Viscoelastic Response of Bitumen Emulsion Mastic with Various Active Fillers

Al-Mohammedawi, Ahmed; Mollenhauer, Konrad

doi:10.1007/978-3-030-48679-2_58

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…Besides applying LF slag as fillers and aggregates in concrete and mortars, their use was explored in bituminous [17,[97][98][99][100][101][102][103][104][105][106] mixtures. Asphalt is a type of hot bituminous mixture that forms on stone-on-stone contact.…”

Section: Formation Of Bituminous Materialsmentioning

confidence: 99%

Ladle Furnace Slag: Synthesis, Properties, and Applications

Jacob

2023

ChemBioEng Reviews

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Ladle slag is a byproduct formed during the ladle refining stage of steel making. It is a dusty material that has been considered industrial waste. Technical advancements towards a sustainable industry led to the development of different applications for ladle slag. Depending on the processing methods during the steel slag production and the weathering of the slag post‐production, the elemental composition of the steel slag largely varies. Owing to this, its characteristics cannot be generalized and specific applications depending on the sources are developed. It is generally used in construction materials, soil rejuvenation, and CO2 capture. This paper reviews the production process, the mineralogical and morphological properties, stabilization techniques, and the applications of ladle furnace (LF) slag. One of the prime focuses of waste remediation and sustainable industry is to find meaningful ways to turn waste into products. In this respect, a comprehensive review of the properties of LF slag and its current application will help provide a framework for the development of future sustainability goals. With increased slag usage, the ladle refining process of steelmaking can be turned into a more carbon‐neutral process.

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Section: Formation Of Bituminous Materialsmentioning

confidence: 99%

Ladle Furnace Slag: Synthesis, Properties, and Applications

Jacob

2023

ChemBioEng Reviews

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“…In this context, the mastic can be modified by various additives, such as active fillers. The addition of mineral fillers can significantly change the rheological response and fatigue damage resistance of the mastic [ 3 , 4 , 5 ]. In general, mineral fillers can be chemically grouped into active and inactive (or inert) fillers, depending on their reactivity within bitumen emulsion.…”

Section: Introductionmentioning

confidence: 99%

“…This mechanism affects the bitumen-filler affinity in terms of controlling the contact angle, surface tension, adhesion work, and cohesion between bitumen and fillers, which could affect the crack development mechanism (adhesive failure at the filler-bitumen interface region or cohesive failure within the bitumen) [ 26 ]. In this context, incorporating fillers could either manage the crack failures within the mastic matrix or, in some cases, make CBE mastic very stiff and sensitive to fatigue cracking [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Influence of the Chemical Nature of Fillers on Rheological and Fatigue Behavior of Bitumen Emulsion Mastic

Al-Mohammedawi

Mollenhauer

2020

Materials

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Cold Bitumen Emulsion (CBE) mixture technologies have been recently developed to lower pavement construction temperatures to reduce environmental costs and control gas emissions. Due to its poor early mechanical strength, active fillers (i.e., cement) have been used to obtain high early stiffness in order to have the potential for timely construction of the next layer. There is, however, a lack of understanding about the impact of active fillers on the viscoelastic behavior and fatigue damage resistance of CBE mastics. This study, therefore, aims to identify the influence of active fillers on the rheological properties and the resulting fatigue behavior of CBE mastic, supported by chemical analysis for the filler-bitumen emulsion. For this aim, bitumen emulsion was mixed separately with seven fillers/blended fillers to prepare the CBE mastics. Various experiments, including continuous pH monitoring tests (chemical reactivity of filler-bitumen emulsion), Strain Sweep (SS) tests, Temperature-Frequency Sweep (TFS) tests, Time Sweep (TS) tests, and Linear Amplitude Sweep (LAS) tests were conducted on the CBE binder and the prepared mastics. Results show that the rheological performance and the fatigue damage resistance depend not only on the filler inclusions but also on filler type and chemistry. On this basis, the rise in complex shear modulus and the decrease in the viscous component is associated with a significant enhancement in fatigue performance for specific fillers.

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“…The mastic constitutes an essential part of the CBE mixture; consequently, its behaviour is highly governed by its mastic. The rheological response of the mastic is significantly controlled by the inclusion of fillers [3]- [5]. With this in mind, mineral fillers can be chemically categorized into active and inactive fillers based on their reactivity.…”

Section: Introductionmentioning

confidence: 99%

A Study on The Influence of Chemical Nature of Fillers on Rheological and Fatigue Behaviour of Bitumen Emulsion Mastic

Al-Mohammedawi¹,

Mollenhauer²

2020

Preprint

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Recently Cold Bitumen Emulsion (CBE) mixture technologies have been developed to lower the pavement construction temperatures to reduce the environmental costs and control the gas emissions. Due to its poor early mechanical strength, active fillers (i.e. cement) have been used to obtain high early stiffness in order to have the potential for timely construction of the next layer. There is, however, a lack of understanding about the impact of active fillers nature on viscoelastic behaviour and fatigue damage resistance of CBE mastics. This study, therefore, aims to identify the influence of active fillers on the rheological properties and the resulted fatigue behaviour of CBE mastic, supported by chemical analysis for the filler-bitumen emulsion. For this aim, bitumen emulsion was mixed separately with seven fillers/blended fillers to prepare the CBE mastics. Various experiments include continuous pH monitoring tests (chemical reactivity of filler-bitumen emulsion), Strain sweep (SS) tests, Temperature-Frequency Sweep (TFS) tests, Time Sweep (TS) tests, and Linear Amplitude Sweep (LAS) tests were conducted on the CBE binder and the prepared mastics. Results show that the rheological performance and the fatigue damage resistance is not only dependent on the filler inclusions, but it significantly relies on filler type and chemistry. Based on that, the raise in complex shear modulus and the decrease in viscous components were associated with a significant enhancement in fatigue performance for specific filler.

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Viscoelastic Response of Bitumen Emulsion Mastic with Various Active Fillers

Cited by 4 publications

References 14 publications

Ladle Furnace Slag: Synthesis, Properties, and Applications

Ladle Furnace Slag: Synthesis, Properties, and Applications

A Study on the Influence of the Chemical Nature of Fillers on Rheological and Fatigue Behavior of Bitumen Emulsion Mastic

A Study on The Influence of Chemical Nature of Fillers on Rheological and Fatigue Behaviour of Bitumen Emulsion Mastic

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