scholarly journals Laboratory Characterization of Asphalt Binders Modified with Styrene Butadiene Rubber (SBR)

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7666
Author(s):  
Navid Hemmati ◽  
Jihyeon Yun ◽  
Mithil Mazumder ◽  
Moon-Sup Lee ◽  
Soon-Jae Lee
Keyword(s):  
Asphalt Binders ◽  
Styrene Butadiene Rubber ◽  
Creep Recovery ◽  
Butadiene Rubber ◽  
Laboratory Assessment ◽  
Rotational Viscometer ◽  
Viscosity Property ◽  
Modified Binders ◽  
Modified Binder ◽  
Styrene Butadiene

The study describes the laboratory assessment (physical and rheological properties) of the binders (PG 64-22 and PG 76-22) modified with Styrene Butadiene Rubber (SBR), and a comprehensive comparison between these two modified binder types. PG 64-22 and PG 76-22 were used as base binders. Both of the base binders were blended with SBR at four different percentages of content (0%, 4%, 6%, and 8% by the weight of the binder). The base and modified binders were artificially short-term and long-term aged using a rolling thin film oven (RTFO) and pressure aging vessel (PAV) procedures. Superpave binder tests were conducted on the SBR modified binder using rotational viscometer (RV), dynamic shear rheometer (DSR), and bending beam rheometer (BBR). In depth rutting performance was investigated using Multiple Stress Creep Recovery (MSCR). The results of this study indicated that (1) the addition of SBR into both binders increased the viscosity and polymer modified asphalt (PMA) binders observed to have more significant effect on its viscosity property; (2) the higher the SBR content, the better the rutting resistance of the binder and it is observed that the effect is prominent on the control binder; (3) MSCR test results showed that the SBR modified binders improved the binder percentage recovery and found to have a more significant effect on the PG 76-22 binder compared to PG 64-22; and (4) both the control PG 64-22 and PMA PG 76-22 binders resulted in similar trends on the cracking properties and were found to have insignificant effects due to the addition of an SBR modifier.

Performance properties of WMA modified binders and asphalt mixtures containing PPA/SBR polymer blends

2021 ◽  
pp. 089270572110064
Author(s):  
Rezvan Babagoli ◽  
Farhang Jalali ◽  
Mohammad Khabooshani
Keyword(s):  
Fatigue Life ◽  
Resilient Modulus ◽  
Fatigue Behavior ◽  
Permanent Deformation ◽  
Asphalt Binders ◽  
Styrene Butadiene Rubber ◽  
Creep Recovery ◽  
Butadiene Rubber ◽  
Performance Properties ◽  
Modified Binders

The performance properties of asphalt binders and mixtures can be enhanced utilizing several modifiers, including; Poly Phosphoric Acid (PPA), Warm Mix Asphalt (WMA) modifiers, and Styrene–Butadiene Rubber (SBR). The current study evaluated the effect of PPA and WMA contents on rheological behavior of SBR modified binders and SMA mixtures. The modified binders were subjected to rotational viscosity, Dynamic Shear Rheometer, and Bending Beam Rheometer, Multiple Stress Creep Recovery (MSCR), and Linear Amplitude Sweep (LAS) tests. The SBR/PPA and SBR/PPA/WMA modified mixtures were subjected to Indirect tensile strength (ITS), dynamic creep, resilient modulus ( Mr), wheel track, and four-point beam fatigue (FPB) tests. To analyze the data, two-factor analysis of variance (ANOVA) was investigated. Based on the results of the MSCR test at both stress levels, modification of base bitumen by SBR, PPA and WMA additives causes an enhance in permanent deformation performance of original bitumen. LAS test results indicated that, utilization of SBR and WMA additives improves the fatigue life of bitumen. Also, by addition of PPA, the fatigue life of SBR modified binders increases. whereas, the fatigue lives are higher than original binders ones. Based on results, utilization of SBR and PPA enhances the Mr, rutting properties, ITS, FE, and fatigue behavior of specimens. By increasing the PPA percentage, the rutting and fatigue behavior enhances. Whereas, it causes a decreases in Mr and ITS of modified mixtures. Among warm additives, sasobit has better effect on enhancing the performance of binders and mixtures.

