Nanomodified Cementitious Composites Incorporating Basalt Fiber Pellets under Tensile and Impact Loads

Azzam, A.; Bassuoni, M. T.; Shalaby, Ahmed

doi:10.1061/(asce)mt.1943-5533.0003913

Cited by 14 publications

(8 citation statements)

References 23 publications

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“…The split Hopkinson pressure bar (SHPB) test is one way to investigate this property. The average dynamic compressive strength of NFRCC dramatically dropped as the BFP dosage rose according to the impact stress-strain curves (Figure 6) of NFRCC, as reported by Azzam et al [54]. As the dosage of the BFP increased, more ITZs were formed within the matrix, where micro-cracks started to grow.…”

Section: Impact Loadsupporting

confidence: 69%

“…This phenomenon led to a drop in the ultimate dynamic compressive strength. However, Azzam et al [54] observed that higher BFP dosages increased ductility because of the bridging effect of BFP. Compared to F50-B2.5 (0.622%), the strain at failure for F50-B4.5 and F50-B6.9 was raised by 8 and 15%, respectively.…”

Section: Impact Loadmentioning

confidence: 98%

“…Adequate dosage of fiber gave the BFPs a greater chance to be distributed in the failure area, which effectively stopped cracks from spreading and eventually increased the toughness. Figure 7 illustrates the failure mode of the specimens under impact load experimented by Azzam et al [54]. The mortar was broken up into a pattern of strewn pieces of varying sizes.…”

Section: Impact Loadmentioning

confidence: 99%

See 2 more Smart Citations

Utilization of Novel Basalt Fiber Pellets from Micro- to Macro-Scale, and from Basic to Applied Fields: A Review on Recent Contributions

Ahmed,

Bediwy,

Azzam

et al. 2024

Fibers

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Fiber-reinforced cementitious composites (FRCC) are one of the leading engineering materials in the 21st century, as they offer proficiency in enhancing strength, ductility, and durability in structural engineering applications. Because the recently developed basalt fiber pellets (BFP) offer combined strands of fibers encased in a polymer matrix, they are being prevalently studied to explore new possibilities when used in brittle materials such as mortar and concrete. Hence, this paper synthesizes the intensive research efforts and contributions to this novel class of fibers conducted by the authors. Specifically, it reviews the fresh, mechanical, and durability properties of FRCC incorporating single BFP or hybrid with polyvinyl alcohol fibers and modified with slag/fly ash and nano-materials and its suitability for different field applications. In addition, the nano- and meso-scale modeling of such matrices are described. BFP significantly contributes to improving post-cracking flexural behavior by toughening the cementitious matrix and minimizing strength losses when exposed to harsh environments. All results show promising progress in the development of high-performance FRCC comprising BFP, with potential success for structural and pavement applications.

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Section: Impact Loadsupporting

confidence: 69%

Section: Impact Loadmentioning

confidence: 98%

Section: Impact Loadmentioning

confidence: 99%

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Utilization of Novel Basalt Fiber Pellets from Micro- to Macro-Scale, and from Basic to Applied Fields: A Review on Recent Contributions

Ahmed,

Bediwy,

Azzam

et al. 2024

Fibers

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show abstract

“…The binder comprised high content (50% by mass of binder) SCM with nano-silica addition (6%). The composites showed superior mechanical properties and adequate resistance to salt-frost scaling (according to ASTM C672/C672M [13]) [9,14]. These findings are the primary motive for the present study.…”

Section: Introductionmentioning

confidence: 91%

Nano-Modified Cementitious Composites Reinforced with Basalt Fiber Pellets for Repair/Overlay applications

Azzam¹,

Bassuoni²,

Shalaby³

2022

Proceedings of the 7th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'22)

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“…The single pellet pull-out test was conducted at 56 days through testing six replicate blocks (100×100×50 mm) including a single BFP, with an embedded length of 18 mm in the middle of the blocks, with 0.2 mm/min displacement rate [25]. Microstructural tests were performed to corroborate the trends obtained from the single pellet test.…”

Section: Testsmentioning

confidence: 99%

Pull-out of Basalt Fibre Pellets from Cementitious Composites

Elhadary¹,

Bassuoni²

2022

Proceedings of the 7th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'22)

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Nanomodified Cementitious Composites Incorporating Basalt Fiber Pellets under Tensile and Impact Loads

Cited by 14 publications

References 23 publications

Utilization of Novel Basalt Fiber Pellets from Micro- to Macro-Scale, and from Basic to Applied Fields: A Review on Recent Contributions

Utilization of Novel Basalt Fiber Pellets from Micro- to Macro-Scale, and from Basic to Applied Fields: A Review on Recent Contributions

Nano-Modified Cementitious Composites Reinforced with Basalt Fiber Pellets for Repair/Overlay applications

Pull-out of Basalt Fibre Pellets from Cementitious Composites

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