RHEOLOGICAL PROPERTIES OF STYRENE BUTADIENE RUBBER MODIFIED BITUMEN BINDER

The study investigates the rheological properties of bitumen of 60-70 penetration grade modified with Styrene Butadiene Rubber (SBR). SBR is an elastomer which is an important sort of synthetic rubber. It is a copolymer whose molecular structure primarily consists of organic compound styrene and butadiene chain. Bitumen is visco-elastic in nature. The rate of load application and temperature has a great influence on its performance. Various fundamental properties of bitumen were evaluated, namely complex shear modulus (G*), short-term ageing, long-term ageing, viscosity, penetration and softening point by using Dynamic Shear Rheometer (DSR), Rolling Thin Film Oven Test (RTFOT), Pressure Aging Vessel (PAV), Rotational Viscometer (RV), Penetrometer and Ring and Ball Test, respectively. The binders were mixed with varying percentage of SBR i.e. 0, 1, 2, 3, 4, and 5% by the weight of bitumen binder. The use of SBR has played an active role in improving the viscoelastic properties of bitumen. The use of SBR modifier changes the rheological behavior of bitumen by increasing its complex shear modulus (G*) and the resistance of mixture against permanent deformation (rutting). It was also found that increasing the content of SBR led to the increase in viscosity of modified bitumen, which helps in elevating the mixing and compaction temperature of asphalt mixtures.

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Rheological Characterization and Mechanical Behavior of Polymer Powder Modified-Cement Pastes and Wollastonite Fibers Reinforced Cement Pastes

Volume 6: Materials Technology; Polar and Arctic Sciences and Technology; Petroleum Technology Symposium ◽

10.1115/omae2012-84208 ◽

2012 ◽

Author(s):

Fabrício de C. Vitorino ◽

Romildo D. Toledo Filho

Keyword(s):

Rheological Properties ◽

Coaxial Cylinder ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Rheological Characterization ◽

Rotational Viscometer ◽

Cement Pastes ◽

Polymer Powder ◽

Reinforced Cement ◽

Styrene Butadiene

In the design of oil wells subjected to temperature variations and imposed deformations, the fracture toughness of the cement pastes is a very important property. In order to obtain higher toughness values and adequate rheological properties, cement pastes modified by polymer and reinforced by wollastonite microfibers were developed and studied. In the present case, the redispersible polymer powder used was the styrene-butadiene rubber (SBR). The pastes were mechanically characterized by the evaluation of compressive strength, Young’s modulus, Poisson’s ratio and strain capacity. The rheological properties, such as plastic viscosity, yield point and gel strength, were obtained in a Couette coaxial cylinder rotational viscometer.

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Measurement of G* in Fine Asphalt Mixes

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/2507-05 ◽

2015 ◽

Vol 2507 (1) ◽

pp. 39-49

Author(s):

Fabiola Miranda-Argüello ◽

Luis Loria-Salazar ◽

José P. Aguiar-Moya ◽

Paulina Leiva-Padilla

Keyword(s):

Shear Modulus ◽

Shear Loading ◽

Asphalt Mixtures ◽

Styrene Butadiene Rubber ◽

Specimen Preparation ◽

Butadiene Rubber ◽

Master Curves ◽

Complex Shear Modulus ◽

Test Configuration ◽

Complex Shear

This study characterized the mechanical properties in fine asphalt mixtures by means of a microscale test. The method involved the design of the fine asphalt matrix, the specimen preparation, the performance of shear tests, and the construction of complex shear modulus master curves based on the obtained results. The tests were performed with a device called a dynamic mechanical analyzer (DMA). The test configuration consisted of a temperature and frequency sweep for a given strain level, within the linear viscoelastic range of the material. The test implementation experimental design involved the use of two aggregate sources and three asphalt types (neat, styrene–butadiene rubber modified, and ethylene copolymer modified). On the basis of the results for the mixes, master curves were calibrated by sigmoidal, Christensen–Anderson, and Christensen–Anderson–Marasteanu general models and using Arrhenius and William–Landel–Ferry shift factors. As part of the study, the DMA test based on shear loading mode was successfully implemented and allowed for measurement of a fundamental material property: complex shear modulus ( G*). The G* estimation involved measurement of shear stress, strain, and phase angles. Complex shear moduli in the range of 40 to 170 MPa were obtained; the fine asphalt mixtures modified with ethylene block copolymer developed higher stiffness, and the ones with neat binder had lower stiffness. From the G* results, master curves were developed. A higher fit was obtained when the general sigmoidal formula was used; this result indicated the high degree of similitude in behavior between the fine asphalt matrix and the complete hot-mix asphalt mixtures.

