Influence of different high viscosity modifiers on the aging behaviors of SBSMA

Wang, Sheng; Huang, Weidong; Lv, Qi; Yan, Chuanqi; Lin, Peng; Zheng, Min

doi:10.1016/j.conbuildmat.2020.119214

Cited by 12 publications

(6 citation statements)

References 27 publications

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“…This may be because PAAI was affected by asphalt aging and was related to other properties of asphalt (such as glass transition temperature). This phenomenon also indicates that PAAI is not applicable to evaluate the aging sensitivity of asphalt, which agrees with the findings of other researchers [ 25 ]. When the temperature was lower than 64 °C, CMAI showed the best correlation with CAI, and the highest R 2 was 0.912.…”

Section: Resultssupporting

confidence: 91%

“…Then, the rheological properties of the four asphalt binders before and after aging were checked, and the chemical compositions of the asphalt binders were also determined by the FTIR. At last, based on other scholars’ research results [ 25 ], several indicators calculated by the test results were adopted to reflect the aging degree of the different asphalt binders. These indicators are shown in Table 2 .…”

Section: Research Scope and Test Methodsmentioning

confidence: 99%

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Evaluation of the Aging of Styrene-Butadiene-Styrene Modified Asphalt Binder with Different Polymer Additives

Luo

Pei

et al. 2021

Materials

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A wide variety of polymer additives have been widely used in recent years. However, the effect of different polymer additives on the durability of asphalt binders has not been investigated thoroughly. To evaluate the aging property of styrene-butadiene-styrene (SBS) asphalt binder with different polymer additives, three polymer modifiers, namely high modulus modifier (HMM), anti-rutting agent (ARA), and high viscosity modifier (HVM), were added to it. First, the Thin Film Over Test (TFOT) and Pressure Aging Vessel (PAV) was performed on the asphalt binders. The rheological properties of the four asphalt binders before and after aging were then checked by the Dynamic Shear Rheometer Test (DSR). The chemical compositions of the asphalt binders were determined by the Fourier Transform Infrared Spectrometer (FTIR) test. Several aging indicators were adopted to reflect the aging degree of the asphalt binders. The results show that when polymer additives are added to the SBS asphalt binder, the complex modulus, storage modulus, loss modulus, and rutting factor substantially increase and the phase angle decreases. All the test parameters become higher after aging. The phase angle of the SBS asphalt binder is the highest at both unaged and aged states, while its other parameters values are the smallest. Moreover, the Carbonyl Aging Indicator (CAI) of SBS with polymer additives becomes lower under both TFOT and PAV conditions, indicating that polymer additives can improve the aging resistance of SBS asphalt, of which HVM modifies the aging resistance best. Complex Modulus Aging Indicator (CMAI) and Storage Modulus Aging Indicator (SMAI) have the best correlation coefficients with CAI, and the two aging indicators can be used to predict the aging degree of polymer modified asphalt binders.

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Section: Resultssupporting

confidence: 91%

Section: Research Scope and Test Methodsmentioning

confidence: 99%

Evaluation of the Aging of Styrene-Butadiene-Styrene Modified Asphalt Binder with Different Polymer Additives

Luo

Pei

et al. 2021

Materials

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“…Based on ASTM D1754 and ASTM D6521 standards [ASTM D1754 (ASTM 2009); ASTM D6521 (ASTM 2008)], RTFOT was applied for the simulation of short-term thermal oxidation aging of HVMA. In addition, the aging sensitivity of warm-mix HVMA was defined by the variation range of the physical or rheological properties of material before and after aging (Zhang et al 2018), which is given in detail in Table 3 (Wang et al 2020).…”

Section: Aging Proceduresmentioning

confidence: 99%

“…They also found that, even under different aging conditions, EC-120 could improve the rheological properties of the system regardless of the temperature. Wang et al (2020) studied the effects of four asphalt binders on asphalt aging properties. Under the two aging conditions of rolling thin film oven test (RTFOT) and pressure aging vessel, Fourier transform infrared (FTIR) spectroscopy was applied to analyze the variations of carbonyl in asphalt and its results were used to predict the aging degree of asphalt.…”

