Towards the Use of Waste Pig Fat as a Novel Potential Bio-Based Rejuvenator for Recycled Asphalt Pavement

Nciri, Nader; Shin, Taesub; Kim, Nam-Ho; Caron, Arnaud; Ismaıl, Hanen Ben; Cho, Namjun

doi:10.3390/ma13041002

Cited by 30 publications

(14 citation statements)

References 33 publications

(45 reference statements)

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“…The shift to high temperatures observed in the J4 thermogram could be a consequence of the interactions between the polar compounds of the Jatropha seed shells and the polar fractions of the asphalt, which establish forces that prevent the thermal rupture of bonds at relatively lower temperatures. Similar results were reported by Nciri et al 2020 [33], who reported that more than 6% of waste pig fat improved the thermal stability, which was attributed to the high unsaturated fatty acid content that made the asphalt binder more susceptible to an insignificant thermal decomposition. The thermograms of pistachio-modified asphalt blends with pistachio shells are presented in Figure 8.…”

Section: Thermal Propertiessupporting

confidence: 88%

Evaluation of Jatropha curcas and Pistachio Shell Particles as Modifier for Asphalt Binder

et al. 2021

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In recent years, the use of waste materials from agricultural sources has attracted interest as a research field. Several kinds of waste particles have been studied as additives for asphalt modification, and good results in terms of rheological and physical properties have been discussed in recent literature. In the present work, two types of seed shell particles were evaluated as asphalt modifiers. The shells of Jatropha curcas and pistachio are considered waste materials with no further industrial applications; therefore, in this study, they were incorporated into asphalt at different concentrations in order to evaluate their effect on the binder’s properties. Modified asphalt mixtures were prepared through the hot mix method, and the physical, rheological, and thermal properties of the modified samples were measured and compared to those of the unmodified binder. According to the results of softening point, viscosity, and rheological characterization, the particles obtained from Jatropha curcas and pistachio shells can be used as efficient additives for asphalt modification. Pistachio shell particles act as an asphalt modifier, while Jatropha curcas behaves more like a filler agent since using it at high concentrations causes an inverse effect on the modified performance and properties of the asphalt. Finally, the results obtained showed that both shell particles were useful for improving the binder’s resistance to rutting and permanent deformations, compared to the pure asphalt’s original behavior.

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Section: Thermal Propertiessupporting

confidence: 88%

Evaluation of Jatropha curcas and Pistachio Shell Particles as Modifier for Asphalt Binder

et al. 2021

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“…These interactions and related changes in asphalt fractions can be explored through TGA. Nciri et al [20] found that using waste pig fat as a rejuvenator with RAP binders decreased the %R and T onset . Previous studies [21,22] examined the thermal stability of the asphalt binder fractions [saturates, aromatics, resins, and asphaltenes], and it was found that the thermal stability was the highest for asphaltene as the heaviest fraction with the highest molecular weight.…”

Section: Introductionmentioning

confidence: 99%

Thermal, Chemical and Rheological Properties of Asphalt Binders Extracted from Field Cores

Deef-Allah

Abdelrahman

2022

Preprint

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Asphalt binders were extracted and recovered from field cores that were collected from different routes. These cores were for asphalt mixes containing virgin asphalt binders (VABs) with different performance grades (PGs) and different asphalt binder (ABR) replacement percentages by reclaimed asphalt pavement (RAP) and/or recycled asphalt shingles (RAS). These mixes had ages between 4 and 14 years during the sampling process, thus the extracted asphalt binders (EABs) were treated as long-term aged binders. Using RAP/RAS in asphalt mixes alters the performance of EABs at intermediate temperatures. Thus, the resistance of EABs to fatigue cracking was explored through rheological testing that included Superpave fatigue cracking parameter (|G*|.sinδ) and the number of load repetitions to failure (Nf). Thermal properties of EABs were evaluated using thermogravimetric analysis; different parameters were evaluated from the thermal analysis [e.g., percentage of residue (%R) and onset temperature (Tonset)]. The chemical properties of EABs were examined by a Fourier transform infrared (FTIR) spectroscopy through evaluating carbonyl (ICO), sulfoxide (ISO), aromatic (ICC), and aliphatic (ICH) indices. The relationships between the resistance of EABs to fatigue cracking, thermal and chemical properties were scrutinized. Ages of mixes, ABR percentage by RAP/RAS, and PGs of VABs controlled the resistance of EABs to fatigue cracking. Direct relationships were observed between |G*|.sinδ and %R, ISO and Nf, ICH and Nf, ICO and %R, and ICC and %R. Inverse relationships were found between Nf and Tonset, Nf and %R, Nf and ICO, Nf and ICC, %R and ISO, and %R and ICH.

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“…Various bio-resources, such as waste wood, animal waste [ 4 ], soybean straw [ 5 ] and waste cooking oil, have been identified as suitable for reducing the production of petroleum-based asphalt for the sustainable developments of flexible pavements [ 6 ]. The suitability of bio-resources is a key point for the production and employment of bio-binders, and can be assessed through the FTIR method, which can evaluate the compatibility of a substance or bitumen additive and its structural stability [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Asphalt Mixture Produced with a Bio-Based Binder

Gaudenzi

Canestrari

et al. 2021

Materials

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Nowadays, the growing energy costs and pressing worldwide demand for petroleum-based products create a strong need to develop alternative binders deriving from green and renewable sources. Bio-binders (or bitumen added to bio-based materials) can potentially be a viable alternative for the production of bituminous mixture, promoting the circular economy as well as environmental sustainability principles without reducing the overall performance of the mixture. In this context, the current study focuses on evaluation of the effects of a bio-binder on the mechanical response of asphalt concrete (AC) produced with it. In particular, a 10% bio-oil deriving from a by-product of the paper industry has been blended with a conventional 50/70 penetration grade bitumen to obtain the bio-binder. Moreover, plain bitumen having the same consistency was chosen to produce a reference AC. Two dense-graded AC wearing courses were prepared in the laboratory according to Italian technical specifications. A mechanical characterization in terms of indirect tensile strength, indirect tensile stiffness modulus, fatigue response and permanent deformation resistance was performed on gyratory compacted specimens using both conventional and performance tests. In addition, aging and water sensitivity of the AC specimens were evaluated. Overall results highlight that the AC produced with the bio-binder did not show reduced mechanical properties and it was comparable to the reference AC regardless of aging and water conditioning. This highly encourages the use of bio-binder as a viable alternative in asphalt technology.

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Towards the Use of Waste Pig Fat as a Novel Potential Bio-Based Rejuvenator for Recycled Asphalt Pavement

Cited by 30 publications

References 33 publications

Evaluation of Jatropha curcas and Pistachio Shell Particles as Modifier for Asphalt Binder

Evaluation of Jatropha curcas and Pistachio Shell Particles as Modifier for Asphalt Binder

Thermal, Chemical and Rheological Properties of Asphalt Binders Extracted from Field Cores

Performance Assessment of Asphalt Mixture Produced with a Bio-Based Binder

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