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Preferential Media for Abrasive Flow Machining

Journal of Manufacturing Science and Engineering ◽

10.1115/1.3046135 ◽

2009 ◽

Vol 131 (1) ◽

Cited By ~ 19

Author(s):

Kamal K. Kar ◽

N. L. Ravikumar ◽

Piyushkumar B. Tailor ◽

J. Ramkumar ◽

D. Sathiyamoorthy

Keyword(s):

Rheological Properties ◽

Testing Machine ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Abrasive Flow Machining ◽

Wide Range ◽

Good Improvement ◽

Temperature Shear ◽

Styrene Butadiene ◽

Surface Improvement

The abrasive flow machining (AFM) is used to deburr, radius, polish and remove recast layer of components in a wide range of applications. Material is removed from the workpiece by a flowing semisolid mass across the surface to be finished. In this study a medium for AFM has been developed from the various viscoelastic carriers and has been contrasted through experimental investigation. The viscoelastic media are selected on the basis of existing media through the studies of thermogravimetric analysis and are characterized by mechanical, as well as rheological, properties with the help of a universal testing machine and a rheometer. The performance of the medium is evaluated through the finishing criteria on a two-way AFM setup. The investigation reveals that the styrene butadiene rubber (SBR) medium gives a good improvement in surface finish. The surface improvement through SBR media is 88%. It is also found that the strain, temperature, shear rate, time of applied constant stress, cyclic loading, etc. have an impact on the mechanical and rheological properties of the newly developed medium, which are ultimately governed by the performance of the medium in the target applications.

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Evaluation of Rheological Characteristics of Graphite Modified Bitumen

Journal of Civil Engineering and Urbanism ◽

10.54203/jceu.2021.7 ◽

2021 ◽

Vol 11 ◽

pp. 51-57

Author(s):

Odunayo Olayemi Oladunjoye ◽

Olugbenga Joseph Oyedepo ◽

Ebenezer Omoniyi Olukanni ◽

Sombo Philiph Akande

Keyword(s):

Shear Modulus ◽

Phase Angle ◽

Dynamic Viscosity ◽

Loss Modulus ◽

Rheological Parameters ◽

Dynamic Shear ◽

Complex Shear Modulus ◽

Modified Bitumen ◽

Dynamic Shear Rheometer ◽

Complex Shear

The level of performance of asphalt concrete has a close relationship with the properties of bitumen used. This research evaluates the rheological parameters of graphite modified bitumen. Index properties tests were conducted on bitumen and graphite to determine their suitability. Dynamic viscosity and dynamic shear rheometer were conducted on bituminous binder modified with four different proportion of graphite ranging from 2% to 10% by bitumen weight. Dynamic viscosity test was conducted on bitumen and graphite modified bitumen at temperature of 1350C and 1650C using Brookfield Viscometer. The rheological properties are centered on phase angle (δ) and complex shear modulus (G*) which were determined on bitumen and graphite modified bitumen at temperature ranging from 520C – 700C at 10 rad/s frequency using Dynamic Shear Rheometer in accordance with ASTM D7175-15. The storage modulus (G'), loss modulus (G") and rutting parameters were then evaluated from phase angle and complex shear modulus. The bitumen and graphite modified bitumen showed that graphite modified bitumen has the highest complex shear modulus and rutting parameter of 8984 (kPa) and 33387 (kPa) at 10% graphite content. The results of viscosity helped to determine the mixing and compaction temperatures. Dynamic shear rheometer test results determined the elastic and viscous behaviour at various temperature. The higher the complex shear modulus and rutting parameter the stiffer the binder will resist deformation and rutting.

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EFFECT OF STYRENE-BUTADIENE ON RHEOLOGICAL PROPERTIES OF ASPHALT EMULSION

Jurnal Teknologi ◽

10.11113/jt.v77.6678 ◽

2015 ◽

Vol 77 (23) ◽

Author(s):

M. Naqiuddin M. Warid ◽

Mohd Rosli Hainin ◽

Haryati Yaacob ◽

Md. Maniruzzaman A. Aziz ◽

Mohd Khairul Idham ◽

...

