Evaluation of the performance and temperature susceptibility of gilsonite- and SBS-modified asphalt binders

2019 ◽  
Vol 207 ◽  
pp. 679-692 ◽  
Author(s):  
Danial Mirzaiyan ◽  
Mahmoud Ameri ◽  
Amir Amini ◽  
Mohammadreza Sabouri ◽  
Amirhossein Norouzi
Keyword(s):  
Asphalt Binders ◽  
Modified Asphalt ◽  
Sbs Modified Asphalt ◽  
Temperature Susceptibility

scholarly journals Evaluating the Rheological, Chemical and Morphological Properties of SBS Modified Asphalt-Binder under Multiple Aging and Rejuvenation Cycles

2021 ◽  
Vol 11 (19) ◽  
pp. 9242
Author(s):  
Xiaobing Chen ◽  
Yunfeng Ning ◽  
Yongming Gu ◽  
Ronglong Zhao ◽  
Jinhu Tong ◽  
...  
Keyword(s):  
Asphalt Binder ◽  
Morphological Properties ◽  
Asphalt Binders ◽  
Laboratory Simulation ◽  
Fatigue Properties ◽  
Type I ◽  
Modified Asphalt ◽  
Modified Asphalt Binder ◽  
Microscopic Morphology ◽  
Sbs Modified Asphalt

To investigate the influence of multiple cycles of aging and rejuvenation on the rheological, chemical, and morphological properties of styrene–butadiene–styrene (SBS)-modified asphalt-binders, the asphalt-binders were aged using two laboratory simulation methods, namely a rolling thin film oven (RTFO) test for short-term aging and pressure aging vessel (PAV) for long-term aging. The asphalt-binders were then rejuvenated with three types of rejuvenators (Type I, II, and III) with different dosages (i.e., 6%, 10%, and 14% for the first, second, and third rejuvenation, respectively). A dynamic shear rheometer (DSR) was then used to analyze the effect of rejuvenators on the rheological properties of all the asphalt-binders. The changes in the functional groups and microscopic morphology in the process of multiple aging and rejuvenation cycles were studied using Fourier transform infrared (FTIR) and atomic force microscopy (AFM). The results indicated that the three rejuvenators could soften the stiffness and restore the microstructures of the aged asphalt-binders in the process of repeated aging and rejuvenation from DSR and AFM testing. Considering the rutting and fatigue properties, the Type I rejuvenator exhibited the potential to achieve the desired rejuvenation effects under multiple rejuvenation cycles. During the multiple aging and rejuvenation cycles, the aging resistance of SBSMA decreased gradually from the FTIR results. This inherently limited the number of repeated rejuvenation cycles. This research is conducive to promoting the application of repeated penetrating rejuvenation.

Revised Penetration Method Based on Evaluate High Temperature Property of SBS Modified Asphalt

2017 ◽  
Vol 902 ◽  
pp. 3-8
Author(s):  
Sen Han ◽  
Pei Sun ◽  
Ya Min Liu ◽  
Wei Li
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Temperature Property ◽  
Modified Asphalt ◽  
Specification Method ◽  
Different Temperatures ◽  
High Temperature Property ◽  
The Difference ◽  
Sbs Modified Asphalt ◽  
Temperature Susceptibility

In order to achieve the penetration method which could reflect the high temperature property of SBS modified asphalt, the paper presented the penetration test of SBS modified asphalt with different types and dosages of SBS modifier at three kinds of penetration weight and four different temperatures. Meanwhile, the high temperature performance of the SBS modified asphalt mixture was studied. It was found that penetration measured under current specification method (25oC, 100g, 5s) could not identify the difference of viscosity and high temperature property of different SBS modified asphalt. When the test conditions are revised to “penetration weight of 150 g, test temperature of 30oC, penetration time of 5s”, the penetration of different SBS modified asphalt measured by revised method could be used to evaluate the temperature susceptibility of SBS modified asphalt accurately and are closely related to the dynamic stability of mixture.

