Mechanical and rheometric properties of gilsonite/carbon black/natural rubber compounds cured using conventional and efficient vulcanization systems

Vélez, Juan Sebastián; Restrepo, Sandra Milena Velásquez; Vásquez, Diego Hernán Giraldo

doi:10.1016/j.polymertesting.2016.09.005

Cited by 20 publications

(8 citation statements)

References 6 publications

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“…Vélez et al (2016) estudiaron la adición de particulas micrométricas de gilsonita reforzado con N330, comparando el efecto de sistemas de vulcanización convencionales y eficientes; encontraron que la adición de gilsonita facilitaba la incorporación de negro de carbono durante el mezclado, disminuyendo la reversión durante ensayos reomé-tricos de compuestos con sistemas de curado de vulcanización eficaces y aumentando la resistencia dieléctrica. Por otro lado, Flauzino Neto et al (2016) añadieron nanocristales de celulosa hallando un incremento de la resistencia a la deformación elástica desde 0.19 Mpa (NR) hasta 0.54 Mpa y en la dureza desde 0.59 (NR) hasta 3.03 Mpa cuando hay inclusión del 5 % de nanocristales.…”

Section: Pruebas Mecánicas a Las Láminas De Cauchounclassified

Efecto de inclusión de anticoagulantes durante el beneficio de Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg.

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Forero

2017

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Section: Pruebas Mecánicas a Las Láminas De Cauchounclassified

Efecto de inclusión de anticoagulantes durante el beneficio de Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg.

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Forero

2017

Colomb. for.

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“…It was observed that gilsonite notably increased the asphalt binder stiffness (reduces penetration, increases softening points and viscosity). This increase in stiffness was mainly due to the high content of asphaltenes in gilsonite [4,[10][11][12], as well as its lower penetration and higher viscosity and softening point compared with AC 60-70 asphalt binder.…”

Section: Modification Of Ac 60-70mentioning

confidence: 99%

“…It contains a large quantity of N, O, and S elements in which there are existing functional polar groups and a high presence of metallic elements. Upon carrying out SARA (Saturates, Aromatics, Resins, Asphaltenes)-fractions, gilsonite presents a high content of asphaltenes [4,[8][9][10][11][12]. It is a material that is highly compatible with conventional asphalt binders [13,14].…”

Section: Introduction 1gilsonite Backgroundmentioning

confidence: 99%

Mechanical Performance of Gilsonite Modified Asphalt Mixture Containing Recycled Concrete Aggregate

2021

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Hot-mix asphalts exposed to hot weather and high traffic volumes can display rutting distress. A material that can be used to increase the stiffness of asphalt binders is gilsonite. On the other hand, from an environmental point of view, the virgin natural aggregates of asphalt mixtures can be replaced with recycled concrete aggregates. For these reasons, this study modified the asphalt binder with gilsonite by wet-process to improve rutting resistance, and replaced (by mass and volume) part of the coarse fraction of the aggregate with recycled concrete aggregate in two hot-mix asphalts with different gradations. Unlike other studies, a larger experimental phase was used here. Marshall, indirect tensile strength, resilient modulus, permanent deformation, fatigue resistance, and Cantabro tests were performed. An ANOVA test was carried out. If the replacement of the virgin aggregate by recycled concrete aggregates was made by volume, both materials (gilsonite and recycled concrete aggregate) could be used in hot-mix asphalts for thick-asphalt layers in high temperature climates and any level of traffic. The use of both materials in hot-mix asphalts is not recommended for thin-asphalt layers in low temperatures climates. It is not advisable to replace the aggregates by mass.

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“…The main reason for the use of reinforcing rubber is to improve the mechanical and thermal properties as well as cheapen the final product . So far, there have been many types of fillers used in rubber composites . However, searching for the new combination of filler and rubber remains largely unexplored…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of epoxidized natural rubber through the addition of sepiolite

Hayeemasae

Ismail

2018

Polymer Composites

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Sepiolite reinforced epoxidized natural rubber (ENR) composites were prepared by incorporation different loadings of sepiolite. Curing characteristics, mechanical properties, morphology and thermal stability of sepiolite-filled ENR composites were studied. Adding sepiolite into ENR has resulted in remarkable improvement of curing characteristics, mechanical properties and thermal stability. This is attributed to the unique structure of sepiolite itself. It gives a greater interaction between hydroxyl and/or siloxane groups of sepiolite and epoxide segment of ENR. The mechanical properties are very good agreement to the SEM micrographs where more surface roughness is observed upon the addition of sepiolite. Further evidence was found for the thermal decomposition temperature of the composites. The obtained thermogravimetric profiles indicate that their thermal stability was clearly enhanced irrespective of sepiolite loadings. POLYM.

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Mechanical and rheometric properties of gilsonite/carbon black/natural rubber compounds cured using conventional and efficient vulcanization systems

Cited by 20 publications

References 6 publications

Efecto de inclusión de anticoagulantes durante el beneficio de Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg.

Efecto de inclusión de anticoagulantes durante el beneficio de Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg.

Mechanical Performance of Gilsonite Modified Asphalt Mixture Containing Recycled Concrete Aggregate

Reinforcement of epoxidized natural rubber through the addition of sepiolite

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