Laboratory performance evaluation of environmentally sustainable sisal fibre reinforced bituminous mixes

Subramanian, R.; Murugasan, R.; Nagabhushana, M.N.

doi:10.1016/j.conbuildmat.2017.05.006

Cited by 19 publications

(7 citation statements)

References 13 publications

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“…Reinforcement can be defined as incorporating materials which have specific properties, within other materials that lack said properties [25]. The primary purpose of fibres as a reinforcing material, is to provide additional tensile and shear strength in the resulting mixtures and then to develop an appropriate amount of strain resistance during the rutting and fatigue process of the mixture [5].…”

Section: Cold MIX Asphalt (Cma) Reinforcementmentioning

confidence: 99%

A laboratory study of high-performance cold mix asphalt mixtures reinforced with natural and synthetic fibres

Shanbara

Ruddock

Atherton

2018

Construction and Building Materials

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This research aims to examine the impact of using natural and synthetic fibres as reinforcing materials, on the mechanical properties and water susceptibility of cold mix asphalt (CMA) including indirect tensile stiffness and resistance to rutting, cracking and moisture damage. Four different types of fibres were used: glass as a synthetic fibre, and hemp, jute and coir as natural fibres. Various samples of CMA, with and without fibres, were fabricated and tested. Traditional hot mix asphalt (HMA) was also used for comparison. The results indicate a significant improvement in the indirect tensile stiffness modulus, for all fibre-reinforced CMA mixtures, over different curing times. The improved tensile behaviour represents a substantial contribution towards slowing crack propagation in bituminous mixtures, while scanning electron microscopy analysis confirmed the fibre shape and surface roughness characteristics. The improved performance of the reinforced mixtures with both natural and synthetic fibres, facilitated a substantially lower permanent deformation than traditional hot and cold mixtures at two different temperatures (45 and 60°C). When using glass and hemp fibres as reinforcing materials, there was 2 a significant improvement in CMA in terms of water sensitivity. Resistance to surface cracking was also improved when fibres were incorporated. Based on the test results, 0.35% fibre content by mass of dry aggregate and 14mm fibre length are recommended to achieve the optimum performance output for indirect tensile stiffness.

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Section: Cold MIX Asphalt (Cma) Reinforcementmentioning

confidence: 99%

A laboratory study of high-performance cold mix asphalt mixtures reinforced with natural and synthetic fibres

Shanbara

Ruddock

Atherton

2018

Construction and Building Materials

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“…Polyurethane is one of the polymers that play an important role in our life [11][12][13]. It plays a part in many industries; from footwear to ship-building, and it can be found in a constantly increasing variety of forms [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Polyols with molecular weight (MWt) in the range of 1,000-6,000 and functionality values (the average number of -OH groups) between 1.8 and 3.0 are usually used to fabricate flexible PU foams and elastomers. High cross-linked rigid PUs are synthesized using short chain polyols (MWt < 1000) with high functionality (3)(4)(5)(6)(7)(8)(9)(10)(11)(12) [19].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Microcellular Polyurethane Sisal Biocomposites

Abdel-Hamid¹,

Al-Qabandi²,

N.A.S.

et al. 2019

Molecules

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In this study, microcellular polyurethane (PU)-natural fiber (NF) biocomposites were fabricated. Polyurethanes based on castor oil and PMDI were synthesized with varying volume ratios of sisal fiber. The effect of natural fiber treatment using water and alkaline solution (1.5% NaOH) and load effect were investigated. Biocomposites were mechanically and physically investigated using tensile, viscoelasticity, and water absorption tests. The interfacial adhesion between PU and sisal fiber was studied using SEM. Short NF loads (3%) showed a significant improvement in the mechanical properties of the PU-sisal composite such as modulus of elasticity, yield and tensile strength up to 133%, 14.35 % and 36.7% respectively. Viscoelastic measurements showed that the composites exhibit an elastic trend as the real compliance (J’) values were higher than those of the imaginary compliance (J’’). Increasing NF loads resulted in a decrease of J’. Applying variable temperatures (120–80 °C) caused an increase in the stiffness at different frequencies.

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“…Compartiendo la categoría de fibras naturales, Maharaj y colaboradores emplearon fibras de coco añadidas de manera gradual de 1% a 8% en peso del cemento asfáltico, con longitudes de 2,5; 5; 7,5 y 10 mm, logrando alcanzar una rigidez significativa y mayor elasticidad bajo porcentajes de fibra de 6% y 8% con una longitud de 2,5mm (Maharaj, Ali, Ramlochan, y Mohamed, 2019). Asimismo, Ramalingam y colaboradores estudiaron la aplicación de fibras de sisal en mezclas bituminosas, demostrando la mejora de la vida útil bajo la adición de 0,05% de fibra (en peso del agregado) con una longitud de 15 mm (Ramalingam, Murugasan, y Nagabhushana, 2017). De igual importancia, en su estudio Ferreira da Costa y colaboradores mostraron que el uso de fibras del pseudotallo de la planta de banano con un tamaño de fibra de 20 mm en mezclas asfálticas, demuestran características superiores en comparación con las mezclas sin fibras (Ferreira da Costa, Grangeiro de Barros, Lucena Lopes, y Lucena Lopes, 2020).…”

Section: Longitudes óPtimas De Las Fibras Usadas En Las Mezclas Asfál...unclassified

Uso de distintos tipos de fibras para mejorar las propiedades mecánicas de la mezcla asfáltica: Una revisión literaria

Flores

Vásquez

Sánchez

et al. 2022

Infraestructura Vial

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La demanda del uso de pavimentos flexibles va creciendo raudamente debido a su buen desempeño, pero este está siendo afectado de manera considerable debido al aumento del tráfico y las variaciones climáticas, esto trae consigo la presencia de fallas considerables en el pavimento, causando que su desempeño disminuya y, por ende, se acorte su tiempo de vida útil. Este documento tiene como objetivo realizar una revisión sistemática de los distintos tipos de fibras usados en las mezclas asfálticas para la mejora de sus propiedades mecánicas, además de estudiar los porcentajes y longitudes óptimas, las pruebas utilizadas, el desempeño de las mezclas según el tipo de betún, el tipo de mezcla asfáltica y, finalmente, se revisa la rentabilidad que proporciona el uso de fibras en las mezclas asfálticas. Se revisaron 81 artículos publicados en las bases de datos de Scopus y Ebsco, entre los años 2014 al 2021, los cuales tuvieron el mismo objetivo de estudiar las características mecánicas de las mezclas asfálticas con adición de fibras. Se concluyó que las fibras, además de mejorar las propiedades de los pavimentos flexibles, son rentablemente buenas ya que, a pesar de tener un aumento en el costo inicial, demuestran un incremento en el ciclo de vida, siendo así económicamente factibles para proyectos viales que se realicen con el uso mezclas asfálticas, además se recomendó proseguir con estudios encaminados a utilizar este tipo de mezclas asfálticas.

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Laboratory performance evaluation of environmentally sustainable sisal fibre reinforced bituminous mixes

Cited by 19 publications

References 13 publications

A laboratory study of high-performance cold mix asphalt mixtures reinforced with natural and synthetic fibres

A laboratory study of high-performance cold mix asphalt mixtures reinforced with natural and synthetic fibres

Fabrication and Characterization of Microcellular Polyurethane Sisal Biocomposites

Uso de distintos tipos de fibras para mejorar las propiedades mecánicas de la mezcla asfáltica: Una revisión literaria

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