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Análisis del comportamiento a impacto de materiales compuestos de matriz cementicia y tejidos de fibras vegetales

Authors: Tamayo Alvarez, Luis Alberto;

Análisis del comportamiento a impacto de materiales compuestos de matriz cementicia y tejidos de fibras vegetales

Abstract

El mortero es uno de los materiales más resistentes que habitualmente se utiliza para revestimientos de paredes, rehabilitación y refuerzo de estructuras o en la construcción de infraestructuras que contribuyen al desarrollo de un país. El mortero es una mezcla homogénea que se compone principalmente de la mezcla de cemento, arena y agua, a la cual en ocasiones se le añaden aditivos para mejorar sus propiedades mecánicas y rendimiento. A veces, el mortero puro no cumple con las propiedades necesarias para resistir algunos de los esfuerzos a los que se ve sometido en algunas estructuras, por lo que este se suele reforzar con barras o mallas de acero. Debido a que el acero representa un elevado coste económico y medio ambiental, en la actualidad se está buscando nuevas alternativas a este material, como lo es por ejemplo el FRCM (Fiber-reinforced Cementitious Matrix), el cual tiene costes más reducidos y mucho más sostenible cuando se utilizan fibras vegetales, con el objetivo de disipar mayor energía frente a acciones de impacto puesto que este material tiene más capacidad de alargamiento y amortiguación. En este proyecto se analizará el comportamiento de placas compuestas de mortero reforzado con tejido de fibras vegetales (FRCM), así como con tejidos sintéticos como tejidos de vidrio y tejidos de acero frente a cargas de impacto. Para el desarrollo de dicho estudio, se elaborarán las probetas en los laboratorios de la UPC de Terrassa. Posteriormente las pruebas se llevarán a cabo mediante un test estandarizado denominado: Método de prueba estándar para medir la resistencia al daño de un compuesto de matriz polimérica reforzada con fibra ante un evento de impacto por peso caído (Designación: D7136/D7136M – 12). A continuación, se analizarán los datos recopilados para llegar a conclusiones basadas en los resultados obtenidos.

Mortar is one of the most resistant materials commonly used for wall claddings, rehabilitation, and structural reinforcement, or in the construction of infrastructures that contribute to the development of a country. Mortar is a homogeneous mixture mainly composed of cement, sand, water, and sometimes additives are added to improve its mechanical properties and performance. Sometimes, pure mortar does not meet the necessary properties to withstand some of the efforts it is subjected to in certain structures, so it is often reinforced with some steel matrix (reinforced concrete). Due to the high economic and environmental cost of steel, currently, new alternatives to this material are being sought, such as FRCM, which has lower costs and is much more sustainable, with the goal of dissipating more energy in the face of impact actions since this material has greater elongation and damping capacity. In this project, the behavior of mortar plates reinforced with vegetable fiber fabric (FRCM) under impact loads with different materials will be analyzed. For the development of this study, the specimens will be prepared in the UPC laboratories in Terrassa. Subsequently, the tests will be carried out through a standardized test called: Standard Test Method for Measuring the Damage Resistance of a Fiber-Reinforced Polymer Matrix Composite to a Drop-Weight Impact Event (Designation: D7136/D7136M – 12). Then, the obtained data will be analyzed to be able to reach some conclusions with the results obtained.

Country
Spain
Keywords

Mortar, Materials compostos, Morter (Material de construcció), Composite materials, Àrees temàtiques de la UPC::Enginyeria dels materials::Materials compostos

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selected citations
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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).
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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.
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