Mechanical Properties of Hybrid
Steel–Glass Fiber-Reinforced Reactive Powder Concrete After
Exposure to Elevated Temperatures

Raza, Syed Safdar; Qureshi, Liaqat Ali; Ali, Babar; Raza, Ali; Khan, Mudasser Muneer; Salahuddin, Hammad

doi:10.1007/s13369-020-04435-4

Cited by 28 publications

(10 citation statements)

References 41 publications

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“…This is because of the e ciency of GF in controlling the cracks by delaying its rst crack load [87,88]. Another reason could be the high elastic modulus and tensile strength of the GF which ultimately improves the exural load carrying capacity of GFRC [89]. Similar trend and behavior of exural strength was also reported by previous research studies by using glass ber, steel ber and carbon ber etc.…”

Section: Flexural Strength Energy Absorption and Toughness Indicessupporting

confidence: 73%

“…The splitting tensile strength (STS) for 28 days was calculated from the maximum load taken by the specimen during the splitting tensile strength test [78]. The coe cient of variance, STS, SPE, SCE, SE (Maximum-P) and STI of CS, and modi ed are illustrated in [57,88,89]. Similar fashion of increasing trend and behavior of splitting tensile strength, toughness indices and energy absorption were reported by previous research studies by using glass ber, steel ber and carbon ber etc.…”

Section: Split Tensile Strength Energy Absorption and Toughness Indicesmentioning

confidence: 99%

“…e ciency of GF of controlling the cracks, by delaying its rst crack development [87,88]. Another reason could be the high elastic modulus and tensile strength of the GF, which ultimately provide the bridging effect and improves the FCE, FE (Maximum-P) and FTI of the modi ed specimens [89]. Similar incremental trend and behavior of exural strength, toughness indices and energy absorption were reported by previous research studies by using glass ber, steel ber and carbon ber etc.…”

Section: Flexural Strength Energy Absorption and Toughness Indicesmentioning

confidence: 99%

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Effect of Glass Fibers on The Mechanical Behavior As Well As Energy Absorption Capacity and Toughness Indices of Concrete Bridge Decks.

Jan

Zhang

Khan

et al. 2021

Preprint

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In this study, the incorporation of glass fibers in concrete bridge decks has been studied for improving its mechanical properties as well as energy absorption capacity and toughness indices. The mix proportion of 1:3:2 (cement:sand:aggregate) was selected having water-cement ratio of 0.71. For the manufacturing of glass fiber reinforced concrete (GFRC), the glass fibers (2-inch) were incorporated at a percentage level of 1%, 2%, 3% and 4% by weight of cement in concrete mixes. The findings reveal that the split-tensile and flexural strength of GFRC increases at all the percentage levels, however, the compressive strength of the blended mixes get reduced by increasing the dosage of glass fibers in the concrete. Besides, the energy absorption and toughness indices are also studied for different types of loadings (i.e. compressive, splitting-tensile and flexural loadings) up to a percentage level of 4%. The findings reveal that the split-tensile and flexural energy absorption was increased with the increase in the dosage of glass fibers in comparison with the conventional concrete mixes, however, the compressive energy absorption of the blended mixes get reduced by increasing the dosage of glass fibers in the concrete. Whereas, the toughness indices for compressive, spilt-tensile and flexure was increased while increasing the percentage of glass fibers as compared to the conventional concrete. Among the different percentages of glass fibers, its 4% addition gives better results as compared to 1%, 2% and 3%. Hence, the 4% of GF can be suggested to be the optimum percentage of the fibers for the selected mix-design in controlling the resistance of concrete in the bridge decks. Although, the energy absorption of GFRC is lesser in comparison with the toughness indices, GFRC are appropriate for enhancing ductility and resistance against loadings in concrete bridge decks.

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Section: Flexural Strength Energy Absorption and Toughness Indicessupporting

confidence: 73%

Section: Split Tensile Strength Energy Absorption and Toughness Indicesmentioning

confidence: 99%

Section: Flexural Strength Energy Absorption and Toughness Indicesmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Glass Fibers on The Mechanical Behavior As Well As Energy Absorption Capacity and Toughness Indices of Concrete Bridge Decks.

Jan

Zhang

Khan

et al. 2021

Preprint

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“…If the temperature rises, water from the binder structure evaporates, improving the cement paste and increasing concrete strength. Thus, Al+Ns mixes with dense microstructures have a relatively low increase in strength due to less vaporization of water and increased pore pressure (19) . The M4 and M6 mix showed the highest RCS of 1.15 at 200 • C. The vaporization of water from the voids reduced RCS from 1 to 0.89 at 400 • C as fire length increased from 4 to 8 hours.…”

Section: Methodsmentioning

confidence: 99%

The influence of adding alccofine and nano-silica on the behavior of concrete at elevated temperatures

Ashwini¹,

Rao²

2021

IJST

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“…To the best knowledge of authors, a very few studies have investigated the effect of different doses of GF on the normal and elevated temperature performance of high strength concrete family including RPC. Authors have explored [21] hybridization benefits of steel-GF and concluded that when 2% steel-1%GF are used together, residual, and normal temperature properties of RPC are better than that of the single steel fiber-reinforced RPC. In another study [22], authors explored and compared performance of RPCs at a constant (i.e.…”

Section: Introductionmentioning

confidence: 99%

Residual mechanical strength of glass fiber reinforced reactive powder concrete exposed to elevated temperatures

2020

Self Cite

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Reactive powder concrete (RPC) has a denser microstructure which makes it vulnerable to spalling when exposed to high temperatures. Extraordinary applications of RPC in structures requiring high strength and durability have drawn the attention to explore the behavior of RPC at high temperatures. This research work aims to study the effect of different dosages of glass fibers (GF) on the mechanical performance of RPC after exposure to high temperatures i.e. 200, 400, 600, and 800 °C. Three main mechanical properties were evaluated such as compressive strength, split tensile strength, and flexural strength. Experiments showed that spalling was significantly controlled using the studied dosages of GF i.e. 2-4%. Effect of dosage on residual mechanical properties varied with the changing temperature. Up to 400 °C, RPC with 3%GF showed maximum residual strength properties, whereas, at 600 and 800 °C, RPC with 4% showed maximum residual mechanical strength. The role of fibers in compressive strength was more useful above 400 °C, whereas, flexural strength and split tensile strength were benefited from GF addition at both normal and elevated temperatures.

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Mechanical Properties of Hybrid Steel–Glass Fiber-Reinforced Reactive Powder Concrete After Exposure to Elevated Temperatures

Cited by 28 publications

References 41 publications

Effect of Glass Fibers on The Mechanical Behavior As Well As Energy Absorption Capacity and Toughness Indices of Concrete Bridge Decks.

Effect of Glass Fibers on The Mechanical Behavior As Well As Energy Absorption Capacity and Toughness Indices of Concrete Bridge Decks.

The influence of adding alccofine and nano-silica on the behavior of concrete at elevated temperatures

Residual mechanical strength of glass fiber reinforced reactive powder concrete exposed to elevated temperatures

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