Characterizing SBS modified asphalt with sulfur using multiple stress creep recovery test

Huang, Weidong; Tang, Naipeng

doi:10.1016/j.conbuildmat.2015.06.041

Cited by 109 publications

(31 citation statements)

References 12 publications

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“…The result showed the effect of increasing SBS content was more prominent for binders at lower SBS content. MSCR test failed to distinguish 5.0% and 5.5% SBS-modified asphalt in the study [6]. conducted three points bending test and deformations test to evaluate the low-temperature performance and fatigue resistance of recycled SBS-modified asphalt mixture.…”

Section: Introductionmentioning

confidence: 96%

“…The results showed that both the variables of loading frequency and temperature had significant effects on the permanent strains of both the dry and wet asphalt mixtures [5]. Huang (2015) used multiple stress creep recovery (MSCR) test to investigate the effect of cross-linking agent and SBS content on SBS-modified asphalt. The result showed the effect of increasing SBS content was more prominent for binders at lower SBS content.…”

Section: Introductionmentioning

confidence: 99%

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Performance Test on Styrene-Butadiene-Styrene (SBS) Modified Asphalt Based on the Different Evaluation Methods

et al. 2019

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To uniform the evaluation indicators of Styrene-Butadiene-Styrene (SBS) modified asphalt, the SK70# and SK90# matrix asphalt were modified by different SBS modifier dosage in this study. The test methods in China and Superpave were used to test the performance of each SBS-modified asphalt respectively, from which the appropriate evaluation index of SBS-modified asphalt was determined. The results showed that the addition of SBS modifier improved the high temperature performance and lowered the temperature sensitivity of asphalt binder, while it increased the viscosity of asphalt binder in high temperatures. Due to the variability that appeared in the results of the penetration test by the swelling of SBS-modified asphalt, the penetration test was not recommended to evaluate the performances of SBS-modified asphalt. The softening point of SBS-modified asphalt with the modifier dosages of 4.5%, 5%, 5.5% and 6% increased 5.7%, 12.8%, 22.5% and 26.4% respectively compared to the matrix asphalt for SK70# matrix asphalt, and increased 21.2%, 26.3%, 33.6% and 46.6% respectively compared to the matrix asphalt for SK90# matrix asphalt. The effect of SBS-modifier on the softening point of SK90# matrix asphalt is significantly better than that of SK70# matrix asphalt. The improvement effect of SBS modifier on low temperature performance of matrix asphalt decreased with a decrease in test temperature. When studying the influence of the SBS modifier on the low temperature performance of asphalt binder, it was recommended to use the bending beam rheometer (BBR) test to evaluate the low temperature performance of SBS-modified asphalt. Appl. Sci. 2019, 9, 467 157 3.2. Test Result of Superpave Method for SBS Modified Asphalt158 3.2.1. Dynamic Shear Rheological (DSR) Test 159The anti-rutting factor G*/sinδ of SBS modified asphalt was tested to study the anti-rutting 160 performance of SBS modified asphalt at the temperature of 45 °C,50 °C ,55 °C ,60 °C, 65 °C and 70 °C 161 respectively. The larger the G*/sinδ, the better the high-temperature performance of asphalt, which 162 means the high-temperature rutting resistance is better [16]. The modifier dosages were 4.5%, 5%， 163 5.5% and 6%, and the matrix asphalt was SK90# asphalt binder. The test results are shown in Figure 164 4. 165 166

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Performance Test on Styrene-Butadiene-Styrene (SBS) Modified Asphalt Based on the Different Evaluation Methods

et al. 2019

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“…As a triblock copolymer, styrene-butadiene-styrene (SBS) is the most popular polymer used for modifying asphalt, which is of great significance for improving the toughness of asphalt pavement against rutting deformation and cracking in high and low temperatures, respectively. Additionally, it also enables the improvement of antifatigue and antiaging features of the pavement [1][2][3]. It has been found that the properties of the modified asphalt are related to the amount of SBS, considering that it has a close relation with the microstructure of the SBS-modified asphalt [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

