The effects of UHMWPE/nanoclay on rheological properties of modified asphalt binder

2019 ◽  
Vol 38 (4) ◽  
pp. 309-315
Author(s):  
Gholam Hossein Hamedi ◽  
Zahra Ranjbar Pirbasti
2016 ◽  
Vol 78 (7-3) ◽  
Author(s):  
Rosnawati Buhari ◽  
Nur Fareesya Zabidi ◽  
Mohd Ezree Abdullah ◽  
Siti Khatijah Abu Bakar ◽  
Nurul Hidayah Mohd Kamarudin

The objectives of this study were to determine the blending parameters of coconut shell powder (CSP) modified asphalt binder and to evaluate the rheological properties of CSP modified asphalt binder. CSP of 2%, 4%, 6%, 8% and 10% by weight of asphalt have been incorporated into an unaged 80/100 asphalt mix in order to improve its performance. The influence of the additives on the physical and rheological properties was evaluated with penetration test, softening point, storage stability, dynamic shear rheometer test (DSR), and Field Emission Scanning Electron Microscope (FESEM). The aging of asphalt binders was simulated in a laboratory by using Rotational Thin Film Oven (RTFO). The results showed that the addition of CSP into virgin binder was decreasing the penetration value and increasing the softening point temperature compared to the original binder. On the rheological effect, for unaged modified binder, higher CSP resulted higher G*/sin δ especially at lower temperature compared to the unaged control binder. Besides, for the aged modified binder, stiffness was lower than the control aged binder for all temperature.


2017 ◽  
Vol 35 (7) ◽  
pp. 641-646 ◽  
Author(s):  
Fereidoon Moghadas Nejad ◽  
Hossein Nazari ◽  
Koorosh Naderi ◽  
Fariba Karimiyan Khosroshahi ◽  
Mostafa Hatefi Oskuei

2020 ◽  
Vol 21 (sup1) ◽  
pp. S140-S154 ◽  
Author(s):  
Siyu Chen ◽  
Dongdong Ge ◽  
Fangyuan Gong ◽  
Zhanping You ◽  
Aboelkasim Diab ◽  
...  

2015 ◽  
Vol 76 (9) ◽  
Author(s):  
E. Shaffie ◽  
J. Ahmad ◽  
A. K. Arshad ◽  
D. Kamarun

In this paper, the effects of nanopolyacrylate (NP) in binder modification on the empirical and rheological characteristics of the conventional binder were explored. The empirical and rheological binder properties were characterized using penetration, softening point, viscosity and dynamic shear rheometer (DSR) respectively.  These testings have become useful methods in characterizing of the binder performance on the pavement. The results indicated that NP polymer modification improved the physical properties of the conventional binder such as; penetration, softening point and temperature susceptibility. The results of viscosity test show that the NP polymer modified binder is more viscous than unmodified binder where viscosity increases with the increment of polymer content. The DSR results indicate that the NP polymer improves rheological properties of conventional binder, i.e. increasing the complex shear modulus (G∗) values and rutting parameters (G∗/sin δ), as well as decreasing the phase angle (δ) values. Therefore, it can be concluded that NP polymers considerably improves elastic properties and rutting resistance of binder and thus could be used for enhancing the asphalt pavement performance.


2021 ◽  
Vol 273 ◽  
pp. 122046
Author(s):  
Haiqi He ◽  
Jiulong Hu ◽  
Rui Li ◽  
Chenchen Shen ◽  
Jianzhong Pei ◽  
...  

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