirect.com/science/article/pii/S095006182030982X},

doi = {10.1016/j.conbuildmat.2020.118977},

issn = {0950-0618},

year  = {2020},

date = {2020-08-01},

urldate = {2026-08-06},

journal = {Construction and Building Materials},

volume = {251},

pages = {118977},

abstract = {Shrinkage is one of the main concerns related to high performance concrete (HPC) durability. Its high density paste, consequence of a low water to binder ratio, can be unprofitable if cracks appear due to excessive tension when volume changes are restrained. Therefore, volume stability is a priority. In this work, three different strategies have been studied with that purpose: integration of fly ash as a low reactive supplementary cementitious material, internal curing via coal bottom ash particles as water reservoirs and the use of an expansive agent based on magnesium oxide (MEA). Many research works address the three shrinkage reduction strategies individually. However, studies regarding their simultaneous use are not prevalent so this work proposes its combined application. Results indicate that internal curing and MEA have a synergistic effect in HPC. Internal curing enhances MEA expansion due to the lack of water in this kind of concrete, contributing to autogenous shrinkage compensation. When concrete is affected by air-drying conditions, the use of MEA, internal curing, or both together make shrinkage to increase. MEA effectively expands in wet cured HPC although internal curing is not effective in this condition due to the absence of self-desiccation and limited porous aggregate water desorption. Taking into account the effects of each shrinkage reduction strategy and curing condition, it has been concluded that the use of fly ash as supplementary cementitious material, internal curing and MEA is recommended together with prevention of water evaporation from HPC surface.},

keywords = {Autogenous shrinkage, Coal bottom ash, Drying shrinkage, Fly ash, Internal curing, Magnesium based expansive agent, Swelling},

pubstate = {published},

tppubtype = {article}

}