Study of Rheological Properties of Bituminous Binders in Middle and High Temperatures

Remišová, Eva; Zatkalíková, Viera; Schlosser, František

doi:10.1515/cee-2016-0002

Cited by 21 publications

(9 citation statements)

References 3 publications

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“…The increased popularity of warm mix asphalt with foamed bitumen created scientific interest in the properties of foamed bitumen and long-term durability of foamed mixtures. The properties of mineral bitumen mixtures, among other factors, are highly dependent on the composition, temperature and aging history of bituminous binders [21][22][23]. Different approaches to evaluating the foamability of bitumens are known, some originating in the technology of cold mixtures [7,24], while others were investigated in the scope of the properties of warm mixtures [9,24].…”

Section: Introductionmentioning

confidence: 99%

Foaming Performance and FTIR Spectrometric Analysis of Foamed Bituminous Binders Intended for Surface Courses

Maciejewski

Chomicz-Kowalska

2021

Materials

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This study explores the effects of foaming on three selected bituminous binders: 50/70 paving grade bitumen, 45/80-55 polymer modified bitumen and 45/80-80 HiMA binder. The first part of the investigations included the evaluation of the foaming performance in terms of foaming temperature and foaming water content with the utilization of desirability functions and based on the equality of maximum expansion ratio and bitumen foam half-life. The second part of the study investigated the effects of foaming on the chemical structure of the binders using Fourier-transform infrared spectroscopy. The results of the spectroscopic measurements permitted calculation of structural indices specific to functional groups associated with bitumen oxidation, as well as those indicative of elastomeric modification. The results have shown that the different types of bitumen exhibited different foaming characteristics, which was most evident in bitumen foam half-lives, with the HiMA binder performing the best. The spectrometric measurements did not show any significant effects of foaming on the chemical structure of the evaluated binders related to oxidative stress, neither were any major changes in the PmB-specific regions found.

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Section: Introductionmentioning

confidence: 99%

Foaming Performance and FTIR Spectrometric Analysis of Foamed Bituminous Binders Intended for Surface Courses

Maciejewski

Chomicz-Kowalska

2021

Materials

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“…Modern asphalt binder testing procedures, developed during the extensive research carried out during the SHRP program [ 49 ] and in later years [ 50 , 51 , 52 ], yield new parameters that were shown to be in direct relationships with many properties of the resulting asphalt mixtures. It is now known [ 53 , 54 , 55 ] that certain high-temperature properties (G*/sin(δ) and the MSCR characteristics—particularly in case of polymer modified bitumen) of the asphalt binder translate well into the high-temperature properties of the asphalt mixtures.…”

Section: Introductionmentioning

confidence: 99%

Effects of Short-Term Ageing Temperature on Conventional and High-Temperature Properties of Paving-Grade Bitumen with Anti-Stripping and WMA Additives

2021

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The presented study explores the effects of decreased temperatures utilized in rolling thin-film oven (RTFOT) laboratory short-term ageing of asphalt binders based on 35/50- and 50/70-penetration paving-grade bitumen. Additionally, the effects of three additives used with these binders at different concentrations are evaluated: liquid anti-stripping agent, liquid warm-mix additive, and solid warm-mix additive. The resulting asphalt binders were subjected to basic (penetration at 25 °C, softening point, dynamic viscosity) and functional high-temperature characterization (G*/sin(δ), high critical temperature, non-recoverable creep compliance). It was found that the decreased short-term ageing temperatures may detrimentally impact the high-temperature grade of bituminous binders, but this effect can be mitigated by the use of appropriate additives. What is more, it was found that bituminous binders may respond differently to the aforementioned factors. Based on the results, it is advised that asphalt binders intended for use in warm-mix asphalts should be thoroughly tested to appropriately simulate the mixture production process and its effects.

