Rheological characterization of asphalt binders treated with bio sealants for pavement preservation

Ghosh, Debaroti; Turos, Mugurel; Johnson, Eddie N; Marasteanu, Mihai

doi:10.1139/cjce-2017-0058

Cited by 8 publications

(4 citation statements)

References 8 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other important parameter is the tan, obtained by the ratio of G" and G'. As displayed in Figure 3, the tan  values were < 1 until the c, confirming the elastic behavior for the P. pubescens NE (Syahariza & Yong, 2017;Ghosh et al, 2018).…”

Section: Oscillatory Rheological Measurementssupporting

confidence: 72%

Rheological behavior and antiarthritic activity of Pterodon pubescens nanoemulsion

Góes

Hoscheid

Silva-Filho

et al. 2020

RSD

View full text Add to dashboard Cite

Pterodon pubescens, popularly known as "sucupira", it is traditionally used as anti-inflammatory agent. This work aimed to evaluate the in vivo antiarthritic properties of a P. pubescens oil nanoemulsion and the rheological behavior of the developed system. The viscoelastic properties, creep and recovery were evaluated by dynamic oscillatory tests. The antiarthritic activity of the nanoemulsion was evaluated by the zymozan-induced arthritis model, at three different doses (25, 50 and 125 mg/kg/day). P. pubescens oil nanoemulsion has been shown to decrease cell recruitment to a joint cavity and increased cartilaginous regeneration at the end of treatment of the dose of 50 mg/kg. The evaluation of the behaviour of deformation allowed to observe that the P. pubescens nanoemulsion presents predominantly elastic characteristic. These findings demonstrate the potential of P. pubescens and nanotechnology in the development of new antiarthritic drugs.

show abstract

Section: Oscillatory Rheological Measurementssupporting

confidence: 72%

Rheological behavior and antiarthritic activity of Pterodon pubescens nanoemulsion

Góes

Hoscheid

Silva-Filho

et al. 2020

RSD

View full text Add to dashboard Cite

show abstract

“…Also, the rejuvenating ability of emulsion type additives is well known in which emulsion rejuvenators can affect the change in stiffness of the aged AB sufficiently (81,82). However, a comparative study showed that the restoring impact of these, such as the polymerized maltene-based emulsion composed of petroleum resin oil base, is lower than organic rejuvenators (83) or even the same (84).…”

Section: Petroleum Type Rejuvenatorsmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

“…There are plenty of studies about the effect of rejuvenators on binder rheology. Rejuvenators soften the aged bitumen causing the increase of penetration, ductility, phase angle and colloidal instability index, and decrease of viscosity and complex modulus [3,4,[12][13][14][15][16][17][18]. Meanwhile, recent investigations have shown a close relationship of microstructure with chemical composition and rheological properties of bitumen [19][20][21][22][23], assisting on understanding the rejuvenation mechanism.…”

Section: Introductionmentioning

confidence: 99%

ESEM observation and rheological analysis of rejuvenated SBS modified bitumen

et al. 2021

View full text Add to dashboard Cite

Observing the microstructure of bituminous binders with an environmental scanning electron microscope (ESEM) can contribute significantly to reveal the underlying rejuvenation mechanism. In this study, three rejuvenators were selected to regenerate the aged SBS modified binders at five dosages, and their rheology was evaluated using a dynamic shear rheometer. ESEM was employed to examine the microstructure of binders as well, and a series of microstructure parameters were quantified with image analysis. The results demonstrated that the chemical composition changes correspond to the evolution of microstructure morphological and rheological properties. Moreover, the rheological and microstructure characteristics were analyzed with Principal Component Analysis (PCA) and regression analysis. Based on PCA results, the microstructure of rejuvenated binders has shown a good correlation with stiffness after combining various principal components. According to regression analysis, the distance between adjacent fibrils exhibited a significant correlation with J nr3.2 and the complex modulus index. Overall, the results of this study strengthen the hypothesis that the ESEM microstructure is intimately correlated with chemical composition and rheological properties, rather than with irrelevant surface phenomena. Bitumen, polymer modified bitumen, rejuvenator, microstructure, rheology, environmental scanning electron microscopy.

show abstract

Rheological characterization of asphalt binders treated with bio sealants for pavement preservation

Abstract: Pavement preservation is playing an increasingly significant role in 1 maintaining our aged pavement infrastructure under severe budget constraints. One 2 important component is the use of surface treatments based on application of sealants.

Cited by 8 publications

References 8 publications

Rheological behavior and antiarthritic activity of Pterodon pubescens nanoemulsion

Rheological behavior and antiarthritic activity of Pterodon pubescens nanoemulsion

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

ESEM observation and rheological analysis of rejuvenated SBS modified bitumen

Contact Info

Product

Resources

About