Laboratory evaluation of warm-mix epoxy SBS modified asphalt binders containing Sasobit

2020 ◽  
Vol 32 ◽  
pp. 101550
Author(s):  
Jie Gong ◽  
Xiaocheng Han ◽  
Wufeng Su ◽  
Zhonghua Xi ◽  
Jun Cai ◽  
...  
Keyword(s):  
Asphalt Binders ◽  
Laboratory Evaluation ◽  
Modified Asphalt ◽  
Sbs Modified Asphalt

Experimental Study on Polyphosphoric Acid (PPA) Modified Asphalt Binders

2010 ◽  
Vol 152-153 ◽  
pp. 288-294 ◽  
Author(s):  
Wei Dong Cao ◽  
Shu Tang Liu ◽  
Hong Lu Mao
Keyword(s):  
Low Temperature ◽  
Softening Point ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Point Test ◽  
Low Temperature Performance ◽  
Four Levels ◽  
Temperature Susceptibility

Polyphosphric acid (PPA) modified asphalt binders were produced in the laboratory using one base asphalt and four levels of PPA contents (0.6%, 1.0%, 1.5% and 2.0% by weight of base asphalt). Penetration test, softening point test, rotation viscosity test, creep test with bending beam rheometer (BBR) and four components test were carried out to study the performance of PPA modified asphalt binders and possible modification mechanism. The results indicate that the high-temperature performance of PPA modified asphalt binders are obviously improved and temperature susceptibility are decreased, but the low-temperature performance slightly decline compared with base asphalt. The PPA content has a very significant effect on softening point whereas it has no significant influence on low-temperature performance according to variance analysis (ANOVA). Finally, four components test reveals that the primary modification mechanism of PPA is the change of chemical composition of asphalt binder.

Analysis of Temperature Sensitivity of the Synchronous Pavement Sealing

2012 ◽  
Vol 174-177 ◽  
pp. 575-578
Author(s):  
Peng Tao Xue ◽  
Xiu Shan Wang
Keyword(s):  
Temperature Sensitivity ◽  
Influence Of Temperature ◽  
Modified Asphalt ◽  
Pull Out ◽  
Influence Of Temperature On ◽  
Flow Deformation ◽  
Emulsified Asphalt ◽  
Sbs Modified Asphalt ◽  
Temperature Susceptibility ◽  
Pull Out Strength

Through the pull-out tests of the following three pavement sealing techniques: rubber asphalt, SBS modified asphalt and SBR modified emulsified asphalt, a contrast was made to analyze the influence of temperature on the pull-out strength and the displacement value of damaged sealing coats, so as to analyze the temperature sensitivity of the three sealing coats of synchronous pavements. The results show that: the rubber asphalt sealing coat, modified by the rubber power, has good temperature sensitivity and the temperature susceptibility of asphalt has been improved, with a greater ductility in low temperature and a better resistance to flow deformation in high temperature.

Effect of Waste Edible Animal Oil on Physical Properties of Aged Asphalt

2014 ◽  
Vol 599 ◽  
pp. 130-134 ◽  
Author(s):  
Yang Sang ◽  
Mei Zhu Chen ◽  
Jin Wen ◽  
Bin Bin Leng ◽  
Shao Peng Wu
Keyword(s):  
Thin Film ◽  
Physical Properties ◽  
Softening Point ◽  
Asphalt Binders ◽  
Oven Test ◽  
Modified Asphalt ◽  
Aged Asphalt ◽  
Sbs Modified Asphalt

In order to explore the feasibility of waste edible animal oil used as the asphalt rejuvenator, this study investigated the effect of waste edible animal oil on softening point, penetration, ductility and viscosity of aged asphalt binders. The aged asphalt binders were obtained from the indoor simulating aging processes by using Thin Film Oven Test (TFOT) and Pressure Aging Vessel (PAV). The results show that the dosage of waste animal oil has different effect on physical properties of aged asphalt. Both 70# asphalt and SBS modified asphalt have the optimal content of waste edible animal oil to achieve the best physical properties. The optimal contents of waste edible animal oil for 70# asphalt and SBS modified asphalt are 6% and 4%, respectively.

Sign in / Sign up

Export Citation Format

Share Document