High strength oil palm shell concrete beams reinforced with steel fibres

S. Poh-Yap; U. Johnson-Alengaram; K. Hung-Mo; M. Zamin-Jumaat

doi:10.3989/mc.2017.11616

Autores/as

S. Poh-Yap Department of Civil Engineering, Faculty of Engineering, University of Malaya https://orcid.org/0000-0002-2036-9740
U. Johnson-Alengaram Department of Civil Engineering, Faculty of Engineering, University of Malaya https://orcid.org/0000-0001-9358-2975
K. Hung-Mo Department of Civil Engineering, Faculty of Engineering, University of Malaya https://orcid.org/0000-0001-5122-8839
M. Zamin-Jumaat Department of Civil Engineering, Faculty of Engineering, University of Malaya https://orcid.org/0000-0002-8783-1274

DOI:

https://doi.org/10.3989/mc.2017.11616

Palabras clave:

Árido, Hormigón, Refuerzo de fibras, Resistencia a la flexión, Propiedades mecánicas

Resumen

La utilización de cáscara ligera de palma de aceite para producir materiales duraderos y de alta resistencia ha llevado a muchos investigadores a su comercialización como hormigón estructural. Sin embargo, la baja resistencia a la tracción del hormigón de cáscara de palma de aceite (OPSC) ha obstaculizado su desarrollo. Este estudio tiene como objetivo mejorar las propiedades mecánicas y los comportamientos de flexión de OPSC mediante la adición de fibras de acero de hasta un 3% en volumen, para producir hormigón armado de fibra de palma de aceite (OPSFRC). Los resultados experimentales mostraron que las fibras de acero mejoraron significativamente las propiedades mecánicas de OPSFRC. En la mezcla OPSFRC reforzada con fibras de acero al 3% se obtuvieron las mayores resistencias a la compresión, resistencia a la tracción ya la flexión de 55, 11,0 y 18,5 MPa, respectivamente. Además, el ensayo de vigas flexibles en haces OPSFRC con fibras de acero al 3% mostró que el refuerzo de fibra de acero hasta 3% produjo incrementos notables en la capacidad momentánea y resistencia a la fisuración de los haces OPSFRC, pero acompañado de una reducción de la ductilidad.

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