Characteristics of Sustainable Self-compacting Concrete Reinforced by Fibres from Waste Materials

Borhan, Tumadhir Merawi; Dhaheer, M. S. Abo; Mahdi, Zaid Abdulzahra

doi:10.1007/s13369-020-04460-3

Cited by 19 publications

(5 citation statements)

References 29 publications

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“…The materials and proportion were ordinary Portland cement type I (383 kg/m 3 ), two aggregates: natural sand (672 kg/m 3 ), and medium gravel of 20 mm (1100 kg/m 3 ). All the samples had the same water/cement ratio (0.6), which is similar to a previous study [21]. The density in g/m 3 was 3.15, 2.50, and 2.68 for the cement, natural sand, and medium gravel, respectively.…”

Section: Materials Mixing Procedures and Castingsupporting

confidence: 82%

“…Shaikh [20] studied the tensile and flexural behaviour of recycled polyethylene terephthalate fibre reinforced geopolymer composites, indicating that the composite had good mechanical strength. Borhan et al [21] tested concrete reinforced with fibres from waste materials, pointed out that the FRC with polyvinyl waste elements affected the slump behaviour. Meza and Siddique [22] showed a considerable augment on the residual strength of the FRC with waste PET fibres under flexural load.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Optimization of Concrete with Recycled PET Fibres Based on a Statistical-Experimental Study

et al. 2021

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Discarded polyethylene terephthalate (PET) bottles have damaged our ecosystem. Problems of marine fauna conservation and land fertility have been related to the disposal of these materials. Recycled fibre is an opportunity to reduce the levels of waste in the world and increase the mechanical performance of the concrete. PET as concrete reinforcement has demonstrated ductility and post-cracking strength. However, its performance could be optimized. This study considers a statistical-experimental analysis to evaluate recycled PET fibre reinforced concrete with various fibre dose and aspect ratio. 120 samples were experimented under workability, compressive, flexural, and splitting tensile tests. The results pointed out that the fibre dose has more influence on the responses than its fibre aspect ratio, with statistical relation on the tensional toughness, equivalent flexural strength ratio, volumetric weight, and the number of fibres. Moreover, the fibre aspect ratio has a statistical impact on the tensional toughness. In general, the data indicates that the optimal recycled PET fibre reinforced concrete generates a superior performance than control samples, with an improvement similar to those reinforced with virgin fibres.

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Section: Materials Mixing Procedures and Castingsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Mechanical Optimization of Concrete with Recycled PET Fibres Based on a Statistical-Experimental Study

et al. 2021

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“…By replacing concrete constituents with less expensive, recycled, or more sustainable materials, environmental impacts can be minimized. The use of waste materials in SCC is a promising way to reduce the environmental impact of concrete production [19,20]. Biomedical waste poses a significant environmental problem among many other types of waste simply because it is potentially hazardous.…”

Section: Introductionmentioning

confidence: 99%

Machine Learning Models for the Prediction of the Compressive Strength of Self-Compacting Concrete Incorporating Incinerated Bio-Medical Waste Ash

Chakravarthy H G,

Seenappa,

Naganna

et al. 2023

Sustainability

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Self-compacting concrete (SCC) is a special form of high-performance concrete that is highly efficient in its filling, flowing, and passing abilities. In this study, an attempt has been made to model the compressive strength (CS) of SCC mixes using machine-learning approaches. The SCC mixes were designed considering lightweight expandable clay aggregate (LECA) as a partial replacement for coarse aggregate; ground granulated blast-furnace slag (GGBS) as a partial replacement for binding material (cement); and incinerated bio-medical waste ash (IBMWA) as a partial replacement for fine aggregate. LECA, GGBS, and IBMWA were replaced with coarse aggregate, cement, and fine aggregate, respectively at different substitution levels of 10%, 20%, and 30%. M30-grade SCC mixes were designed for two different water/binder ratios—0.40 and 0.45—and the CS of the SCC mixes was experimentally determined along with the fresh state properties assessed by slump-flow, L-box, J-ring, and V-funnel tests. The CS of the SCC mixes obtained from the experimental analysis was considered for machine learning (ML)-based modeling using paradigms such as artificial neural networks (ANN), gradient tree boosting (GTB), and CatBoost Regressor (CBR). The ML models were developed considering the compressive strength of SCC as the target parameter. The quantities of materials (in terms of %), water-to-binder ratio, and density of the SCC specimens were used as input variables to simulate the ML models. The results from the experimental analysis show that the optimum replacement percentages for cement, coarse, and fine aggregates were 30%, 10%, and 20%, respectively. The ML models were successful in modeling the compressive strength of SCC mixes with higher accuracy and the least errors. The CBR model performed relatively better than the other two ML models, with relatively higher efficiency (KGE = 0.9671) and the least error (mean absolute error = 0.52 MPa) during the testing phase.

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“…A direct polymer has incredible mechanical properties and extraordinary layered reliability under factor load. Semi clear thermoplastic polyester, intense, low gas permeability, falsely and thermally consistent, successfully dealt with and dealt with, mileage safe and non biodegradable is the ordinary ascribes of PET [5]. Considering its adaptability, it is also used in materials, films, utility item, athletic attire, etc.…”

Section: Introductionmentioning

confidence: 99%

Compressive Strength of Waste PET Bottle Based Fibre

Somwanshi

Sharma²,

Sharma³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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PET (polyethylene terephthalate) bottles have progressively turned into a crucial and fundamental piece of an everyday person’s life. Thus the need emerges to course these waste plastic containers to their ideal use. To add to it, incorporation of waste PET bottles in concrete composites is a promising technique for developing sustainable composite materials which may be applied to the construction industry. Hence concrete with waste PET bottles proves not only as an effective plastic waste management technique, but also an approach towards economic, environment friendly and sustainable development of building materials in the future. In the research work, an experimental study has been carried out to analyze the possibility of using waste PET bottle fibres with 3 different aspect ratios of 10, 20, and 30, in concrete at different replacement dosages of 0.5%, 1%, and 1.5% of sand by weight, and compared against control mix with no replacements of sand.

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Characteristics of Sustainable Self-compacting Concrete Reinforced by Fibres from Waste Materials

Cited by 19 publications

References 29 publications

Mechanical Optimization of Concrete with Recycled PET Fibres Based on a Statistical-Experimental Study

Mechanical Optimization of Concrete with Recycled PET Fibres Based on a Statistical-Experimental Study

Machine Learning Models for the Prediction of the Compressive Strength of Self-Compacting Concrete Incorporating Incinerated Bio-Medical Waste Ash

Compressive Strength of Waste PET Bottle Based Fibre

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