Data on the engineering properties of aluminum dross as a filler in asphalt

Busari, A. A.; Snyman, Jacques; Kupolati, Williams Kehinde; Ndambuki, Julius M.; Sadiku, Emmanuel Rotimi; Loto, Roland Tolulope; Sagay, Anthony

doi:10.1016/j.dib.2020.105934

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…The initial setting time creases from 178 min to 225 min. The fact that the volcanic ash reaction of SAD is lo than that of WFA leads to delay in the setting of cement [31,32]. It can be observed Figure 10 that the increasing rate of the initial setting time is 0%-26.7%.…”

Section: The Initial Setting Time Of Uhpcmentioning

confidence: 94%

The Properties of Ultra-High-Performance Concrete with Assembly Unit of Secondary Aluminum Dross and Waste Fly Ash

Sun,

Shi,

Wang

2024

Coatings

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Waste fly ash (WFA) and secondary aluminum dross (SAD) are common solid wastes inducing environmental pollution. These materials contain certain active substances that can be used in cement-based materials. Therefore, cement concrete can be used to solidify these solid wastes. In this study, the influence of the assembly unit of secondary aluminum dross (SAD) and waste fly ash (WFA) on the properties of ultra-high-performance concrete (UHPC) is investigated. The slump flow, the plastic viscosity, the yield shear stress, and the initial setting time of fresh UHPC are measured. Moreover, the flexural and compressive strengths and the dry shrinkage rate (DSR) are determined. The electrical resistance and reactance are tested. The electron microscopy spectroscopy (EDS), thermogravimetric analysis (TG), and X-ray diffraction spectrum (XRD) curves are obtained for revealing the mechanism of macroscopic performances. Results show that due to the optimal specific surface area and the volcanic ash effect, the UHPC with the assembly unit of 50% SAD and 50% WFA provides the highest slump flow, DSR, and mechanical strengths, while the corresponding plastic viscosity, yield shear stress, and electrical resistance are the lowest. The SAD can delay the setting time of UHPC. The relationship between the electrical resistance or the electrical reactance and the mass ratio of SAD accords with the quadratic function. The corresponding electrical resistance is the lowest. The relationship between the mechanical strengths and the electrical resistance fits with the cubic function. The leaching amounts of Zn and Cr increase in the form of cubic function with the immersing time. Meanwhile, the SAD can decrease the Zn and Cr by 0%–46.3% and 0%–45.2% respectively. As obtained from the EDS results, the element of Al is increased by adding SAD. The XRD curves show that the crystals of Al2O3 are increased and the SiO2 crystals are decreased by the added SAD. UHPC with 50% SAD exhibits the highest compact microstructures and the least Ca(OH)2 and 3CaO·SiO2 hydration products. The TG results show that UHPC with 50% SAD shows the lowest TG values of all the groups. This research will provide new UHPC materials and techniques applied in solidifying the WFA and SAD in the future.

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Section: The Initial Setting Time Of Uhpcmentioning

confidence: 94%

The Properties of Ultra-High-Performance Concrete with Assembly Unit of Secondary Aluminum Dross and Waste Fly Ash

Sun,

Shi,

Wang

2024

Coatings

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“…The influence over the TES performance of operational variables such as the charge and discharge thermal power, and consequently the time duration of the TES, and the operating temperatures has been assessed via dedicated sensitivity analysis. Different solid filler materials, whose main thermodynamic properties are listed in Table 1 [37,[46][47][48], have also been investigated. When changing operating conditions or solid filler materials the TES dimensions have been kept unchanged, so equal to the ones calculated for the base case using commercial ceramics operating between 200 • C and 800 • C.…”

Section: Storage Multi-objective Design Optimizationmentioning

confidence: 99%

Design Optimization of an Innovative Layered Radial-Flow High-Temperature Packed Bed Thermal Energy Storage

Trevisan,

Guedez

2023

Preprint

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“…Secondary aluminum ash (SAA) has been proven to increase the mechanical strengths and the resistance to freeze-thaw cycles and the chloride ion impermeability [18]. The addition of secondary aluminum ash can reduce the early hydration of cement, thus decreasing the internal cracks in cement-based materials [19,20]. Gireesh points out that the secondary aluminum ash can increase the mechanical strength of cement concrete with a curing age of higher than 14 days [21].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Secondary Aluminum Ash on the Properties of Reactive Powder Concrete

Wang

Tian

2023

Materials

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Secondary aluminum ash is a kind of common solid waste which will pollute the environment without any treatment. In this study, the influence of secondary aluminum ash on the rheological properties and the initial setting time of fresh reactive powder concrete (RPC) are researched. Meanwhile, the mechanical properties and the drying shrinkage rates of RPC with the secondary aluminum ash are determined. The electrical parameters of RPC with the secondary aluminum ash are measured. Scanning electron microscopy is obtained to reflect the internal structure of RPC. Results show that the addition of secondary aluminum ash can lead to decreasing the fluidity and increase the yield shear stress of fresh RPC paste by varying rates of 16.1% and 58.3%, respectively. The addition of secondary aluminum ash can decrease the flexural and compressive strengths of RPC cured for 1 day by the decreasing rates of 0~18.7% and 0~19.3%. When the curing age is 28 days, the flexural and compressive strengths of RPC are increased by 0~9.1% and 0~19.1% with adding the secondary aluminum ash. The secondary aluminum ash can promote the condensation of RPC. The addition of the secondary aluminum ash can decrease the electrical resistance of RPC by an order of magnitude. The relationship between the electrical resistance and the electrical reactance fits the quadratic function equation. The electrical resistance of the pore solution increases in the form of a quadratic function with the mass ratio of the secondary aluminum ash. The dry shrinkage rates of RPC cured for 1 day and 28 days are decreased by 0~36.4% and 0~41.3% with the increasing dosages of secondary aluminum ash. As obtained from the microscopic testing results, the secondary aluminum ash can improve the compactness of hydration products.

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Data on the engineering properties of aluminum dross as a filler in asphalt

Cited by 5 publications

References 9 publications

The Properties of Ultra-High-Performance Concrete with Assembly Unit of Secondary Aluminum Dross and Waste Fly Ash

The Properties of Ultra-High-Performance Concrete with Assembly Unit of Secondary Aluminum Dross and Waste Fly Ash

Design Optimization of an Innovative Layered Radial-Flow High-Temperature Packed Bed Thermal Energy Storage

The Effect of Secondary Aluminum Ash on the Properties of Reactive Powder Concrete

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