Glass Fibre Reinforced Concrete (GFRC)

Iskender, Muhammed; Karasu, Bekir

doi:10.31202/ecjse.371950

Cited by 22 publications

(14 citation statements)

References 136 publications

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“…The compressive strength of the test-tubes R0, R1, and R5 are less than value of compressive strength of R3 test-tube by a percentage of 13.32%, 0.43%, 13.04% respectively at the 365 days age. These results confirmed that the percentage of fibers to obtain a better compressive strength is between 2 and 4% according to İskender et al [9].…”

Section: Compression Testsupporting

confidence: 89%

“…The flexural strength of the test-tubes R0, R1, and R3 compared to the R5 test-tubes, show regressions of 12.32%, 5.12%, 3.66% respectively at the 365 days age. Consequently, the addition of 5% of glass fibers with a length of 36 mm improves the flexural strength of concrete [9]. Figure 4 shows that the mass of the R0 test-tubes is higher than the other test-tubes, the R5 test-tube present lower value of flexural strength at the age of 180 and 365 days respectively.…”

Section: Figure 3 Flexural Strength Of Concrete Specimens With Differ...mentioning

confidence: 97%

“…Usually, the optimal cementing matrix contains 2 to 4% of glass fibers to the volume of concrete, with length between 6 and 40 mm. The rate of aging of the composites cement-glass depends on type of glass fiber used and condition of the external environment or whether [9]. Generally, the glass fibers cut is added in second stages of fresh concrete with a speed of weak relaxation to obtain a maximum workability, facility of their dispersion in the volume and limited the damage to surfaces of fibers [10].…”

Section: Introductionmentioning

confidence: 99%

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Study of the Aging of a Concrete Reinforced by Alkali Resistant Glass Fiber in the Wet Environment

Boumehraz¹,

Mellas²,

Goudjil³

et al. 2020

ACSM

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The Glass fiber reinforced concrete (GFRC) is a composite material; it is regarded as a suitable material for concrete structures. The GFRC is reinforced with alkali resistant (AR) glass fibers, this type of glass fibers understands from 15 to 20% of the zirconium mass; this addition improves considerably the durability of glass in the alkaline environments, but does not solve entirely the problems of its degradation. Generally, the rate of aging of the composite cement-glass depends on type of glass fiber used and condition of the environment. The objective of this paper is to study the effect of glass fibers on the compressive and flexural strength of a cement concrete (sulfate resistant cement) SRC reinforced by alkali-resistant high performance (ARHP) glass fibers and immersed in a wet medium. The results obtained in this study showed that the compressive strength and flexural strength of GFRC depend on the percentage of glass fibers and the exposure time of specimen in the wet medium. The optimal percentage of glass fibers is 3% for both strengths. More still, percentage of 5% of glass fibers influence negatively on the mechanical characteristics of the concrete fiber. In addition, the use of SRC cement with additions of 3% of silica fume and 20% of the slag can decrease the porosity of the concrete fiber and improve the durability of the concrete fiber.

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Section: Compression Testsupporting

confidence: 89%

Section: Figure 3 Flexural Strength Of Concrete Specimens With Differ...mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Study of the Aging of a Concrete Reinforced by Alkali Resistant Glass Fiber in the Wet Environment

Boumehraz¹,

Mellas²,

Goudjil³

et al. 2020

ACSM

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“…Common technological solutions to mitigate poor behavior under tensile load and suddenness of the failure include the introduction of reinforcing steel bars or alternatively various kinds of fibers. Most reinforcement fibers are made of minerals, glass, polymer, steel or carbon [1][2][3][4][5]. Fiber reinforcement does not necessarily lead to improvement of tensile strength, as the fibers' mechanical properties might be unsuitable; they may be below the critical fiber length or the bond between fiber and matrix might not be strong enough to support full transition of loads from one material to another, which has a significant impact on the macroscopic response [6].…”

Section: Introductionmentioning

confidence: 99%

Influence of fiber alignment on pseudoductility and microcracking in a cementitious carbon fiber composite material

et al. 2021

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This research examines the effect of fiber alignment on the performance of an exceptionally tough 3D-printable short carbon fiber reinforced cementitious composite material, the flexural strength of which can exceed 100 N/mm2. The material shows pseudoductility caused by strain-hardening and microcracking. An extrusion-based manufacturing process allows accurate control over the spatial alignment of the fibers’ orientation, since extrusion through a tight nozzle leads to nearly unidirectional alignment of the fibers with respect to the directional movement of the nozzle. Specimens were investigated using mechanical tests (flexural and tensile load), augmented by non-destructive methods such as X-ray 3D computed tomography and acoustic emission analysis to gain insight into the microstructure. Additionally, digital image correlation is used to visualize the microcracking process. X-ray CT confirms that about 70% of fibers show less than 10° deviation from the extrusion direction. Systematic variations of the fiber alignment with respect to the direction of tensile load show that carbon fibers enhance the flexural strength of the test specimens as long as their alignment angle does not deviate by more than 20° from the direction of the acting tensile stress. Acoustic emission analysis is capable of evaluating the spatiotemporal degradation behavior during loading and shows consistent results with the microstructural damage observed in CT scans. The strong connection of fiber alignment and flexural strength ties into a change from ductile to brittle failure caused by degradation on a microstructural level, as seen by complementary results acquired from the aforementioned methods of investigation.

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“…It consists of a cement mixture reinforced with alkali-resistant fibers with high flexural strength [4,5]. This allows the manufacture of elements of reduced thickness and less specific weight [6]. When applied to façades, GRC allows standardization of the manufacture and assembly of panels which reduces costs with no decrease in performance.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Self-Cleaning Potential of Glass Fiber Reinforced Concrete (GRC) with TiO2 Nanoparticles

et al. 2022

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The materials used in civil construction are undergoing significant advances to achieve reduced maintenance and increased durability. This study analyzed the self-cleaning potential of Glass fiber Reinforced Concrete (GRC) with the addition of titanium dioxide (TiO2) in contents of 3, 5, and 7% with respect to the mass of cement. We evaluated the self-cleaning GRC plates and the compressive and flexural strength of cylindrical and prismatic specimens. Prepared GRC sample plates were stained with dye solution (rhodamine B and methylene blue) and exposed to the four cardinal solar orientations of a building façade (north, south, east, and west) at different inclination angles (0°, 45°, and 90°) with respect to ground level. Results showed that the samples that presented the greatest performance were plates positioned in a north orientation and inclined at 0° in relation to ground level. The inclusion of TiO2 positively affected the consistency of the mixtures and improved the properties of the GRC in the hardened state. Measured rupture stresses were greater than 100 MPa in compressive strength and 20 MPa in flexure. The results of this study showed that the introduction of TiO2 in concrete with high strengths did have great relevance for the self-cleaning of white concrete.

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Glass Fibre Reinforced Concrete (GFRC)

Cited by 22 publications

References 136 publications

Study of the Aging of a Concrete Reinforced by Alkali Resistant Glass Fiber in the Wet Environment

Study of the Aging of a Concrete Reinforced by Alkali Resistant Glass Fiber in the Wet Environment

Influence of fiber alignment on pseudoductility and microcracking in a cementitious carbon fiber composite material

Analysis of the Self-Cleaning Potential of Glass Fiber Reinforced Concrete (GRC) with TiO2 Nanoparticles

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