Digital image processing of warm mix asphalt enriched with nanocolemanite and nanoulexite minerals

Kütük-Sert, Tuba; Öztürk, M. Kemal; Kutuk, Sezai

doi:10.1016/j.conbuildmat.2023.132542

Cited by 9 publications

(6 citation statements)

References 33 publications

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“…These images showcase the uniform integration of finely powdered microalgae, subjected to 6 h of ball milling, across MBBs with 30% (Figure 5a), 40% (Figure 5b), 50% (Figure 5c), and 60% (Figure 5d) microalgae contents. The blue circle was utilized to highlight the uniformly mixed microalgae, whereas the red circle emphasized areas displaying irregularly shaped microalgae particles and agglomeration, attributed to the influence of van der Waals forces of attraction [38]. The XRD spectrum demonstrated that, in the case of MBBs, the unique peaks of EVA are significantly broad due to the inherent amorphous nature of the polymer (Figure 6).…”

Section: Resultsmentioning

confidence: 99%

Enhancing Microalgae Content in Biocomposites through a Mechanical Grinding Method

Kim,

Chang

et al. 2023

Polymers

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Microalgae-based biocomposites are gaining traction as ecofriendly and cost-effective alternatives to conventional petroleum-based plastics. However, achieving a homogeneous dispersion of microalgae within a biocomposite matrix remains a challenge. In this study, we investigated the effect of the size of dried microalgae (Chlorella sp.) on the quality of biocomposites. Ball milling, a mechanical grinding process, was used to control the size of the pretreated dried microalgae. Our results demonstrate that the microalgae size strongly depends on the total weight of the stainless-steel balls, rather than the number of balls used in the milling process. Poly(ethylene-vinyl acetate) (EVA), with functional groups resembling those of Chlorella sp., was incorporated into the ball-milled microalgae to produce homogeneous biocomposites. Smaller Chlorella sp. particles improved the ratio of microalgae and the mechanical properties of the biocomposites. Dried Chlorella sp. particles up to 161.43 μm, which were 72.84% smaller than the untreated microalgae, were obtained after 6 h of ball milling using 3/8-inch balls. This enabled the production of biocomposites with 60 wt.% microalgae and 61.02% of the tensile strength of pure EVA, comparable to traditional polymers. Our findings suggest that controlling the microalgae size through ball milling can improve the quality of microalgae-based biocomposites.

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Section: Resultsmentioning

confidence: 99%

Enhancing Microalgae Content in Biocomposites through a Mechanical Grinding Method

Kim,

Chang

et al. 2023

Polymers

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“…decreased [83,84]. Under these conditions, the high-temperature water molecules diffused within the interface between the asphalt and steel slag aggregates at a relatively high speed with considerable destructive force.…”

Section: Microscopic Testmentioning

confidence: 95%

“…In Figure 9, the asphalt film on the surface of the steel slag aggregates peeled off after 6 d-80 • C H 2 O immersion, indicating that the surface area between the steel slag aggregates and asphalt film becomes smaller; the ITZ also increased, while the adhesion force decreased [83,84]. Under these conditions, the high-temperature water molecules diffused within the interface between the asphalt and steel slag aggregates at a relatively high speed with considerable destructive force.…”

Section: Microscopic Testmentioning

confidence: 98%

Research on Water Stability and Moisture Damage Mechanism of a Steel Slag Porous Asphalt Mixture

Chen,

Zhang,

Yao

et al. 2023

Sustainability

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A steel slag porous asphalt (SSPA) mixture, as the surfacing layer of permeable asphalt pavements, not only ensures the pavement surface drainage and noise reduction functions, but also improves the comprehensive utilization of steel slag resources and the inherent protection of the ecological environment. However, compared with ordinary asphalt mixtures, SSPA is more susceptible to water damage, such as scouring and frost swelling caused by external rainwater intrusion, resulting in the deterioration of the pavement performance. Therefore, it is of good practical imperative to study the water stability and moisture damage mechanism of SSPAs. In this study, the water stability of SSPA, that was subjected to a series of time–temperature H2O-immersion schemes, was investigated using the pull-out and H2O-immersion Marshall tests, whilst the microscopic mechanism of moisture damage was studied using the scanning electron microscopy (SEM), Fourier infrared spectroscopy (FTIR), and X-ray diffraction (XRD) tests. The corresponding results showed that: (a) with the increase in the H2O immersion time, the water stability of SSPA first increased and then decreased; and (b) the water stability of SSPA was strong under medium-temperature H2O-immersion or short-term high-temperature H2O-immersion. SEM, on the other hand, showed that the transition zone spacing was closely related to the chemical adhesion mechanism between the asphalt and steel slag aggregate. Additionally, the FTIR analysis further showed that the steel slag asphalt mastic spectra had new absorption peaks at 3200~3750 cm−1, inherently indicating the existence of chemical bonding between the asphalt and steel slag, with the XRD results showing that CaSO4·2H2O had a beneficial effect on the water stability of SSPA.

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“…According to the LDS curve, the Y 1−x Yb x VO 4 solid solution was found to have bimodal distribution, that is, it does not have a homogeneous distribution. It is known that when a material is milled using high-energy ball milling technique, the milled material can be reduced to the nanosize and may have an inhomogeneous distribution [51,52]. Next, it was determined which oxygen polyhedrons of yttrium and ytterbium comprise the structure of the mechanochemically obtained solution Y 1−x Yb x VO 4 .…”

Section: Mechanochemical Synthesismentioning

confidence: 99%

Synthesis and Basic Properties of Y1−xYbxVO4 Obtained by High-Energy Ball Milling and High-Temperature Treatment

Piz,

Filipek,

Klukowski

et al. 2023

Sustainability

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The main objective of this work was to experimentally confirm that a continuous, substitutional solid solution of a general formula Y1−xYbxVO4 is formed in the pseudo-binary system YVO4–YbVO4, and to investigate its basic unknown properties as a function of composition for 0.00 < x < 1.00. To date, such a solid solution has been obtained and characterized to a limited extent, but only for a few selected compositions. This solution was obtained by a high temperature and, for the first time, using mechanochemical methods. For the solution obtained by the high-energy ball-milling method, unknown physicochemical properties were established over its entire range of homogeneity. The solution was synthesized from mixtures of yttrium orthovanadate (V) with ytterbium (III) orthovanadate (V) of different compositions and investigated by XRD, IR, SEM, and UV-Vis(DRS) methods. It was found that Y1−xYbxVO4 crystallizes in a tetragonal system. The results confirmed that the solid solution Y1−xYbxVO4 has a structure of YVO4 and YbVO4, and its structure is composed of YbO6 and YO6 octahedrons and VO4 tetrahedrons. Moreover, if the parameter (x) in the solid solution Y1−xYbxVO4 increases, its crystalline lattice contracts and the value of the energy gap decreases. This solid solution is stable in the air atmosphere at least up to ~1500 °C. The estimated band gap for this solid solution indicates that it belongs to the semiconductors.

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Digital image processing of warm mix asphalt enriched with nanocolemanite and nanoulexite minerals

Cited by 9 publications

References 33 publications

Enhancing Microalgae Content in Biocomposites through a Mechanical Grinding Method

Enhancing Microalgae Content in Biocomposites through a Mechanical Grinding Method

Research on Water Stability and Moisture Damage Mechanism of a Steel Slag Porous Asphalt Mixture

Synthesis and Basic Properties of Y1−xYbxVO4 Obtained by High-Energy Ball Milling and High-Temperature Treatment

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