Characterizing SBS modified asphalt with sulfur using multiple stress creep recovery test

2015 ◽  
Vol 93 ◽  
pp. 514-521 ◽  
Author(s):  
Weidong Huang ◽  
Naipeng Tang
Keyword(s):  
Creep Recovery ◽  
Recovery Test ◽  
Multiple Stress ◽  
Modified Asphalt ◽  
Multiple Stress Creep Recovery ◽  
Sbs Modified Asphalt

Research on Rubber/SBS Modified Asphalt by MSCR Test

2012 ◽  
Vol 557-559 ◽  
pp. 1066-1069 ◽  
Author(s):  
Xiao Bing Qiao ◽  
Xiao Min Li ◽  
Ding Bang Wei
Keyword(s):  
High Temperature ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Creep Recovery ◽  
Climate Conditions ◽  
Recovery Test ◽  
Multiple Stress ◽  
Modified Asphalt ◽  
Multiple Stress Creep Recovery ◽  
Sbs Modified Asphalt

Multiple stress creep recovery test (MSCR) as an effective evalution mothed for polymer modified asphalt was studied newly,and was formed a new ASTM standard.In this article, SBS modified asphalt,rubber asphalt,and rubber/SBS composite modified asphalt were taken a multiple stress creep recovery test (MSCR) through the dynamic shear rheometer (DSR), value of Jnr and Jnr-diff from MSCR test of different modified asphalt were studied according to ASTM D7405-08.The results showed the rubber / SBS modified asphalt had a lower Jnr compared with the other two,which indicating that it had an obvious advantage on high temperature deformation resistancing.Furthermore,low Jnr-diff value was related with lower dependence on the shear stress. made it applicable to conditions such as high temperature and overload or long steep road construction; MSCR test also provides a reasonable basis for choosing modified asphalt in such geological and climate conditions.

scholarly journals Multiple Stress Creep Recovery (MSCR) Test for Determination of Waste Engine Oil Modified Asphalt Binder as Pavement Material

2022 ◽  
pp. 8-14
Author(s):  
Biruk Tadele ◽  
Emer T Quezon
Keyword(s):  
Asphalt Binder ◽  
Engine Oil ◽  
Creep Recovery ◽  
Multiple Stress ◽  
Modified Asphalt ◽  
Waste Engine Oil ◽  
Modified Asphalt Binder ◽  
Multiple Stress Creep Recovery ◽  
Modified Binder ◽  
Pavement Material

Engineers have been using modified binders to improve the quality of flexible pavements. The use of waste material is one of the solutions taken in this direction. It is for this ground that the studies emphasis on the evaluation of waste engine oil as a modifier for asphalt binder as a pavement material. In the study uses four samples extracted from 80/100 penetration grade bitumen. From four sample first sample was checked for weather requirements of asphalt binder meet or not and the three were modified with different content of engine oil (3,6 and 9%). The behaviors of both unmodified and modified binder were checked for rheological properties. Dynamic shear rheometer (DSR) was used to determine high temperature performance grade (PG) and multiple stress creep recovery tests to determine rutting resistance properties of the binder. PG analysis indicates that both aged and un-aged 3% and 6% modified binder have similar higher PG grade with the unmodified one and 9% modified to have lower PG vale. Jnr3.2 value of modified asphalt binder is lower than unmodified binder indicating that modification had improved the rutting resistance and design traffic load (ESALS). The study shows that it is possible to use waste engine oil-modified binder as a pavement material.

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