Durability characteristics of steel fibre reinforced geopolymer concrete

Ganesan, N.; Abraham, Ruby; Raj, Shubham

doi:10.1016/j.conbuildmat.2015.06.014

Cited by 203 publications

(83 citation statements)

References 3 publications

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“…Mangat and Gurusamy [15] showed that fibres embedded in concrete remained free from corrosion for chloride concentrations up to 1.7% Cl − . This is in agreement with the results of Janotka et al [16] and Ganesan et al [17] who found that the necessary concentration of chloride to initiate corrosion in steel fibres was at least 3 times higher compared to conventional reinforcing steel.…”

Section: Introductionsupporting

confidence: 93%

Durability of Steel Fibres Reinforcement Concrete Beams in Chloride Environment Combined with Inhibitor

Masmoudi

Bouaziz²

2016

Advances in Materials Science and Engineering

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This paper presented the effect of the combination of an inhibitor and steel fibre reinforced concrete (SFRC) for concrete structures in chloride environments. Twelve beams were cast and tested to study their flexural behavior. The morphology of steel surfaces using the inhibitor after observing the scanning electron microscope showed a low layer of corrosion products. The steel surface immersed in the inhibitor free solution was seen to have been subject to chloride ions attacks as shown in this study. The interest to the field of the present study is the relatively higher durability of the performance when using the inhibitor. Crack width and crack spacing for beams under the same load showed that the use of SFRC with the inhibitor for concrete structures in chloride environments must have transferred tension across cracks that led to reducing crack spacing without any chloride ions attack.

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Section: Introductionsupporting

confidence: 93%

Durability of Steel Fibres Reinforcement Concrete Beams in Chloride Environment Combined with Inhibitor

Masmoudi

Bouaziz²

2016

Advances in Materials Science and Engineering

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“…Singh et al reported that the compressive strength loss of geopolymer concrete immersed in a 10% Na 2 SO 4 solution for 90 days was 22.3%. Ganesan et al reported that the compressive strength of 0.75 and 1% steel fiber added‐FA based geopolymer concrete immersed in the 3% sodium sulfate solution for 180 days reduced. Yusuf studied the geopolymer mortars immersed in 5% MgSO 4 and 5% Na 2 SO 4 solutions for 6 months.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of sulfate and salt resistance of ferrochrome slag and blast furnace slag‐based geopolymer concretes

Özcan

Karakoç

2019

Structural Concrete

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In this study, mechanical, visual, and microstructure changes of geopolymer concrete exposed to sulfate and salt effects were investigated. Elazı g ferrochrome slag (EFS) and blast furnace slag (BFS)-based geopolymer concretes which completed curing time were immersed in 5% sodium sulfate (Na 2 SO 4 ), magnesium sulfate (MgSO 4 ), sodium chloride (NaCl), and magnesium chloride (MgCl 2 ) solutions for 12 weeks. The compressive strength values, ultrasonic pulse velocities, visual inspections, weight, and length changes of the samples were determined in this investigation. In addition, scanning electron microscopy was performed for the microstructure analysis of the samples removed from the solutions. Sulfate solutions had a more negative effect on the samples than salt solutions. As the EFS ratio in the mixture increases, the loss rate in the strength of the samples exposed to sulfate and salt solutions decreased. While samples exposed to sodium chloride, sodium sulfate, and magnesium sulfate solutions occurred weight gain, samples exposed to magnesium chloride occurred weight loss. The samples in salt solutions shrank, while the samples in sulfate solutions expanded. No deterioration occurred on the surfaces of the samples exposed to the solutions for 12 weeks. K E Y W O R D S blast furnace slag, chemical resistance, ferrochrome slag, geopolymer concrete, salt effect, sulfate effect

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“…improved the tensile strength and bending strength by 38% and 44% correspondingly when compared to plain concrete, also fiber added concrete samples showed excellent impact confrontation when evaluated with plain concrete specimens. Ganesan et al [6] investigated on performance of Non-Reinforced and fiber-reinforced geopolymer in durability aspects. The results showed that FRGPC and plain GPC yields better properties when match up to with conventional concrete.…”

Section: Effect Of Aspect Ratio and Volume Fraction Of Steel Fibers Imentioning

confidence: 99%

“…Geopolymer is a new class high-performance inorganic binder which attracts the researchers in recent years as a substitute material for Ordinary Portland Cement (OPC). Professor Davidovits first coined the term geopolymer in the 1970s, and he discovered that geopolymers are the binder material in amorphous natured three-dimensional aluminosilicates [6,31]. It is a new binder material which reveals the better durability, freeze-thaw resistance, chemical resistance, abrasion resistance, low chloride diffusion rate and thermal stability than OPC [29].…”

Section: Introductionmentioning

confidence: 99%

Effect of Aspect ratio and Volume Fraction of Steel Fibers in Strength Properties of Geopolymer Concrete

2019

IJITEE

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In this present study, a trail has been conducted to examine the influence of dissimilar aspect ratio and diverse volume fractions of steel fibers in GPC under various curing exposures on the fresh and mechanical properties. Meanwhile, the major strength performance of concrete such as compressive strength, split tensile, flexural, workability and microstructure properties were also studied. From the test results, it was revealed that in the heat curing method, there was just a low augmentation in the compressive strength at 28 years old days when compared with ambient curing condition. Then again, a radical increment in the compressive strength was recognized at 3 days on account of thermal curing because of the elevated polymerization process. The microstructure investigation illustrated that the FA and GGBS particles reacted with the alkaline activator solution and formed a denser structure in the heat curing process when compared with the room-cured specimens because of the unreacted particles present in it. The Xray diffraction pattern shows that the geopolymer particles are crystalline in nature. It was observed that the strength properties were increases with the augment in aspect ratio (Ar) and high percentage volume of steel fibers.

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Durability characteristics of steel fibre reinforced geopolymer concrete

Cited by 203 publications

References 3 publications

Durability of Steel Fibres Reinforcement Concrete Beams in Chloride Environment Combined with Inhibitor

Durability of Steel Fibres Reinforcement Concrete Beams in Chloride Environment Combined with Inhibitor

Evaluation of sulfate and salt resistance of ferrochrome slag and blast furnace slag‐based geopolymer concretes

Effect of Aspect ratio and Volume Fraction of Steel Fibers in Strength Properties of Geopolymer Concrete

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