Relationship between multiple stress creep recovery (MSCR) binder test results and asphalt concrete rutting resistance in Brazilian roadways

2017 ◽  
Vol 145 ◽  
pp. 20-27 ◽  
Author(s):  
Juceline B.S. Bastos ◽  
Lucas F.A.L. Babadopulos ◽  
Jorge B. Soares
Keyword(s):  
Asphalt Concrete ◽  
Creep Recovery ◽  
Test Results ◽  
Rutting Resistance ◽  
Multiple Stress ◽  
Multiple Stress Creep Recovery

scholarly journals The use of multiple stress creep recovery test to characterize polymer modified bitumen

2020 ◽  
Vol 66 (3) ◽  
pp. 23-31
Author(s):  
Andrija GraŠić ◽  
Marko Orešković ◽  
Goran Mladenović
Keyword(s):  
High Temperatures ◽  
Creep Recovery ◽  
Modified Bitumen ◽  
Rutting Resistance ◽  
Recovery Test ◽  
Multiple Stress ◽  
Stress Levels ◽  
Multiple Stress Creep Recovery ◽  
Polymer Modified Bitumen

The paper analyzes the performance of polymer modified bitumen due to multiple stress creep recovery (MSCR). This phenomenon is of great importance when considering binder’s performance related to rutting resistance on high temperatures during exploitation period. The paper presents testing results of five polymer modified bitumen samples, obtained by two producers, tested under same temperature and stress levels. Finally, bitumen samples are classified under new MSCR specification, according to SUPERPAVE methodology.

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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