Thermo-mechanical behaviour of mixtures containing bio-binders

Pouget, Simon; Loup, Frédéric

doi:10.1080/14680629.2013.774758

Cited by 47 publications

(15 citation statements)

References 2 publications

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“…The phase angle master curves in Figure 3 confirm the outcome of the complex modulus master curves to explain the effects of aging on biobinder samples. Similar results were obtained by Pouget and Frederic, who deduced that, with aging, the complex modulus and viscosity of the biobinder samples increased, and thus resulted in a more elastic material (20). However, the phase angle master curves of the blended biobinder showed a similar behavior to the base binder PG 64-22, which indicated that the viscoelastic characteristics of the original binder were preserved.…”

Section: Figure 2 Complex Modulus Master Curves For Various Biobindersupporting

confidence: 90%

“…Pouget and Frederic tested mix specimens with biobinder aged over a period of time and noticed a significant increase in modulus values (20). A detailed study by Vardon et al on similar samples proved that this increase might be caused by HTL biocrude molecular weights that were significantly higher than for traditional biocrude oils (5).…”

Section: Rheological Characterization With Dynamic Shear Rheometermentioning

confidence: 95%

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Rheological and Chemical Characterization of Biobinders from Different Biomass Resources

Dhasmana

Özer

Al‐Qadi

et al. 2015

Transportation Research Record: Journal of the Transportation R

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The increasing costs and strong worldwide demand for petroleum and the adverse environmental impact of the consumption of nonrenewable energy sources have encouraged the development of alternative sources of renewable energy. One source of renewable energy can be developed in biorefineries, where biomass feedstocks can be converted to biocrude oil through thermochemical processes. Biocrude oil can replace petroleum-based transportation fuels and can be used to build and maintain transportation infrastructure, which requires an energy-intensive process that consumes natural resources, including mineral aggregates, steel, cement, and petroleum-based binder. This study aimed to characterize biocrude oil as an alternative binder material, which is referred to here as biobinder. The hydrothermal liquefaction technique was used to produce biobinder from spirulina algae (microalgae), swine manure, and nanoalgae. A chemical analysis was performed with the saturates, aromatics, resins, and asphaltenes technique to characterize the percentage of different components present in the biobinder. A rheological characterization of biobinders was conducted to evaluate their feasibility for use in pavement construction and to predict their performance during the service life of a pavement. Surface free energy properties of biobinders also were determined with the use of a sessile drop device to characterize adhesion properties. The results indicated that biobinder had significantly different rheological and chemical properties than conventional asphalt binder. When blended with conventional binder, biobinder showed the potential to reduce the stiffness of original binder. As a result, it might be used to rejuvenate mixes with recycled asphalt materials or find an application under low-temperature conditions.

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Section: Figure 2 Complex Modulus Master Curves For Various Biobindersupporting

confidence: 90%

Section: Rheological Characterization With Dynamic Shear Rheometermentioning

confidence: 95%

Rheological and Chemical Characterization of Biobinders from Different Biomass Resources

Dhasmana

Özer

Al‐Qadi

et al. 2015

Transportation Research Record: Journal of the Transportation R

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“…The lack of knowledge in this area is further substantiated by field observations of premature failures including ravelling or cracking. Therefore, issues directly related to durability such as: rheological as well as ageing behaviour of clear binders, the resistance of coloured pavements to temperature variations are of major importance (Pouget and Loup 2013).…”

Section: Introductionmentioning

confidence: 99%

Coloured Asphalt Pavements: Mix Design and Laboratory Performance Testing

et al. 2015

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Coloured asphalt pavements are increasingly used in large public areas and at dangerous intersections such as crossroads, roundabouts or pedestrian crossings. In the former application, the role of the coloured pavement is often to give the space a particular aesthetic character or to integrate it well in its surroundings; in the latter, its major role is to enhance the safety of users by improving visibility and road legibility. However, coloured pavements are also subjected to traffic and climate-induced stresses and must, therefore, exhibit a similar mechanical performance as their uncoloured counterparts. Desired colours are obtained by using specific materials such as coloured aggregates, pigments and clear binders. However, the application of latter constituents may affect the performance and durability of coloured asphalt mixtures. Therefore, in a first step, BRRC (Belgian Road Research Centre) determined the characteristics of these particular materials such as the rheological behaviour of clear binders both at high and low temperatures and the stiffening effect of pigments acting as filler. Subsequently, the impact of the material characteristics on volumetric mix design was investigated. In a next phase their effect on the mechanical performance of coloured mixtures was studied in the laboratory. The latter performance was evaluated by testing for water sensitivity, rutting resistance and low-temperature cracking. This contribution summarizes the major findings from the study.

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“…In this regard, there exist several studies using biobinders as bitumen modifiers (4)(5)(6)(7)(8) but less research can be found using them as total replacement of bituminous binders (9)(10)(11)(12).…”

Section: Introductionmentioning

confidence: 99%

Evaluación del efecto rejuvenecedor de bio-materiales sobre ligantes para mezclas con alto contenido de asfalto recuperado

et al. 2017

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ABSTRACT:The interest in using bio-materials in pavement engineering has grown significantly over the last decades due to environmental concerns about the use of non-recoverable natural resources. In this paper, biomaterials are used together with Reclaimed Asphalt (RA) to restore some of the properties of the aged bitumen present in mixtures with high RA content. For this purpose, two bio-materials are studied and compared to conventional and polymer modified bitumens. Blends of these materials with RA bitumen were produced and studied to simulate a 50% RA mixture. The rejuvenating effect of the two bio-materials on RA has been assessed and compared with the effect of the conventional binders. Apparent Molecular Weight Distribution of the samples (obtained by the δ-method) and different rheological parameters were used for this purpose. Results revealed the power of bio-materials to rejuvenate RA bitumen, showing their capability to be used as fresh binders in high-RA content mixtures. RESUMEN:Evaluación del efecto rejuvenecedor de bio-materiales sobre ligantes para mezclas con alto contenido de asfalto recuperado. El interés en la utilización de bio-materiales en ingeniería de pavimentos ha crecido significantemente en las últimas décadas debido a la conciencia ambiental sobre el uso de recursos naturales no renovables. En este artículo, se utilizan bio-materiales para recuperar las propiedades iniciales del betún envejecido presente en mezclas con alto contenido de asfalto reciclado (RA). Para ello, se ha estudiado y comparado el comportamiento de dos bio-materiales con betunes convencionales y betunes modificados con polímeros. Con este objetivo, se fabricaron mezclas de bio-materiales y betún reciclado simulando mezclas asfálticas con 50% de contenido de reciclado. El efecto rejuvenecedor de los bio-materiales se ha evaluado y comparado con el efecto rejuvenecedor de ligantes convencionales mediante el cálculo de las distribuciones de peso molecular aparente y diferentes pará-metro reológicos. Los resultados muestran el poder rejuvenecedor de los bio-materiales, poniendo de manifiesto su potencial para usarse como ligantes vírgenes en mezclas asfálticas con alto contenido de reciclado.

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Thermo-mechanical behaviour of mixtures containing bio-binders

Cited by 47 publications

References 2 publications

Rheological and Chemical Characterization of Biobinders from Different Biomass Resources

Rheological and Chemical Characterization of Biobinders from Different Biomass Resources

Coloured Asphalt Pavements: Mix Design and Laboratory Performance Testing

Evaluación del efecto rejuvenecedor de bio-materiales sobre ligantes para mezclas con alto contenido de asfalto recuperado

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