Micron Fly Ash/SBS Modified Bitumen: Preparation and Aging Property

2011 ◽  
Vol 99-100 ◽  
pp. 1199-1202
Author(s):  
De Jie Zhou ◽  
Nian Feng Han

Abstract. Micron fly ash/SBS modified bitumen composites were prepared by melt intercalation. The physical properties and ageing properties of micron fly ash/SBS modified bitumen were investigated. The results showed that micron fly ash/SBS modified bitumen exhibited a decreasing penetration, an increasing softening point, and a decreasing ductility. Compared with that of SBS modified bitumen, the anti-aging property of the micron fly ash/SBS modified bitumen becomes worse.

2010 ◽  
Vol 168-170 ◽  
pp. 852-855
Author(s):  
Nian Feng Han ◽  
De Jie Zhou ◽  
Xin De Tang

Organophilic montmorillonite (OMMT)/SBS modified bitumen composites were prepared by melt intercalation. The physical properties and ageing properties of OMMT/SBS modified bitumen were investigated. The results showed that OMMT/SBS modified bitumen exhibited a decreasing penetration, an increasing softening point, and a decreasing ductility. Compared with that of SBS modified bitumen, the OMMT /SBS modified bitumen can enhance the aging resistance of SBS modified bitumen.


2014 ◽  
Vol 919-921 ◽  
pp. 1169-1172
Author(s):  
De Jie Zhou ◽  
Nian Feng Han

Composite modified asphalts with micron fly ash/SBS and nanocalcium carbonate (nanoCaCO3)/ SBS were prepared respectively by melt blending. The ageing properties and physical properties of micron fly ash/SBS and CaCO3/SBS modified bitumen were investigated. The results demonstrate that micron fly ash/SBS modified bitumen exhibited an increasing softening point, a decreasing penetration and a decreasing ductility. Compared with that of SBS modified bitumen, the anti-aging property of the micron fly ash/SBS modified bitumen becomes worse. Effects of the nanoCaCO3 on the properties of SBS modified asphalt appear as a decreasing penetration, an increasing softening point, and a decreasing ductility. The anti-aging property of the CaCO3/SBS modified asphalt was better than that of the SBS modified asphalt.


2020 ◽  
Vol 993 ◽  
pp. 1361-1366
Author(s):  
Tian Wei Zhang ◽  
Jian Xin Li ◽  
San Peng Mao ◽  
Gui Tao Zheng ◽  
Jian Ying Yu

Fluid catalytic cracking (FCC) slurry is a by-product of petrochemical industry rich in aromatics. In this paper, the effect of FCC slurry on the physical properties of SBS modified bitumen was investigated by softening point, penetration, ductility and low temperature flexibility test. The influence of FCC slurry on the compatibility of SBS modified bitumen was evaluated by fluorescence microscope and segregation test. The results show that FCC slurry improves the softening point, penetration, ductility and low temperature flexibility of SBS modified bitumen. Fluorescence microscope showed that FCC slurry promotes the dispersion of SBS in bitumen, which is conducive to the formation of network crosslinking structure of SBS modified bitumen. The segregation test indicated that the compatibility of SBS with bitumen was improved with the content of FCC slurry increasing.


2019 ◽  
Vol 15 (4) ◽  
pp. 528-531
Author(s):  
Norhidayah Abdul Hassan ◽  
Nur Azni Ruzi ◽  
Nurul Athma Mohd Shukry ◽  
Ramadhansyah Putra Jaya ◽  
Mohd Rosli Hainin ◽  
...  

The addition of modifier, either to replace bitumen or as an additive, could potentially improve the performance of conventional bitumen used in road construction. This study characterizes the physical properties of bitumen 80/100 penetration grade modified with diatomite powder and waste engine oil (WEO). Different percentages of WEO i.e. 1%, 2%, and 3%, were added with 1% diatomite to the bitumen. The conventional and modified bitumen samples were tested for penetration, softening point, viscosity, and loss on heating. Results showed that the increase of WEO content, particularly at 3% in the modified bitumen, has softened the bitumen with lower softening point and higher loss on heating than the unmodified sample. In contrast, the diatomite powder has shown potential in reinforcing the bitumen structure at high temperature based on higher viscosity obtained at 165°C compared to conventional bitumen.


2020 ◽  
Vol 255 ◽  
pp. 119364
Author(s):  
Sri Atmaja P. Rosyidi ◽  
Suzielah Rahmad ◽  
Nur Izzi Md. Yusoff ◽  
Aini Hazwani Shahrir ◽  
Ahmad Nazrul Hakimi Ibrahim ◽  
...  

2017 ◽  
Vol 50 (3) ◽  
pp. 241-255 ◽  
Author(s):  
Seyfullah Keyf

In this article, 50/70 penetration grade TUPRAS bitumen was modified. Reactive elastomeric terpolymer (Elvaloy RET; DuPont Company), ethylene vinyl acetate (EVA) and styrene–butadiene–styrene (SBS) polymers were used in bitumen modification. Set hours of the tests were applied to samples taken from the obtained modified bitumen mixture. Varying amount of reactive ethylene terpolymer with weight ratios of 0.5%, 1.0%, 1.5%, 2.0% and 2.5% were introduced to the mixture of raw bitumen with 1.0% SBS and 1.0% EVA. Penetration, penetration index, softening point, ductility and elastic recovery tests were performed with these modified bitumen and raw bitumen. The samples of raw bitumen and modified bitumens of 2.0% Elvaloy RET, 1.0% SBS and 1.0% EVA were investigated by means of IR spectroscopy. The raw bitumen was modified with SBS, EVA and RET, and it was determined that penetration and ductility values were decreased while penetration index, softening point and elastic recovery were increased. The purpose of this study is to research the improving properties of 50/70 penetration grade–modified bitumen used in highways of Turkey. The most important characteristics (such as softening point, penetration and % elastic recovery) of new polymer-modified bitumen (NPMB) containing 2.5% EVA, 1% RET and 1% SBS were compared with eight different types of polymer-modified bitumens in Turkey (TPMB). NPMB provided all required parameters (softening point, penetration and % elastic recovery) for five different types of TPMBs (TPMB 70-16, TPMB 70-22, TPMB 76-16, TPMB 76-22 and TPMB 82-16).


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