An investigation on the effect of SBS+Vacuum bottoms residue modification on rheological characteristics of asphalt binder

Nejad, Fereidoon Moghadas; Mahdi, Shahabi; Rahi, Mohammad; Hajikarimi, Pouria; Kazemifard, Sholeh

doi:10.1080/10916466.2017.1384839

Cited by 9 publications

(4 citation statements)

References 7 publications

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“…Penetration @ 25°C, dmm 35 25-55 TS EN 1426 [37] Softening point, °C 65.5 ≥60 TS EN 1427 [38] Ductility @ 25°C, cm 100+ -TS EN 13589 [39] Specific gravity @ 25°C, g/cm 3 1.034 1.0-1.1 TS EN 15326 [40] Flash point, °C 340 ≥220 TS EN ISO 2592 [41] Mass loss, % 0.23 0.8 TS EN 12607-1 [42] Increase in softening point, °C 0.5 ≤10 TS EN 1427 [38] Retained penetration, % 91.4 ≥45 TS EN 1426 [37] Viscosity @ 135°C, cP 1850 -ASTM D4402 [43] Viscosity @ 165°C, cP 450 -ASTM D4402 [43] WCO was used as variable additive of the composite modified bitumen. The WCO used was obtained from Degam Company.…”

Section: Value Specification Limits Specificationmentioning

confidence: 99%

“…Volume specific gravity, g/cm 3 2.580 TS EN 1097-6 [44] Apparent specific gravity, g/cm 3 2.645 TS EN 1097-6 [44] Absorption, % 1.41 TS EN 1097-6 [44] Polishing value 61.7 TS EN 1097-8 [45] To prepare the composite modified bitumen samples, WCO was added to SBSMB samples at 150°C, as it is a material that can easily mix with bitumen, by using a mechanical stirrer at a rotation speed of 1000 rpm for 30 minutes. In addition, since it was predicted that composite modified bitumens may age due to the effect of temperature during the preparation process, the same mixing procedure was applied to the control sample (SBSMB).…”

Section: Properties Value Specificationmentioning

confidence: 99%

“…Styrene-butadiene-styrene (SBS) additive is the most commonly used polymer type in bitumen modification. When SBS is added to the base bitumen, the rutting, fatigue and stripping resistance as well as the elasticity and viscosity of the bitumen increase [1][2][3][4][5][6]. However, due to the increase in viscosity, the mixing and compaction temperatures of bitumen also increase [7].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Rheological and Physical Properties of SBS and WCO Composite Modified Bitumen

Çavdar,

Kumandaş,

Şahan

et al. 2024

tjce

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Nowadays, the use of waste materials in various industries is becoming widespread in order to promote waste recycling. Thus, scientists are researching the use of waste materials in bitumen modification. In this study, it was aimed to investigate the effect of waste cooking oil (WCO) on the physical and rheological properties of unaged Styrene-Butadiene-Styrene modified bitumen (SBSMB) by adding WCO at different ratios (1, 3, 5, 7, and 9%) to SBS modified bitumen. Accordingly, rotational viscosity (RV) tests and rheological tests with dynamic shear rheometer (DSR) based on the determination of complex shear modulus (|G*|) and phase angle (δ) were conducted along with the traditional bitumen tests. As a result of the experimental study, it was observed that adding WCO increased the workability and fatigue resistance of SBSMB, however, decreased its rutting resistance. Therefore, the mixing and compaction temperatures of SBSMB can be decreased by adding low amounts of WCO without excessive performance loss. Thus, during the construction of asphalt pavements, environmental damage can be reduced by utilizing waste materials and reducing CO2 emissions.

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Section: Value Specification Limits Specificationmentioning

confidence: 99%

Section: Properties Value Specificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of Rheological and Physical Properties of SBS and WCO Composite Modified Bitumen

Çavdar,

Kumandaş,

Şahan

et al. 2024

tjce

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“…An external validation analysis was conducted to examine the performance of the proposed formulae on the prediction of the complex shear modulus and phase angle of the modified bitumens. For this purpose, the experimental data from Hajikarimi et al [31], Moghadas Nejad et al [32] and Samieadel and Fini [33] were used for the validation of the formulae on crumb rubber, SBS and PPA-modified bitumens. The statistical parameters of the external data are presented in Table 8.…”

Section: Validity Of the Proposed Modelsmentioning

confidence: 99%

Genetic programming to formulate viscoelastic behavior of modified asphalt binder

Hosseini

Hajikarimi

Gandomi

et al. 2021

Construction and Building Materials

Self Cite

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The objective of this research was to develop prediction models for complex shear modulus (G*) and phase angle (δ) of bitumens modified with crumb rubber, styrene-butadiene styrene, and polyphosphoric acid at low and moderate temperatures. The experiments consisted of three different dosages of each modifier added to the original bitumen followed by measurement of G* and δ of the original and modified bitumen using the dynamic shear rheometer (DSR) test in frequency sweep mode (21 loading frequencies from 0.1 to 100 Hz) at seven test temperatures: -22, -16, -10, 0, 10, 16 and 22°C. Having the experimental database, a robust genetic programming (GP) method was used to develop an individual prediction model for each modifier based on temperature, loading frequency, the G* and δ of the original bitumen, and the dosage of the modifier. Results showed that GP successfully developed accurate and meaningful expressions for calculating G* and δ of the modified bitumen as two main constitutive components of the viscoelastic behavior of bituminous composites. Then, a parametric study and sensitivity analysis were performed on the developed models to better understand the effect of variables on the trend of the models. The modifier dosage is the most effective input variable of the model and the amount of G* and δ of the original bitumen accurately reflect the effect of temperature and loading frequency on viscoelastic behavior of the modified bitumen, as they behave linearly at the considered test temperatures.

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Rheological Analysis of Bitumen Modified by Waste Tire Powder Pyrolytic Oil Residue

Kebritchi

Shams

Firoozifar

et al. 2022

Int. J. Pavement Res. Technol.

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An investigation on the effect of SBS+Vacuum bottoms residue modification on rheological characteristics of asphalt binder

Cited by 9 publications

References 7 publications

Investigation of Rheological and Physical Properties of SBS and WCO Composite Modified Bitumen

Investigation of Rheological and Physical Properties of SBS and WCO Composite Modified Bitumen

Genetic programming to formulate viscoelastic behavior of modified asphalt binder

Rheological Analysis of Bitumen Modified by Waste Tire Powder Pyrolytic Oil Residue

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