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“…Szybki wzrost natężenia ruchu samochodowego oraz coraz większe wymagania użytkowników dróg w Polsce, jak i na świecie przyczyniły się do rozwoju w drogownictwie nowych technologii i modyfikatorów stosowanych jako dodatki do asfaltów drogowych w celu poprawy właściwości użytkowych mieszanek mine-lifetime. Bitumens are thermo-plastic materials with viscoelastic properties and in road pavements they are exposed to traffic loads in various climatic conditions [1,2]. Due to the above, it is necessary to take into consideration the behaviour of asphalt mixes in both low and high service temperatures [3].…”

Section: Wpowadzenieunclassified

“…The purpose of this paper is to present the results of testing the ralno-asfaltowych (mma) oraz wydłużenia okresu eksploatacji nawierzchni drogowej. Lepiszcza asfaltowe są materiałami termoplastycznymi o właściwościach lepkosprężystych, a w nawierzchniach drogowych narażone są na obciążenie ruchem w różnych warunkach klimatycznych [1,2]. W związku z tym należy uwzględniać zachowanie się mieszanek mineralno-asfaltowych zarówno w niskich, jak i wysokich temperaturach eksploatacyjnych [3].…”

Section: Wpowadzenieunclassified

The Effect of Wma Additive on Basic Properties of 35/50 and 50/70 Foamed Road Bitumen

Chomicz-Kowalska¹,

Bartos²,

Maciejewski³

et al. 2019

SAE

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A b s t r a c tThe need to use asphalt additives along with the reduction in the temperatures of asphalt mixes results mainly from the need to ensure the durability of asphalt pavements. The use of foamed asphalt for warm mix asphalt (WMA) enables reducing the temperatures of asphalt mixes by approx. 30-40°C in relation to traditional hot mix asphalt. The article presents an analysis of the impact of a liquid chemical additive that is currently used in the WMA technology on changes in foamed asphalt properties. The assessment embraced the basic features of bitumens and the parameters of the asphalt foam manufactured based on them. The base bitumen used in the testing included road asphalt 35/50 and 50/70, whereas the modification of their properties was carried out using the WMA additive content of 0.3% to 0.6% in relation to the asphalt mass. The asphalt foam parameters were measured after foaming at 155°C and with the foaming water content (FWC) of 1.5% to 3.5% with increments of 1.0%. S t r e s z c z e n i ePotrzeba stosowania dodatków do asfaltu wraz z obniżaniem temperatur technologicznych mieszanek mineralnoasfaltowych wynika głównie z konieczności zapewnienia trwałości nawierzchni asfaltowej. Stosowanie asfaltu spienionego do technologii na ciepło (WMA) umożliwia obniżenie temperatur mieszanek mineralno-asfaltowych o około 30-40ºC względem tradycyjnej technologii na gorąco. W artykule przedstawiono analizę wpływu dodatku chemicznego w postaci płynnej, który stosowany jest obecnie do technologii WMA, na zmiany właściwości asfaltów spienionych. Ocenie poddano podstawowe cechy lepiszczy oraz parametry wyprodukowanej na ich bazie piany asfaltowej. W badaniach jako bazowe lepiszcze zastosowano asfalty drogowe 35/50 oraz 50/70, natomiast do modyfikacji ich właściwości zastosowano dodatek WMA w ilości od 0,3% do 0,6% w stosunku do masy asfaltu. Pomiar parametrów piany asfaltowej przeprowadzono przy temperaturze wyjściowej asfaltu (przed spienieniem) wynoszącej 155ºC oraz przy zawartości wody spieniającej (FWC -Foaming Water Content) w zakresie od 1,5% do 3,5% ze wzrostem co 1,0%.

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Study of Rheological Properties of Bituminous Binders in Middle and High Temperatures

Cited by 21 publications

References 3 publications

Foaming Performance and FTIR Spectrometric Analysis of Foamed Bituminous Binders Intended for Surface Courses

Foaming Performance and FTIR Spectrometric Analysis of Foamed Bituminous Binders Intended for Surface Courses

Effects of Short-Term Ageing Temperature on Conventional and High-Temperature Properties of Paving-Grade Bitumen with Anti-Stripping and WMA Additives

The Effect of Wma Additive on Basic Properties of 35/50 and 50/70 Foamed Road Bitumen

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