Oscillatory shear rheometry of hybrid polymer-modified bitumen using multiple stress creep and recovery and linear amplitude sweep tests

In this study, the mechanical and rheological properties of hybrid polymer-modified bitumen (PMB) have been investigated. For this purpose, nine different polymers—including crumb rubber, elastomers and plastomers at varying content—were studied to evaluate their mechanical performance as single polymers, first, and as a combination of two or more polymers as a hybrid polymer blend. Subsequently, the hybrid polymer blends were added in a relatively small percentage into the base bitumen to study its influence on the rheological performance of hybrid PMB. The mechanical properties identified from the analysis of the stress-strain curve of the single polymers were the Young’s Modulus, tensile stress, and elongation at break. The chemical structure of the polymer hybrid blends was analysed using FTIR, followed by frequency sweep tests conducted using the dynamic shear rheometer (DSR) to determine the bitumen rheological properties. Results showed that hybrid PMB enhances the viscoelastic behaviour of bitumen at both low and high temperature compared to other PMBs only including single polymers.

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Waste tyres crumb rubber as a sustainability enhancer for polymer-modified and hybrid polymer-modified bitumen

International Journal of Pavement Engineering ◽

10.1080/10298436.2021.1943745 ◽

2021 ◽

pp. 1-15

Author(s):

Ilya Binti Joohari ◽

Filippo Giustozzi

Keyword(s):

Crumb Rubber ◽

Hybrid Polymer ◽

Modified Bitumen ◽

Waste Tyres ◽

Polymer Modified Bitumen

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Multiple Stress Creep and Recovery Behavior of SBR-Modified Bitumen Emulsions

Journal of Testing and Evaluation ◽

10.1520/jte20180031 ◽

2018 ◽

Vol 48 (4) ◽

pp. 20180031 ◽

Cited By ~ 1

Author(s):

Mohammad Abedini ◽

Abolfazl Hassani ◽

Mahmoud Reza Kaymanesh ◽

Ali Akbar Yousefi ◽

Hossein Abedini

Keyword(s):

Modified Bitumen ◽

Multiple Stress ◽

Creep And Recovery ◽

Recovery Behavior ◽

Bitumen Emulsions

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

Put i saobraćaj ◽

10.31075/pis.66.03.04 ◽

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.

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Methods of test for petroleum and its products. BS2000-518. Bitumen and bituminous binders. Visualisation of polymer dispersion in polymer modified bitumen

10.3403/02964230u ◽

2015 ◽

Keyword(s):

Polymer Dispersion ◽

Modified Bitumen ◽

Bituminous Binders ◽

Polymer Modified Bitumen

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Multi-Criteria Selection of Additives in Porous Asphalt Mixtures Using Mechanical, Hydraulic, Economic, and Environmental Indicators

Sustainability ◽

10.3390/su13042146 ◽

2021 ◽

Vol 13 (4) ◽

pp. 2146

Author(s):

Anik Gupta ◽

Carlos J. Slebi-Acevedo ◽

Esther Lizasoain-Arteaga ◽

Jorge Rodriguez-Hernandez ◽

Daniel Castro-Fresno

Keyword(s):

Cellulose Fiber ◽

Environmental Indicators ◽

Asphalt Mixtures ◽

Environmental Benefits ◽

Modified Bitumen ◽

Porous Asphalt ◽

Different Types ◽

Product Assessment ◽

Polymer Modified Bitumen ◽

Selection Of

Porous asphalt (PA) mixtures are more environmentally friendly but have lower durability than dense-graded mixtures. Additives can be incorporated into PA mixtures to enhance their mechanical strength; however, they may compromise the hydraulic characteristics, increase the total cost of pavement, and negatively affect the environment. In this paper, PA mixtures were produced with 5 different types of additives including 4 fibers and 1 filler. Their performances were compared with the reference mixtures containing virgin bitumen and polymer-modified bitumen. The performance of all mixes was assessed using: mechanical, hydraulic, economic, and environmental indicators. Then, the Delphi method was applied to compute the relative weights for the parameters in multi-criteria decision-making methods. Evaluation based on distance from average solution (EDAS), technique for order of the preference by similarity to ideal solution (TOPSIS), and weighted aggregated sum product assessment (WASPAS) were employed to rank the additives. According to the results obtained, aramid pulp displayed comparable and, for some parameters such as abrasion resistance, even better performance than polymer-modified bitumen, whereas cellulose fiber demonstrated the best performance regarding sustainability, due to economic and environmental benefits.

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Investigating the influence of carbon nanotube on the performance of asphalt binder

Progress in Rubber Plastics and Recycling Technology ◽

10.1177/14777606211019413 ◽

2021 ◽

pp. 147776062110194

Author(s):

Peerzada Mosir Shah ◽

Mohammad Shafi Mir

Keyword(s):

High Temperature ◽

Asphalt Binder ◽

Storage Condition ◽

Modified Bitumen ◽

Creep And Recovery ◽

Low Viscosity ◽

Temperature Performance ◽

Modified Asphalt Binder ◽

Viscosity Grade ◽

The Impact

The purpose of this study aims at investigating the impact of multi-walled carbon nanotubes (MWCNT’s) on the properties of low viscosity grade asphalt binder. Asphalt binder with viscosity grade-10 is selected as the control binder and later it is modified with different percentages of MWCNT’s (0.5–2.5%). Penetration, softening point, ductility and rotational viscosity test were employed for evaluating the effect of MWCNT’s on basic physical properties of modified asphalt binder. Dynamic Shear Rheometer (DSR) is used for evaluating the rheological properties of the base and modified bitumen, for both aged and unaged bitumen. Based on the conventional and basic rheological tests, it was seen that the addition of MWCNT’s improved the high-temperature performance of modified bitumen. Multiple Stress Creep and Recovery (MSCR) test results revealed that the addition of MWCNT’s improved the creep and recovery of modified binders for both stress intensities (0.1 kPa and 3.2 kPa) which confirms that the modified binder is more rut resistant. Moreover, it was observed that there was a significant improvement in the aging resistance of the asphalt binder due to addition of MWCNTs. However low temperature performance of MWCNTs was not encouraging. Also, MWCNTs addition to asphalt binder was found to be stable under high-temperature storage condition. Overall, there is a significant amount of improvement using MWCNTs in the base asphalt binder.

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