Analytical investigation of the impact of a novel bio-based recycling agent on the colloidal stability of aged bitumen

Tabatabaee, Hassan A.; Kurth, Todd L.

doi:10.1080/14680629.2017.1304257

Cited by 58 publications

(9 citation statements)

References 12 publications

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“…Moreover, comparing the SARA fraction results from TLC-FID performed in different laboratories is challenging due to the use of the differing solvents and times of elution (often not reported in literature) (Masson et al 2001;Higuerey et al 2002;Tabatabaee and Kurth 2017;Paliukaite et al 2014). The laboratories choose the method for the inside quality control of the product, or for the compari-son between the products in development stage, based on inside correlations (Lehto 1988;Teugels and Zwijsen 1991).…”

Section: Introductionmentioning

confidence: 99%

Qualitative Detection of the Presence of Gilsonite in the Bituminous Blends Based on Thin Layer Chromatography

Makowska

Pellinen

2018

RILEM Bookseries

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The natural asphalts, of which Gilsonite is a representative, are modifiers used to increase the stiffness modulus of the asphalt concrete. For quality control purpose, recognizing if such material is present in the final blend is of an interest. The thin layer chromatography using a flame photometric detector (FPD), in addition to the typical flame ionization detector, was demonstrated hereby as a viable analytical tool for this problem. Gilsonite also contains the material soluble in solvent used in the development of the fraction referred to as aromatics. However, for straight run bitumen and Gilsonite the color of that fraction is different as well as their mobility. Due to the lower mobility of Gilsonite molecules on the stationary phase, the elution stops at different position than for fresh bitumen, convoluting the signal in the chromatogram region typically assigned for resins. The presence of Gilsonite is identifiable visually after the second development bath, but also with FPD from the final chromatogram.

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Section: Introductionmentioning

confidence: 99%

Qualitative Detection of the Presence of Gilsonite in the Bituminous Blends Based on Thin Layer Chromatography

Makowska

Pellinen

2018

RILEM Bookseries

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“…That means there is no significant difference among the grade losses for the different binders used. Early studies have shown that soft binders tend to have lower grade losses. , In order to meet the requirements of an improved binder specification proposed by the Ontario Ministry of Transportation (MTO), some oil-based softening agents (waste vegetable oil or swine manure oil) could be used. However, using such additives may destroy the colloidal stability within the binder.…”

Section: Resultsmentioning

confidence: 99%

Balancing the Use of Wax-Based Warm Mix Additives for Improved Asphalt Compaction with Long-Term Pavement Performance

Ding

Hesp

2021

ACS Sustainable Chem. Eng.

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Using wax-based warm mix additives allows contractors to lower production and compaction temperatures of asphalt, thereby reducing greenhouse and other harmful gas emissions in pavement construction. However, excessive wax can adversely affect the long-term durability of the pavement. In order to quantify solid wax, the effects of selected commercial additives on spectral and thermal properties of asphalt binder were studied by variable-temperature Fourier-transform infrared spectroscopy (VT-FTIR) and differential scanning calorimetry (DSC). The VT-FTIR reduced spectral area versus temperature plots for waxdoped asphalt binder were found to have three distinct parts from which solid wax contents could be determined. The wax precipitation temperature (WPT), obtained from DSC measurements of heat flow during cooling, was found to increase with additive content. In contrast, the wax melting out temperature (WMT), determined upon heating, appears to be independent of the additive content.

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“…They introduced this bio-oil as an appropriate rejuvenator for aged bitumen. The bio-oil also had a positive effect on the glass transition temperature, and physical hardening did not diminish the bio-oil’s impact …”

Section: Chemical Agingmentioning

confidence: 97%

“…The bio-oil also had a positive effect on the glass transition temperature, and physical hardening did not diminish the bio-oil's impact. 149 Oldham et al found that the approximate addition of 16.6% bio-oil from swine manure could restore the m-value of reclaimed asphalt pavement. The lengths of bee-like structures increased after bitumen aging.…”

Section: Chemical Agingmentioning

confidence: 99%

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

2023

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The global emphasis on sustainability and net zero carbon roads combined with the increased cost of crude oil has necessitated the application of new environmentally friendly alternatives to the bitumen used in asphalt by the pavement industry. Physical aging, chemical aging, and moisture damage are three important matters encountered in the pavement industry that are harmful for asphalt; bio-oils can decelerate the rates of physical aging and chemical aging in virgin bitumen, and bio-oils can substantially improve virgin bitumen’s resistance to moisture damage. Bio-oils can also restore properties in environmentally damaged asphalt up to a certain limit of aging. The main goal of this review is a comprehensive analysis of the literature about the potential of bio-oils produced from different biomass sources to influence the physical aging, chemical aging, and moisture damage of asphalt. Considering that bitumen’s physical aging is highly impacted by the bitumen’s wax content, this review also covers the effect of wax inherently present in bitumen or wax added to bitumen as a modifier. It is concluded that the chemical composition of a bio-oil has a significant impact on the bio-oil’s ability to protect or recover the bitumen’s original properties. Phenolic compounds found in bio-oils have antiaging effects while bio-oils’ acidic compounds may lead to moisture susceptibility.According to the literature, most bio-oils have positive effects only in a specific range of temperatures: low, intermediate, or high. Complete miscibility and dispersion of a bio-oil in the asphalt matrix also have a significant influence on making a bio-oil an effective modifier. Generally, bio-oils are promising as sustainable, carbon-neutral, cost-effective alternatives to replace or modify conventional bitumen in the pavement industry. This review has identified the following critical research gaps: (1) the lack of standard methods for evaluating and reporting the performance characteristics of each bio-oil in bitumen; (2) the lack of long-term field performance data on bio-oils to support comprehensive life-cycle assessments and life-cycle analyses; (3) high variation among bio-oils made from the same feedstock through different processing methods, leading to variation in performance characteristics; (4) the lack of accurate technoeconomic analysis on industrial bio-oils to facilitate entry of bio-oils into the asphalt market.

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Analytical investigation of the impact of a novel bio-based recycling agent on the colloidal stability of aged bitumen

Cited by 58 publications

References 12 publications

Qualitative Detection of the Presence of Gilsonite in the Bituminous Blends Based on Thin Layer Chromatography

Qualitative Detection of the Presence of Gilsonite in the Bituminous Blends Based on Thin Layer Chromatography

Balancing the Use of Wax-Based Warm Mix Additives for Improved Asphalt Compaction with Long-Term Pavement Performance

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

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