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Adwani, Dheeraj (author), Pipintakos, Georgios (author), Mirwald, Johannes (author), Wang, Yudi (author), Hajj, Ramez (author), Guo, Meng (author), Liang, Meichen (author), Jing, R. (author), Varveri, Aikaterini (author)Oxidative aging induces significant stiffening of asphalt binders that leads to a pronounced reduction in the overall durability of asphalt pavements. The strategic implementation of antioxidant additives provides a potential solution to alleviate this issue. This work presents results from the second phase of the global consortium for...journal article 2024
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Jing, R. (author), Apostolidis, P. (author), Liu, X. (author), Naus, R. (author), Erkens, S. (author), Scarpas, Athanasios (author)Epoxy asphalt attracted the attention of road authorities in many countries as a solution for du-rable open-graded porous asphalt (OGPA) surface layers with enhanced longevity. Nevertheless, the recycla-bility of aged epoxy asphalt materials has not been thoroughly studied yet. This research presents an experi-mental program conducted in the...conference paper 2023
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Ma, L. (author), Seyed Salehi, H. (author), Jing, R. (author), Erkens, S. (author), Vlugt, T.J.H. (author), Moultos, O. (author), Greenfield, M.L. (author), Varveri, Aikaterini (author)Water transport is one of the major factors responsible for moisture damage in asphalt pavements. To study the thermodynamics and kinetics of water transport in bitumen and to uncover microscale mechanisms of moisture-induced damage, molecular dynamics simulations were performed for up to 600 ns for water–bitumen systems with realistic water...journal article 2023
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Ma, L. (author), Varveri, Aikaterini (author), Jing, R. (author), Erkens, S. (author)The chemical characterization of bitumen type and ageing state are fundamental in determining structural and mechanical properties of bitumen. This work aims to classify various bitumen types at different ageing states and to identify the primary chemical differences relevant to the classification. Fourier transform infrared (FTIR) spectral...journal article 2023
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Ren, S. (author), Liu, X. (author), Varveri, Aikaterini (author), Khalighi, S. (author), Jing, R. (author), Erkens, S. (author)The rejuvenation efficiency of aged bitumen is the main concern when developing rejuvenating agents. It is necessary to develop a method to assess the efficiency of rejuvenators using rheological parameters in the whole frequency region. To this end, the 2S2P1D micromechanics model is adopted to fit the entire G∗ master curves of various...journal article 2023
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Jing, R. (author), Apostolidis, P. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)Epoxy-asphalt (EA) attracted the attention of road authorities in many countries as a solution for open-graded porous surface layers with enhanced durability and longevity. This research presents an experimental programme to assess the durability of epoxy-modified open-graded porous asphalt (EMOGPA) mixes, emphasising the effects of the...journal article 2023
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Ren, S. (author), Liu, X. (author), Jing, R. (author), Gao, Y. (author), Lin, P. (author), Erkens, S. (author)Two types of elastomer/plastic compound-modified bitumen were developed by means of incorporating the reactive elastomeric terpolymer (RET) into the plastic (high-density polyethylene HDPE or recycled polyethylene RPE) modified bitumen and adding the wax residue (WR) into the bitumen/elastomer (crumb rubber CR or styrene–butadiene–styrene SBS)...journal article 2023
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Adwani, Dheeraj (author), Sreeram, Anand (author), Pipintakos, Georgios (author), Mirwald, Johannes (author), Wang, Yudi (author), Hajj, Ramez (author), Jing, R. (author), Bhasin, Amit (author)The design and use of antioxidant additives to reduce or slow down the aging of asphalt binders can bring about tremendous benefits to the asphalt industry. Despite many isolated and scattered research efforts showing mixed results, the application of this science to engineering-based solutions has been limited due to variability in results and...journal article 2023
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Ren, S. (author), Liu, X. (author), Gao, Y. (author), Jing, R. (author), Lin, P. (author), Erkens, S. (author), Wang, H. (author)This study aims to multiscale investigate the effects of rejuvenator type, temperature, and aging degree of bitumen on the diffusion behaviors of rejuvenators (bio-oil BO, engine-oil EO, naphthenic-oil NO, and aromatic-oil AO) in aged binders. The molecular dynamics (MD) simulation method is performed to detect the molecular-level diffusion...journal article 2023
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Jing, R. (author), Apostolidis, P. (author), Liu, X. (author), Naus, R. (author), Erkens, S. (author), Scarpas, Athanasios (author)This research aims to evaluate the potential environmental impact of epoxy-modified asphalt used as a pavement material for roadways in the Netherlands and identify what determines the environmental performance of the epoxy asphalt technology through life cycle assessment. Results indicated that the incor-poration of epoxy binder in asphalt...conference paper 2023
