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Nahar, Sayeda (author), Porot, Laurent (author), Apostolidis, P. (author), Chailleux, Emmanuel (author)In the past years, the use of liquid additives as bitumen modifiers has increased to enhance or adjust the properties of bitumen for wide range of applications. Their molecular composition and mutual interaction result in a specific phase morphology in the binders. Hence, there is a need to evaluate the phase and interphase framework and...abstract 2022
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Apostolidis, P. (author), Porot, Laurent (author), Elwardany, Michael (author), Vansteenkiste, Stefan (author), Chailleux, Emmanuel (author)The RILEM TC 272 PIM (Phase and Interphase behaviour of innovative bituminous Materials) – TG1 Binder has initiated an inter-laboratory program investigating the phase and interphase behaviour of bituminous binders. Five laboratories evaluated the low temperature properties of seven standard and complex binders with differential scanning...abstract 2022
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Apostolidis, P. (author)The glass transition parameters are used to study the miscibility, or lack of it, in polymer modified asphalt binders. In this study, a<br/>quantitative assessment of the contribution of thermodynamics of mixing to glass transition was conducted in a differential scanning<br/>calorimetry for four asphalt binders modified with an elastomeric...abstract 2022
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Apostolidis, P. (author), Nahar, Sayeda (author), Liu, X. (author), Lommerts, Bert-Jan (author), Erkens, S. (author), Scarpas, Athanasios (author)The utilization of epoxy-based polymers as bituminous modifiers in developing durable and long-lasting pavement structures have gained increasing interest over the last years showing evidence of high performing materials (1-8). It has been noticed that the addition of epoxy-based modifier into bitumen lead to materials with superior...conference paper 2019
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Porot, Laurent (author), Chailleux, Emmanuel (author), Apostolidis, P. (author), Zhu, Jiqing (author), Margaritis, Alexandros (author), Tsantilis, Lucia (author)The asphalt industry is constantly working to enhance the performances of asphalt materials, introducing innovative and more sustainable solutions. In this context, the incorporation of materials, such as additives, polymers, is more and more used to improve the properties of neat bitumen. This leads to even more complex bituminous binders,...conference paper 2021
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Wang, H. (author), Apostolidis, P. (author), Zhang, H. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)Microwave heating is a promising heating technology for the maintenance, recycling and deicing of pavement structures. Many experimental studies have been conducted to investigate the microwave heating properties of asphalt mixtures in the laboratory. However, very few studies investigated the application of microwave heating on asphalt...conference paper 2020
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Apostolidis, P. (author), Wang, H. (author), Zhang, H. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)Oxidative aging is a complex phenomenon in bitumen and its fundamental understanding is needed to optimize paving materials with long-lasting characteristics. This research reports on a diffuse-reaction model for predicting the oxidation of bituminous binders over time and under different conditions. As known, the oxidation of bitumen is...conference paper 2020
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Apostolidis, P. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)In-depth understanding of the temperature effect on oxidative aging in epoxy-asphalt blends is needed to enable accurate predictions on material response through their service life. Details of the significance of developing prediction models and tools on oxidative aging of pavement materials are presented in a companion paper (Apostolidis et al....conference paper 2020
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Zhang, Y. (author), Liu, X. (author), Jing, R. (author), Apostolidis, P. (author), Erkens, S. (author), Scarpas, Athanasios (author)During oxidative aging, oxygen reacts with active molecules present in bitumen producing polar compounds, principally ketones and sulfoxides, and increasing in the portion of asphaltenes. In general, oxidation reactions in bitumen yields to change its generic chemical composition and finally its colloidal structure deteriorating the physico...conference paper 2020
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Wang, H. (author), Apostolidis, P. (author), Zhang, H. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)Fundamental models should be developed and utilized in order to facilitate the chemo-mechanical design of modified binder systems for paving applications but not only. Especially, the fact that the incorporation of new chemical substances used as bio-based modifiers or alternative binders is attracting great interest to replace traditional...conference paper 2020
