Desarrollo de hormigones conductores con adicion de fibras de carbono recicladas
- Autores: Gerard Faneca Llesera
- Directores de la Tesis: Antonio Aguado de Cea (dir. tes.), Ignacio Segura Pérez (codir. tes.)
- Lectura: En la Universitat Politècnica de Catalunya (UPC) ( España ) en 2020
- Idioma: español
- Materias:
- Texto completo no disponible (Saber más ...)
- Resumen
Inside the studies of intelligent materials and considering concrete as one of the most building material used, getting new functionalities to him, would provide new uses and applications to the usual structural or facing purposes. Factor that would allow the material to evolve while maintaining its validity in new challenges that arise in infrastructure areas, such as the smart city, mobility, self-sensing of structures and other possible applications still to be developed.
With this objective marked and introducing factors such as sustainability and medium-term industrialization, this thesis focuses on the use of recycled carbon fibers from products or processes, added to concrete, in order to modify its electrical properties and transform it, from one insulating material, to another with conductive properties.
Therefore, based on previous studies, two concrete matrix are characterized with particular differences in the size of their aggregates. Both two matrix receive the addition of different types of carbon fiber recycled in different percentages.
In a first phase, the study focuses on the characterization of the different basic properties of concrete, such as structural capacity and workability in fresh condition. The determination of electrical properties is added and established specific test typologies to evaluate, compare and analyze the effect of the different phases present in the material, on the electrical conductivity of all combinations of proposed mixes.
Subsequently, focusing on the combinations of matrix, type and quantity of fiber with better conductive properties, deeper electrical characterization is done, contrasting it with associated functionalities such as the piezoelectric effect and the Joule effect. Functionalities that govern the self-sensing and self-heating of concrete applications such as the control of deformations of structures or pavements with de-icing effect.
Finally, the material developed in a full-scale pilot test is applied, in which the functionality of self-heating is tested in an element of urban furniture by the company ESCOFET 1886 S.A., which has participated in the realization of this doctoral thesis inside the framework of the Industrial Doctoral Program of the Generalitat de Catalunya.
