The use of fibres in asphalt mixtures: A state of the art review

Construction and Building Materials, Journal Year: 2023, Volume and Issue: 390, P. 131754 - 131754

Published: May 18, 2023

The various acknowledged benefits given by the use of fibre for construction materials made this component essential specific applications, including asphalt pavements. Fibres in mixtures usually play two important roles: acting as an stabilizer to decrease drain-down effect; and a reinforcing additive enhance mechanical performance mixtures. To better understand their use, paper aims review uses different types fibres main variables that influence effectiveness mechanism using are discussed. Furthermore, state-of-the-art combined other additives, such crumb rubber, polymer modifiers, nano-size is presented. Results from relevant studies confirmed pavements significance optimizing mixing method, size dosage achieve more suitable performance. Additionally, latest research findings experimental applications discussed, with focus on waste recycled materials. Exploring feasible alternatives natural traditional fibres, wastes, combining sustainable technologies, could maximize environmental

Language: Английский

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Upcycling face mask wastes generated during COVID-19 into value-added engineering materials: A review

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 851, P. 158396 - 158396

Published: Aug. 30, 2022

Language: Английский

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Reusing COVID-19 disposable nitrile gloves to improve the mechanical properties of expansive clay subgrade: An innovative medical waste solution

Journal of Cleaner Production, Journal Year: 2022, Volume and Issue: 375, P. 134086 - 134086

Published: Sept. 19, 2022

Language: Английский

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Property assessment of an eco-friendly mortar reinforced with recycled mask fiber derived from COVID-19 single-use face masks

Journal of Building Engineering, Journal Year: 2023, Volume and Issue: 66, P. 105885 - 105885

Published: Jan. 11, 2023

Language: Английский

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Cracking resistance of crumb rubber modified green asphalt mixtures, using calcium carbonate nanoparticles and two by-product wax-based warm mix additives

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 424, P. 135848 - 135848

Published: March 26, 2024

Language: Английский

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Mechanical upcycling of single-use face mask waste into high-performance composites: An ecofriendly approach with cost-benefit analysis

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 919, P. 170469 - 170469

Published: Feb. 2, 2024

The COVID-19 pandemic created an unprecedented demand for PPE, with single-use face masks emerging as a critical tool in containing virus transmission. However, the extensive use and improper disposal of these masks, predominantly composed non-biodegradable plastics, has exacerbated environmental challenges. This research presents innovative method mechanically upcycling PPEs used medical sectors i.e. single masks. study investigates facile approach reclamation infection-free pure polypropylene (PP) plastic from discarded (W-PP) blends it various vegetable oil percentages (5, 10 20 %), resulting versatile material suitable applications. Melt flow index, rheological behaviour, DSC FTIR were employed to investigate effect oil/radical initiator through chemical grafting on W-PP properties. results demonstrate significant enhancements tensile strength modulus when blended radical initiator. There was marked increase (33 %) strain (55 compared untreated W-PP, rendering both robust flexible. Furthermore, we this upcycled fabrication glass fibre-reinforced composites, notable impact resistance. demonstrates excellent potential applications, such sheet forming 3D printing, where non-brittleness plastics plays pivotal role manufacturing high-quality products. cost-benefit analysis underscores PPE waste sustainable solution mitigate pollution conserve valuable resources. applications span wide range industries, including automotive packaging, printing.

Language: Английский

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Recycling single use surgical face mask waste for reinforcing cement-treated/untreated dredged marine sediments: Strength, deformation and micro-mechanisms analysis

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 449, P. 138450 - 138450

Published: Oct. 1, 2024

Language: Английский

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Face masks invading protected areas: Risks and recommendations

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 847, P. 157636 - 157636

Published: July 26, 2022

Language: Английский

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Evaluation on the use of COVID-19 single-use face masks to improve the properties of hot mix asphalt

Road Materials and Pavement Design, Journal Year: 2022, Volume and Issue: 24(5), P. 1371 - 1388

Published: May 13, 2022

With the outbreak of coronavirus (COVID-19) and spread this virus, use medical equipment, like 3-layerface masks, has increased dramatically. The proliferation polymer-based face masks become an environmental problem as ittakes years to completely decompose. lack proper management collection causes pollution. Therefore,considering polymer base with aim improving asphalt mixtures, in article, mask andits different layers are added mixtures 4 weight percentages two sizes, Marshall test,Resilient modulus, Indirect tensile, Moisture damage, Rutting Fatigue test were performed on samples. experimentalresults show that addition these materials improves performance 12mm long fibersyielded better results than 8mm fibers.

Language: Английский

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Improvement of Low Plasticity Clay with Crushed Glass: A Mechanical and Microstructural Study

International Journal of Pavement Research and Technology, Journal Year: 2023, Volume and Issue: unknown

Published: June 7, 2023

Abstract Low plasticity clays are found in abundance worldwide, exerting undue stresses on civil structures, road pavements and railway infrastructure, owing to the periodic settlement caused by their low bearing capacity slight swelling potential. They often encountered as natural soil when constructing subgrade have potential compromise integrity of entire pavement system unless improved appropriately. Furthermore, accumulation vast quantities non-biodegradable glass waste is identified a challenge many countries. Considering above, this paper aims provide sustainable solution studying effect crushed (CG) at varied inclusions 0, 5, 10, 15 20% clay subgrade. The testing procedure implemented includes three distinct phases, namely, material properties, microstructural properties mechanical strength tests. property tests involved particle size distribution, X-ray fluorescence (XRF) diffraction (XRD) testing. Microstructural considered include scanning electron microscope (SEM) micro-CT (CT) testing, which enabled vital understanding how introduction affects internal structure matrix, where an increase porosity was evident upon adding CG. phase standard compaction, unconfined comprehensive (UCS), California ratio (CBR), resilient modulus swelling–shrinkage It can be concluded that introducing CG clay’s with respect UCS, CBR whilst also reducing its potential, optimum inclusion 15% best enhanced clay.

Language: Английский

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