Rendimiento estático y cíclico de compuestos cementantes reforzados con fibras de vidrio

Autores/as

DOI:

https://doi.org/10.3989/mc.2018.10216

Palabras clave:

Álcalis, Vidrio, Refuerzo de fibras, Resistencia a la flexion, Fatiga

Resumen


Este trabajo aborda el estudio experimental de la influencia de fibras de vidrio cortas orientadas al azar sobre el comportamiento mecánico de un composite reforzado de base cemento. Los parámetros de la matriz utilizados son: relación cemento/arena y relación agua/cemento fijada en 0,5; el contenido de fibra de vidrio (0%, 0,5%, 1,0%, 1,5%, 2% y 2,5%) y longitudes de fibra (3, 6 y 12 mm). Los resultados mecánicos de estos compuestos bajo comportamiento estático (flexión y compresión), muestran que el efecto de refuerzo es beneficioso unicamente a flexión. Se observó una sinergia (refuerzo de la matriz) cuando se usó la fibra de 12 mm con una tasa de aplicación del 2% en flexión. El comportamiento a fatiga determinado por las curvas de Wöhler (número de ciclos hasta la rotura), derivado de los resultados experimentales; mostró una gran dispersión de resultados que se atribuye a las muchas causas que pueden iniciar este daño. Las pruebas cíclicas ilustran el carácter quebradizo de estos materiales; y no se pude indicar que exista adaptación de estos materiales, incluso con ciclos de carga de baja amplitud.

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Citas

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Publicado

2018-03-30

Cómo citar

Arabi, N. (2018). Rendimiento estático y cíclico de compuestos cementantes reforzados con fibras de vidrio. Materiales De Construcción, 68(329), e146. https://doi.org/10.3989/mc.2018.10216

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