The effect of styrene-butadiene rubber modification on the properties of asphalt binders: Aging and restoring

2022 ◽  
Vol 316 ◽  
pp. 126034
Author(s):  
Tiankai Che ◽  
Baofeng Pan ◽  
Yudong Li ◽  
Dongdong Ge ◽  
Dongzhao Jin ◽  
...  
Keyword(s):  
Asphalt Binders ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Styrene Butadiene ◽  
Rubber Modification

scholarly journals Experimental Investigation on the Use of Waste Elastomeric Polymers for Bitumen Modification

2020 ◽  
Vol 10 (8) ◽  
pp. 2671
Author(s):  
Sadegh Yeganeh ◽  
Mahmoud Ameri ◽  
Davide Dalmazzo ◽  
Ezio Santagata
Keyword(s):  
Permanent Deformation ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Waste Products ◽  
Expected Performance ◽  
Polybutadiene Rubber ◽  
Modified Binders ◽  
Experimental Findings ◽  
Styrene Butadiene ◽  
Bitumen Modification

The study described in this paper focused on the possible use of waste products coming from the production of styrene–butadiene rubber (SBR) and polybutadiene rubber (PBR), as bitumen modifiers. Modified binders containing these products were prepared in the laboratory with different polymer dosages and were thereafter subjected to the evaluation of empirical and rheological properties. For comparative purposes, the study also considered SBR and PBR products of premium quality. Ageing effects were also taken into account by means of proper laboratory simulations. Obtained results indicated that the two types of polymer (SBR and PBR) have completely different effects on the rheology and expected performance of the resulting modified binders. In particular, while the two polymers showed similar effects in terms of resistance to permanent deformation, the SBR products proved to be superior from the viewpoint of fatigue resistance. However, only minor differences were found when comparing the effects produced by premium quality and waste polymers. As a result of the experimental findings, it was concluded that the use of waste SBR polymers can be an attractive solution for the production of affordable modified binders.

scholarly journals Evaluation of High-Performance Asphalt Binders Modified with SBS, SIS, and GTR

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Hyun Hwan Kim ◽  
Mithil Mazumder ◽  
Moon-Sup Lee ◽  
Soon-Jae Lee
Keyword(s):  
High Performance ◽  
Asphalt Binder ◽  
Microstructural Analysis ◽  
Asphalt Binders ◽  
Creep Recovery ◽  
Rotational Viscometer ◽  
Modified Asphalt ◽  
Modified Asphalt Binder ◽  
Polymer Modified Asphalt ◽  
Styrene Butadiene

In this study, performance properties of polymer-modified asphalt (PMA) binders are evaluated depending on ground tire rubber (GTR) and styrene-isoprene-styrene (SIS). Styrene-butadiene-styrene- (SBS-) modified asphalt binder of PG 76-22 is used as a base binder to manufacture the rubberized PMA binder. The rubberized PMA binders are blended using SIS modifier. The binders were artificially short-term and long-term aged using rolling thin-film oven (RTFO) and pressure aging vessel (PAV) procedures. Superpave binder tests were conducted on the binders through rotational viscometer (RV), dynamic shear rheometer (DSR), and bending beam rheometer (BBR). Furthermore, multiple stress creep recovery (MSCR) test and atomic force microscopy (AFM) microstructural analysis were performed. The results of this study indicated that (1) the viscosity properties seem to be highly dependent on GTR and SIS contents, (2) the addition of SIS is observed to have a significant effect on improving the rutting performances of rubberized PMA binders, (3) the cracking properties are considered to be improved significantly through SIS modification, and (4) in general, the rubberized PMA binders with SIS showed the best performance for rutting and cracking among all the binders used in this study.

Statistical Analyses of Aggregate Mineral–Binder Adhesion: Measuring with Particle Probe Scanning Force Microscopes

2017 ◽  
Vol 2632 (1) ◽  
pp. 25-31 ◽  
Author(s):  
Yujie Li ◽  
Jie Yang ◽  
Ting Tan
Keyword(s):  
Statistical Analyses ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Modified Binders ◽  
Unit Surface ◽  
Average Unit ◽  
Scanning Force ◽  
Styrene Butadiene ◽  
Mineral Binder ◽  
Butadiene Styrene

Aggregate–binder adhesion is critical to the performance of asphalt mixtures. Recently, particle probe scanning force microscopes were created to measure the adhesion between aggregate minerals and various plain and modified binders at the microscale. In this study, statistical analyses were performed to evaluate comprehensively the effects of different factors on the aggregate–binder adhesion, including aggregate constituents, binder types, and modifier types. Average unit surface energy values were used to quantify the adhesion between aggregate minerals and various binders. Results showed that the alumina–binder pairs exhibited the greatest adhesion. For the control binder, the adhesion values increased as the weight percentages of styrene–butadiene–styrene, styrene–butadiene–rubber, and polyphosphoric acid increased. Adhesion differences between aggregate minerals and various plain and modified binders were observed by using particle probe scanning force microscopes.

