Correlation between rheology and chemical composition of aged polymer-modified asphalts

Yut, Iliya; Zofka, Adam

doi:10.1016/j.conbuildmat.2014.03.043

Cited by 67 publications

(26 citation statements)

References 10 publications

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“…White powder Whiteness (%) P90 Bulk density (g/cm 3 ) 0.38 Moisture content (105°C for 1 h, wt.%) 60.5 Specific surface area (m 2 /g) 34…”

Section: Appearancementioning

confidence: 99%

“…However, during the lifetime of pavement, bitumen is exposed to numerous external factors, such as ultraviolet (UV) light, high temperature, oxygen etc., associated with aging inducements, which will lead to hardening caused by bitumen aging and further result in deterioration of pavement structure, i.e. high temperature rutting, low thermal cracking, thus reducing service life and riding quality of pavements [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the ultraviolet aging resistance of organic layered double hydroxides modified bitumen

et al. 2015

Construction and Building Materials

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“…White powder Whiteness (%) P90 Bulk density (g/cm 3 ) 0.38 Moisture content (105°C for 1 h, wt.%) 60.5 Specific surface area (m 2 /g) 34…”

Section: Appearancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of the ultraviolet aging resistance of organic layered double hydroxides modified bitumen

et al. 2015

Construction and Building Materials

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“…Further, this example considers only one phenomenon (bottom-up cracking) while there are other factors either affecting this phenomenon or contributing to other phenomena such as resistance to low temperature (Zofka, Braham 2009), pavement dynamic response (Li et al 2012) or aging resistance (Li et al 2006). In the recent years, there is also a growing awareness that there is a close link between chemical and mechanical properties of asphaltic materials, which also needs to be taken into consideration (Paliukaitė et al 2015;Yut, Zofka 2014).…”

Section: Discussionmentioning

confidence: 99%

Geogrid Reinforcement of Asphalt Pavements

Zofka

Maliszewski

Zofka

et al. 2017

The Baltic Journal of Road and Bridge Engineering

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Geogrid materials applied within asphalt layers defer or prevent the occurrence of reflective cracking. The contribution of this work significantly adds to extending pavement serviceability and improving benefit/cost analysis. Since 1970s many studies have demonstrated the benefits of geogrid reinforcement in asphalt pavements, but this knowledge did not translate to their extensive usage in the actual construction practice. Among potential reasons are higher initial costs, lack of in-depth understanding of working mechanism within adjacent asphalt layers and lack of commonly standard design procedures. This paper presents a recent study, which investigated the effect of geogrid reinforcement on asphalt mixture specimens. Two types of laboratory experiments were conducted, namely monotonic (strength and fracture) testing and cyclic (fatigue and modulus) testing. The results demonstrated a significant strengthening contribution of geogrid, which was observed regarding fracture energy results and terminal deflections in the fatigue testing. This paper also presents a short example connecting pavement deflections with the allowable axle loading (also known as fatigue life) to demonstrate the practical implications of geogrid reinforcement. The undertaken analysis shows the reduction of pavement deflections due to the geogrid application, which potentially leads to a significant extension of pavement fatigue life. Paper concludes with several recommendations for further work in the area of geogrid reinforcement.

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“…FT-IR ATR spectroscopy was used to investigate the oxidation levels and polymer in bitumen [60][61][62][63][64][65]. Due to the stimulation with infrared signal waves and the absorption of energy by the molecules, the determined ATR spectra contains information about the composition and the structure of the binder, including the compounds and functional groups of the bitumen components.…”

Section: Attenuated Total Reflection (Atr) Fourier Transform Infraredmentioning

confidence: 99%

Effect of Aging on Chemical Composition and Rheological Properties of Neat and Modified Bitumen

2019

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The aim of this research was to define the effect of oxidative aging on the chemical and rheological properties of neat and styrene-butadiene-styrene (SBS) polymer-modified bitumen. The experimental research had two objectives: firstly, the short and long-term effects of aging on the properties of neat and polymer-modified bitumen were investigated. Then, the aging indexes based on chemical and rheological properties to describe the age of unknown bitumen were established. Aging characteristics such as the Gaestel index, sulfoxide and carbonyl indexes, linear viscoelastic strain range, crossover temperature, and Glover–Rowe parameter were analysed for laboratory aged and naturally aged neat and polymer-modified bitumen. The functional composition of aged bitumen was evaluated by measuring absorption with Fourier transform infrared (FT-IR) attenuated total reflection (ATR) spectrometer. The saturates, aromatics, resins, and asphaltenes (SARA) fractions were determined with thin layer chromatography with flame-ionization detection (TLC-FID) to determine the colloidal instability index (Gaestel index). Finally, the complex shear modulus was determined with dynamic shear rheometer (DSR) to evaluate the influence of aging on the bitumen mechanical performance.

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Correlation between rheology and chemical composition of aged polymer-modified asphalts

Cited by 67 publications

References 10 publications

Investigation of the ultraviolet aging resistance of organic layered double hydroxides modified bitumen

Investigation of the ultraviolet aging resistance of organic layered double hydroxides modified bitumen

Geogrid Reinforcement of Asphalt Pavements

Effect of Aging on Chemical Composition and Rheological Properties of Neat and Modified Bitumen

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