Size and shape effect of specimen on the compressive strength of HPLWFC reinforced with glass fibres

Hamad, Ali Jihad

doi:10.1016/j.jksues.2015.09.003

Cited by 60 publications

(43 citation statements)

References 8 publications

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“…3 ) compared to cylinders of the same size (0.005301mm 3 ) and do not require capping for testing as they are rolled over on their sides to get a plane loading surface. In real structures, the cylinder specimen seems more appropriate as they are casted and tested in the same position, unlike cubes that are turned on their sides [8].…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Specimen Shape on the Mechanical Properties of Sisal Fiber-Reinforced Concrete

Okeola¹,

Abuodha²,

Mwero³

2018

TOCIEJ

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Introduction: Fiber reinforced concrete is becoming popular in improving the quasi-brittle failure of concrete. Natural fibers such as sisal holds great promise in this regard. It has amazing tensile strength and is renewable. This paper presents the result of an investigation carried out on the effect of sisal fiber on the compressive strength, Split tensile strength, failure mode and Poisson ratio of Sisal Fiber-Reinforced Concrete (SFRC). Methods: A mix proportion of 1:1.92:3.68 and w/c ratio of 0.47 for a target compressive strength of 35 MPa was used. Sisal fiber was added at percentages of 0.5%, 1.0%, 1.5%, and 2.0% by weight of cement. The effect of specimen shape on the compressive strength of sisal fiber-reinforced concrete (SFRC) was reported. The compressive strength of cube (150mm X 150mm) and cylinder (150mm diameter and 300mm height) specimen was determined at 7 and 28 days, while Split tensile strength and Poisson ratio were obtained using cylindrical specimen (150mm diameter and 300mm height). Results and Conclusion: The result shows that the addition of sisal fiber slightly reduces the compressive strength of concrete, increases its split tensile strength up to 47.167% of the control specimen, arrests crack propagation and reduces its Poisson ratio. The correlation between the compressive strength of cylindrical and cube specimen was established with a ratio ranging between 0.82 - 0.73. The difference in the compressive strength was found to increase with rise in the percentages of sisal fiber. Based on the ratio and mechanical properties, 1.0% sisal fiber content was recommended as the optimum for reinforcing concrete.

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Section: Introductionmentioning

confidence: 99%

“…Aspect ratio (height to diameter ratio) of test specimen is crucial for confinement effects during loading [8]. The greater the aspect ratio, the more the correction factor as the value of the compressive strength of cubes and cylinder of the same aspect ratio converges [9].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Specimen Shape on the Mechanical Properties of Sisal Fiber-Reinforced Concrete

Okeola¹,

Abuodha²,

Mwero³

2018

TOCIEJ

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“…Lightweight concrete (LWC) is considered a multipurpose material that has interested and formed a large industrial demand in recent years in a broad range of construction projects, although it is known to use before 2000 years. LWC has a dry density range of about 300 up to 2000 kg/m 3 , with a compressive strength of a cube about one to higher than 60 MPa . Inasmuch the concrete deemed a brittle material and poor tensile strength, the fibers were used in concrete to enhance the tensile strength properties of concrete.…”

Section: Introductionmentioning

confidence: 99%

“…Inasmuch the concrete deemed a brittle material and poor tensile strength, the fibers were used in concrete to enhance the tensile strength properties of concrete. Fibers enhance and modify the tensile strength, flexural toughness, impact resistance, fracture energy, arrest cracks formation and propagation, and improve the strength and ductility . Aerated concrete (AC) is one of the LWC types formed by creating gas bubbles within a conventional concrete that aluminum powder reacts with the calcium hydroxide created by cement hydration to generate hydrogen gas bubbles .…”

Section: Introductionmentioning

confidence: 99%

“…Fibers enhance and modify the tensile strength, flexural toughness, impact resistance, fracture energy, arrest cracks formation and propagation, and improve the strength and ductility. 2,4 Aerated concrete (AC) is one of the LWC types formed by creating gas bubbles within a conventional concrete that aluminum powder reacts with the calcium hydroxide created by cement hydration to generate hydrogen gas bubbles. 5 Supplementary cementitious materials (SCM) used as a replacement by weight of cement or fine aggregate to obtain sustainable concrete by reducing the cement consuming.…”

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Effect of ceramic waste powder as partial fine aggregate replacement on properties of fiber‐reinforced aerated concrete

Hamad

Sldozian

Mikhaleva

2020

Engineering Reports

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Researchers have continuously attempted to reduce and recycle construction waste. Ceramic waste is mainly a byproduct of the manufacturing process. About 25% of the waste is produced because of dimension defects or incurring problems throughout the industrial process. This article aims to highlight the alternative uses of ceramic waste. In this research, ceramic waste at a powder status is reduced to fine aggregates. Here, ceramic waste powder (CWP) is used in different ratios of 25%, 50%, 75%, and 100% replacing the fine aggregate weight. Aluminum powder is used to obtain aerated concrete (AC). Glass fibers are added in ratios of 1%, 1.5%, and 2% of cement weight to obtain a fiber‐reinforced AC. The unit weight, compressive strength, splitting tensile strength, and thermal conductivity are estimated. Furthermore, scanning electron microscopy is performed to investigate the microstructure features of the composite. The results exhibit better performance in compressive and splitting tensile strength when fine aggregates were replaced by 25% and 50% of CWP. In addition, 1.5% of GFs enhance the compressive and splitting tensile strength. In addition, increasing the CWP decreases the unit weight of fiber‐reinforced AC. It is shown that CWP strongly influences the thermal conductivity of the fiber‐reinforced AC, resulting in a high composite resistant to heat transmission. The technique for order preference by similarity to an ideal solution method is used to obtain the optimal mix.

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The Influence of Specimen Shape and Size on the PCC Compressive Strength Values

Sokołowska

Piotrowski

Gajda

2018

International Congress on Polymers in Concrete (ICPIC 2018)

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Size and shape effect of specimen on the compressive strength of HPLWFC reinforced with glass fibres

Cited by 60 publications

References 8 publications

The Effect of Specimen Shape on the Mechanical Properties of Sisal Fiber-Reinforced Concrete

The Effect of Specimen Shape on the Mechanical Properties of Sisal Fiber-Reinforced Concrete

Effect of ceramic waste powder as partial fine aggregate replacement on properties of fiber‐reinforced aerated concrete

The Influence of Specimen Shape and Size on the PCC Compressive Strength Values

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