Cost-performance balance and new image analysis technique for ultra-high performance hybrid nano-based fiber-reinforced concrete

Khan, Mohammad Iqbal; Fares, Galal; Abbas, Yassir M.

doi:10.1016/j.conbuildmat.2021.125753

Cited by 18 publications

(5 citation statements)

References 29 publications

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“…In particular, the compressive strength diminished from 104 MPa for the GP-free mixture to 74 MPa for the mixture containing 40% GP. As the curing period extended to 28 days, a similar trend endured, although the UHPC mixtures incorporating 5% and 10% GP exhibited strengths above the widely accepted lower threshold of 120 MPa for UHPC [41,52,53]. The mixture devoid of GP demonstrated the highest compressive strength, registering 129 MPa, while the blend containing 40% GP exhibited the lowest, with a reading of 95 MPa.…”

Section: Compressive Strengthmentioning

confidence: 67%

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Eco-Innovative UHPC—Enhancing Sustainability, Workability, and Ductility with Recycled Glass Cullet Powder and Plastic Bottle Hybrid Fibers

Khan,

Fares,

Abbas

et al. 2024

Materials

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Utilizing waste materials in producing ultra-high-performance concrete (UHPC) represents a highly effective approach to creating environmentally sustainable concrete using renewable resources. This study focused on incorporating ground glass cullet (GP) at various replacement levels in UHPC production. Additionally, plastic bottle fibers (PBFs) were derived from discarded plastic bottles and employed in the mix. The replacement levels for GP spanned from 0% to 40%. Single-use plastic bottles were transformed into strip fibers, both with and without the inclusion of microsteel fibers, at varying contents of 1.1% and 2.2% (volume-based). A single-fiber test was conducted on PBFs under different strain rates. The introduction of optimal GP content had a profound positive impact on compressive strength. Incorporating 2.2% plastic strips induced strain hardening behavior, while further inclusion of microsteel fibers resulted in substantial enhancements in mechanical properties. Two types of microsteel fibers were employed, characterized by different aspect ratios of 65 and 100. The optimum GP content was identified as 10%. Moreover, the UHPC mix achieved superior compressive strength, exceeding 140 MPa when composed of 1.3% (volume-based) microsteel fibers with an aspect ratio of 65 and 2.2% PBF (volume-based). Notably, mixtures featuring microsteel fibers with a higher aspect ratio demonstrated the highest flexural strength, exceeding 8000 N in the presence of 2.2% PBF. Longer microsteel fibers exhibited adequate slip properties, facilitating strain transfer and achieving a strain-hardening response in conjunction with plastic bottle fibers. These findings illuminate the potential for harnessing hazardous waste materials to improve the performance and sustainability of UHPC formulations.

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Section: Compressive Strengthmentioning

confidence: 67%

“…For the formulation of the UHPC blends, two distinct categories of microsteel fibers were utilized. Notably, the authors previously conducted the optimization of these fibers in earlier research [41]. Microscopic analyses of these fibers are visually represented in Figures 7 and 8.…”

Section: Natural Aggregates Steel Fibers and Chemical Admixturesmentioning

confidence: 99%

Eco-Innovative UHPC—Enhancing Sustainability, Workability, and Ductility with Recycled Glass Cullet Powder and Plastic Bottle Hybrid Fibers

Khan,

Fares,

Abbas

et al. 2024

Materials

Self Cite

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“…Non-destructive methods, on the other hand, do not involve altering or damaging the structure. Various non-destructive methods are available for monitoring the structural health of concrete, including visual inspection, ultrasonic testing, infrared thermography, and fiber-optic sensing [5][6][7][8][9]. These methods offer information on the condition of structures without causing any alteration, making them a practical and cost-effective choice for monitoring the health of concrete structures over an extended period.…”

Section: Introductionmentioning

confidence: 99%

“…These methods offer information on the condition of structures without causing any alteration, making them a practical and cost-effective choice for monitoring the health of concrete structures over an extended period. They are widely used in real-time monitoring and provide data for condition assessment, trend analysis, and damage identification [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Acoustic sensors, adept at capturing even the minutest sound waves and structural oscillations, offer real-time insights into the evolving stages of cement hydration. This technology allows for the identification of critical milestones in the hydration process, such as the initial setting and final setting times, as well as the transition from the plastic to the hardened state of concrete [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Exploring the Potential of Promising Sensor Technologies for Concrete Structural Health Monitoring

Shilar,

Ganachari,

Patil

et al. 2024

Materials

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Structural health monitoring (SHM) is crucial for maintaining concrete infrastructure. The data collected by these sensors are processed and analyzed using various analysis tools under different loadings and exposure to external conditions. Sensor-based investigation on concrete has been carried out for technologies used for designing structural health monitoring sensors. A Sensor-Infused Structural Analysis such as interfacial bond-slip model, corroded steel bar, fiber-optic sensors, carbon black and polypropylene fiber, concrete cracks, concrete carbonation, strain transfer model, and vibrational-based monitor. The compressive strength (CS) and split tensile strength (STS) values of the analyzed material fall within a range from 26 to 36 MPa and from 2 to 3 MPa, respectively. The material being studied has a range of flexural strength (FS) and density values that fall between 4.5 and 7 MPa and between 2250 and 2550 kg/m3. The average squared difference between the predicted and actual compressive strength values was found to be 4.405. With cement ratios of 0.3, 0.4, and 0.5, the shear strength value ranged from 4.4 to 5.6 MPa. The maximum shear strength was observed for a water–cement ratio of 0.4, with 5.5 MPa, followed by a water–cement ratio of 0.3, with 5 MPa. Optimizing the water–cement ratio achieves robust concrete (at 0.50), while a lower ratio may hinder strength (at 0.30). PZT sensors and stress-wave measurements aid in the precise structural monitoring, enhanced by steel fibers and carbon black, for improved sensitivity and mechanical properties. These findings incorporate a wide range of applications, including crack detection; strain and deformation analysis; and monitoring of temperature, moisture, and corrosion. This review pioneers sensor technology for concrete monitoring (Goal 9), urban safety (Goal 11), climate resilience (Goal 13), coastal preservation (Goal 14), and habitat protection (Goal 15) of the United Nations’ Sustainable Development Goals.

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Effect of Basalt and Steel Fibers on the Microstructure and Strength of Concrete with Desert Sand

Hamada,

Abed,

Al-Sadoon

et al. 2024

Arab J Sci Eng

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Cost-performance balance and new image analysis technique for ultra-high performance hybrid nano-based fiber-reinforced concrete

Cited by 18 publications

References 29 publications

Eco-Innovative UHPC—Enhancing Sustainability, Workability, and Ductility with Recycled Glass Cullet Powder and Plastic Bottle Hybrid Fibers

Eco-Innovative UHPC—Enhancing Sustainability, Workability, and Ductility with Recycled Glass Cullet Powder and Plastic Bottle Hybrid Fibers

Exploring the Potential of Promising Sensor Technologies for Concrete Structural Health Monitoring

Effect of Basalt and Steel Fibers on the Microstructure and Strength of Concrete with Desert Sand

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