Split tensile strength of slag-based geopolymer composites reinforced with steel fibers: Application of Taguchi method in evaluating the effect of production parameters and their optimum condition

Khalaj, Mohammad-Javad; Khoshakhlagh, Ali; Bahri, Sirous; Khoeini, Mahdi; Nazerfakhari, Mohsen

doi:10.1016/j.ceramint.2015.05.002

Cited by 30 publications

(8 citation statements)

References 16 publications

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“…Previous study 41 indicated that the mean STS of slag‐based geopolymer concrete containing 1% ISF was around 5.15 MPa, which was 32% lower than the mean STS (6.84 MPa) recorded in this study for the mixtures (TM3, TM4, and TM8) reinforced with 1% RTSF. This is attributed to the interfacial bonding between fibers and matrix.…”

Section: Resultscontrasting

confidence: 88%

“…Previous study 41 indicated that the mean STS of slagbased geopolymer concrete containing 1% ISF was around 5.15 MPa, which was 32% lower than the mean F I G U R E 1 1 Mean signal to noise (S/N) ratio of splitting tensile strength of recycled tire steel fiber-reinforced alkaliactivated slag concrete for the sodium hydroxide (NaOH) solution concentration F I G U R E 1 2 Mean signal to noise (S/N) ratio of splitting tensile strength of recycled tire steel fiber-reinforced alkali-activated slag concrete for recycled tire steel fiber (RTSF) volume fraction…”

Section: Effect Of Rtsf Volume Fractionmentioning

confidence: 99%

“…39 However, the Taguchi method, as an optimization technique that uses orthogonal arrays (OAs), can be employed to evaluate and optimize the influences of parameters on performance with a minimum number of experiments. 40 To the best knowledge of authors, Khalaj et al 41 employed the Taguchi method to determine the optimum mix proportion of slag-based geopolymer concrete reinforced with industrial steel fiber (ISF) by considering the effects of water curing regime, sodium hydroxide (NaOH) concentration, alkaline activator to cement weight ratio and fiber weight on splitting tensile strength (STS). Aghaie et al 42 used the Taguchi method to investigate the effects of the curing time, amount of the flat-end fibers, weight ratio of the anhydrous borax to NaOH solution, and weight ratio of the alkaline activator to the slag on geopolymer concrete and reported the highest STS (10.08 ± 0.86 MPa).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Splitting tensile strength of recycled tire steel fiber‐reinforced alkali‐activated slag concrete designed by Taguchi method

Eskandarinia

Esmailzade

Aslani

2022

Structural Concrete

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Despite offering several benefits in terms of environment and economics, few studies were conducted on the ground granulated blast furnace slag (GGBFS) based alkali-activated concrete reinforced with recycled tire steel fibers (RTSFs). Therefore, this paper employed the Taguchi method to investigate and optimize the influence of GGBFS content, the alkaline solution to GGBFS content ratio, sodium hydroxide solution concentration, and RTSF volume fraction on splitting tensile strength (STS) of recycled tire steel fiberreinforced alkali-activated slag concrete (RTSFR-AASC). The microstructural evaluation was done through scanning electron microscopy, and Fourier transform infrared spectroscopy (FTIR) analyses. The results indicated that the fiber content, the most efficient parameter on STS, led to a considerable enhancement in the performance characteristic. Microstructural analysis proved the variations in formation of C-S-H gel. The results of the confirmation experiment on the proposed optimized RTSFR-AASC mixture with the highest 28-day STS (7.11 MPa) confirmed the effectiveness of the Taguchi method. K E Y W O R D Sfiber-reinforced alkali-activated concrete, ground granulated blast furnace slag, microstructural analysis, recycled tire steel fiber, splitting tensile strength, Taguchi method

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Section: Resultscontrasting

confidence: 88%

Section: Effect Of Rtsf Volume Fractionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Splitting tensile strength of recycled tire steel fiber‐reinforced alkali‐activated slag concrete designed by Taguchi method

Eskandarinia

Esmailzade

Aslani

2022

Structural Concrete

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“…Effect of fiber content on the tensile strength of geopolymer. 16,24,25,42,46,54,55 Reproduced with permission. 16,24,25,42,46,54,55 Elsevier 2023.…”

Section: F I G U R Ementioning

confidence: 99%

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progress

Qin,

Yan,

Zhou

et al. 2023

Engineering Reports

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Geopolymer concrete has similar mechanical properties to ordinary Portland cement (OPC) concrete, and even better properties in high temperature, high corrosion environment. However, geopolymer still has the disadvantages of large shrinkage and high brittleness, which greatly limit its application. Fiber reinforcement is widely used in various geopolymer systems to overcome the brittleness issue, but still retains the high strength. Over the past 10 years, great progress has been made in the research of fiber reinforced geopolymers in the aspect of toughening efficiency and durability improvement. Many studies have been conducted on fiber reinforced geopolymers, but there are still few systematic summaries on the addition of inorganic fibers and organic fibers to geopolymers. What is more there are many novel studies such as the application of geopolymers to 3D printing and the new concept of fiber factor have not been reviewed. In this paper, inorganic fibers, natural fibers and synthetic fibers in geopolymers are briefly reviewed, and their specific effects on geopolymers' compressive, flexural, tensile strength, fracture toughness, shear strength and durability such as shrinkage, chemical resistance, freeze–thaw resistance are reviewed. The current understanding of bonding mechanism and fiber‐geopolymer interface are also discussed, and related knowledge gaps and future work challenges are correspondingly pointed out.

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“…6. Effect of fiber content on the tensile strength of geopolymer [13,21,22,36,40,45,46] The tensile strength of the geopolymer increases with the addition of steel fiber because of its greater rigidity.…”

Section: Tensile Strengthmentioning

confidence: 99%

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progressd

Qin

Yan

Zhou

et al. 2022

Preprint

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Geopolymer concrete shares similar mechanical properties with ordinary Portland cement (OPC) concrete, and is even provided with better performances in high temperature and high corrosion circumstances. However, geopolymer binder is still subject to the disadvantages of large shrinkage and high brittleness, which greatly limit its application. Fiber reinforcement is widely used in various geopolymer systems to overcome the brittleness issue, but retains the high strength. Over the past 10 years, a significant advance has been made in the research of fiber reinforced geopolymers in terms of toughening efficiency and durability improvement. This paper, as a mini review, focuses on three types of fibers, i.e., inorganic fiber, natural fiber and synthetic fiber, in geopolymers, and their specific effects on compressive, flexural and tensile strengths, fractural toughness, shear strength and durability including shrinkage, chemical and freezing-thaw resistances. The recement understanding of bonding mechanism and fiber-geopolymer interface are also discussed, and knowledge gaps and future work challenges are correspondingly pointed out.

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Split tensile strength of slag-based geopolymer composites reinforced with steel fibers: Application of Taguchi method in evaluating the effect of production parameters and their optimum condition

Cited by 30 publications

References 16 publications

Splitting tensile strength of recycled tire steel fiber‐reinforced alkali‐activated slag concrete designed by Taguchi method

Splitting tensile strength of recycled tire steel fiber‐reinforced alkali‐activated slag concrete designed by Taguchi method

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progress

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progressd

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