Anisotropy and bond behaviour of recycled Polyethylene terephthalate (PET) fibre as concrete reinforcement

Luna, Alejandro Meza de; Shaikh, Faiz

doi:10.1016/j.conbuildmat.2020.120331

Cited by 28 publications

(15 citation statements)

References 36 publications

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“…On the other hand, the effect of the fibre dose and aspect ratio on the workability is scarce, with a maximum difference of 7.6%. Highlighting that the batches with the highest recycled PET fibre dose and aspect ratio demonstrated the best slump, a phenomenon attributed to the low rigidity of the recycled PET fibres [36].…”

Section: Slumpmentioning

confidence: 98%

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: Slumpmentioning

confidence: 98%

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

et al. 2021

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“…Many investigations have been conducted on this topic. The results of the experiments showed that the incorporation of PET as a fiber, bond, or aggregate could have a significant influence DOI: 10.2478/sspjce-2022-0002 on cementitious materials' properties, mechanical strength, deformability, and durability [1][2][3][4][5][6][7][8][9]. According to Hacini et al [1], the use of PET aggregates as a replacement for natural sand allows reducing the density of reinforced mortars.…”

Section: Introductionmentioning

confidence: 99%

“…Umasabor et al [2] investigated the effects of using PET as an additive on the mechanical strength of concrete and reported that there was a progressive decrease in the flexural strength of the concrete as the PET content increased in the concrete. Martinez-Barrera et al [3], Meza de Luna et al [4], and Kutum et al [5] concluded that the size and concentration of PET flakes had a significant impact on the compressive strength of concrete. The results obtained by Singh et al [6] showed that the addition of PET waste to concrete as a fine aggregate replacement increased the mechanical strength of the concrete.…”

Section: Introductionmentioning

confidence: 99%

Physical-mechanical Evaluation of Polyethylene Terephthalate Fiber Dune Sand Mortar Exposed to Elevated Temperature

Ghrieb

Abadou

Choungara

et al. 2022

Selected Scientific Papers - Journal of Civil Engineering

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The mechanical properties of mortar containing Polyethylene Terephthalate (PET) as Strapping Band Fibers (SBF) replacing natural sand have been studied by many researchers. These studies indicate that when SBF is used as a substitute for sand in mortar, the characteristics in both the fresh and hardened states are altered. This experiment’s purpose is to valorize local materials, which are abundant in the region of Djelfa (Algeria), in cement mortar manufacturing and to discuss the influence of these materials on the mechanical and physical characteristics of the resulting mortar at the room, and at the high temperature. This study presents the results of an experimental investigation into the effects of high temperatures on the properties of dune sand mortar made with strapping band fibers. The method for formulating the mortar mixes was based on the progressive replacement of dune sand by PET fibers, with weight contents of 0%, 0.5%, 1%, 1.5%, 2%, and 2.5%. Several tests have been carried out to study the evolution of the different characteristics of mortar mixtures. The workability, bulk density, compressive and tensile strengths, and all samples were subjected to temperatures of ambient, 100 °C, 200 °C, and 400 °C. The results demonstrate that the inclusion of the recycled fibers and the preservation mode had remarkable effects on the characteristics of the mortar obtained.

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“…El uso de diferentes fibras de refuerzo, como fibras de acero, poliméricas, entre otras, sirve para mejorar la resistencia a la tracción, a la flexión, la ductilidad del concreto y materiales a base de cemento; además, es una práctica común en el ámbito de la construcción. Una solución al problema de la contaminación por plásticos consiste en reciclar elementos de PET como fibra para reforzar el concreto [4].…”

Section: Introductionunclassified

Uso de los agregados PET en la elaboración del concreto: Revisión de la literatura

Rodriguez

Zamora²,

Pérez

2021

Avances

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El impacto socioambiental que provoca la generación impulsiva de residuos orgánicos e inorgánicos sin destino final adecuado es alarmante en la actualidad. Por lo anterior, se propone un uso más técnico de las fibras polietileno tereftalato (PET) en la construcción. Este artículo tuvo como objetivos revisar la literatura de 50 artículos científicos de diversas revistas y analizar los diferentes efectos en las propiedades del concreto por la incorporación de agregados PET. La metodología corresponde a la búsqueda, selección y análisis de diferentes estudios. La revisión permitió observar mejores resultados con respecto al rendimiento de flexión posterior al agrietamiento y su ductilidad que mejoran debido al uso de fibra de PET. Por otra parte, los valores de resistencia a compresión axial y a tracción por compresión diametral del compuesto se ven disminuidos cuando se incorpora mayor porcentaje de fibras PET. Estas últimas llegan a ser un gran aliado en la reducción de fisuras, la deflexión de elementos estructurales, la resistencia a la abrasión del concreto; aumentó con el incremento de residuos de PET como remplazo, de agregado grueso; en el ensayo de resistencia al desgaste por abrasión disminuyó en 0,42 mm a 0,23 mm. Así, se demuestra que las fibras PET constituyen una alternativa sostenible como agregado que dan beneficios en las diferentes propiedades del concreto, pero no se debe incorporar una cantidad mayor al 5 % del volumen total, ya que no existiría ningún beneficio a la mezcla endurecida.

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Anisotropy and bond behaviour of recycled Polyethylene terephthalate (PET) fibre as concrete reinforcement

Cited by 28 publications

References 36 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

Physical-mechanical Evaluation of Polyethylene Terephthalate Fiber Dune Sand Mortar Exposed to Elevated Temperature

Uso de los agregados PET en la elaboración del concreto: Revisión de la literatura

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