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28 results on '"Blanco-Fernandez, Elena"'

4. Artificial reefs built by 3D printing: Systematisation in the design, material selection and fabrication

Author

Yoris-Nobile, Adrian I., Slebi-Acevedo, Carlos J., Lizasoain-Arteaga, Esther, Indacoechea-Vega, Irune, Blanco-Fernandez, Elena, Castro-Fresno, Daniel, Alonso-Estebanez, Alejandro, Alonso-Cañon, Sara, Real-Gutierrez, Carlos, Boukhelf, Fouad, Boutouil, Mohamed, Sebaibi, Nassim, Hall, Alice, Greenhill, Sam, Herbert, Roger, Stafford, Richard, Reis, Bianca, van der Linden, Pieter, Gómez, Oscar Babé, Meyer, Hugo Sainz, Franco, João N., Almada, Emanuel, Borges, Maria Teresa, Sousa-Pinto, Isabel, Tuaty-Guerra, Miriam, and Lobo-Arteaga, Jorge

Published
2023
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8. Artificial reefs in the North –East Atlantic area: Present situation, knowledge gaps and future perspectives

Author

Reis, Bianca, van der Linden, Pieter, Pinto, Isabel Sousa, Almada, Emanuel, Borges, Maria Teresa, Hall, Alice E., Stafford, Rick, Herbert, Roger J.H., Lobo-Arteaga, Jorge, Gaudêncio, Maria José, Tuaty-Guerra, Miriam, Ly, Océane, Georges, Valentin, Audo, Mariane, Sebaibi, Nassim, Boutouil, Mohamed, Blanco-Fernandez, Elena, and Franco, João N.

Published
2021
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16. Long-Term Interactions of Cementitious Materials in the Marine Environment

Author

Boukhelf, Fouad, Sebaibi, Nassim, Boutouil, Mohamed, Yoris-Nobile, Adrian I., Blanco-Fernandez, Elena, Castro-Fresno, Daniel, Real-Gutierrez, Carlos, Herbert, Roger J. H., Greenhill, Sam, Reis, Bianca, Franco, João N., Borges, Maria Teresa, Sousa-Pinto, Isabel, van der Linden, Pieter, Gómez, Oscar Babé, Meyer, Hugo Sainz, Almada, Emanuel, Stafford, Rick, Danet, Valentin, Lobo-Arteaga, Jorge, Tuaty-Guerra, Miriam, E. Hall, Alice, and MARE - Centro de Ciências do Mar e do Ambiente

Subjects
eco-material, Renewable Energy, Sustainability and the Environment, Computer Networks and Communications, geopolymer binder, Geography, Planning and Development, Energy Engineering and Power Technology, 3D printing, Building and Construction, Environmental Science (miscellaneous), Management, Monitoring, Policy and Law, colonization, Hardware and Architecture, micro/macro-organisms, Computer Science (miscellaneous), SDG 13 - Climate Action, SDG 7 - Affordable and Clean Energy, SDG 14 - Life Below Water, artificial reefs
Abstract

Funding Information: Funding was provided by Interreg Atlantic area through the project EAPA_174/2016-3DPARE-Artificial Reef 3D Printing for Atlantic area granted to the Faculty of Sciences of the University of Porto; Bournemouth University; ESITC—École Supérieure d’Ingénieurs des Travaux de la Construction de Caen; University of Cantabria; and IPMA—Instituto Português do Mar e da Atmosfera. Other supports were provided by MARE (FCT/MCTES–UIDB/04292/2020), by CIIMAR (FCT/MCTES–UIDB/04423/2020 and UIDP/04423/2020), and by the project LA/P/0069/2020 granted to the Associate Laboratory ARNET. Funding Information: The results presented in this article were obtained in the framework of the collaborative project Artificial Reef 3D Printing for Atlantic Area (3DPARE), co-funded by the European Regional Development Fund through the European cross-border program INTERREG Atlantic Area. Publisher Copyright: © 2022 by the authors. This paper deals with the evolution monitoring of biomass colonization and mechanical properties of 3D printed eco-materials/mortars immersed in the sea. Measurements of tensile strength, compressive strength, and Young’s modulus were determined on samples deployed along the Atlantic coast of Europe, in France, United Kingdom, Spain, and Portugal. The samples were manufactured using 3D printing, where six mix designs with a low environmental impact binder were used. These mortars were based on geopolymer and cementitious binders (Cement CEM III), in which sand is replaced by three types of recycled sand, including glass, seashell, and limestone by 30%, 50%, and 100% respectively. The colonization of concrete samples by micro/macro-organisms and their durability were also evaluated after 1, 3, 6, 12, and 24 months of immersion. The results showed that both biomass colonization and mechanical properties were better with CEM III compared to geopolymer-based compositions. Therefore, the mixed design optimized according to mechanical properties show that the use of CEM III should be preferred over these geopolymer binders in 3D printed concrete for artificial reef applications. publishersversion published

