
Indexado en
Licencia y uso

Grant support
This research was partially funded by the Spanish Ministry of Science and Innovation under the call for Proyectos de Generacion de Conocimiento 2022 (PID2022-137274NB-C33 and PID2022-138637OB-C31/AEI/10.13039/501100011033/FEDER, UE). Furthermore, under the Horizon Europe MSCA Staff Exchange (GA No: 101086302) call, the European Union has also provided partial funding for this work. Views and opinions expressed are however those of the author (s) only and do not necessarily reflect those of the European Union or European Research Executive Agency. Neither the European Union nor the granting authority can be held responsible for them.
Análisis de autorías institucional
Pacios, AntoniaAutor (correspondencia)Tejado, ElenaAutor o CoautorMartín, AntoniaAutor o CoautorPastor, Jose YgnacioAutor o CoautorHigh-temperature performance of clay-enhanced alkali-activated binders: A sustainable alternative to Portland cement
Publicado en:Construction And Building Materials. 453 138860- - 2024-11-29 453(), DOI: 10.1016/j.conbuildmat.2024.138860
Autores: Pacios, A; Tejado, E; Martín, A; Fernández, A; Pastor, JY
Afiliaciones
Resumen
The cement industry's commitment to reducing CO2 emissions has led to exploring alternative processes and supplementary cementitious materials (SCMs). These include alkali-activated binders or geopolymers, promising cement alternatives due to their pozzolanic properties and superior strength and durability, especially at high temperatures. Using abundant raw materials such as clay further enhances the sustainability of geopolymers by reducing emissions associated with their production. Factors like raw material composition and activator type can affect binder properties, so careful material design is essential. This paper discusses experimental results on the mechanical behaviour of alkaline cements at high temperatures, testing two binders (FA=100 % fly ash and FB=70 % fly ash with 30 % clay) and two activators (WN and WK), selected from previous studies where residual strength after temperature exposure was excellent. Their performance was compared to two Portland types of cement (CEM I 52.5 N/SR and CEM I 42.5 R). Unlike cement pastes, the alkaline cements FA and FB retain and can even improve mechanical strength up to 600 degrees C. At this temperature, adding clay to the FB alkali cement promotes the formation of a viscous gel capable of filling cracks and voids in the geopolymer, thus increasing its high-temperature strength by 80 % compared to cement pastes.
Palabras clave
Indicios de calidad
Impacto bibliométrico. Análisis de la aportación y canal de difusión
El trabajo ha sido publicado en la revista Construction And Building Materials debido a la progresión y el buen impacto que ha alcanzado en los últimos años, según la agencia WoS (JCR), se ha convertido en una referencia en su campo. En el año de publicación del trabajo, 2024 aún no existen indicios calculados, pero en 2023, se encontraba en la posición 82/439, consiguiendo con ello situarse como revista Q1 (Primer Cuartil), en la categoría Materials Science, Multidisciplinary.
2025-07-08:
- Google Scholar: 2
- WoS: 2
- Scopus: 6
Impacto y visibilidad social
Análisis de liderazgo de los autores institucionales
Existe un liderazgo significativo ya que algunos de los autores pertenecientes a la institución aparecen como primer o último firmante, se puede apreciar en el detalle: Primer Autor (PACIOS ALVAREZ, ANTONIA) y Último Autor (PASTOR CAÑO, JOSE YGNACIO ).
el autor responsable de establecer las labores de correspondencia ha sido PACIOS ALVAREZ, ANTONIA.