Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Recolector de Cienci...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 1 versions
addClaim

Estudio de durabilidad de las fibras vegetales dentro de materiales compuestos de matriz cementicia

Authors: Sabaté Riera, Martí;

Estudio de durabilidad de las fibras vegetales dentro de materiales compuestos de matriz cementicia

Abstract

El FRCM (Fabric Reinforced Cementitious Matrix), también conocido como TRM (Textile-Reinforced Matrix), se erige como un compuesto altamente prometedor para el refuerzo de estructuras antiguas o deterioradas por el transcurso del tiempo. Su composición lo hace perfectamente compatible con una amplia gama de materiales utilizados en construcción, desde elementos de mampostería antigua hasta diversos tipos de cemento y hormigón. Este compuesto se conforma mediante una matriz de mortero y un refuerzo en forma de malla, comúnmente compuesta por fibras textiles de origen sintético. Su aplicación se extiende al refuerzo de estructuras de hormigón armado y mampostería, emergiendo como una alternativa prometedora a los materiales previamente empleados en este contexto. La versatilidad del FRCM se manifiesta en su capacidad para adaptarse a diversas aplicaciones mediante ajustes en la malla o en la propia composición del mortero. En la actualidad, numerosos estudios buscan caracterizar las propiedades físicas y químicas de estos materiales, llevando a cabo una variedad de experimentos y ensayos con diferentes especímenes. Se exploran diversas combinaciones de morteros, mallas e incluso métodos de fabricación, delineando un campo de investigación en constante evolución. En este trabajo de fin de grado, se investiga la degradación de fibras vegetales, específicamente algodón, cáñamo y sisal, bajo la exposición a distintos entornos. Se abordan los procesos de degradación al sumergir las probetas de FRCM en agua, así como los mechones e hilos de manera individual en un medio alcalino. El documento detalla exhaustivamente el procedimiento utilizado para la fabricación de las distintas probetas, asegurando su correcta preparación para los ensayos. Después de llevar a cabo las pruebas, se concluye que, durante el período estudiado, en las probetas de FRCM la humedad o agua que penetra en el mortero no ha degradado las fibras de manera significativa. En los ensayos de hilos y mechones, notablemente, el algodón ha demostrado ser el material más resistente al medio alcalino, exhibiendo una degradación prácticamente insignificante. Por otro lado, se observa una disminución en las tensiones máximas obtenidas para el cáñamo y el sisal disminuyendo así sus resistencias a tracción, siendo este último el más afectado por la exposición al medio alcalino.

The FRCM (Fabric Reinforced Cementitious Matrix), also known as TRM (Textile-Reinforced Matrix), emerges as a highly promising compound for reinforcing ancient or deteriorated structures over time. Its composition makes it perfectly compatible with a wide range of materials used in construction, from elements of ancient masonry to various types of cement and concrete. This compound is formed by a matrix of mortar and a reinforcement in the form of a mesh, commonly composed of synthetic textile fibers. Its application extends to the reinforcement of reinforced concrete structures and masonry, emerging as a promising alternative to materials previously used in this context. The versatility of FRCM is evident in its ability to adapt to various applications through adjustments to the mesh or the mortar composition itself. Currently, numerous studies seek to characterize the physical and chemical properties of these materials, conducting a variety of experiments and tests with different specimens. Various combinations of mortars, meshes, and even manufacturing methods are explored, outlining a constantly evolving field of research. In this undergraduate thesis, the degradation of plant fibers, specifically cotton, hemp, and sisal, is investigated under exposure to different environments. Degradation processes are addressed by immersing FRCM specimens in a neutral medium (water) and individual strands and threads in an alkaline medium. The document thoroughly details the procedure used for the manufacture of different specimens, ensuring their proper preparation for testing. After conducting the tests, it is concluded that, during the studied period, water has not penetrated the mortar structure, thus preventing fiber degradation. Remarkably, cotton has proven to be the most resistant material to the alkaline medium, exhibiting virtually insignificant degradation. On the other hand, a decrease in the maximum tensions obtained is observed for hemp and sisal, with the latter being the most affected by exposure to the alkaline medium.

Country
Spain
Keywords

Materials compostos, Plant fibers, Àrees temàtiques de la UPC::Enginyeria tèxtil::Fibres tèxtils, Building, Building, Brick, Composite materials, Construcció en maó, Brick, Fibres vegetals

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
    OpenAIRE UsageCounts
    Usage byUsageCounts
    visibility views 123
    download downloads 37
  • 123
    views
    37
    downloads
    Powered byOpenAIRE UsageCounts
Powered by OpenAIRE graph
Found an issue? Give us feedback
visibility
download
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
downloads
OpenAIRE UsageCountsDownloads provided by UsageCounts
0
Average
Average
Average
123
37
Green