Investigation of aging behavior of terminal blend rubberized asphalt with SBS polymer

Wang, Sheng; Huang, Weidong

doi:10.1016/j.conbuildmat.2020.120870

Cited by 44 publications

(15 citation statements)

References 32 publications

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“…The change rate of dissipated energy (DERC) is the ratio of dissipated energy generated in two adjacent loading cycles to that generated in the previous cycle. It is calculated by Equation (5). According to the relationship between the change rate of dissipated energy and the loading cycles, the curve of the change rate of dissipated energy could be divided into three stages, namely, rapid descent stage, stable stage and rapid growth stage.…”

Section: Test Index Based On the Change Rate Of Dissipated Energymentioning

confidence: 99%

“…Presently, owing to increases in traffic volume and the number of heavy vehicles, pavement materials are required to have more strength and durability during the service time because there are more threats to the pavement [1,2]. Under this condition, the fatigue performance or the deformation of the asphalt mixtures caused by fatigue damage are the important factors needed to be considered in the engineering practice [3][4][5]. Several measures were adopted to enhance the performance of the pavement [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Investigation on Fatigue Performance of Asphalt Mixture Reinforced by Basalt Fiber

Lou

Zhang

2021

Materials

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Basalt fiber has been widely used in asphalt mixture due to its excellent mechanical properties and good combination with asphalt. In order to systematically evaluate the enhancement effect of basalt fiber on the fatigue performance of the mixtures, gradations of Stone Mastic Asphalt and Superpave with different nominal maximum aggregate sizes, namely SMA-13, SUP-20 and SUP-25, were prepared, and a four-point bending beam fatigue test was adopted under the strain control mode. The fatigue damage mode was assessed based on the phenomenology theory, energy dissipation theory and change rate of dissipated energy. The results showed that basalt fiber could well increase the fatigue life of the mixtures. Basalt fiber could also increase the cumulative dissipated energy of the mixtures, and it was linearly correlated with the fatigue life in double logarithmic coordinates. In the meantime, adding basalt fiber could increase the change rate of dissipated energy of the mixtures. Furthermore, it is not appropriate to take the stiffness modulus declined to 50% of the original as the fatigue failure criterion of the mixture; this paper suggested that it is reasonable when the stiffness modulus was 15–25% that of the initial. These findings provide a theoretical basis for exploring the fatigue failure of asphalt pavements.

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Section: Test Index Based On the Change Rate Of Dissipated Energymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation on Fatigue Performance of Asphalt Mixture Reinforced by Basalt Fiber

Lou

Zhang

2021

Materials

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“…At present, the main method to enhance asphalt properties is to modify asphalt. There are various kinds of additives, such as polymers [ 5 , 6 , 7 ], silica gel [ 8 ], carbon black [ 9 ], carbon nanotube [ 10 ], resin [ 11 ], polyphosphoric acid [ 12 ], wax [ 13 ], etc., to modify asphalt according to different needs. Due to the international conscience of society that a more sustainable development is needed, more efficient management of the waste products is being conducted [ 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Black on Rutting and Fatigue Performance of Asphalt

Zhong

Fan

et al. 2021

Materials

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As an additive to improve the performance of asphalt binder, tire pyrolysis carbon black is gradually being used in road engineering, but the effect of carbon black (CB) with different particle sizes on asphalt modification remains to be further studied. In this study, three kinds of particle sizes and three kinds of contents of CB were used to modify asphalt, and different tests were conducted to research the high temperature performance and fatigue resistance of carbon black modified asphalt binder. It is found that the addition of CB can enhance the rutting resistance and medium temperature fatigue performance of virgin asphalt binder in general. However, for CB of 270 μm and 2.6 μm, its addition under certain contents lead to the decrease of high temperature performance and fatigue performance of the asphalt binder. For aged asphalt, the addition of CB decreases the rutting resistance and improves the fatigue resistance. The recommended content and particle size of CB are 2% and 2.6 μm. This study refines the complex effects of CB on asphalt properties, providing a reference for determining the size and content of CB in asphalt modification.

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“…[ 1 , 2 , 3 ]. The cracks on the pavement could induce the stress concentration phenomenon in the asphalt mixtures [ 4 , 5 , 6 ], which could accelerate the destruction of the pavement structure, and impose a severe impact on the driving experience [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Fiber Diameter on Crack Resistance of Asphalt Mixtures Reinforced by Basalt Fibers Based on Digital Image Correlation Technology

et al. 2021

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It is now more popular to use basalt fibers in the engineering programs to reinforce the crack resistance of asphalt mixtures. However, research concerning the impact of the basalt fiber diameter on the macro performance of AC-13 mixtures is very limited. Therefore, in this paper, basalt fibers with three diameters, including 7, 13 and 25 μm, were selected to research the influences of fiber diameter on the crack resistance of asphalt mixtures. Different types of crack tests, such as the low temperature trabecular bending test (LTTB), the indirect tensile asphalt cracking test (IDEAL-CT), and the semi-circular bend test (SCB), were conducted to reveal the crack resistance of AC-13 mixtures. The entire cracking process was recorded through the digital image correlation (DIC) technique, and the displacement cloud pictures, strain, average crack propagation rate (V) and fracture toughness (FT) indicators were used to evaluate the crack inhibition action of the fiber diameter on the mixture. The results showed that the incorporation of basalt fiber substantially improved the crack resistance, slowed down the increase of the displacement, and delayed the fracture time. Basalt fiber with a diameter of 7 μm presented the best enhancement capability on the crack resistance of the AC-13 mixture. The flexibility index (FI) of the SCB test showed a good correlation with V and FT values of DIC test results, respectively. These findings provide theoretical advice for the popularization and engineering application of basalt fibers in asphalt pavement.

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Investigation of aging behavior of terminal blend rubberized asphalt with SBS polymer

Cited by 44 publications

References 32 publications

Investigation on Fatigue Performance of Asphalt Mixture Reinforced by Basalt Fiber

Investigation on Fatigue Performance of Asphalt Mixture Reinforced by Basalt Fiber

Effect of Carbon Black on Rutting and Fatigue Performance of Asphalt

Effects of Fiber Diameter on Crack Resistance of Asphalt Mixtures Reinforced by Basalt Fibers Based on Digital Image Correlation Technology

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