Influence of Carbon Nanoparticles on the Rheological Characteristics of Short-Term Aged Asphalt Binders

2011 ◽  
Vol 23 (4) ◽  
pp. 423-431 ◽  
Author(s):  
Feipeng Xiao ◽  
Armen N. Amirkhanian ◽  
Serji N. Amirkhanian
Keyword(s):  
Carbon Nanoparticles ◽  
Asphalt Binders ◽  
Rheological Characteristics ◽  
Short Term ◽  
Aged Asphalt

The Effect of Short-Term Aging on Rheological Properties of Asphalts

2011 ◽  
Vol 255-260 ◽  
pp. 3321-3325
Author(s):  
Li Xing Ma ◽  
Jun Feng Huang ◽  
Zhi Da Li
Keyword(s):  
Rheological Properties ◽  
Softening Point ◽  
Dynamic Testing ◽  
Complex Modulus ◽  
Viscoelastic Behavior ◽  
Asphalt Binders ◽  
Rheological Characteristics ◽  
Short Term ◽  
Conventional Tests ◽  
Temperature Susceptibility

The effect of short-term aging on rheological properties of asphalts was studied. In this paper, asphalt was aged by rolling thin film oven, which was carried out for 300 minutes and were analyzed at an interval of 75 minutes. The paper gives a description of the most commonly used conventional tests, such as Penetration and Softening Point, and a more detailed description of the viscoelastic behavior and dynamic testing of asphalts by way of Brookfield viscometer and Dynamic Shear Rheometer (DSR). It is found that there are a decrease in penetration and an increase in softening point with aging. The viscosity of aged asphalts was observed to increase with time. The DSR results show that short-term aging significantly increases the complex modulus at low temperature, but complex modulus at high temperature was just lightly affected. The four tests results were also incorporated to evaluate the temperature susceptibility and the rheological characteristics of asphalt binders.

Rejuvenation of short-term aged asphalt-binder using waste engine oil

2020 ◽  
Vol 47 (7) ◽  
pp. 822-832 ◽  
Author(s):  
Tao Bai ◽  
Zi-ang Hu ◽  
Xiaodi Hu ◽  
Yang Liu ◽  
Luis Fuentes ◽  
...  
Keyword(s):  
Asphalt Binder ◽  
Engine Oil ◽  
Morphological Properties ◽  
Asphalt Binders ◽  
Test Results ◽  
Short Term ◽  
Waste Engine Oil ◽  
Laboratory Test Results ◽  
Aged Asphalt ◽  
Significant Milestone

The work presented in this paper aims to improve the rheological properties and ductility characteristics of aged (short-term) asphalt-binder using waste engine oil (WEO). The WEO was injected into the aged asphalt-binder as three rejuvenators, namely A, B, and C — with Rejuvenator A being the treated WEO only. Rejuvenator B consists of treated WEO and furfural extraction oil. Rejuvenator C consists of Rejuvenator B composition plus epoxy resin. The asphalt-binder physical, ductility, rheological, and morphological properties were measured using the standard penetration, softening point, ductility, dynamic shear rheometer, bending beam rheometer, and Fourier transform infrared spectroscopy tests, respectively. Overall, the laboratory test results, with Rejuvenator C exhibiting superiority, indicated that, if properly preprocessed and treated with additive modifications, WEO can be beneficially used to rejuvenate short-term aged asphalt-binders, which can be a significant milestone towards “green” asphalt and environmental conservatism.

scholarly journals Changes in Nanoscaled Mechanical and Rheological Properties of Asphalt Binders Caused by Aging

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Ben Liu ◽  
Junan Shen ◽  
Xuyan Song
Keyword(s):  
Thin Film ◽  
Atomic Force Microscope ◽  
Rheological Properties ◽  
Asphalt Binder ◽  
Adhesive Force ◽  
Asphalt Binders ◽  
Dynamic Shear ◽  
Short Term ◽  
Atomic Force ◽  
Aged Asphalt

Aging of an asphalt binder causes the changes in the microstructure and, consequently, in the nanomechanical and rheological properties of the aged asphalt binder. Short-term aging on asphalt binders was simulated using rotating thin film oven (RTFO). These changes in the microstructure and nanomechanical and rheological properties were measured using atomic force microscope (AFM) and dynamic shear rheometer (DSR). The results indicated that (1) the adhesive force of the asphalt binder from AFM tests was increased after RTFO aging; (2)G*of the asphalt binder from DSR tests increased after RTFO aging; (3) the results from AFM were consistent with those from DSR, explaining the mechanism of the changes of rheological properties.

Evaluation of Age-Hardening on Long-Term Aged Asphalt Binders

2021 ◽  
Vol 304 ◽  
pp. 124687
Author(s):  
Yanlong Liang ◽  
John T. Harvey ◽  
David Jones ◽  
Rongzong Wu
Keyword(s):  
Age Hardening ◽  
Asphalt Binders ◽  
Aged Asphalt

Connections between the Rheological and Chemical Properties of Long-Term Aged Asphalt Binders

2015 ◽  
Vol 27 (9) ◽  
pp. 04014248 ◽  
Author(s):  
Yuhong Wang ◽  
Yong Wen ◽  
Kecheng Zhao ◽  
Dan Chong ◽  
Jianming Wei
Keyword(s):  
Chemical Properties ◽  
Asphalt Binders ◽  
Aged Asphalt ◽  
And Chemical Properties

scholarly journals Effects of WMA Additive on the Rheological Properties of Asphalt Binder and High Temperature Performance Grade

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Jiupeng Zhang ◽  
Guoqiang Liu ◽  
Li Xu ◽  
Jianzhong Pei
Keyword(s):  
Critical Temperature ◽  
Rheological Properties ◽  
Asphalt Binder ◽  
Aging Effect ◽  
Asphalt Binders ◽  
Short Term ◽  
Performance Grade ◽  
Temperature Performance ◽  
Effects Of Temperature ◽  
Increasing Temperature

Sasobit additives with different dosages were added into 70# and 90# virgin asphalt binders to prepare WMA binders. The rheological properties, includingG∗andδ, were measured by using DSR at the temperature ranging from 46°C to 70°C, and the effects of temperature, additive dosage and aging onG∗/sin⁡δ, critical temperature, and H-T PG were investigated. The results indicate that WMA additive improvesG∗but reducesδ, and the improvement on 70# virgin binder is more significant.G∗/sin⁡δexponentially decreases with the increasing temperature but linearly increases with the increasing additive dosage. Aging effect weakens the interaction between binder and additive but significantly increases the binder’s viscosity; that is whyG∗/sin⁡δis higher after short-term aging. In addition, the critical temperature increases with the increasing additive dosage, and the additive dosage should be more than 3% and 5% to improve H-T PG by one grade for 70# and 90# virgin binder, respectively.

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