Flexural behavior of hollow self compacted mortar ferrocement beam reinforced by GFRP bars

Abdullah, Qutaiba Najm; Abdulla, Aziz Ibrahim

doi:10.1016/j.cscm.2022.e01556

Cited by 10 publications

(2 citation statements)

References 40 publications

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“…The great workability of concrete is necessary when the section is complex and narrow, or when there are inaccessible areas or several corners, as well as when steel reinforcing is dense, making it difficult to place or compact concrete. So, full consolidation may be performed with minimum effort [2,3]. Selfcompacting concrete (SCC) in its fresh state has several significant advantages, the most notable of which are that it does not require vibration to completely fill the formwork and adequately surround the reinforcement (even in densely reinforced areas), leave voids, and segregate either while it is being cast or after it has been cast.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Waste Ceramic Powders and Waste Glass Powders on the Rheological and Mechanical Properties of Self-Compacting Concrete

Khairi,

Rejeb

2024

Tikrit j. eng. sci.

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Two key axes dominated this experimental research. The first was developing self-compacting concrete from ceramic waste powder (CWP) and glass waste powder (GWP), which met and followed the recommended European specification and guidelines for self-compacting concrete (EFNARC) standards. The second axis indicated the self-compacting concrete's rheological and mechanical performance. Sixteen different mixtures were produced using supplementary cementitious materials (SCMs) to replace cement partially. The replacement levels of SCMs were 5%, 10%, and 15% (by weight of cement), divided into three series: Series A (containing ceramic waste powder), Series B (containing glass waste powder), and Series C (containing combinations of ceramic waste powder and glass waste powder). The SCC rheological properties for all mixtures with different levels of SCMs replacement in the mixture gradually decreased as the substitution ratios increased. The reduction in flowability for substitution, ranging from 5% to 35%, was approximately 0% to 12%, respectively. However, the reduction was insignificant; the fresh properties remained within the limits specified by EFNARC. Regarding the mechanical properties, at an early age, the strength of mixtures decreased with increasing alternative ratios. However, after 90 days, the strength increased by about 11% and 9% of the compressive and flexural strengths, respectively, over the control mix, indicating that SCMs improve the concrete strength over time and are suitable to contribute to an eco-friendly concrete industry without compromising strength.

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Section: Introductionmentioning

confidence: 99%

The Effects of Waste Ceramic Powders and Waste Glass Powders on the Rheological and Mechanical Properties of Self-Compacting Concrete

Khairi,

Rejeb

2024

Tikrit j. eng. sci.

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“…Moreover, they offer economic advantages compared to metallic fibres. However, it is essential to note that polypropylene fibres exhibit lower tensile strength than their metallic counterparts, which may impact their performance under specific conditions [1][2][3][4][5][6][7][8][9][10]. Additionally, researchers have explored alternative methods to enhance shear performance in RC beams.…”

Section: Introductionmentioning

confidence: 99%

Performance of RC Beams under Shear Loads Strengthened with Metallic and Non-Metallic Fibers

Ghali,

El-Sayed,

Salah

et al. 2024

Buildings

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In our investigation, we subjected eleven reinforced concrete beams to a four-point bending system to explore the impact of varying fibre and ferrocement contents on their structural behaviour. These beams, measuring 1.7 m in length, featured a rectangular cross-section with dimensions of 150 mm by 300 mm. Our study focused on three key variables: steel fibre content (at levels of 0.5%, 1%, and 1.5%), glass fibre content (also at 0.5%, 1%, and 1.5%), and ferrocement content (evaluated with one or two layers of welded or expanded wire mesh). Our findings revealed that incorporating fibres with minimal shear reinforcement significantly enhanced the beams’ performance. Specifically: The specimen reinforced with 1.5% steel fibres exhibited the highest ultimate failure load, surpassing the control beam by an impressive 41.87%. The 0.5% glass fibre specimen experienced the least deflection at the ultimate load compared to the control beam. The 1.5% glass fibre specimen demonstrated superior energy absorption compared to the control specimen. Notably, using two layers of welded wire mesh proved most effective in enhancing the ultimate failure load when compared to both the control specimen and other ferrocement-strengthened beams.

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Mechanical Properties of Ferrock Concrete: An Experimental Study

Ibrahim,

Deifalla,

Nagi

et al. 2024

Sustainable Civil Infrastructures

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Flexural behavior of hollow self compacted mortar ferrocement beam reinforced by GFRP bars

Cited by 10 publications

References 40 publications

The Effects of Waste Ceramic Powders and Waste Glass Powders on the Rheological and Mechanical Properties of Self-Compacting Concrete

The Effects of Waste Ceramic Powders and Waste Glass Powders on the Rheological and Mechanical Properties of Self-Compacting Concrete

Performance of RC Beams under Shear Loads Strengthened with Metallic and Non-Metallic Fibers

Mechanical Properties of Ferrock Concrete: An Experimental Study

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