Experimental Study of High‐Strength Steel Fiber Lightweight Aggregate Concrete on Mechanical Properties and Toughness Index

Ye, Yanxia; Liu, Jilei; Zhang, Zhi Yong; Wang, Zongbin; Peng, Qiongwu

doi:10.1155/2020/5915034

Cited by 29 publications

(5 citation statements)

References 22 publications

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“…Existen investigaciones sobre su implementación en la mezcla de hormigón liviano de alta resistencia y cómo influyen en esta, así como también sobre la relación de contenido de volumen de la fibra en la resistencia a la tracción por división, a la flexión y a la compresión. Teniendo principalmente el rango de fracción de contenido de volumen de fibra de acero estudiado de 0,5 % a 2,0 %, se observa que los diferentes tipos de fibra de acero influyen de diferente manera en la mezcla, y la microfibra de acero es la que tiene mejor tenacidad sobre las otras dos [59].…”

Section: Análisisunclassified

Comportamiento físico-mecánico del hormigón adicionando residuos de acero: una revisión literaria

Muñoz-Pérez

Cabrera-Alcántara

Bravo

et al. 2021

Revista UIS Ingenierías

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En la actualidad, el interés por usar materiales de desecho y subproductos provenientes del hormigón ha incrementado, debido a la necesidad de minimizar la contaminación en el planeta. El presente documento tiene como objetivo la revisión sistemática de la literatura con respecto a la implementación de los residuos de acero en la mezcla de hormigón, y cómo esto influye en su comportamiento físico-mecánico. Se ha enfocado el interés principalmente en los residuos de acero en forma de escoria, limadura, viruta y fibras, incorporados en todo tipo de hormigón estructural, utilizado en columnas, vigas, zapatas, losas y muros. El uso de estos materiales tiene un alto impacto, pues no solo ayuda a reducir el costo de fabricación de cemento y hormigón, sino que a la vez otorga numerosos beneficios ecológicos, como reducir el costo de los vertederos, ahorrar energía y proteger el medio ambiente de una posible contaminación. Se efectuó la búsqueda de artículos indexados en las diversas bases de datos, tales como ASCE, EBSCO, Google Scholar, ScienceDirect, Scopus y SpringerOpen; se seleccionó finalmente un total de 60 artículos publicados desde el año 2014. Se concluye que el uso de residuos de acero es una alternativa para incorporar a la mezcla de hormigón, pues puede reemplazar parcial o totalmente al agregado y lograr la producción de hormigones que no presenten afección en sus propiedades físico-mecánicas; e incluso, en algunos casos, mejorar dichas características.

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Section: Análisisunclassified

Comportamiento físico-mecánico del hormigón adicionando residuos de acero: una revisión literaria

Muñoz-Pérez

Cabrera-Alcántara

Bravo

et al. 2021

Revista UIS Ingenierías

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“…The micro-steel fibers utilized in their study had dimensions of 11 mm in length and 0.2 mm in diameter. Ye et al [30] prepared specimens of micro-fine steel fiber-high-strength lightweight aggregate concrete (MSFHLAC) using micro-fine steel fibers of 13 mm in length and 0.2 mm in diameter, high-strength shale aggregate, and mineral admixtures. They assessed the influence of micro-fine steel fiber volume fraction, sand ratio, and the water-cement ratio on the static mechanical properties, including compressive strength, splitting tensile strength, flexural strength, shear strength, and the flexural toughness of MSFHLAC specimens.…”

Section: Introductionmentioning

confidence: 99%

Influence of Extra-Short Extra-Fine Steel Fibers on Mechanical Properties of Self-Compacting Concrete with Single-Doped Fly Ash

Yang,

Zeng,

Wang

et al. 2024

Buildings

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This study assesses the influence of extra-short extra-fine steel fibers on the performance of self-compacting concrete (SCC) modified with fly ash. Replacing standard steel fibers with volume fractions ranging from 0%, 1.5%, 3%, 5% and 6%, the study optimizes the mix design for enhanced workability and mechanical properties. The findings reveal that, although the addition of steel fibers had a negative effect on the flowability, the cohesion is significantly improved, providing a basis for a significant improvement in the mechanical properties. The optimal fiber content is identified at 5%, achieving the highest compressive strength of 71.7 MPa, split tensile strength of 8.2 MPa, and flexural strength of 12.8 MPa at 28 d. However, further increases in fiber content beyond 5% lead to a deceleration in compressive and splitting tensile strength improvement and a 27.5% drop in flexural strength at 28 d. The study also emphasizes the good dispersion within the concrete, which helps to enhance its ductility and crack resistance, to some extent.

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“…Steel fiber reinforced cementitious composite (SFRCC) has excellent mechanical properties and deformation properties [8], in ambient temperature, steel fiber can improve the flexural tensile strength and flexural toughness of the matrix obviously, as well as it is an excellent material for improving the seismic performance and durability of engineering structures [9,10]. Rostásy and Sprenger [11] studied the compressive and tensile properties of steel fiber reinforced concrete (SFRC), and the results showed that adding steel fiber could significantly reduce the concrete damage caused by temperature decrease.…”

Section: Introductionmentioning

confidence: 99%

Research on Flexural Properties and Flexural Toughness Evaluation Method of Steel Fiber Reinforced Cementitious Composites under Polar Low Temperatures

Shui,

Su,

Huang

et al. 2024

Advances in Civil Engineering

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In this research, five groups of steel fiber reinforced cementitious composite (SFRCC) with different fiber volume content (0%, 0.5%, 1.0% 1.5%, and 2.0%) were designed to perform four-point flexural tests on beam specimens to study the effects of polar temperature (20, 0, −25, −50, −75, and −100°C) and fiber volume content on the flexural properties. The flexural toughness index and load holding capacity index were calculated based on the load–displacement curve, and the enhancement and toughening mechanisms of SFRCC by low temperature and steel fibers were analyzed in conjunction with experimental observations. The results of the proposed flexural toughness evaluation method show that the flexural toughness of SFRCC can significantly improve than that of ambient temperature when the temperature is lower than 0°C. With the decrease in temperature, the flexural property of SFRCC increases first and then decreases, and the temperature point of this transition is around −50–−75°C. The flexural property enhancement effect of 1.0% fiber volume content SFRCC is more significant in low temperatures according to the flexural toughness index and load holding capacity index. The conclusion can provide a reference for the application of SFRCC in cryogenic engineering, as well as a simple and quantifier evaluation method for flexural toughness is proposed.

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Experimental Study of High‐Strength Steel Fiber Lightweight Aggregate Concrete on Mechanical Properties and Toughness Index

Cited by 29 publications

References 22 publications

Comportamiento físico-mecánico del hormigón adicionando residuos de acero: una revisión literaria

Comportamiento físico-mecánico del hormigón adicionando residuos de acero: una revisión literaria

Influence of Extra-Short Extra-Fine Steel Fibers on Mechanical Properties of Self-Compacting Concrete with Single-Doped Fly Ash

Research on Flexural Properties and Flexural Toughness Evaluation Method of Steel Fiber Reinforced Cementitious Composites under Polar Low Temperatures

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