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Pavlatos, N. (author), Apostolidis, P. (author), Scarpas, Athanasios (author)This research explores the incentives for replacing steel fibers with aluminum fibers in fiber modified bituminous mixes. In this work the focus is on fiber modified bituminous mixes especially designed for induction heating. Inductive fibers are heated up because eddy currents are generated - according to Joule’s law - when alternating magnetic...conference paper 2018
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Apostolidis, P. (author), Kasbergen, C. (author), Bhasin, A. (author), Scarpas, Athanasios (author), Erkens, S. (author)With the effort to predict precisely the lifetime of asphalt binders and subsequently optimize their utilization in a more economical way, the objective of this study was to introduce a new methodology to improve the fatigue characterization of asphalt binders through a new dynamic shear rheometer (DSR) sample testing geometry. Initially,...conference paper 2018
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- Apostolidis, P. (author), Liu, X. (author), Kasbergen, C. (author), van de Ven, Martin (author), Pipintakos, G. (author), Scarpas, Athanasios (author) conference paper 2018
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Zhou, C. (author), Liu, X. (author), Apostolidis, P. (author)Low Temperature Asphalt (LTA) technologies are utilized in asphalt pavement industry to lower energy demands and greenhouse gas emission during mixing and construction processes. Although these technologies are currently available and hope to demonstrate similar performance with Hot Mix Asphalt (HMA) mixes, LTA shows more sensitive than HMA to...conference paper 2017
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Apostolidis, P. (author), Liu, X. (author), Scarpas, Athanasios (author), van Bochove, G (author), van de Ven, Martin (author)The development of asphalt mixtures with improved electrical and thermal properties is crucial in terms of producing suitable mixtures for the induction heating without losing their durability. The main scope of this research is to evaluate experimentally the impact of filler-sized electrically conductive additives on the induction heating...conference paper 2016
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Apostolidis, P. (author), Liu, X. (author), Scarpas, Athanasios (author), van de Ven, Martin (author), van Bochove, G (author)The research reported in this paper focuses on utilization of advanced finite-element analyses (COMSOL) for the design and assessment of the induction heating capacity of asphalt mortar by adding electrically conductive additives (e.g., steel fibers), and to understand the factors that influence the mechanisms of induction heating in asphalt...conference paper 2016
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Apostolidis, P. (author), Liu, X. (author), Scarpas, Athanasios (author), van Bochove, G (author), van de Ven, Martin (author)This paper studied the induction heating and healing capacity of asphalt mortar by adding electrically conductive additives (e.g. iron powder and steel fibers), and examined the influence of different combinations of them on the mechanical response of asphalt mortars. Induction heating technique is this innovative asphalt pavement maintenance...conference paper 2016
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Zegard, A. (author), Smal, L. (author), Naus, R. (author), Apostolidis, P. (author), Liu, X. (author), van de Ven, Martin (author), Erkens, S. (author), Scarpas, Athanasios (author)The addition of epoxy modifier in bitumen is a relatively new modification technology (1-4) and the most critical epoxy polymerization-induced changes of the epoxy-bituminous materials are not fully understood. Different phenomena take place when epoxy modifiers are incorporated into bitumen and they are dependent on the material hardening...conference paper 2019
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Apostolidis, P. (author), Liu, X. (author), Zhang, M (author), van de Ven, Martin (author), Erkens, S. (author), Scarpas, Athanasios (author)The addition of epoxy modifier in bitumen is a relatively new modification technology (1-4) and the most critical epoxy polymerization-induced changes of the epoxy-bituminous materials are not fully understood. Different phenomena take place when epoxy modifiers are incorporated into bitumen and they are dependent on the material hardening...conference paper 2019
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Apostolidis, P. (author), Daniel, Gerald C. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)The utilization of synthetic fibers has been reported in the past (1-8) showing enhancement of fatigue and thermal cracking resistance in asphaltic materials. However, the limited evidences about the benefits of these fibres in asphaltic materials at low material scales have been noticed. Also, the exact reinforcing mechanism of binding system...conference paper 2019