Mechanical and structural properties of waste rope fibers-based concrete: An experimental study

Abdulridha, Shereen Qasim; Nasr, Mohammed Salah; Al-Abbas, Bahaa Hussain; Hasan, Zaid Ali

doi:10.1016/j.cscm.2022.e00964

Cited by 7 publications

(16 citation statements)

References 28 publications

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“…The lowest density was recorded in the WG25F0.25 mixture and was 2024.1 kg/m 3 (or 1% less than the reference mixture density), while the highest density was given by the WG5F0.75 mixture and was 2066.7 kg/m 3 (or 1.1% higher than control sample density). Similar results were recorded previously [28].…”

Section: Dry Densitysupporting

confidence: 93%

“…It was found that the PET decreased the fresh characteristics of SCC while the flexural and compressive strengths were improved. Abdulridha et al (2021) [28] studied the mechanical and structural behavior of concrete-incorporated waste rope fibers (WRF) in proportions of 0%, 0.25%, 0.5% and 1% by weight of concrete. It was found that WRF enhanced concrete's compressive strength and flexural strength by 22% and 4.3%, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Properties of a Low-Carbon Binder-Based Mortar Made with Waste LCD Glass and Waste Rope (Nylon) Fibers

Nasr

Shubbar

Hashim³

et al. 2023

Processes

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Carbon dioxide emissions are one of the problems that arouses the interest of scientists because of their harmful effects on the environment and climate. The construction sector, particularly the cement industry, is a significant source of CO2. On the other hand, solid waste constitutes a major problem facing governments due to the difficulty of decomposing it and the fact that it requires large areas for landfill. Among these wastes are LCD waste glass (WG) and used rope waste. Therefore, reusing these wastes, for example, in concrete technology, is a promising solution to reduce their environmental impact. Limited studies have dealt with the simultaneous utilization of glass waste as a substitute for cement and rope waste (nylon) fiber (WRF). Therefore, this study aimed to partially replace cement with WG with the addition of rope waste as fibers. Thirteen mixtures were poured: a reference mixture (without replacement or addition) and three other groups containing WG and WRF in proportions of 5, 15 and 25% by cement weight and 0.25, 0.5 and 0.75% by mortar weight, respectively. Flow rate, compression strength, flexural strength, dry density, water absorption, dynamic modulus of elasticity, ultrasonic pulse velocity and electrical resistivity were tested. The results indicate that the best ratio for replacing cement with WG without fibers was 5% of the weight of cement. However, using WRF increased the amount of glass replacement to 25%, with an improvement in strength and durability characteristics.

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Section: Dry Densitysupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Properties of a Low-Carbon Binder-Based Mortar Made with Waste LCD Glass and Waste Rope (Nylon) Fibers

Nasr

Shubbar

Hashim³

et al. 2023

Processes

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“…This is consistent with the results obtained from previous physical parameter tests. Abdulridha [30] also obtained a similar conclusion, they added waste rope fibers to concrete and found that UPV decreased gradually with the increase of fiber content. Using the correlation law between ultrasonic pulse velocity and concrete quality, the prediction model is established by the regression analysis method (Figure 6c).…”

Section: Ultrasonic Pulse Velocitymentioning

confidence: 62%

An Emerging Solution for Medical Waste: Reuse of COVID-19 Protective Suit in Concrete

2022

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With the continuous spread of COVID-19 (coronavirus disease 2019), a large number of medical protective suits (PS) have been used and discarded, causing great damage to the ecological environment. The main component of PS is polypropylene plastic, which will enter the oceans, rivers, and animals with groundwater and will not decompose for hundreds of years. Therefore, this global health crisis not only affects the health and economy of the world’s population now but will also continue to disrupt our daily lives after the pandemic ends. The main objective of this study is to explore an effective method to reduce the biological and environmental hazards of medical waste by combining PS with concrete. Due to the excessive size of the PS, protective suit fibers (PSF) were obtained from PS by cutting. To investigate the possibility of using PS in concrete, a series of experiments were conducted, including a physical parameter test, compression test, split tensile test, ultrasonic pulse velocity test, scanning electron microscope (SEM), and finite element simulation. The results indicated that the introduction of PSF significantly enhanced the mechanical properties of concrete, and the maximum compressive strength and splitting tensile strength increased by 7.3% and 43.6%, respectively. The ultrasonic pulse velocity and density of concrete containing PSF decreased compared with the control group. The images of SEM show that PSF binds tightly to the cement matrix and hinders the propagation of micro-cracks. The introduction of PS into the concrete material leads to the improvement of the mechanical properties of concrete and the improvement of the overall quality of the concrete, which is of great significance for reducing the damage of medical waste to the environment. The originality of this work is that polypropylene fibers acquired from PS were put into concrete for the first time for performance testing.

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“…At waste rope fiber proportions of 0.25%, 0.5%, and 1%, respectively, the slump reduction rates were 28.6%, 52.7%, and 84.6% in contrast to the reference sample. 45 Ahmad et al 16 noted that the interfacial connection between concrete and fibers in concrete inhibits the distribution and raises the viscosity of the mixes, which may be used to explain this phenomenon. The capacity of the interfacial connection between the concrete and the fibers changes as the fiber content rises because more fibers need more cement paste to coat them.…”

Section: Engineering Propertiesmentioning

confidence: 99%

Review on characteristics of concrete reinforced with nylon fiber

Jahangir Qureshi,

Ahmad,

Aljabr

et al. 2023

Journal of Engineered Fibers and Fabrics

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In tension, concrete is often weaker than in compression. To increased the tensile strength of concrete, fibers are added. Nylon fibers (NF) have shown promising results in previous research and tests since their presence has shown significant increases in concrete performance. The purpose of this research is to gather data from previous studies on NF-reinforced concrete (FRC). The key components of this review include concrete flowability, compressive strength, tensile strength, impact strength, rehabilitation, performance during irradiation, and fire resistance. In addition, the article examines the fracture behavior and failure patterns of nylon FRC. The results show that NF enhanced concrete performance, notably tensile capacity, owing to bridging mechanisms, but lowered concrete flow properties. However, the some researcher demonstrates that NF does not improved the compressive capacity significantly. Therefore, the study proposes more research to increase the compressive capacity of concrete by applying alternative treatments to NF or by employing secondary cementitious materials.

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Mechanical and structural properties of waste rope fibers-based concrete: An experimental study

Cited by 7 publications

References 28 publications

Properties of a Low-Carbon Binder-Based Mortar Made with Waste LCD Glass and Waste Rope (Nylon) Fibers

Properties of a Low-Carbon Binder-Based Mortar Made with Waste LCD Glass and Waste Rope (Nylon) Fibers

An Emerging Solution for Medical Waste: Reuse of COVID-19 Protective Suit in Concrete

Review on characteristics of concrete reinforced with nylon fiber

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