Improving the aging resistance of asphalt by addition of Zinc dialkyldithiophosphate

Ouyang, Chunfa; Wang, Shifeng; Zhang, Yong; Zhang, Yinxi

doi:10.1016/j.fuel.2005.08.023

Cited by 112 publications

(49 citation statements)

References 14 publications

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“…As Fig. 7 illustrates, the increase in intensity of the band from the C O and S O for aged bitumen correlates with an increase in content of the most polar components that constitute of higher molecular size (asphaltenes) [19]. The comparing of asphaltenes content from the fraction of virgin and aged bitumen (Table 3) also showed the same results [20].…”

Section: The Chemical Testsmentioning

confidence: 55%

Investigation of the possibility of using waste cooking oil as a rejuvenating agent for aged bitumen

Zargar

Ahmadinia

Asli

et al. 2012

Journal of Hazardous Materials

291

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Section: The Chemical Testsmentioning

confidence: 55%

Investigation of the possibility of using waste cooking oil as a rejuvenating agent for aged bitumen

Zargar

Ahmadinia

Asli

et al. 2012

Journal of Hazardous Materials

291

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“…In fact, the naturally present phenols seem to regulate bitumen oxidation [26]. Among the few chemicals having a demonstrated antioxidant effect, lime [175], phenothiazine [161], amines [176] and phosphate such as zinc dialkyldithiophosphate [177] are generally mentioned.…”

Section: Effects On the Chemistrymentioning

confidence: 99%

The colloidal structure of bitumen: Consequences on the rheology and on the mechanisms of bitumen modification

Lesueur¹

2009

Advances in Colloid and Interface Science

1,300

710

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“…Others approved that zinc dialkyldithiophosphate has been made to enhance the durability of AB by retarding the oxidation through inhibition of peroxides and radical scavenging (44). In this study, lead antioxidant appears to be more effective than zinc.…”

Section: Anti-aging Technologies 31 Anti-oxidantsmentioning

confidence: 71%

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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Improving the aging resistance of asphalt by addition of Zinc dialkyldithiophosphate

Cited by 112 publications

References 14 publications

Investigation of the possibility of using waste cooking oil as a rejuvenating agent for aged bitumen

Investigation of the possibility of using waste cooking oil as a rejuvenating agent for aged bitumen

The colloidal structure of bitumen: Consequences on the rheology and on the mechanisms of bitumen modification

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

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