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Rheological master curves for modied asphalt binders
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نویسنده
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Asgharzadeh S.M. ,Tabatabaee N.
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منبع
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scientia iranica - 2013 - دوره : 20 - شماره : 6- A - صفحه:1654 -1661
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چکیده
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Modied bitumen enhances the performance properties of asphalt mixtures.a number of studies in the last decade have evaluated the performance properties ofmodied binders at di erent service temperatures. it is however possible to evaluatesome modied binder time-temperature characteristics and performance properties throughtheir rheological master curves. in this research, styrene butadiene styrene, ethylene vinylacetate, polyphosphoric acid and crumb rubber were used to modify a pg58-22 base binder.rheological master curves for jgj and phase angles of these binders were generated usingdata from the dynamic shear rheometer and bending beam rheometer at temperaturesranging from ??30c to about 88c. the rheological interpretation of the results indicatedimproved high and low temperature properties and reduced temperature susceptibility formost of the modied binders. a comparison of the modied binders was done based on thevisual inspection of master curves for di erent temperature ranges.
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کلیدواژه
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Modied binder; ,Complex modulus; ,Phase angle; ,Rheological master curve; ,Pavement performance.
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آدرس
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sharif university of technology, He is currently a PhD candidate in Transportation Engineering at sharif universsity, ایران, sharif university of technology, member of the Civil Engineering Faculty at Sharif University of Technology, ایران
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Authors
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