Optimization of asphalt and modifier contents for polyethylene terephthalate modified asphalt mixtures using response surface methodology

Moghaddam, Taher Baghaee; Soltani, Mojtaba; Karim, Mohamed Rehan; Baaj, Hassan

doi:10.1016/j.measurement.2015.07.012

Cited by 80 publications

(15 citation statements)

References 47 publications

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“…Finally, it is worth noting that one of the most common PE wastes is made from polyethylene terephthalate (PET), which is among the main types of plastics that can be found in municipal waste. However, this is not suitable to produce RPMB due to its high melting point, which is around 250 • C [12,36,37]. For this reason, when the use of PET has been found in the literature it is usually linked to the dry process [12,36,38], being employed as fiber reinforcement in mixtures rather than as a binder modifier.…”

Section: Polyethylene (Pe)mentioning

confidence: 99%

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

et al. 2019

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The use of polymer-modified binders in asphalt mixtures has become more widespread due to their reduced thermal susceptibility and improved rutting and fatigue resistance. Nevertheless, their high cost limits their application, thus making the use of reclaimed polymers (RP) an interesting alternative for both reducing price and extending the service life of pavements. This paper; therefore, presents a comparative review of the recycled polymers most commonly studied as bitumen modifiers: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), ethyl vinyl acetate (EVA), and ground tire rubber (GTR), in order to facilitate their selection and extend the use of the bitumen. The differences in terms of melting point, mixing conditions, and maximum quantity of added polymer are analyzed. Moreover, their effect on the mechanical behavior of the asphalt binders and their stability with and without the use of additives is presented. According to the literature revision, the performance of the new binder is more influenced by the kind of polymer that was incorporated and the mixing conditions than by the base bitumen that was chosen, although rheological evaluation is needed to fully understand the modification mechanisms of the modified binder. In general terms, plastomers have a stronger effect in terms of increasing the stiffness of the bitumen in comparison with crumb rubber (elastomers), thus providing an improved rutting resistance. The joint use of polyethylene (plastomer) and crumb rubber (elastomer) can be an interesting option for its recycling potential and mechanical performance, although further study is needed to achieve stable bitumen across the entire range of temperatures; additives, such as maleic anhydride (MA), are commonly employed to improve the stability of the binder and enhance its characteristics, but their use could limit the economic benefits of using recycled materials.

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Section: Polyethylene (Pe)mentioning

confidence: 99%

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

et al. 2019

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“…RSM involves the optimisation of parameters using experimental results in order to understand the interactions between the parameters and reduce the number of runs required in experiments (24)(25)(26)(27). Hence, it has been used for many applications in civil engineering to evaluate the optimisation of mix proportions in concrete and pavement design (12,28,29). RSM has become more popular in recent years (9,10,12,(28)(29)(30).…”

Section: Response Surface Methodology (Rsm)mentioning

confidence: 99%

“…Hence, it has been used for many applications in civil engineering to evaluate the optimisation of mix proportions in concrete and pavement design (12,28,29). RSM has become more popular in recent years (9,10,12,(28)(29)(30). Accordingly, Design-Expert version 10.0 was used in this study to determine the optimum equations for the responses of the concrete through experimental and statistical analyses.…”

Section: Response Surface Methodology (Rsm)mentioning

confidence: 99%

Predicting the Mechanical Properties of Concrete Using Intelligent Techniques to Reduce CO<sub>2</sub> Emissions

