Effects of Aging on the Physical and Rheological Properties of Asphalt Binder Incorporating Rediset®

2014 ◽  
Vol 70 (7) ◽  
Author(s):  
Mohamad Yusri Aman ◽  
Zulkurnain Shahadan ◽  
Munzilah Md. Ruhani ◽  
Rosnawati Buhari
Keyword(s):  
Statistical Analysis ◽  
Rheological Properties ◽  
Asphalt Binder ◽  
Dynamic Shear ◽  
Short Term ◽  
Rotational Viscometer ◽  
Aging Index ◽  
Modified Binders ◽  
Before And After ◽  
Effects Of Aging

This paper focuses on physical and rheological properties of virgin asphalt binder blended with different percentage of Rediset® content. The rheological properties of the Rediset® modified binders were characterized before and after being subjected to short-term aging using rotational viscometer (RV) and dynamic shear rheometer (DSR) according to SuperpaveTM test protocols. The results indicated that the penetration and softening point were consistently decreased and increased, respectively for unaged and short-term aged samples. The penetration index (PI) and viscosity aging index (VAI) were increased as the Rediset® modified binders aged and showed a high significance correlation. The addition of Rediset® in asphalt binder exhibited change in binder rheology after subjected to short-term aged which influenced the rutting parameter. A statistical analysis showed that Rediset® used as warm asphalt additive had significantly increased the G*/Sin δ parameter which indicated greater resistance to rutting.

Influence of Aging on the Physical Properties and Chemical Compositions of Asphalt Binder with Soft Clay Particles

2017 ◽  
Vol 24 ◽  
pp. 48-54
Author(s):  
Allam Musbah Al Allam ◽  
Mohd Idrus bin Masirin ◽  
Ahmad Suliman B. Ali
Keyword(s):  
Physical Properties ◽  
Asphalt Binder ◽  
Soft Clay ◽  
Asphalt Binders ◽  
Chemical Compositions ◽  
Short Term ◽  
Rotational Viscometer ◽  
Clay Particles ◽  
Aging Index ◽  
Temperature Susceptibility

This study investigates the effect of oxidation aging on the physical properties of asphalt binder modified by various ratios of soft clay contents. The rheological properties of soft clay modified asphalt binders were performance under unaged and short-term aged, and being applied by using rotational viscometer and dynamic shear rheometer. Therefore, the results indicated that the physical properties of penetration and softening point were consistently reduced and increased, respectively for unaged and short-term aged specimens. The penetration index and viscosity aging index were increased as the soft clay modified binders aged and showed a high significance correlation. It also has the lowest susceptibility for the temperature susceptibility.

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.

Short Term and Long Term Aging Effects of Asphalt Binder Modified with Montmorillonite

2013 ◽  
Vol 594-595 ◽  
pp. 996-1002 ◽  
Author(s):  
Mohd Ezree Abdullah ◽  
Kemas Ahmad Zamhari ◽  
Rosnawati Buhari ◽  
Mohd Nafarizal Nayan ◽  
Hainin Mohd Rosli
Keyword(s):  
Aging Process ◽  
Asphalt Binder ◽  
Mechanical Analysis ◽  
Aging Effects ◽  
Short Term ◽  
Rotational Viscometer ◽  
Before And After ◽  
Pavement Construction ◽  
Modified Binder

Nowadays, most of asphalt used in pavement construction is produced from petrochemicals through refining process of crude oil. When evolves with time, asphalt become stiffer and brittle due aging process. In this paper, the rheological effect of short-term and long-term oxidative ageing of asphalt binder modified with montmorillonite (MMT) was studied using SuperpaveTM rotational viscometer (RV), dynamic shear rheometer (DSR) and Fourier transform infrared (FTIR) instruments. The results indicate the addition of MMT increased the viscosity. Based on dynamic mechanical analysis with DSR, MMT modified binder has a potential to increase rutting and fatigue resistance. In terms of FTIR test, it appears that the chemical bonding had changed in the asphalt binder before and after RTFO and PAV aging which suggest that the additional of MMT could delay the aging process.

scholarly journals Effect of Short Term Aging on Unmodified and Local Crumb Rubber (LCR) Modified Bitumen