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Tušar, M. (author), Poulikakos, L. D. (author), Kakar, M. R. (author), Pasquini, E. (author), Pasetto, M. (author), Porot, L. (author), Wang, D. (author), Varveri, Aikaterini (author), Jing, R. (author)RILEM TC-279 WMR task group TG 1 studied the performance of waste Polyethylene (PE) in bituminous binders and bituminous mixtures. Several laboratories participated in this study following a common protocol. Locally sources aggregates and bituminous binder and same source of waste PE were utilized. The binder experiments showed that at high...book chapter 2023
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Moharekpour, Milad (author), Liu, Pengfei (author), Schmidt, Joshua (author), Oeser, Markus (author), Jing, R. (author)The Guide for Design of Pavement Structures (AASHTO 86/93) and Mechanistic Empirical Pavement Design Guide (MEPDG) are two common methods to design continuously reinforced concrete pavement (CRCP) published by the American Association of State Highway and Transportation Officials (AASHTO) in the USA. The AASHTO 86/93 is based on empirical...journal article 2022
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Pei, Zhongshi (author), Xu, Meng (author), Cao, Jiwei (author), Feng, Decheng (author), Hu, Wei (author), Ren, Junda (author), Jing, R. (author), Yi, Junyan (author)Asphalt aging often leads to rapid degradation of road performance, which seriously affects the service life of asphalt pavement. Exploring the influence of asphalt oil sources, asphalt grades, and filler types on asphalt microcharacteristics in the asphalt aging process can provide an essential reference to guide asphalt pavement maintenance...journal article 2022
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Ma, L. (author), Varveri, Aikaterini (author), Jing, R. (author), Kasbergen, C. (author), Erkens, S. (author)Moisture in bitumen and at the bitumen-aggregate interface affects the cohesive and adhesive properties of asphalt mixtures, which are critical for the service performance and durability of pavements. This paper aims to investigate the kinetics and thermodynamics of moisture transport in bitumen at various temperatures and relative humidity...journal article 2022
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Jing, R. (author), Apostolidis, P. (author), Liu, X. (author)In this study, a series of viscosity tests were performed to investigate various conditions, i.e. temperature, shear rate and dilution level, on the curing behavior of epoxy bitumen. The results show that curing rate of epoxy bitumen increased with temperature; high shear rate would interfere the formation of crosslinks in epoxy bitumen,...journal article 2022
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Niu, D. (author), Zhang, Zhao (author), Meng, Jiandang (author), Yang, Zhengxian (author), Jing, R. (author), Liu, X. (author), Lin, P. (author), Sheng, Yanping (author)The proper disposal of steel slag has always been a great challenge for the metallurgical industry in China and around the world. In this work, the steel slag aggregate (SSA) was surface pretreated (PSSA) and applied into asphalt mixture. The adhesive behavior between the bitumen and five different types of aggregates (i.e., limestone, diorite,...journal article 2022
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Zhang, Y. (author), Liu, X. (author), Ren, S. (author), Jing, R. (author), Lin, P. (author), Apostolidis, P. (author), Erkens, S. (author), Wang, Xuancang (author), Scarpas, Athanasios (author)Lignin, one of the most abundant natural polymers, has been extensively studied as an additive in bituminous binders. Even though the lignin improves the overall resistance against oxidative aging of bitumen, it could lead to high thermal cracking sensitivity. In this study, a bio-oil (i.e., rapeseed oil) is implemented in lignin-modified...journal article 2022
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Ren, S. (author), Liu, X. (author), Lin, P. (author), Jing, R. (author), Erkens, S. (author)This study aimed to explore the long-term aging influence on chemo rheological properties and develop novel consecutive models for the long-term aging reaction kinetics of bitumen. The results revealed that the aging index was significantly dependent on the types of selected parameters. The Zero-order model was suitable to describe the long-term...journal article 2022
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Zhang, Zhao (author), Liu, Kai (author), Chong, Dan (author), Niu, D. (author), Lin, P. (author), Liu, X. (author), Niu, Yanhui (author), Jing, R. (author)To purify severe air pollution in traffic-intensive urban areas and tunnels, an innovative type of photocatalytic micro-surfacing mixture (PMM) was designed, which was enhanced by polypropylene (PP) fiber and nano-TiO<sub>2</sub>. In this work, the road performance of sixteen PMMs with the different contents of PP and nano-TiO<sub>2</sub>...journal article 2022
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Jing, R. (author), Apostolidis, P. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)Pavement materials containing epoxy-asphalt are mainly used to enhance the fatigue cracking resistance of surfacing layers on bridges. These materials have also been proposed for roadways, but limited field data are available. In this research, a fully instrumented epoxy-modified asphalt surfacing layer was applied to measure strain responses in...journal article 2022