Mechanical and Functional Self-Healing Characteristics of Hot-Poured Crack Sealant Exploiting Dynamic Shear Rheometer and Low-Temperature Tensile Tester

2021 ◽  
Vol 147 (3) ◽  
pp. 04021018
Author(s):  
Liping Cao ◽  
Chen Yang ◽  
Weijun Wang ◽  
Zejiao Dong
Keyword(s):  
Low Temperature ◽  
Self Healing ◽  
Dynamic Shear ◽  
Dynamic Shear Rheometer ◽  
Tensile Tester ◽  
Crack Sealant

Effect of Ageing on Rheological Properties of Asphalt

2021 ◽  
Vol 891 ◽  
pp. 185-189
Author(s):  
Li Xing Ma
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Rheological Properties ◽  
Complex Modulus ◽  
Dynamic Shear ◽  
Dynamic Shear Rheometer ◽  
Field Behavior ◽  
Aged Asphalt ◽  
Actual Field

This paper is to study the mechanism of aging on the rheological properties of the asphalt and make correlations with the actual field behavior of the binder. The effects of ageing on rheological properties of asphalt has been studied by Dynamic Shear Rheometer(DSR). Significant differences of rheological properties and composition were observed between fresh and aged asphalt. The results show that aging at low temperature increases the complex modulus of asphalt, but has little effect at high temperature.

Research of the Recycled Asphalt 's Rheological Behavior

2012 ◽  
Vol 550-553 ◽  
pp. 2395-2401
Author(s):  
Jin Li
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Rheological Behavior ◽  
Dynamic Shear ◽  
Dynamic Shear Rheometer ◽  
Bending Beam Rheometer ◽  
Recycled Asphalt

Analyze the rheology of recycled asphalts used by three rejuvenators：R1、R2、R3，the study of recycled asphalt's rheological behavior adopt BBR(Bending Beam Rheometer) and DSR(Dynamic Shear Rheometer). From the result of experiment：the usage of rejuvenator reduce the asphalt ability of anti-tracking under high temperature, some of them can even recover to the level of fresh asphalt；the mix of rejuvenators improve largely the asphalt ability of resistance to fatigue and the ability of anti-cracking under low temperature.

Considerations for using the 4 mm Plate Geometry in the Dynamic Shear Rheometer for Low Temperature Evaluation of Asphalt Binders

2019 ◽  
Vol 2673 (11) ◽  
pp. 649-659 ◽  
Author(s):  
Ramez Hajj ◽  
Angelo Filonzi ◽  
Syeda Rahman ◽  
Amit Bhasin
Keyword(s):  
Low Temperature ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Asphalt Pavements ◽  
Dynamic Shear ◽  
Dynamic Shear Rheometer ◽  
Reclaimed Asphalt ◽  
Load Response ◽  
Linear Viscoelastic ◽  
Analytical Approaches

The low-temperature properties of asphalt binder have attracted attention in recent years thanks to an increase in the use of reclaimed asphalt pavements (RAP). Traditional methods to evaluate the low-temperature properties of the binder require a large amount of binder that needs to be recovered from RAP samples for testing with a Bending Beam Rheometer (BBR). To economize on sample size for RAP materials and also for emulsion residues, previous researchers have explored the potential of using a 4 mm diameter specimen with a Dynamic Shear Rheometer (DSR) in lieu of the BBR. To compare results from frequency sweep tests conducted using the DSR with results from the BBR, data from the former need to be converted to time domain and subsequently from a shear load response to an axial load response. Previous research studies have developed methods to accomplish these two conversions to compare data from the DSR with data from the BBR. The objective of this study is to examine some of these methods from the literature and elsewhere based on the principles of linear viscoelastic interconversion using a set of 11 different binders. Results using different analytical approaches from this study show that the DSR has good repeatability and verify that it can be used as a surrogate for the BBR to determine low-temperature properties, while exercising some caution with some of the assumptions related to Poisson’s ratio.

An Alternative Experimental Method for Measuring the Low Temperature Rheological Properties of Asphalt Binder by Using 4mm Parallel Plates on Dynamic Shear Rheometer

2019 ◽  
Vol 2673 (3) ◽  
pp. 427-438 ◽  
Author(s):  
Di Wang ◽  
Augusto Cannone Falchetto ◽  
Alexander Alisov ◽  
Johannes Schrader ◽  
Chiara Riccardi ◽  
...  
Keyword(s):  
Low Temperature ◽  
Rheological Properties ◽  
Experimental Method ◽  
Complex Modulus ◽  
Testing Procedure ◽  
Asphalt Binders ◽  
Rheological Parameters ◽  
Parallel Plates ◽  
Dynamic Shear ◽  
Dynamic Shear Rheometer

The possibility of using the dynamic shear rheometer (DSR) with 4 mm parallel plates and 3 mm gap is investigated as an alternative experimental method to measure the rheological properties of asphalt binders at low temperature. A special butterfly silicone mold was prepared for this purpose and the corresponding testing procedure was also developed. Five different asphalt binders, which are part of two active research projects, were selected. Frequency and temperature sweep tests were conducted using the DSR with three plate–plate geometries: 4 mm, 8 mm, and 25 mm. The new testing procedure was used to measure at low temperatures. The method recently proposed by the Western Research Institute and based on DSR tests with 4 mm parallel plates and 1.75 mm gap was also used for comparison purposes. Black diagrams and Cole-Cole plots were then used to evaluate the experimental data. Complex modulus and phase angle master curves were generated, and the rheological parameters compared. Finally, the two spring, two parabolic elements, one dashpot (2S2P1D) model was selected to investigate the rheological properties of the binders. Results indicate that the proposed procedure is a simple and reliable experimental method and represents an alternative experimental option to measure and analyze the rheological properties of asphalt binders at low temperature.

Investigating self healing behaviour of pure bitumen using Dynamic Shear Rheometer

Fuel ◽  
2011 ◽  
Vol 90 (8) ◽  
pp. 2710-2720 ◽  
Author(s):  
J. Qiu ◽  
M.F.C. van de Ven ◽  
S.P. Wu ◽  
J.Y. Yu ◽  
A.A.A. Molenaar
Keyword(s):  
Self Healing ◽  
Dynamic Shear ◽  
Dynamic Shear Rheometer

Effect of Ultraviolet Light Aging on Fatigue Properties of Asphalt

2014 ◽  
Vol 599 ◽  
pp. 125-129 ◽  
Author(s):  
Ming Wei Yi ◽  
Delehei ◽  
Jin Cai Wang ◽  
Xue Da Feng
Keyword(s):  
Fatigue Life ◽  
Low Temperature ◽  
Life Span ◽  
Fatigue Test ◽  
Ultraviolet Light ◽  
Fatigue Properties ◽  
Dynamic Shear ◽  
Aging Effects ◽  
Dynamic Shear Rheometer ◽  
Ultraviolet Aging

The ultraviolet aging effects on fatigue properties of asphalt were studied by using Dynamic Shear Rheometer (DSR). The low-temperature fatigue performance of asphalt has been tested in this paper with the strain-controlled mode of DSR. The samples were compacted under the temperature of 10°C and the constant strain of 2.0% in strain-controlled mode fatigue test. And the results showed that ultraviolet aging decreases the fatigue life-span of asphalt significantly.

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