Physical properties and chemical bonding of advera<sup>®</sup> modified asphalt binder

Taher, Mohammad Nasir Mohammad; Aman, Mohamad Yusri

doi:10.1051/matecconf/201825002008

Cited by 4 publications

(3 citation statements)

References 11 publications

(14 reference statements)

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“…Materials were characterised to ensure fulfilling the standard and specifications. Results showed that fly ash geopolymer causes increase in softening point and reductions in penetration [18]. All in all, it was found that the optimum of fly ash geopolymer is 9% and further additional of fly ash geopolymer slightly affected the penetration and softening properties of modified asphalt binder, respectively.…”

Section: Discussionmentioning

confidence: 90%

Physical Characterization of Modified Asphalt Binder with Differing Fly Ash Geopolymer Contents

Bujang,

Aman,

Arumugam

et al. 2023

IJIE

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Nowadays, the use of waste material product widely usedin the asphalt mixtures industry production duetoa cost-effective method of pavementconstruction that can decrease the consumption of natural resources and to reduce environmental pollution.This research aimed to investigate the possibility of using waste and by-product material namely fly ash geopolymer additive to influence the physical properties of asphalt binder. A series of asphalt binder laboratory tests were carried out to evaluate the properties of the 60/70 and 80/100 asphalt binder incorporating 3%, 5%, 7%, 9% and 11% of fly ash geopolymer additive. The physical properties of the binders were determined using the penetration, softening, penetration index, ductility, and rotationalviscosity respectively. The results indicated that, the fly ash geopolymer modified binder had improved the physical properties over base binder. The thermal susceptibility also improved by referring to the Penetration Index value.Overall research conclusions are that geopolymer application resulted in a potential enhancement of some of the properties of the asphalt binder and increase the performance of asphalt binder in the pavement application.

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Section: Discussionmentioning

confidence: 90%

Physical Characterization of Modified Asphalt Binder with Differing Fly Ash Geopolymer Contents

Bujang,

Aman,

Arumugam

et al. 2023

IJIE

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“…As a result, the increases, which enhances the asphalt binders' linear strain limit. The elasticity of the asphalt binder and its stiffness to resist deformation increase as the temperature rises [9][10][11].…”

Section: Effect Of Fag Content On G* and Sin δ Of Unaged Asphalt Bindermentioning

confidence: 99%

Effects of Fly Ash Geopolymer Hot Mix Asphalt Additive on the Rheological Properties of Unaged and Short-Term Aged Asphalt Binder

Hazirah Bujang,

Mohamad Yusri Aman,

Mohammad Nasir Mohamad Taher

et al. 2023

ARAM

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Asphalt pavement has the advantages of driving comfort and convenient maintenance, which has been widely applied to highway construction. However, due to the continuously increased traffic volume, it is recognized that asphalt binder and mixtures with enhanced characteristics are needed to guarantee the durability of the functional performance of transportation infrastructures. This study was carried to evaluate the effect of fly ash geopolymer additive on the rheological properties of unaged and short-term aged asphalt binder. In the respect, asphalt binder 80/100 and 60/70 penetration grade with 0, 3, 5, 7, 9 and 11% fly ash geopolymer by weight of asphalt binder were prepared. The results indicated that the addition of FAG significantly increases the stiffness (G*) and decreases the phase angle (δ) for both unaged and short-term aged modified asphalt binder compared to the control asphalt binder. This can be proved that presence of FAG significantly improved rutting parameter i.e G*/sin δ compared to control in which capable to resist rutting at higher temperature. In terms of failure temperature, highest failure temperature of 9% FAG modified asphalt binder indicated that the binder is less susceptible to be rutting at high pavement temperature for both unaged and short-term aged, respectively. Overall research conclusions are that 9% of FAG is proposed as the minimal content to be used as an additive in asphalt binder for further mixture evaluations.

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“…The purpose of these additives is to enhance the structural integrity of the asphalt pavement and address specific performance issues. By incorporating suitable additives, such as polymers, fibers, or other modifiers, the properties of the HMA can be modified to improve its strength, durability, resistance to cracking and rutting, and overall performance under traffic loads and environmental conditions [4]. These advancements aim to ensure the long-term functionality and sustainability of asphalt pavements.…”

mentioning

confidence: 99%

Microstructural Characteristics of Fly Ash Geopolymer Modified Asphalt Binder

Bujang,

Aman,

Mohamad Taher

et al. 2023

IJIE

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The incorporation of by-product materials, such as fly ash geopolymer, has a significant influence on the properties of asphalt binder. This results in a reduction in binder viscosity and an increase in binder stiffness. This, in turn, promotes enhanced aggregate-asphalt binder bonding. Geopolymer refers to a class of inorganic materials characterized by the formation of a long-range, covalently bonded non-crystalline skeleton. The aim of this study was to explore the potential of incorporating waste and by-product materials, specifically fly ash geopolymer additive, in order to influence the microstructure of asphalt binder. The focus was on examining how the inclusion of fly ash geopolymer could alter the internal arrangement and composition of the asphalt binder, leading to potential improvements in its properties and performance. Laboratory experiments were performed to analyze the microstructure of 60/70 and 80/100 asphalt binder samples using Scanning Electron Microscope (SEM) imaging. These samples were modified with various concentrations (3%, 5%, 7%, 9%, and 11%) of fly ash geopolymer additive. The SEM images were obtained to examine the morphological changes and assess the distribution of the fly ash geopolymer particles within the asphalt binder matrix at different additive concentrations. The NOVA NANOSEM 230 equipment was utilized to determine the morphological characteristics of the asphalt binders. The results showed notable variations in the properties of the asphalt binders modified with fly ash geopolymer compared to the unmodified control asphalt binder. The morphological evaluation revealed thorough blending of the fly ash geopolymer additive. Notably, the micrographs demonstrated a denser structure with increased percentages of fly ash geopolymer, indicating a presence of fly ash and alkaline activator promotes the rapid formation of polymerization. These findings emphasize the promising potential of fly ash geopolymer as an additive in asphalt binder. The significant effect it has on viscosity when incorporated into modified asphalt binder makes it a valuable candidate for application in the field.

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Physical properties and chemical bonding of advera^® modified asphalt binder

Cited by 4 publications

References 11 publications

Physical Characterization of Modified Asphalt Binder with Differing Fly Ash Geopolymer Contents

Physical Characterization of Modified Asphalt Binder with Differing Fly Ash Geopolymer Contents

Effects of Fly Ash Geopolymer Hot Mix Asphalt Additive on the Rheological Properties of Unaged and Short-Term Aged Asphalt Binder

Microstructural Characteristics of Fly Ash Geopolymer Modified Asphalt Binder

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Physical properties and chemical bonding of advera® modified asphalt binder

Cited by 4 publications

References 11 publications

Physical Characterization of Modified Asphalt Binder with Differing Fly Ash Geopolymer Contents

Physical Characterization of Modified Asphalt Binder with Differing Fly Ash Geopolymer Contents

Effects of Fly Ash Geopolymer Hot Mix Asphalt Additive on the Rheological Properties of Unaged and Short-Term Aged Asphalt Binder

Microstructural Characteristics of Fly Ash Geopolymer Modified Asphalt Binder

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Physical properties and chemical bonding of advera^® modified asphalt binder