Using Cereclor plasticizer to modify the virgin asphalt binder: A case of rheological properties improvement

2022 ◽  
Vol 318 ◽  
pp. 126039
Author(s):  
Chen Li ◽  
Feng Ma ◽  
Zhen Fu ◽  
Jiasheng Dai ◽  
Yalu Wen ◽  
...  
2015 ◽  
Vol 27 (3) ◽  
pp. 04014135 ◽  
Author(s):  
Ali Jamshidi ◽  
Meor Othman Hamzah ◽  
Zulkurnain Shahadan ◽  
Ahmad Shukri Yahaya

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Jiupeng Zhang ◽  
Guoqiang Liu ◽  
Li Xu ◽  
Jianzhong Pei

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.


2018 ◽  
Vol 45 (5) ◽  
pp. 407-412
Author(s):  
Debaroti Ghosh ◽  
Mugurel Turos ◽  
Ed Johnson ◽  
Mihai Marasteanu

Pavement preservation is playing an increasingly significant role in maintaining our aged pavement infrastructure under severe budget constraints. One important component is the use of surface treatments based on application of sealants. Recently, a number of new products, called bio sealants, have been used to treat aging pavement surfaces. The objective of this study is to investigate rheological properties of the binders treated with these materials to understand the mechanism by which they may improve pavement performance. One plain asphalt binder and four types of sealants, two oil-based sealants, one water-based sealant, and one traditional emulsion were used in the experimental work. The results obtained using a dynamic shear rheometer and a bending beam rheometer were used to determine the changes in rheological properties and the change in performance grade. It was observed that the oil-based sealants have a significant softening effect of the control binder compared to the water-based sealants. The transverse cracking histories from field investigation were used to verify the laboratory findings.


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