Warm Mix Asphalt Binder Utilizing Water Foaming and Fluxing Using Bio-Derived Agent

Iwański, M.; Chomicz-Kowalska, Anna; Maciejewski, Krzysztof; Iwański, Marek; Radziszewski, Piotr; Liphardt, Adam; Król, Jan; Sarnowski, Michał; Kowalski, Karol J.; Pokorski, Piotr

doi:10.3390/ma15248873

Cited by 4 publications

(5 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since bitumens can be modified with a variety of different additives prior to foaming and the foaming process can be applied by add-on modification at any asphalt plant, it can be easily and affordably combined with other techniques to enhance the characteristics of the binder, while some additives may also be used to enhance the foaming capabilities of the binders [ 29 ]. The application of bio-flux additive in combination with the technology of foamed bitumen and polymer-modified bitumen was described in the work of Iwański M. et al [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Ageing Evaluation of Foamed Polymer Modified Bitumen with Bio-Flux Additive

et al. 2023

Self Cite

View full text Add to dashboard Cite

This paper presents the results of an analysis of the changes in the stiffness of asphalt binders modified with a bio-flux additive and subjected to the processes of foaming and short-term ageing. The purpose of the analyses was to determine changes in the rheological properties of asphalt binder as a result of technological processes characteristic of hot and warm mix asphalt technology. Three asphalt binders with similar penetration but varying degrees of polymer modification were tested: 50/70, 45/80–55 polymer-modified bitumen, and 45/80–80 highly modified bitumen. Tests were carried out on four groups of binders: original binders, foamed binders after 14 days of storage, non-foamed binders after Rolling Thin Film Oven Test (RTFOT) ageing, and foamed binders after 14 days of storage subjected to RTFOT ageing. The master curves of the complex shear modulus G* were analysed, and three indexes of binder stiffening were determined, characterising the investigated effects. The tests showed that some of the stiffening indices significantly depended on the degree of polymer modification and the content of the bio-flux additive. Moreover, it was found that the foaming process in the case of paving-grade bitumen and polymer-modified bitumen did not contribute to the additional stiffening of the binders.

show abstract

Section: Introductionmentioning

confidence: 99%

Ageing Evaluation of Foamed Polymer Modified Bitumen with Bio-Flux Additive

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…The additive has also decreased their contents in laboratory-aged binders, although this effect was significantly less pronounced than in the case of the non-aged binders. These effects could contribute to the effects of fluxing action of the bio-additive and subsequent recovery of the binders’ stiffness as observed in [ 38 , 40 , 42 ].…”

Section: Discussionmentioning

confidence: 99%

“…The FTIR measurements were done in triplicates for the five selected asphalt binders before ageing, after RTFOT ageing and after RTFOT+PAV ageing. The effects of the bio-flux additive were investigated in all mentioned cases based on the measurements of non-fluxed binders and using its three dosing rates: 1%, 2% and 3%, which were defined in preliminary testing (based on experiences from previous studies [ 35 , 39 , 40 , 42 ]).…”

Section: Methodsmentioning

confidence: 99%

“…In a different work, it was shown that highly modified asphalt binders are well suited for being foamed using the water-injection method [ 41 ]. A recent study [ 42 ] has investigated the effects of simultaneous use of fluxing using the Bioflux additive and water foaming different asphalt binders, including polymer modified and highly modified binders. It was shown that the response of the binders to fluxing differed greatly depending on the type of the binder, and the fluxed, highly modified asphalt binder improved its high-temperature performance after foaming.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Laboratory Ageing on the FTIR Measurements of Water-Foamed Bio-Fluxed Asphalt Binders

et al. 2023

Self Cite

View full text Add to dashboard Cite

The study investigated the effects of laboratory ageing on the fluxed and water-foamed asphalt binders in scope of Fourier transform infrared spectroscopic measurements of ageing indicators and changes in their chemical composition. The investigated binders included two paving grades, two polymer modified asphalt binders, and a highly modified asphalt binder. The bio-flux additive was produced from rapeseed methyl esters in an oxidation reaction in the presence of a metal catalyst and organic peroxide. The use of the bio-origin additive, in particular oil derivatives, was aimed at softening and better foaming of asphalt binders. This modification is possible due to the good mixability of vegetable oils with an asphalt binder, which gives a homogeneous product with reduced stiffness. The study involved the rolling thin film oven, short-term, and the pressure ageing vessel, long term, and ageing to induce oxidation on the evaluated asphalt binders. The addition of the bio-flux additive has significantly decreased the measured content of ketone compounds related to oxidation in both non-aged and aged asphalt binders, although this effect after ageing were far smaller in magnitude. Additionally, both ageing processes decreased significantly the absorbances in the ester spectral bands specific to the bio-flux additive. All mentioned effects were similar in magnitude in all tested asphalt binders.

show abstract

“…The suitability of 50/70 paving grade bitumen was established in accordance with the experiment plan and in accordance with the methodology implemented by the authors of the papers [ 41 , 42 , 43 ]. Bitumen 50/70 is a typical bitumen used to produce foamed bitumen [ 44 ]. The optimum amount of water needed to obtain the foamed bitumen was determined in accordance with the requirements specified in [ 45 ].…”

Section: Experiments Planmentioning

confidence: 99%

The Influence of Recycled Materials on Cold Mix with Foamed Bitumen Properties

2023

View full text Add to dashboard Cite

The utilization of recycled materials is an important issue in the context of environmental protection. The large amounts of recycled material recovered from the demolition of asphalt road structures indicate the need to find new ways of utilizing them. In the case of road renovation projects, large amounts of recycled materials are, in most cases, recovered in the form of reclaimed asphalt pavement (RAP), reclaimed concrete (RC) and recycled aggregate (RA). To focus on the effects of the use of recovered materials (RAP, RC and RA), the same composition was used for all of the analyzed mixtures in terms of foamed bitumen (FB) and Portland cement (CEM) content. The scope of laboratory tests included the specification of the following parameters: the amount of air void content Vm, the determination of axial compression strength at +25 °C, indirect tensile strength (ITS) at +25 °C, water resistance, TSR, water and frost resistance, WRW+M stiffness modulus (IT-CY) at 13 °C, dynamic dynamicmodulus. The plan of the experiment assumed addition recycled material in quantities between 20% and 80% in increments of 20%. The obtained results indicate that both the type and quantity of recycled material significantly affect the properties of the cold-recycled mixture with foamed bitumen. Using reclaimed asphalt pavement and recycled cement concrete guarantees high levels of stiffness in the recycled mixture. Howeverin the case of recycled aggregate, the authors did not observe any visible changes in the dynamicdynamic modulus, irrespective of the loading conditions. It was also indicated that it is necessary to reduce the quantity of reclaimed asphalt pavement in the composition of the FB-RCM mix to maintain the required air void content.

show abstract

Warm Mix Asphalt Binder Utilizing Water Foaming and Fluxing Using Bio-Derived Agent

Cited by 4 publications

References 37 publications

Ageing Evaluation of Foamed Polymer Modified Bitumen with Bio-Flux Additive

Ageing Evaluation of Foamed Polymer Modified Bitumen with Bio-Flux Additive

Effects of Laboratory Ageing on the FTIR Measurements of Water-Foamed Bio-Fluxed Asphalt Binders

The Influence of Recycled Materials on Cold Mix with Foamed Bitumen Properties

Contact Info

Product

Resources

About