Results 211 to 220 of about 12,785 (258)
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Investigating self healing behaviour of pure bitumen using Dynamic Shear Rheometer
Fuel, 2011Abstract Self healing is known as a built-in property of bitumen, which can help bitumen and asphalt concrete to recover its strength after damage. Healing can also extend the service life of asphalt pavements. A two-piece healing (TPH) test was developed to investigate the self healing behaviour of pure bitumen using the Dynamic Shear Rheometer (DSR)
Jian Qiu +2 more
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Research on the Calibration Method of Dynamic Shear Rheometer
Proceedings of the 2nd International Conference on Artificial Intelligence and Advanced Manufacture, 2020This paper introduces the internal mechanism and working principle of the dynamic shear rheometer, and proposes the measurement index and calibration method of the dynamic shear rheometer. The stability of the complex shear viscosity of the dynamic shear rheometer is less than 3%, and the relative indication error of the complex shear viscosity of the ...
Yixu Wang +4 more
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Fatigue behavior of asphalt binder at multiple dynamic shear rheometer gap sizes
Construction and Building MaterialsRong Luo, Tingting Huang, Zeyu Zhang
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Creep Testing of Bitumens Using the Dynamic Shear Rheometer
International Journal of Pavement Engineering, 2002This paper describes the use of the Dynamic Shear Rheometer (DSR) to characterise the steady-state shear deformation properties of two grades of bitumen over a wide range of stresses and strain rates. The steady-state shear strain rate has been used to characterise the quasi-static deformation behaviour of the bitumen.
Andrew C. Collop +2 more
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The influence of geometry and sample preparation on dynamic shear rheometer testing
Performance of Bituminous and Hydraulic Materials in Pavements, 2017The dynamic shear rheometer (DSR) can be considered to be one of the most complex and powerful instruments for characterising the flow properties of bitumen. This paper describes an investigation into the influence of three sample preparation methods (hot pour, silicone mould and weighing) and two testing geometries (8 and 25 mm parallel plate) on the ...
G Airey, A Hunter, B Rahimzadeh
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Using the Dynamic Shear Rheometer for Low-Temperature Grading of Asphalt Binders
Journal of Testing and Evaluation, 2021Abstract The Superpave Performance Grading (PG) framework or a variation of this framework is often used as a purchase specification in the United States and as a tool to evaluate the expected performance of modified and unmodified asphalt binders in many countries around the world.
Satyavati Komaragiri +5 more
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Construction and Building Materials, 2021
Abstract The low-temperature rheology of bituminous binders is of great interest because low-temperature cracking is one of the primary failure modes of asphaltic pavements in cold-climate region. Low temperature binder characterization/grading has been primarily conducted using the bending beam rheometer (BBR) which requires much binder for specimen
Santosh Reddy Kommidi, Yong-Rak Kim
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Abstract The low-temperature rheology of bituminous binders is of great interest because low-temperature cracking is one of the primary failure modes of asphaltic pavements in cold-climate region. Low temperature binder characterization/grading has been primarily conducted using the bending beam rheometer (BBR) which requires much binder for specimen
Santosh Reddy Kommidi, Yong-Rak Kim
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Research of Bituminous MortarFatigue Test Method Based on Dynamic Shear Rheometer
Journal of Testing and Evaluation, 2012Abstract This paper presents a new test method that allows fatigue characterization on bituminous mortar by means of dynamic shear rheometer (DSR). The studied mortar is composed of bitumen, filler and fine sand at a mass ratio of 0.34:0.30:0.36.
L. T. Mo +3 more
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Performance Study on Asphalt Mortar with Dynamical Shear Rheometer
Advanced Materials Research, 2014A series of asphalt mortars were prepared and tested by dynamic shear rheometer and other common evaluation methods aiming at investigating the physical performance of asphalt mortars. The final analysis shows that the changes of strength modulus and viscoelastic property rely on the composition differences in asphalt mortar, and modified asphalt and ...
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Identification of Concrete Incompatibilities using Dynamic Shear Rheometer (DSR)
Proceedings of the International Conference on Concrete PavementsIn concrete, the chemical interactions between chemical admixtures and portland cement is complicated and unpredictable. Occasionally these interactions may cause a serious set retardation or excessively fast stiffening. The objective of this study was to develop a reliable test method to predict potential concrete incompatibilities through the direct ...
Sehoon Jang +2 more
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