Published
2022

17. On the Properties Evolution of Eco-Material Dedicated to Manufacturing Artificial Reef via 3D Printing: Long-Term Interactions of Cementitious Materials in the Marine Environment

Author

Boukhelf, Fouad, primary, Sebaibi, Nassim, additional, Boutouil, Mohamed, additional, Yoris-Nobile, Adrian I., additional, Blanco-Fernandez, Elena, additional, Castro-Fresno, Daniel, additional, Real-Gutierrez, Carlos, additional, Herbert, Roger J. H., additional, Greenhill, Sam, additional, Reis, Bianca, additional, Franco, João N., additional, Borges, Maria Teresa, additional, Sousa-Pinto, Isabel, additional, van der Linden, Pieter, additional, Gómez, Oscar Babé, additional, Meyer, Hugo Sainz, additional, Almada, Emanuel, additional, Stafford, Rick, additional, Danet, Valentin, additional, Lobo-Arteaga, Jorge, additional, Tuaty-Guerra, Miriam, additional, and E. Hall, Alice, additional

Published
2022
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20. Life cycle assessment (LCA) and multi-criteria decision-making (MCDM) analysis to determine the performance of 3D printed cement mortars and geopolymers.

Author

Yoris-Nobile, Adrian I., Lizasoain-Arteaga, Esther, Slebi-Acevedo, Carlos J., Blanco-Fernandez, Elena, Alonso-Cañon, Sara, Indacoechea-Vega, Irune, and Castro-Fresno, Daniel

Subjects
MORTAR, PRODUCT life cycle assessment, MULTIPLE criteria decision making, ENVIRONMENTAL impact analysis, CEMENT, CEMENT clinkers
Abstract

A comparison between low-clinker cement and geopolymer mortars for their application in 3 D printing is discussed in this paper. The mortars are composed of materials with low environmental impact, such as cements with low clinker content, by-products of the industry and recycled aggregates. The developed mortars were both mechanically and rheologically characterized. The environmental impact was studied by LCA. To select the most suitable dosages, MCDM analysis was applied based on cost of materials, printability and LCA. Compressive strength was considered as a normalizing parameter for both the LCA and cost. The mortars showed good printability and suitable mechanical strength, being higher in the cement mortars. The LCA showed that the geopolymer mortars have a higher environmental impact due to the use of sodium hydroxide. Likewise, MCDM revealed that low-clinker cement mortars are at the top of the ranking, due to a lower environmental impact and lower cost of materials. [ABSTRACT FROM AUTHOR]

Published
2023
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22. Artificial Reefs in the North-East Atlantic Area: Present Situation, Knowledge Gaps and Future Perspectives

Author

Reis, Bianca, primary, van der Linden, Pieter, additional, Sousa Pinto, Isabel, additional, Almada, Emanuel, additional, Borges, Maria Teresa, additional, Hall, Alice E., additional, Stafford, Rick, additional, Herbert, Roger J.H., additional, Lobo-Arteaga, Jorge, additional, Gaudêncio, Maria José, additional, Tuaty-Guerra, Miriam, additional, Ly, Océane, additional, Georges, Valentin, additional, Audo, Mariane, additional, Sebaibi, Nassim, additional, Boutouil, Mohamed, additional, Blanco-Fernandez, Elena, additional, and Franco, João N., additional

Published
2021
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28. Design and Evaluation of Two Laboratory Tests for the Nets of a Flexible Anchored Slope Stabilization System

Author

Castro-Fresno, Daniel, López Q., Luis, Blanco-Fernandez, Elena, and Zamora-Barraza, David

Abstract

This paper evaluates two new tests to characterize cable nets used in slope stabilization; a concentrated load test (CLT) and a distributed load test (DLT). These tests enable engineers to obtain the stress versus displacement graph and the maximum resistance. Both test devices and test methodology have been designed by the Construction Technology Research Group (GITECO) at the University of Cantabria. These two tests have enabled the certification of two different manufacturers of cable nets, Geobrugg and Malla Talud Cantabria (MTC). The results showed that these tests provide representative results of the net resistance. To verify the effectiveness of these new tests, they have been performed with various cable nets, from which homogeneous, logical results have been obtained, which are representative of the real working conditions. When performing the distributed load test, the force was applied to a pyramid of fine gravel sacks that enabled the forces to be distributed throughout the net. With this configuration, the net was deformed, acquiring an elliptical form in the lower free area. In the concentrated load test, the force was applied through a metallic plate of 600 mm diameter that deformed the net locally. The result always showed homogeneous behavior of the different samples tested. This allowed the test to be repeated in the same conditions several times. With the results of both tests an analysis was carried out relating the net grid, the load applied, and the displacement obtained. This enabled the generation of regression functions that provided information about the resistance value and the net displacement according to the chosen grid.

Published
2009
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