SBS Content Detection for Modified Asphalt Using Deep Neural Network

Wang¹,

Zhang

et al. 2020

Advances in Materials Science and Engineering

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This study proposes a prediction model for accurately detecting styrene-butadiene-styrene (SBS) content in modified asphalt using the deep neural network (DNN). Traditional methods used for evaluating the SBS content are inaccurate and complicated because they are prone to produce errors by manual computation. Feature data of SBS content are derived from the spectra, which are obtained by the Fourier-transform infrared spectroscopy test. After designing DNN, preprocessed feature data are utilized as training and testing data and are fed into the DNN via a feature matrix. Furthermore, comparative studies are conducted to verify the accuracy of the proposed model. Results show that the mean square error value decreased by 68% for DNN with noise and dimension reduction. The DNN-based prediction model showed that the correlation coefficient between the target value and the mean predicted value is 0.9978 and 0.9992 for training and testing samples, respectively, indicating its remarkable accuracy and applicability after training. In comparison with the standard curve method and the random forest method, the precision of DNN is greater than 98% for the same test conditions, achieving the best predicting performance.

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“…Therefore, more and more modifiers and reinforced materials are used to improve the performance of neat asphalt mixtures, such as styrene-butadiene-styrene (SBS), diatomite, and basalt fibers. Some researchers have pointed out that the basalt fibers and diatomite reinforced asphalt mixture (DBFAM), as well as SBS modified asphalt mixture (SBSAM), have excellent mechanical properties [2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, SBS, as an organic modifier, is often used to improve the engineering performance of asphalt mixtures. Some studies indicated that the SBS modifier could significantly reinforce the cracking resistance and the rutting resistance of asphalt and asphalt mixtures, and reduce the temperature and moisture susceptibility of asphalt and asphalt mixtures [6,7,[9][10][11][12]21]. Swamy et al [22] investigated the viscoelastic properties of SBS modified asphalt binder using the Burgers model, and the results showed that the addition of SBS could improve the viscoelastic properties of the binder.…”

Section: Introductionmentioning

confidence: 99%

Viscoelastic Properties of Asphalt Mixtures with Different Modifiers at Different Temperatures Based on Static Creep Tests

Cheng

et al. 2019

Applied Sciences

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To obtain the viscoelastic parameters of asphalt mixtures and analyze the effect of temperatures and modifiers on viscoelastic properties of asphalt mixtures, the creep compliances of the neat asphalt mixture (AM), compound diatomite and basalt fibers reinforced asphalt mixture (DBFAM), and styrene-butadiene-styrene modified asphalt mixture (SBSAM) were tested and calculated by the static creep tests. And the creep compliances of the three asphalt mixtures at −20 °C, −10 °C, and 0 °C are deducted by the time–temperature equivalence principle (TTEP) and Arrhenius equation. Further, the relaxation modulus of the three asphalt mixtures from −20 °C to 50 °C at 10 °C increments are calculated by the convolution integral and Simpson method. Subsequently, the Burgers model, the generalized Kelvin model, and the generalized Maxwell model are applied to analyze the viscoelastic properties of the three asphalt mixtures at different temperatures. The results show that the generalized Kelvin model and the generalized Maxwell model are superior to the Burgers model in describing the variation of viscoelastic properties of asphalt mixtures with loading time. At low temperatures, asphalt mixtures have excellent properties in resisting permanent deformation and releasing internal stress. Besides, the addition of SBS modifier and compound diatomite and basalt fibers modifier can significantly raise the viscosity η1 and the elastic modulus E1 of the asphalt mixture, respectively.

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Characterizing SBS modified asphalt with sulfur using multiple stress creep recovery test

Cited by 109 publications

References 12 publications

Performance Test on Styrene-Butadiene-Styrene (SBS) Modified Asphalt Based on the Different Evaluation Methods

Performance Test on Styrene-Butadiene-Styrene (SBS) Modified Asphalt Based on the Different Evaluation Methods

SBS Content Detection for Modified Asphalt Using Deep Neural Network

Viscoelastic Properties of Asphalt Mixtures with Different Modifiers at Different Temperatures Based on Static Creep Tests

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