Non-Destructive Evaluation of Internal Sulphate Attack in Cement-Based Materials Applying Non-Linear Ultrasonic Techniques
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Título: | Non-Destructive Evaluation of Internal Sulphate Attack in Cement-Based Materials Applying Non-Linear Ultrasonic Techniques |
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Autor/es: | Ortega, José Marcos | Miró, Marina | Poveda-Martínez, Pedro | Tenza-Abril, Antonio José | Ramis-Soriano, Jaime | Climent, Miguel-Ángel |
Grupo/s de investigación o GITE: | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura | Acústica Aplicada | Tecnología de Materiales y Territorio (TECMATER) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Civil | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal |
Palabras clave: | Sulphate attack | Non-destructive characterization | Microstructure | Ultrasonic wave | Cement-based materials |
Área/s de conocimiento: | Ingeniería de la Construcción | Física Aplicada |
Fecha de publicación: | 9-nov-2020 |
Editor: | MDPI |
Cita bibliográfica: | Ortega JM, Miró M, Poveda P, Tenza-Abril AJ, Ramis J, Climent MÁ. Non-Destructive Evaluation of Internal Sulphate Attack in Cement-Based Materials Applying Non-Linear Ultrasonic Techniques. Proceedings. 2020; 67(1):19. https://doi.org/10.3390/ASEC2020-07514 |
Resumen: | One of the most aggressive attacks to which cement-based materials can be exposed is that produced by sulphate. During this attack, expansive products are formed, causing volumetric strains in hardened materials, which brings microcracking and the reduction of their strength and durability. The use of non-destructive techniques for characterizing the microstructure of cement-based materials, and for following the development of deleterious processes which can affect them, has become an important research field. Among them, non-linear ultrasonic (NLU) techniques have shown to be useful for evaluating the material degradation. The aim of this work is to study the possibility of using the NLU technique for the non-destructive evaluation of initial development of internal sulphate attack in cement-based materials. Cement pastes were prepared using ordinary Portland cement, to which an appropriate amount of calcium sulphate 2-hydrate was added during the setting for producing an internal attack in the samples. Furthermore, its effects in the microstructure have been followed with mercury intrusion porosimetry. The expansion and linear ultrasonic pulse velocity were also determined. The preliminary results indicate that the NLU technique could be useful for studying the development of sulphate attacks in the short-term, complementing the information provided by other techniques. |
Patrocinador/es: | This research was funded by the Conselleria de Educación, Investigación, Cultura y Deporte (at present re-named as Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital) de la Generalitat Valenciana (Spain) (grant code GV/2019/070), by the Spanish Agencia Estatal de Investigación (grant code BIA2016-80982-R) and by the European Regional Development Fund (grant code BIA2016-80982-R). M. M. is indebted to Spanish Ministerio de Educación, Cultura y Deporte for a pre-doctoral fellowship (FPU16/04078). |
URI: | http://hdl.handle.net/10045/111699 |
ISSN: | 2504-3900 |
DOI: | 10.3390/ASEC2020-07514 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/ASEC2020-07514 |
Aparece en las colecciones: | INV - Acústica Aplicada - Artículos de Revistas INV - DMCIA - Artículos de Revistas INV - TECMATER - Artículos de Revistas |
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