Functionalization and Modification of Bitumen by Silica Nanoparticles

Zhambolova, Ainur; Vocaturo, Anna Lisa; Ongarbayev, Yerdos; Caputo, Paolino; Aiello, Iolinda; Rossi, Cesare Oliviero; Godbert, Nicolas

doi:10.3390/app10176065

Cited by 10 publications

(2 citation statements)

References 29 publications

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“…As expected, FM in our study was the highest for QuiXfil and decreased towards materials with lower filler contents, namely SDR and Tetric PowerFlow. Masouras et al [ 31 ] pointed out that the amount of filler is the most important factor for FM, while the shape and size of the filler play a minor role [ 32 , 33 , 34 ]. In addition to the filler content, Randolph et al [ 35 ] found that materials with pre-polymerised particles had lower FM values compared to the other materials tested.…”

Section: Discussionmentioning

confidence: 99%

Proposition of New Testing Procedure for the Mechanical Properties of Bulk-Fill Materials

Macan,

Marošević,

Špiljak

et al. 2023

Materials

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This study analysed flexural properties, microhardness, and the degree of conversion (DC) of five bulk-fill composites under clinically relevant conditions (4 mm thick specimens) in comparison to 2 mm specimens according to ISO 4049. Additionally, the effect of rapid polymerisation on 4 mm specimens was evaluated after accelerated aging. DC was measured using Fourier transform infrared spectrometry at 2 and 4 mm thick layers, while flexural properties and Vickers microhardness were tested using 16 × 2 × 2 mm or 16 × 2 × 4 mm specimens. Three polymerisation protocols were used: (I) “ISO”: 2 mm thickness, 1000 mW/cm2, double-sided; (II) “10 s”: 4 mm thickness, 1000 mW/cm2, one-sided; and (III) “3 s”: 4 mm thickness, 2600 mW/cm2, one-sided. Mechanical properties were tested after 1 day, after 10,000 thermocycles, and after 10,000 thermocycles followed by a 7-day immersion in absolute ethanol. The “ISO” protocol produced a higher DC and microhardness of all materials. Elastic modulus was significantly higher for the “ISO” protocol compared to the 4 mm specimens. The differences in flexural strength for all polymerisation protocols were equalised after thermocycling and immersion in absolute ethanol. All tested materials met the ISO 4049 flexural strength requirement (80 MPa) for all polymerisation methods and all aging conditions. Rapid polymerisation achieved nearly optimal properties (ISO), except for elastic modulus, which was significantly reduced in 4 mm samples.

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Section: Discussionmentioning

confidence: 99%

Proposition of New Testing Procedure for the Mechanical Properties of Bulk-Fill Materials

Macan,

Marošević,

Špiljak

et al. 2023

Materials

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“…Special increased requirements are placed on bitumen in the construction of highways of higher technical categories and in conditions of harsh continental climates. To improve the physical and mechanical characteristics of bitumen, they are currently being modified with the addition of various fillers [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Aging Process Effects on the Characteristics of Vacuum Residue Oxidation Products with the Addition of Crumb Rubber

et al. 2022

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This paper considers the effect of aging processes on viscoelastic characteristics of vacuum residue oxidation products modified with crumb rubber. Viscoelastic properties were compared to original bitumen raw material-vacuum residue and vacuum residue oxidation products during short-term and long-term aging. The complex shear modulus of the vacuum residue and its oxidation products decreased with an increase in temperature. Short-term aging resulted in increased shear modulus for all samples.The vacuum residue oxidation product modified with crumb rubber had the maximum values of the rutting parameter and fatigue parameter. There was an expansion of the temperature range of plasticity: for the vacuum residue oxidation product with crumb rubber, its value was 67.2 °C. The curves of the black diagram of the modified vacuum residue oxidation product are shifted towards smaller phase angles with the increase in the shear modulus, which indicates the increase in the stiffness and elasticity of the rubber bitumen binders. The vacuum residue oxidation product modified with crumb rubber corresponded to the rubber bitumen binder of the grade RBB 60/90, according to its physical and mechanical indicators.

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Influence of Surface Treated Montmorillonite Nano Clay on Oxidative Aging Properties of Bitumen

Patra

Panda

Das

2022

Lecture Notes in Civil Engineering

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Functionalization and Modification of Bitumen by Silica Nanoparticles

Cited by 10 publications

References 29 publications

Proposition of New Testing Procedure for the Mechanical Properties of Bulk-Fill Materials

Proposition of New Testing Procedure for the Mechanical Properties of Bulk-Fill Materials

Aging Process Effects on the Characteristics of Vacuum Residue Oxidation Products with the Addition of Crumb Rubber

Influence of Surface Treated Montmorillonite Nano Clay on Oxidative Aging Properties of Bitumen

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