High-Temperature Properties of Asphalt Binders: Comparison of Multiple Stress Creep Recovery and Performance Grading Systems

2016 ◽  
Vol 2574 (1) ◽  
pp. 131-143 ◽  
Author(s):  
Ali Behnood ◽  
Ayesha Shah ◽  
Rebecca S. McDaniel ◽  
Matthew Beeson ◽  
Jan Olek
Keyword(s):  
High Temperature ◽  
Asphalt Binders ◽  
Creep Recovery ◽  
High Temperature Properties ◽  
Multiple Stress ◽  
Grading Systems ◽  
Multiple Stress Creep Recovery ◽  
And Performance ◽  
Performance Grading

Rheological Evaluation of Asphalt Cement Derived from Alberta Oil-sand Bitumen at Different Distillation Temperatures

2020 ◽  
Author(s):  
Nura Bala ◽  
Amirhossein Ghasemirad ◽  
Leila Hashemian
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Oil Sands ◽  
Permanent Deformation ◽  
Asphalt Binders ◽  
Oil Sand ◽  
Asphalt Cement ◽  
And Performance ◽  
Oil Sands Bitumen ◽  
Performance Grading

In this study, high, intermediate and low temperature properties of two crude oil asphalts and three asphalts derived from Alberta oil sands bitumen distilled at temperatures of 400 °C, 430 °C and 460 °C were evaluated. High and intermediate temperature properties of the asphalt binders at different distillation temperatures were studied using a dynamic shear rheometer (DSR) through the performance grading (PG) tests. Low-temperature properties and performance grading were evaluated using a bending beam rheometer (BBR). The DSR high-temperature analysis indicated that oil sand bitumens distilled at high temperatures have significantly higher stiffness and more resistant to permanent deformation. BBR test results showed that irrespective of the asphalt source, oil sand bitumens distilled at lower temperatures are more resistant to cracking at low temperatures. The overall results indicate that oil sand bitumens are thus suitable to be used for both asphalt pavements requiring low and high-temperature resistance.

scholarly journals High temperature properties of modified bituminous binders produced in Poland

2019 ◽  
Vol 262 ◽  
pp. 05011 ◽  
Author(s):  
Piotr Radziszewski ◽  
Michał Sarnowski ◽  
Piotr Pokorski ◽  
Karol J. Kowalski ◽  
Jan Król
Keyword(s):  
High Temperature ◽  
Permanent Deformation ◽  
Creep Recovery ◽  
High Temperature Properties ◽  
Recovery Test ◽  
Modified Binders ◽  
Multiple Stress Creep Recovery ◽  
Bituminous Binders ◽  
Operating Temperatures ◽  
Temperature Test

Bitumen used for the construction of road pavements should exhibit adequate resistance to loads at high operating temperatures. An effective method of improving the properties of bitumen is their modification. To evaluate the high-temperature properties of bitumen, standard consistency tests and advanced rheological tests under dynamic load are conducted. The main purpose of the article is to assess the high temperature properties of modified binders produced by two major Polish producers. The assessment was based on the tests results of modified binders in the range of the standard softening point temperature test and tests in the dynamic shear rheometer (DSR) according to the requirements of Strategic Highway Research Program (SHRP) and Multiple Stress Creep Recovery Test (MSCR). It has been shown that due to the highest operating temperatures of road pavements in Poland, produced bituminous binders meet the requirements of resistance to permanent deformation with a great reserve.

scholarly journals Characterization of asphalt binders extracted from field mixtures containing RAP and/or RAS

2022 ◽  
Vol 13 (1) ◽  
pp. 140-152
Author(s):  
Eslam Deef-Allah ◽  
Magdy Abdelrahman
Keyword(s):  
High Temperature ◽  
Rheological Properties ◽  
Asphalt Binder ◽  
Asphalt Mixtures ◽  
Asphalt Binders ◽  
Creep Recovery ◽  
Recycled Asphalt ◽  
Reclaimed Asphalt ◽  
Multiple Stress Creep Recovery ◽  
Pavement Construction

The use of reclaimed asphalt pavement (RAP) and/or recycled asphalt shingles (RAS) in the asphalt mixtures is a common practice in the U.S.A. However, there is a controversy to date on how RAP/RAS interact with virgin asphalt binders (VABs) in asphalt mixtures. For mixtures containing RAP/RAS, the aged asphalt binders in RAP and air-blown asphalt binders in RAS alter the performances of the extracted asphalt binders (EABs). Thus, the rheological properties of EABs from these mixtures require more investigation. The focus of this paper was relating the high-temperature properties of EABs from field cores to the corresponding rolling thin film oven aged virgin asphalt binders (RTFO AVABs). Furthermore, a comparison of the effect of RAP and RAS on the high-temperature rheological properties of EABs was another objective. Different asphalt cores were collected from the field within two weeks after the pavement construction process in 2016. These cores represented eight asphalt mixtures with different asphalt binder replacement percentages by RAP, RAS, or both. The asphalt binders were extracted from these mixtures and considered as RTFO AVABs. The high-temperature rheological properties included the temperature sweep and frequency sweep testing and the multiple stress creep recovery testing. The EABs had higher stiffnesses and elasticates than the corresponding RTFO AVABs because of the aged binders in RAP/RAS. The binders in RAP interacted more readily with VABs than RAS binders.

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.

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