RHEOLOGICAL PROPERTIES OF STYRENE BUTADIENE RUBBER MODIFIED BITUMEN BINDER

2016 ◽  
Vol 78 (7-2) ◽  
Author(s):  
Haryati Yaacob ◽  
Moazzam Ali Mughal ◽  
Ramadhansyah Putra Jaya ◽  
Mohd Rosli Hainin ◽  
Dewi Sri Jayanti ◽  
...  
Keyword(s):  
Shear Modulus ◽  
Rheological Properties ◽  
Great Influence ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Complex Shear Modulus ◽  
Modified Bitumen ◽  
Rotational Viscometer ◽  
Complex Shear ◽  
Styrene Butadiene

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.

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

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.

scholarly journals Performance and Mechanism of Asphalt Modified by Buton-Rock Asphalt and Different Types of Styrene-Butadiene-Rubber

2020 ◽  
Vol 10 (9) ◽  
pp. 3077
Author(s):  
Fangting Qu ◽  
Songtao Lv ◽  
Junfeng Gao ◽  
Chaochao Liu
Keyword(s):  
Negative Influence ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Mechanism Analysis ◽  
Short Term ◽  
Rotational Viscometer ◽  
Modified Asphalt ◽  
Dispersion State ◽  
Aging Property ◽  
Styrene Butadiene

In this paper, two types of Styrene-Butadiene-Rubber (SBR) were adopted to modify the Buton-rock asphalt (BRA) modified asphalt, aiming to select a binder with excellent comprehensive performances. Powder SBR and latex SBR (0%, 2%, 4%, 6%, and 8%), were mixed with the 15 w% BRA modified asphalt. The characterization of rheological properties included dynamic shear rheometer, rotational viscometer, and bending beam rheometer test. The short-term aging performance was characterized by the ratio of the complex shear modulus from the un-aged and rolling thin film oven (RTFOT) -aged asphalt. Besides, Fourier transform infrared spectroscopy and scanning electron microscopy were conducted to reveal the modification mechanism. It was observed that the two kinds of BRA-SBR modified asphalt had preferable anti-crack capacity at low temperatures than the BRA modified asphalt. Compared with latex SBR, the powder SBR significantly improved the high-temperature performance, and the anti-aging capacity was stable. However, some negative influence occurred by the addition of latex SBR on the anti-rutting and short-term aging property. According to the micro-mechanism analysis, adding powder SBR and latex SBR into BRA modified asphalt was a physical blending process, and they improved the dispersion state of BRA in asphalt. Based on the comprehensive performance, the recommended combination was BRA and powder SBR.

Effects of anti-striping agents on performance of binder and stone matrix asphalt (SMA) mixtures containing polyphosphoric acid/styrene-butadiene rubber composite polymer blends and warm mixture additives

2020 ◽  
pp. 089270572098234
Author(s):  
Alireza Ameli ◽  
Ali Foroutan Naeini ◽  
Rezvan Babagoli ◽  
Ali Akbari
Keyword(s):  
Fatigue Life ◽  
Resilient Modulus ◽  
Styrene Butadiene Rubber ◽  
Creep Recovery ◽  
Butadiene Rubber ◽  
Dynamic Creep ◽  
Warm Mix Additives ◽  
Rotational Viscosity ◽  
Styrene Butadiene ◽  
Performance Behavior

This work evaluated the effect of Anti-Stripping Agents (ASAs) on performance behavior of bitumen and high and intermediate temperature performance of SMA mixtures modified by Poly Phosphoric Acid (PPA), Warm Mix Asphalt (WMA) and Styrene-Butadiene Rubber (SBR) additive. Through this paper, the AC-60/70 and AC-85/100 penetration grade bitumens were used as base bitumen. Moreover, three liquid ASAs (ASA (1), ASA (2), ASA (3)), PPA (1% by weight of bitumen), SBR (2% by weight of binder), and two types of warm mix additives (3% Sasobit and 0.3% Zycotherm) were used as a mixture modifier. For evaluating the performance behavior of bitumen, the rotational viscosity, Dynamic Shear Rheometer, and Bending Beam Rheometer, Multiple Stress Creep Recovery (MSCR), and linear Amplitude Sweep (LAS) tests were implemented. Moreover, Resilient Modulus (Mr), Indirect Tensile Strength (ITS), dynamic creep, wheel track, and Four-Point Beam Fatigue (FPB) tests were performed to investigate the performance of mixture samples. Based on the outcomes of the MSCR test, the utilization of SBR/PPA additive and ASAs decreased the Jnr value. Among modified binders, the binders modified by ASA (2) have the lowest Jnr value followed by binders modified by ASA (1) and ASA (3). According to the outcomes of LAS test, the utilization of ASAs leads to increase in the fatigue life of the original binder. According to the outcomes, the utilization of WMA additives and ASAs caused the Mr, ITS, rutting resistance, and fatigue life to increase. Among ASAs, the ASA (2) has the greatest influence on enhancing the performance of mixtures. Based on results, Sasobit additive has a better effect than Zycotherm on enhancing the properties of samples.

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