Section: Introductionmentioning

confidence: 99%

Rheological Properties of High-Viscosity Modified Asphalt Containing Warm-Mix Additives

Chen

Dong

et al. 2023

J. Mater. Civ. Eng.

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High-viscosity modified asphalt (HVMA) is the most commonly applied method in drainage asphalt pavements. However, some disadvantages of hot-mix HVMA, including high energy consumption and unavoidable environmental pollution, should be improved. Therefore, warm-mix additive (WMA) was introduced. In this paper, the effects of WMA on the rheological and microstructural properties of HVMA were studied to select optimum WMA conditions. WMAs mainly include foam warm mix (1%, 3%, and 5%), Sasobit (1%, 3%, and 5%), Evotherm (0.4%, 0.8%, and 1.2%), and the newly introduced warm additive glow brand (GLWBR) (0.4%, 0.8%, and 1.2%). Dynamic shear rheometer (DSR) and bending beam rheometer (BBR) tests were performed on HVMA after rheological processes. Also, microstructural properties were examined by Fourier transform infrared spectroscopy and scanning electron microscopy methods. Based on the obtained results, all WMAs reduced the viscosity (135°C) of HVMA and achieved warm mixing effects. However, absolute viscosity (60°C) was enhanced by Sasobit and GLWBR. In addition, GLWBR improved high-temperature rheological performance and had no significant effect on the low-temperature and aging performance of HVMA. These findings were further verified by morphological observations.

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“…Accordance with AASHTO M 320-14 RTFOT, and PAV were carried out on the TBHB binders. The aging of polymer modified bitumen can cause the generation of the carbonyl group and the change of polymer [25]. The sulfoxide group of the modified bitumen is less stable during aging, so the aging extent of TBHB binders was compared by testing the carbonyl index (I CA ) in this study [26].…”

Section: Atr-ftir Testmentioning

confidence: 99%

Aging Characteristics of Rubber Modified Bitumen Mixed with Sulfur after Terminal Blend Process

et al. 2022

Self Cite

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The influence of sulfur on the chemical, rheological, and aging resistance of terminal blend rubberized bitumen (TBRB) was studied. TB hybrid bitumen (TBHB) was prepared from with different sulfur contents (0.1, 0.2, 0.3, 0.4 wt%) and TBRB prepared with neat bitumen and crumb rubbers at 20% content. TBHB binders were aged by rolling thin film oven test (RTFOT) and pressure aging vessel (PAV), respectively. The chemical composition of TBHB binders was monitored by attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR). Rheological properties of all TBHB samples were tested. Chemical composition results show that TBHB can inhibit the degradation of polybutadiene compared with TBRB in the RTFOT stage, and the polybutadiene degradation is the main process of TBHB in the RTFOT stage, while the TBHB is mainly desulfurized after PAV aging. Meanwhile, the increase in sulfur content in the TBHB can improve the desulfurization degree of the TBHB binder after PAV. TBRB containing sulfur can improve the mechanical properties and elasticity and reduce the hardening degree during aging. Moreover, blending sulfur into the TBRB caused a lower complex modulus aging index after aging, which indicates that TBHB has superior aging resistance.

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Influence of different high viscosity modifiers on the aging behaviors of SBSMA

Cited by 12 publications

References 27 publications

Evaluation of the Aging of Styrene-Butadiene-Styrene Modified Asphalt Binder with Different Polymer Additives

Evaluation of the Aging of Styrene-Butadiene-Styrene Modified Asphalt Binder with Different Polymer Additives

Rheological Properties of High-Viscosity Modified Asphalt Containing Warm-Mix Additives

Aging Characteristics of Rubber Modified Bitumen Mixed with Sulfur after Terminal Blend Process

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