et al. 2019

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The contribution to global CO 2 emissions from concrete production is increasing. In this paper, the effect of concrete mix constituents on the properties of concrete and CO 2 emissions was investigated. The tested materials used 47 mixtures, consisting of ordinary Portland cement (OPC) type I, coarse aggregate, river sand and chemical admixtures. Response surface methodology (RSM) and particle swarm optimisation (PSO) algorithms were employed to evaluate the mix constituents at different levels simultaneously. Quadratic and line models were produced to fit the experimental results. Based on these models, the concrete mixture necessary to achieve optimum engineering properties was found using RSM and PSO. The resulting mixture required to obtain the desired mechanical properties for concrete was 1.10-2.00 fine aggregate/cement, 1.90-2.90 coarse aggregate/cement, 0.30-0.4 water/cement, and 0.01-0.013 chemical admixtures/cement. Both methods had over 94% accuracy, compared to the experimental results. Finally, by employing RSM and PSO methods, the number of experimental mixtures tested could be reduced, saving time and money, as well as decreasing CO 2 emissions. KEYWORDS: CO 2 emission; Mechanical properties of concrete; Optimum mix design; Particle swarm optimisation; Response surface method. Citation/Citar como: Ghayeb, H.H.; Razak, H.A.; Sulong, N.H.R.; Hanoon, A.M.; Abutaha, F.; Ibrahim, H.A.; Gordan, M.; Alnahal, M.F. (2019) Predicting the mechanical properties of concrete using intelligent techniques to reduce CO 2 emissions. Mater. Construcc. 69 [334], e190 https://doi.org/10.3989/mc.2019.07018 RESUMEN:Predicción de las propiedades mecánicas de un hormigón utilizando técnicas inteligentes para reducir las emisiones de CO 2 . La contribución a las emisiones globales de CO 2 debidas a la producción de hormigón está aumentando. En este trabajo, se investigó el efecto de los componentes de la mezcla de hormigón en las propiedades del mismo y las emisiones de CO 2 . Los materiales estudiados fueron 47 mezclas, que consistieron en cemento Portland ordinario (OPC) tipo I, árido grueso, arena de río y aditivos químicos. Se utilizaron algoritmos de metodología de respuesta de superficie (RSM) y optimización de nube de partículas (PSO) para evaluar los componentes de la mezcla a diferentes niveles simultáneamente. Se elaboraron modelos cuadráticos y lineales para ajustar los resultados experimentales. Basándose en estos modelos, utilizando RSM y PSO, la mezcla de hormigón logró propiedades óptimas de ingeniería. La mezcla resultante requerida para obtener las propiedades mecánicas deseadas para el hormigón fue de 1.10-2.00 árido fino / cemento, 1.90-2.90 árido grueso / cemento, 0.30-0.4 agua / cemento y 0.01-0.013 aditivos químicos / cemento. Ambos métodos tuvieron más del 94% de precisión, en comparación con los resultados experimentales. Finalmente, al emplear los métodos RSM y PSO, el número de mezclas experimentales probadas podría reducirse, ahorrando tiempo y dinero, así como disminuyendo las emisiones de CO 2 ...

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“…All publications in the yellow cluster were affiliated with a Malaysian university, while the ones from the dark blue cluster were affiliated with an American university. Karim, M. R. was the most productive author with eight publications [27][28][29]33,[41][42][43][44] and over 600 citations (yellow cluster), followed by Moghaddam, T. B. [27][28][29]33,41,42] (yellow cluster) and Fini, E. H. [31,32,[45][46][47][48] (dark blue cluster) with six publications each.…”

Section: Co-authorship Cluster Analysismentioning

confidence: 99%

Waste Plastic in Asphalt Mixtures via the Dry Method: A Bibliometric Analysis

Bueno,

Teixeira

2024

Sustainability

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Although waste plastic (WP) application as a paving material has drawn increasing attention from scholars, there is a lack of studies that summarize the latest development of WP research. Considering there is no standard procedure to incorporate WPs in asphalt mixtures, it is important to document the major findings from the available literature to identify knowledge gaps to tackle in future research and advance knowledge on this subject. Using a bibliometric analysis method, this study carries out a holistic review of WP articles published from 2003 to 2023, focusing on incorporating WP in asphalt mixtures via the dry method. This study particularly focused on identifying and evaluating individual types of WP mostly used in asphalt mixtures via the dry method and how their most common characteristics (size, shape, and melting point) affect the mixing procedure and the overall mixture’s performance. The analysis highlighted China, the USA, and India as leading countries in WP-related publications. Typically, low-density polyethylene (LDPE), high-density polyethylene (HDPE), and polyethylene terephthalate (PET) were the most utilized WPs in the dry method. Smaller WP particle sizes (<2.36 mm) were considered more suitable in asphalt mixtures. In general, studies employing procedures involving WP melting, typically by introducing WP to pre-heated aggregates at temperatures surpassing its melting point, resulted in improved asphalt mixtures with enhanced resistance to rutting, cracking, and moisture damage. In this context, positive performance outcomes were notably observed in studies using HDPE or LDPE, potentially because of their low melting point. The key knowledge gaps identified were the lack of a consistent procedure applicable across studies, a feasibility assessment for scaling laboratory-based procedures to field applications, and laboratory evaluations utilizing advanced performance tests as suggested in the Balance Mix Design (BMD) approaches.

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Optimization of asphalt and modifier contents for polyethylene terephthalate modified asphalt mixtures using response surface methodology

Cited by 80 publications

References 47 publications

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

Predicting the Mechanical Properties of Concrete Using Intelligent Techniques to Reduce CO<sub>2</sub> Emissions

Waste Plastic in Asphalt Mixtures via the Dry Method: A Bibliometric Analysis

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