Application of Atomic Force Microscopy as Advanced Asphalt Testing Technology: A Comprehensive Review

Ouyang, Qijian; Xie, Zhihua; Liu, Jinhai; Gong, Minghui; Yu, Huayang

doi:10.3390/polym14142851

Cited by 21 publications

(3 citation statements)

References 119 publications

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“…The 2D scanning image obtained by AFM clearly shows that the image consists of two main parts, namely the “bee-like structure” and the matrix phase. The area with alternating black and white bee-like shapes is called the “bee-like structure”, and the area around the “bee-like structure” is the matrix phase [ 33 ]. The number, maximum individual area, average area, total area, and area ratio of the bee-like structures in the 2D scans were counted using Image Pro-plus (IPP) software 6.0, and the results are shown in Table 5 .…”

Section: Test Results and Discussionmentioning

confidence: 99%

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Zhao,

Song,

Wei

et al. 2023

Materials

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The drainage of asphalt pavement requires the use of a large amount of high-viscosity-modified asphalt, which faces the service environment under dynamic water erosion. The feasibility of recycling high-viscosity-modified asphalt should be investigated to facilitate sustainable infrastructure construction. This study used ultrasonic equipment to simulate dynamic water erosion test conditions and tested the adhesion performance of different types of recycled high-viscosity asphalt at various environmental temperatures. The adhesion energy index and microstructure of recycled high-viscosity asphalt were analyzed using the contact angle test and AFM test. The results demonstrate that the higher the environmental temperature, the worse the anti-stripping performance of recycled high-viscosity asphalt. From the perspective of adhesion performance indicators, a 6% recycling agent dosage is more conducive to restoring the performance of aged high-viscosity -modified asphalt. The AFM test showed that the microstructure of high-viscosity -modified asphalt represented significant changes with an increase in the recycling agent content, and the change in the adhesion force of recycled high-viscosity -modified asphalt was consistent with the results of macroscopic adhesion performance tests. This study illustrates the applicability of implementing regeneration technology for the recycling of aged drainage asphalt pavement.

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Section: Test Results and Discussionmentioning

confidence: 99%

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Zhao,

Song,

Wei

et al. 2023

Materials

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“…The possibility of a more detailed study of the microstructure of bitumen compositions is provided by atomic force microscopy (AFM), which allows to obtain statistically reliable information about the morphological features of the emerging structures [19,20], ultimately influencing the performance properties of the bitumen binder. Previously, the authors investigated the effect of the microstructure of the interfacial zone between filler particles and bitumen binder on the strength of the asphalt concrete mixture and found that the modulus and hardness of asphalt mortar decrease with the increases in the aggregate surface distance and then keep stable [21].…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Microstructure and Viscosity of Modified Bitumen on the Strength of Asphalt Concrete

Dyuryagina,

Byzova,

Ostrovnoy

et al. 2024

Polymers

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The purpose of these studies was to establish the influence of the microstructural and rheological characteristics of modified bitumen compositions on the strength indicators of asphalt concrete. The effect of additives concentration on the rheological characteristics and microstructure of binary “bitumen–surfactant”, “bitumen-AG-4I”, and ternary “bitumen-AG-4I-AG-4I” systems has been studied. To assess the effect of bitumen dispersion on the physical and mechanical characteristics of modified asphalt concrete samples, the compressive strength value was determined. The following chemicals have been used as additives: the original product AS-1, industrial additive AMDOR-10, and used sealant AG-4I, a product based on polyisobutylene and petroleum oils. At an increased content of AG-4I (C ≥ 1.0 g/dm3) in ternary systems, the contribution of the emerging intermolecular polyisobutylene network to the development of structuring processes increases while the viscous effect of the surfactant AS-1 decreases. It has been established that the minimum size of bee-like bitumen structures (1.66 µm) is recorded with the joint presence of additives in the bitumen, AS-1 at a level of 1.0 g/dm3 and AG-4I at a level of 1.0 g/dm3. Under the same concentration regimes of the ternary bitumen composition, the maximum increase in compressive strength RD was achieved with the smallest size of bee-like structures of modified bitumen.

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“…To overcome the limitation of the optical microscopy, scanning probe microscopy such as the atomic force microscopy (AFM) was used. The microstructure of an asphalt binder was thought to be better understood using AFM and sample preparation was also found to be simpler [3].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Colloidal Nanosilica on Microstructure of Asphalt Binder After Long-Term Aging

Samsudin¹,

Arshad

Masri

et al. 2023

Construction Technologies and Architecture

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The use of Atomic Force Microscopy (AFM) to observe the microstructure of asphalt binder promises a better insight compared to other microscopy techniques. In this study, AFM was used to investigate the effect of nanosilica concentration and aging conditions on the microstructure of asphalt binders. Asphalt binder penetration grade of 60/70 was modified with nanosilica (NS) by varying its concentration ranging from 1% to 5% (with the increment of 1%). Nanosilica modified binder (NSMB) were aged using a pressure aging vessel (PAV). The microstructure of the NSMB before and after aging were characterized using tapping mode of the atomic force microscopy (AFM). The effect of nanosilica (NS) addition and PAV ageing on the phase distribution, size of ‘bee’ structure and surface roughness of the asphalt binder were investigated. Based on this study, it was found that the addition of NS into asphalt binder tended to increase the distribution of the catana phase, as well as increasing the size of the bee structure and surface roughness of the AFM image. Besides that, the after long-term ageing was applied, the number of the bee structure and distribution of catana and peri phase also increased. It can be concluded that the addition of NS and aging increased the overall surface stiffness of the bitumen and has made the material surface more solid-like.

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Application of Atomic Force Microscopy as Advanced Asphalt Testing Technology: A Comprehensive Review

Cited by 21 publications

References 119 publications

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

The Effect of the Microstructure and Viscosity of Modified Bitumen on the Strength of Asphalt Concrete

The Influence of Colloidal Nanosilica on Microstructure of Asphalt Binder After Long-Term Aging

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