Influence of Composition of Paving Asphalt on Viscosity, Viscosity-Temperature Susceptibility, and Durability.

Griffin, R. L.; Simpson, W. C.; Miles, T K

doi:10.1021/je60004a019

Cited by 43 publications

(10 citation statements)

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“…A proper balance in the amounts of the different chemical components is necessary to produce asphalt that is durable and resistant to detrimental physical property changes on oxidative aging (20)(21)(22)(23)(24)(25)(26)(27). Asphaltenes that are not properly dispersed by the resinous components of the maltenes (the nonasphaltene fraction of asphalt and referred to by Corbett as petrolenes), will have reduced compatibility and thus reduce asphalt durability (13,26).…”

Section: Relationships Between Asphalt Component Fractions and Asphalmentioning

confidence: 99%

“…The data in Table 3 were abstracted by the writer from data obtained by Griffin et al (22) to illustrate the effects of different types of molecular interactions on viscosity. Griffin et al separated the nonasphaltene fraction of asphalt into component fractions followed by molecular distillation of the fractions.…”

Section: Effects Of Molecular Interactions On Asphalt Flow Propertiesmentioning

confidence: 99%

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A Review of the Fundamentals of Asphalt Oxidation: Chemical, Physicochemical, Physical Property, and Durability Relationships

Petersen¹

2009

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The Transportation Research Board is one of six major divisions of the National Research Council, which serves as an independent adviser to the federal government and others on scientific and technical questions of national importance. The National Research Council is jointly administered by the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The mission of the Transportation Research Board is to provide leadership in transportation innovation and progress through research and information exchange, conducted within a setting that is objective, interdisciplinary, and multimodal. The Transportation Research Board is distributing this Circular to make the information contained herein available for use by individual practitioners in state and local transportation agencies, researchers in academic institutions, and other members of the transportation research community. The information in this Circular was taken directly from the submission of the authors.

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Section: Relationships Between Asphalt Component Fractions and Asphalmentioning

confidence: 99%

Section: Effects Of Molecular Interactions On Asphalt Flow Propertiesmentioning

confidence: 99%

A Review of the Fundamentals of Asphalt Oxidation: Chemical, Physicochemical, Physical Property, and Durability Relationships

Petersen¹

2009

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“…and resins, and the amounts and properties of each of these fractions have been presented in detail (3). Saturates from all of the molecularly distilled fractions were recombined in the proportions in which they occurred to yield a single saturate fraction.…”

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confidence: 99%

Relationship of Asphalt Properties to Chemical Constitution

Simpson¹,

Griffin²,

Miles³

1961

J. Chem. Eng. Data

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Some OF THE most important rheological properties of asphalt depend on chemical constitution. Systmatically reblending chemical type components shows the influence of composition on penetration, softening point, penetration index, viscosity, viscosity-temperature slope, shear susceptibility, and complex stress-strain modulus.A study of the constitution of asphalt in terms of distributions of molecular sizes and definite chemical classes of compounds led to the development of a group of separation procedures (6). These procedures were applied to a representative group of paving asphalts, and the individual fractions have been characterized with regard to molecular weight, hydrocarbon type composition, elemental composition, viscosity, viscosity-temperature slope, and durability(3), The Venezuelan asphalt referred to in that study is the basis for the work reported here.

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“…On the other hand, aromatic ring systems are usually polar and their molecular interactions are very strong explaining thus the loss of sufficient mobility of molecules and subsequently the relatively high viscosity of asphaltenes and aromatics. Furthermore, resins which include polar aromatics demonstrate the highest viscosity among the fractions (8). This description of polarity and the associated performance of molecules in AB has a direct link with the molecular interactions and the performance during the aging.…”

Section: Aging Of Asphalt Binder 21 Functional Groups and Fractions mentioning

confidence: 87%

Synthesis of Asphalt Binder Aging and the State of the Art of Antiaging Technologies

Apostolidis

Liu

Kasbergen

et al. 2017

Transportation Research Record: Journal of the Transportation R

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Abstract:Aging is the accumulation process of diverse detrimental changes in molecular structures with advancing age. Resistance to aging is termed durability. Complex molecular systems such as asphalt binder need to be protected against aging. In this paper, a state-ofthe-art review of anti-aging technologies used to prohibit or to rejuvenate the aged asphaltic materials is provided. The kinetics of molecular structures during aging and the group of molecules affected mainly are discussed. The latest developments on anti-oxidation and rejuvenation technologies are given as well showing the impact of anti-aging technologies for the asphalt binder. INTRODUCTIONThe transportation industry consumes approximately 32.6% of the total energy produced in the European Union and almost 28% in the United States. In parallel with the increasing cost and the strong global demand for low prices of the paving materials and operations, the rapid aging of asphalt pavements due to the aggressive environmental conditions is becoming a pragmatic concern for the whole transportation industry. Avoiding the aging of asphalt binder or preventing the undesirable effects of ultimate degradation of asphalt mixes after certain time are among the major topics in which governmental authorities and infrastructure contractors have focused. Strategies, such as preventive maintenance techniques and reconstructive treatments of asphalt pavements, have been deployed in the last years to deal with the aging phenomena of asphaltic materials. Also, the utilization of additives as the countermeasure to prohibit aging of asphaltic materials (i.e., anti-oxidants) and to restore materials' characteristics (i.e., rejuvenators) shows significant benefits in these efforts. Asphalt binder (AB) is composed of an extremely large number of different types of organic molecules ranging from paraffins to alkyl polyaromatics containing heteroatoms of nitrogen (≤ 2%), oxygen (≤ 2%), sulphur (≤ 6%) and traces of metals such as vanadium and nickel. These molecules are separated in categories based on the chemical reactivity and the polarity of organic molecules. The dispersion of polar organic molecules in a medium of less polar molecules and their interaction are highly associated with the performance-related properties of ABs and their susceptibility under oxidation. When the material is oxidized, the state of molecular dispersion within the binder alters and new polar molecules are produced.Several studies have reported on the oxidation chemistry of AB, the main factors influencing aging and how aging can be addressed using chemical additives and anti-aging technologies. In this paper, focus was given to combine information of the most valuable researches which were validated for several times for the aged ABs and the anti-aging technologies. The current and concise state-of-the-art review on aging and anti-aging is provided with highlighting the chemistry of AB and the chemical interaction of anti-aging additives on them.

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Influence of Composition of Paving Asphalt on Viscosity, Viscosity-Temperature Susceptibility, and Durability.

Cited by 43 publications

References 1 publication

A Review of the Fundamentals of Asphalt Oxidation: Chemical, Physicochemical, Physical Property, and Durability Relationships

A Review of the Fundamentals of Asphalt Oxidation: Chemical, Physicochemical, Physical Property, and Durability Relationships

Relationship of Asphalt Properties to Chemical Constitution

Synthesis of Asphalt Binder Aging and the State of the Art of Antiaging Technologies

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