2020 ◽  
Vol 18 (02) ◽  
pp. 63-70
Author(s):  
Muhammad Saad Waheed ◽  
Manzoor Elahi
Keyword(s):  
Thin Film ◽  
Phase Angle ◽  
Complex Modulus ◽  
Crumb Rubber ◽  
Dynamic Shear ◽  
Short Term ◽  
Modified Bitumen ◽  
Before And After ◽  
The Difference ◽  
Effects Of Aging

Two grades of bitumen, (60/70 and 80/100), were modified by addition of Local Crumb Rubber (LCR) by weight of base bitumen. To investigate the effects of short-term aging on modified and LCR modified bitumen, Rolling Thin Film Oven (RTFO) test was used to simulate the short term aging. Dynamic shear rheometer (DSR) was used to assess the rheological properties of bitumen, both before and after aging. It was observed that at 65 degree Celcius on aging, the phase angle (sigma) of unmodified bitumen decreased by 3 and 4% for 60/70 and 80/100 bitumen respectively; whereas, for 60/70 LCR modified bitumen, the phase angle (sigma) on RTFO aging decreased by 7% for all LCR content (10, 15 and 20%) by weight of base bitumen. However, on RTFO aging (sigma), values for LCR modified 80/100 bitumen varied across different LCR content and could not be generalized. The complex modulus |G*| of LCR modified 60/70 bitumen increased on aging for both modified and unmodified bitumen at 65C, but with the increase in LCR content, the difference between bitumen aged and un-aged values of |G*| was considerably lowered. An interesting finding was for 80/100 bitumen modified with 20% LCR content by weight, which showed a reduction in |G*| values and an increase in (sigma) values on aging. This shows that to some extent, LCR compensates for the stiffening effects of aging.

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.

Study of Rheological Properties of Cariphalte Modified Asphalt

2014 ◽  
Vol 638-640 ◽  
pp. 1185-1189
Author(s):  
Tan Hua
Keyword(s):  
Comparative Analysis ◽  
Rheological Properties ◽  
Fatigue Damage ◽  
Systematic Study ◽  
Low Temperatures ◽  
Permanent Deformation ◽  
Asphalt Binder ◽  
Fatigue Properties ◽  
Dynamic Shear ◽  
Modified Asphalt

To explore the effects of different factors on the rheological properties of cariphalte modified asphalt, based superpave asphalt binder relevant norms, through the use of dynamic shear rheometer Shell 70# asphalt under different temperature, frequency and strain conditions and rheological properties of cariphalte modified asphalt carrying on a systematic study, and comparative analysis of the two anti-fatigue properties of asphalt in the middle and low temperature.The results show that: compared with 70# asphalt, cariphalte modified asphalt has better rutting resistance over a wide temperature range; at lower frequencies and high intensity pavement, cariphalte modified asphalt to better resistance to permanent deformation; better fatigue resistance at low temperatures, and more fatigue damage is not easy to achieve.

scholarly journals Evaluation of Petroleum Resin in Rubberized Asphalt Binder

2021 ◽  
Vol 13 (16) ◽  
pp. 9319
Author(s):  
Hyun Hwan Kim ◽  
Mithil Mazumder ◽  
Moon-Sup Lee ◽  
Soon-Jae Lee
Keyword(s):  
Thin Film ◽  
Low Temperatures ◽  
Asphalt Binder ◽  
Crumb Rubber ◽  
Creep Recovery ◽  
Dynamic Shear ◽  
Bending Beam Rheometer ◽  
Rotational Viscometer ◽  
Multiple Stress ◽  
Multiple Stress Creep Recovery

The crumb rubber modified (CRM) binder was evaluated considering the general operating temperatures of high, intermediate, and low temperatures. CRM binders were produced with four different contents (0, 5, 10, and 15%) using the base asphalt binder (PG64-22). Then, they were artificially aged by a rolling thin-film oven (RTFO) and pressure aging vessel (PAV). Superpave binder tests using a rotational viscometer (RV), dynamic shear rheometer (DSR), and bending beam rheometer (BBR) was applied to characterize the performance of the original and aged binders. Multiple stress creep recovery (MSCR) tests were also performed for deeper rutting characterization. The results of this study are as follows: (1) the presence of PR increases the binder viscosity, (2) the integration of CRM greatly improved the rutting resistance of the binder, and it was found that PR also improved the rutting characteristics, and (3) it is observed that PR is detrimental to the cracking properties of CRM binders.

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