Keyword(s):

Rheological Properties ◽

Complex Modulus ◽

Viscosity Reduction ◽

Curing Time ◽

Complex Shear Modulus ◽

Asphalt Emulsion ◽

Modified Asphalt ◽

Complex Shear ◽

Styrene Butadiene ◽

Rheometer Test

One of the main issues with cold mix asphalt (CMA) mixtures is having poor abrasion resistance with low cohesion, longer curing time and low elasticity. SBR is used to improve the rheological properties of the asphalt emulsion. This paper evaluates the effect of using different percentages of SBR in unaged slow-setting emulsion (SS-1K) in CMA. These modified emulsions were blended at various percentages, i.e. 2%, 4%, 6%, 8% and 10% of the weight of asphalt emulsion. The investigation focused on the rheological aspect which correlates the properties of unaged modified asphalt emulsion with its performance. Dynamic Shear Rheometer test (DSR) was used to measure the parameters of complex shear modulus, G* and phase angle, δ of the asphalt samples. Based on the results, it shows that by adding SBR in the asphalt emulsion improve the rutting resistance. From the isochronal curve, the complex modulus, G* of the modified emulsions was found higher than the unmodified emulsion. The modified emulsions show signs of improvement in binder properties in terms of elastic deformation and viscosity reduction. Therefore, it can be concluded that the SBR could improve the performance of the asphalt emulsion used in CMA.

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The effects of furnace carbon blacks on the mechanical and the rheological properties of SBR1502 styrene butadiene rubber

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2006.01.002 ◽

2007 ◽

Vol 28 (4) ◽

pp. 1326-1329 ◽

Cited By ~ 10

Author(s):

Enver Demirhan ◽

Fatma Kandemirli ◽

Mithat Kandemirli

Keyword(s):

Rheological Properties ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Carbon Blacks ◽

Styrene Butadiene

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Rheological properties of styrene–butadiene rubber filled with electron beam modified surface treated dual phase fillers

Radiation Physics and Chemistry ◽

10.1016/s0969-806x(03)00331-1 ◽

2004 ◽

Vol 69 (1) ◽

pp. 91-98 ◽

Cited By ~ 15

Author(s):

A.M Shanmugharaj ◽

Anil K Bhowmick

Keyword(s):

Electron Beam ◽

Rheological Properties ◽

Styrene Butadiene Rubber ◽

Dual Phase ◽

Butadiene Rubber ◽

Modified Surface ◽

Styrene Butadiene

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Evaluation of Chicken Feather and Styrene-Butadiene/Chicken Feather Composites as Modifier for Asphalts Binder

Applied Sciences ◽

10.3390/app9235188 ◽

2019 ◽

Vol 9 (23) ◽

pp. 5188 ◽

Cited By ~ 2

Author(s):

Leslie Mariella Colunga-Sánchez ◽

Beatriz Adriana Salazar-Cruz ◽

José Luis Rivera-Armenta ◽

Ana Beatriz Morales-Cepeda ◽

Claudia Esmeralda Ramos-Gálvan ◽

...

Keyword(s):

Phase Separation ◽

Rheological Properties ◽

Asphalt Binder ◽

Waste Product ◽

Rubber Matrix ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Chicken Feather ◽

Main Component ◽

Styrene Butadiene

In the present work, the evaluation of chicken feather particles (CFP) and styrene-butadiene/chicken feather (SBS-CF) composites as modifiers for asphalt binder is presented. It is well known that elastomers are the best asphalt modifiers, because their thermoplastic behavior assists asphalts in improving the range of their mechanical properties at both low and high temperatures. Nowadays, the use of natural products and byproducts as fillers for polymer matrices has been a matter of research, and the field of asphalt modification is not the exception. Chicken feather particles (CFP) is a waste material whose main component is keratin, which offers remarkable properties. In the present work, CFP was used as a filler of a styrene-butadiene rubber matrix (SBS) with radial structure, to obtain a composite intended as an asphalt modifier. Besides, raw CFP was also tested as an asphalt modifier. Physical, thermal and rheological properties of the modified asphalts were evaluated in order to determine their degree of modification with respect to the original asphalt. The results show that the addition of raw CFP improves some physical properties as penetration and decreases the phase separation; furthermore, the asphalt modified with CFP displayed similar rheological properties to those shown by the asphalt modified with SBS, while some other properties resulted in being even better, like the phase separation, with the advantage that the CFP comes from a natural waste product.

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