Use of Micronized Polyethylene Terephthalate (Pet) Waste in Asphalt Binder

Silva, J. de Arimateia Almeida e; Lucena, Lêda Christiane de Figueiredo Lopes; Rodrigues, John Kennedy Guedes; Carvalho, Maria Wilma de; Costa, Daniel Beserra

doi:10.1080/10916466.2015.1079538

Cited by 24 publications

(7 citation statements)

References 4 publications

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“…The results showed that the addition of PET and fractionated PET at 2% elevated the high critical temperature from 69 °C to 71.7 and 71.8 °C, respectively, signifying a notable enhancement in the performance grade (PG) of the asphalt binder, progressing from PG 64 to PG 70 after the modification with PET particles. The improved high-temperature performance could be attributed to the rising softening point of asphalt binders with PET polymer addition [ 60 ].…”

Section: Resultsmentioning

confidence: 99%

A Multi-Streamline Approach for Upcycling PET into a Biodiesel and Asphalt Modifier

Chen,

Mraiza,

et al. 2024

Polymers

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The non-degradable nature of petroleum-based plastics and the dependence on petroleum-based products in daily life and production are dilemmas of human development today. We hereby developed a plastic waste upcycling process to address these challenges. A multi-stream fraction strategy was developed to process poly (ethylene terephthalate) (PET) plastics into soluble and insoluble fractions. The soluble fraction was used as a sole carbon source for microbial fermentation to produce biodiesel precursor lipids with an appreciable bioconversion yield. The insoluble fraction containing fractionated polymers was used as the asphalt binder modifiers. The downsized PET additive improved the high-temperature performance of the asphalt binder by 1 performance grade (PG) without decreasing the low-temperature PG. Subsequent SEM imaging unveiled alterations in the micromorphology induced by PET incorporation. Further FTIR and 1H NMR analysis highlighted the aromatic groups of PET polymers as a crucial factor influencing performance enhancement. The results demonstrated the multi-stream fraction as a promising approach for repurposing plastic waste to produce biodiesel and modify asphalt. This approach holds the potential to tackle challenges in fuel supply and enhance infrastructure resilience to global warming.

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Section: Resultsmentioning

confidence: 99%

A Multi-Streamline Approach for Upcycling PET into a Biodiesel and Asphalt Modifier

Chen,

Mraiza,

et al. 2024

Polymers

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“…Te penetration and ductility of the bitumen modifed with recycled plastic polymer chips decrease as the content of the plastic additives increases. Tis contributes to the expected substantial increase in life of pavement surfacing in comparison to using ordinary bitumen [31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Combined Performance of Polyethylene Terephthalate Waste Plastic Polymer and Crumb Rubber in Modifying Properties of Hot Mix Asphalt

Alemu

Melese

Mahdi

et al. 2023

Advances in Materials Science and Engineering

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Nowadays, the use of recycled waste materials in road pavement is regarded not only as a positive option in terms of sustainability but also as an appealing option in terms of providing improved service performance. The current study aimed at evaluating the performance of crumb rubber and polyethylene terephthalate plastic polymer in asphalt mixture in modifying the mechanical properties of asphalt pavement. Experimental tests were carried out both for asphalt binder and asphalt mixture. Different proportions of mix for crumb rubber and polyethylene terephthalate plastic polymer were used to systematically investigate the effect of mix ratio on performance of the asphalt material. The experimental analysis reveals that the combined application of 10% by weight of crumb rubber chips and 2% polyethylene terephthalate plastic polymer are the ideal mix ratios found effective in modifying properties of the asphalt mixture. The asphalt binder test results indicate that adding 10% crumb rubber to asphalt binder reduced penetration by 1.56% along with increment of the softening point by 4.33%. Furthermore, the indicated optimum mix amount resulted in 0.17% rise, 20.07% drop, and 20.71% increase in Marshal stability, flow, and stiffness, respectively. Besides, tensile strength of the asphalt mixture was enhanced with addition of the filler and binder materials. It was witnessed that the combined application of the additives performs better than their separate use in modifying properties of the asphalt mix.

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“…Today, PET has many practical applications, including its use for bottles, fibres, and storage boxes [13,16]. According to results obtained in studies in which PET was used in bitumen modification, the penetration values of binders with PET additive decreased, the softening point value increased, and the rheological properties improved [17][18][19][20][21]. In the studies where PET was used for hot mix asphalt (HMA) pavements, it was observed that the fatigue properties of pavement improved [22,23], the stability value increased [20,21,24], and the resistance to permanent deformations improved [14], all thanks to the use of PET additive.…”

Section: Introductionmentioning

confidence: 99%

Effects of recycled PET and TEOA on performance characteristics of bitumen

2022

JCE

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In this study, the recycled PET is used in bitumen modification by applying a different process in order to eliminate the phase separation problem. For this purpose, modified bitumens are obtained by adding the triethanolamine (TEOA) chemical (wt. 2.5 %) and PET (wt. 2, 4, 6, 8, 10 %) to pure bitumen. The properties of modified bitumens are determined by chemical, physical, and rheological tests. According to the test results, bitumen reacts with PET, and 6 % PET ratio is a critical value. At this ratio, the resistance of bitumen to deformations at high and low temperatures increases significantly.

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Use of Micronized Polyethylene Terephthalate (Pet) Waste in Asphalt Binder

Cited by 24 publications

References 4 publications

A Multi-Streamline Approach for Upcycling PET into a Biodiesel and Asphalt Modifier

A Multi-Streamline Approach for Upcycling PET into a Biodiesel and Asphalt Modifier

Combined Performance of Polyethylene Terephthalate Waste Plastic Polymer and Crumb Rubber in Modifying Properties of Hot Mix Asphalt

Effects of recycled PET and TEOA on performance characteristics of bitumen

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