Papers

@article{pasandin_preliminary_2025,

title = {Preliminary Characterization of Lignin-Modified Binder for Half-Warm-Mix Asphalt},

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

url = {https://www.mdpi.com/2073-4360/17/8/1019},

doi = {10.3390/polym17081019},

issn = {2073-4360},

year  = {2025},

date = {2025-01-01},

urldate = {2025-01-01},

journal = {Polymers},

volume = {17},

number = {8},

pages = {1019},

publisher = {Multidisciplinary Digital Publishing Institute},

abstract = {There is a growing trend to promote circular economy practices and reduce petroleum-derived product consumption in the paving sector. In this context, a liquid lignin-rich industrial waste was incorporated at 0% (control), 5%, 10%, 15%, and 20% into a bitumen emulsion to manufacture a lignin-based biobinder for half-warm-mix asphalt (HWMA). The mix of the bitumen emulsion and the industrial waste was made using an Ultra-turrax device, with the final mixing temperature monitored using a thermographic camera. Microstructure analysis was conducted using scanning electron microscopy (SEM). The bitumen was extracted and characterized using needle penetration tests at several temperatures. Additionally, the ring-and-ball softening point, penetration index, and ductility were assessed. Incorporating up to 5% of lignin-rich industrial waste led to a lignin-based biobinder that could be used for a more sustainable and bitumen-efficient HWMA production.},

keywords = {biobinder, half-warm-mix asphalt, lignin, microstructure, Rheology},

pubstate = {published},

tppubtype = {article}

}

@article{martinez-garcia_design_2019,

title = {Design and properties of cement coating with mussel shell fine aggregate},

author = {Carolina Martínez-García and Belén González-Fonteboa and Diego Carro-López and Fernando Martínez-Abella},

url = {https://www.sciencedirect.com/science/article/pii/S0950061819311006},

doi = {10.1016/j.conbuildmat.2019.04.211},

issn = {0950-0618},

year  = {2019},

date = {2019-08-01},

urldate = {2026-08-06},

journal = {Construction and Building Materials},

volume = {215},

pages = {494–507},

abstract = {The production of farmed mussels amounts to millions of tonnes across over 40 countries. Shell waste resulting from this production has a very significant environmental impact. In Galicia, mussel shell waste is transformed, using low impact heat treatment, into a by-product that can be used as an aggregate. This research investigates cement-coating mortars where conventional aggregate is partially replaced with mussel shell aggregate. Reference mortars and mortars with mussel shell sand replacing conventional sand at different rates: 25%, 50% and 75% have been tested. Results show the feasibility of mussel shell in cement coatings at an optimal replacement rate of 25% of the conventional aggregate.},

keywords = {Cement coating, microstructure, Mussel shell, Porosity, Water vapour permeability, Workable life progression},

pubstate = {published},

tppubtype = {article}

}

@article{martinez-garcia_impact_2019,

title = {Impact of mussel shell aggregates on air lime mortars. Pore structure and carbonation},

author = {Carolina Martínez-García and Belén González-Fonteboa and Diego Carro-López and Fernando Martínez-Abella},

url = {https://www.sciencedirect.com/science/article/pii/S0959652619301386},

doi = {10.1016/j.jclepro.2019.01.121},

issn = {0959-6526},

year  = {2019},

date = {2019-04-01},

urldate = {2026-08-06},

journal = {Journal of Cleaner Production},

volume = {215},

pages = {650–668},

abstract = {Galician “Rías”·conditions (extension, water temperature …. ) enable the production of excellent quality cultured mussels. This leads Spain to be the third producer country in the world. Cannery industry (35% of the total cultured mussel production) generates 25000 tons of mussel shell waste per year. Hence, it is necessary to find a sustainable use for this material. The purpose of this work is to verify the most significant changes in the properties of air lime coating mortar when replacing limestone sand with mussel shell sand. Two different air limes have been used: non-aged hydrated commercial lime powder and 10 month-old slaked lime putty. Reference mortars and mortars with mussel shell aggregate as a substitute for limestone aggregate at different rates - 25%, 50% and 75% - have been tested. The behaviour of mortars at the age of one year from kneading has been studied. Studies show that mussel shell increases the pore volume of air lime mortar mixtures, which means a reduction in the mortar's workability and density. The poor paste-aggregate cohesion of mussel shell particles in the air lime matrix worsen the mortar mechanical strength results, which is confirmed by ultrasound test results. Carbonation at this age and hygric behaviour are properties that improve with mussel shell content.},

keywords = {Air content, Air lime, Capillarity, Coating mortar, microstructure, Mussel shell},

pubstate = {published},

tppubtype = {article}

}