Effects of nanocharcoal coconut-shell ash on the physical and rheological properties of bitumen

Jeffry, Siti Nur Amiera; Jaya, Ramadhansyah Putra; Hassan, Norhidayah Abdul; Yaacob, Haryati; Mirza, Jahangir; Drahman, Siti Hasyyati

doi:10.1016/j.conbuildmat.2017.10.019

Cited by 62 publications

(20 citation statements)

References 20 publications

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“…Since the G*sinδ values were obtained below the binders’ maximum limit of 5000 kPa for PAV-aged asphalt binders, the GO-modified binders’ fatigue resistance at intermediate temperatures was found to be adequate. The presence of GO in the binder improved the asphalt’s stiffness due to the strong bonding between the binder and GO and can effectively retard the aging process by delaying the heat loss [ 10 ]. Based on this outcome under the tested conditions for fatigue at different temperatures, it can be concluded that by incorporating GO, fatigue cracks caused by asphalt will not occur in the pavement when subjected to repeated loads.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, nanomaterials, due to their high functional density, high specific surface area, and strong absorption, have demonstrated a great potential to improve the properties of the binder, leading to high performance and prolonged service life of the pavement [ 5 , 6 ]. Previous research indicated enhancement in the performance of asphalt binder by incorporating numerous kinds of nanomaterials, such as nano-silica, carbon nanotubes (CNT), and nanoclays, among others [ 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. Ziari et al [ 14 ] studied the physical and rheological properties of CNT incorporated asphalts.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Graphene Oxide on Zero Shear Viscosity, Fatigue Life and Low-Temperature Properties of Asphalt Binder

et al. 2021

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This study has investigated the impact of graphene oxide (GO) in enhancing the performance properties of an asphalt binder. The control asphalt binder (60/70 PEN) was blended with GO in contents of 0%, 0.5%, 1%, 1.5%, 2%, and 2.5%. The permanent deformation behavior of the modified asphalt binders was evaluated based on the zero shear viscosity (ZSV) parameter through a steady shear test approach. Superpave fatigue test and the linear amplitude sweep (LAS) method were used to evaluate the fatigue behavior of the binders. A bending beam rheometer (BBR) test was conducted to evaluate the low-temperature cracking behavior. Furthermore, the storage stability of the binders was investigated using a separation test. The results of the ZSV test showed that GO considerably enhanced the steady shear viscosity and ZSV value, showing a significant contribution of the GO to the deformation resistance; moreover, GO modification changed the asphalt binder’s behavior from Newtonian to shear-thinning flow. A notable improvement in fatigue life was observed with the addition of GO to the binder based on the LAS test results and Superpave fatigue parameter. The BBR test results revealed that compared to the control asphalt, the GO-modified binders showed lower creep stiffness (S) and higher creep rate (m-value), indicating increased cracking resistance at low temperatures. Finally, the GO-modified asphalt binders exhibited good storage stability under high temperatures.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of Graphene Oxide on Zero Shear Viscosity, Fatigue Life and Low-Temperature Properties of Asphalt Binder

et al. 2021

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“…and increased of resilient modulus, stiffness, and tensile strength Jeffry et al 2016 [8] Coconut shell and palm oilshell Additive Mixture Coconut shell is better additive than palm oil shell, showing an improving resilient modulus Al-Mansob et al 2013 [9] Nanocharcoal coconut shell Additive Binder Improvement in penetration, softening point, viscosity, and rheology. Jeffry et al 2018 [10] Coconut fiber Additive Mixture Enhancement of the rheological behavior of asphalt mixtures in terms of phase angle (δ) and complex modulus (G*) Maharaj et al 2019 [11] Coconut shell Filler Binder Improvement in physical properties: rigidity, stability, and flow behavior. Yacoob et al 2017 [12] Coconut shell and coconut fibers Aggregate Mixture Improvement in resilient modulus with 10% of fiber and 15% shell Ting et al 2017 [13] Eggshell waste Additive Mixture…”

Section: Substitute Of Filler Mixturementioning

confidence: 99%

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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“…Asphalt binders can be made harder by modification. Different types of modifiers were tried worldwide to enhance the rheological properties of asphalt binder, such as polymers [1][2][3][4][5][6], crumb rubber [5,[7][8][9][10][11], waste plastic [12][13][14][15][16], geopolymers [17], and nano-materials [18][19][20][21]. Polymers are commonly used to modify and improve the rheological properties of asphalt binders.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Comparison of Mechanical Properties of Polymer-Modified Asphalt Mixtures

et al. 2021

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Polymer modification is extensively used in the Kingdom of Saudi Arabia (KSA) because the available asphalt cement does not satisfy the high-temperature requirements. It was widely used in KSA for more than two decades, and there is little information regarding the differences in the performance of different polymers approved for binder modification. Pavement engineers require performance comparisons among various polymers to select the best polymer for modification rather than make their selection based on satisfying binder specifications. Furthermore, the mechanical properties can help select polymer type, producing mixes of better resistance to specific pavement distresses. The study objective was to compare the mechanical properties of the various polymer-modified asphalt (PMA) mixtures that are widely used in the Riyadh region. Control mix and five other mixes with different polymers (Lucolast 7010, Anglomak 2144, Pavflex140, SBS KTR 401, and EE-2) were prepared. PMA mixtures were evaluated through different mechanical tests, including dynamic modulus, flow number, Hamburg wheel tracking, and indirect tensile strength. The results show an improvement in mechanical properties for all PMA mixtures relative to the control mixture. Based on the overall comparison, the asphalt mixture with polymer Anglomk2144 was ranked the best performing mixture, followed by Paveflex140 and EE-2.

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Effects of nanocharcoal coconut-shell ash on the physical and rheological properties of bitumen

Cited by 62 publications

References 20 publications

Impact of Graphene Oxide on Zero Shear Viscosity, Fatigue Life and Low-Temperature Properties of Asphalt Binder

Impact of Graphene Oxide on Zero Shear Viscosity, Fatigue Life and Low-Temperature Properties of Asphalt Binder

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

Evaluation and Comparison of Mechanical Properties of Polymer-Modified Asphalt Mixtures

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