Article
Green & Sustainable Science & Technology
Chaofei Dong, Liqun Feng, Yafeng Xu
Summary: This study collected and analyzed 11 years of temperature data in the Xinjiang region, and drew a performance grading map of asphalt pavement in Xinjiang using the ArcGIS platform. Xinjiang was divided into nine performance zones. Additionally, the performance grades of five types of asphalt binders in Karamay were explored, showing that there was little difference in continuous performance grade span between different matrix asphalt binders. The addition of SBS modifier improved the continuous performance grade span by about 20°C compared to matrix asphalt, and SBS-modified asphalt also exhibited better durability in indoor testing of asphalt mixture.
Article
Construction & Building Technology
Zhe 'Alan' Zeng, B. Shane Underwood, Cassie Castorena
Summary: The dynamic shear rheometer (DSR) can be used as an alternative method to the bending beam rheometer (BBR) test, predicting the performance of BBR using the time-temperature superposition principle and linear viscoelastic interconversion. Compared to BBR, DSR method has higher testing efficiency and lower specimen preparation difficulty.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Construction & Building Technology
Hamzeh F. Haghshenas, Robert Rea, Gerald Reinke, Martins Zaumanis, Elham Fini
Summary: This study found that recycling agents can affect the softening and long-term performance of modified binders, but only a few can restore the rheological properties of binders. Experimental results show a strong linear relationship between the colloidal index and the chemo-rheological properties of binders.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yun Su Kim, Johannes Buechner, Michael P. Wistuba, Jose Rodriguez Agudo, Mrinali Rochlani, Michael Schaeffler
Summary: A novel Three-Point Bending Beam Test (3-PBT) using a Dynamic Shear Rheometer (DSR) is introduced for testing asphalt binder at low temperature conditions. Compared to the traditional Bending Beam Rheometer (BBR) tests, the 3-PBT in DSR has several advantages, including the elimination of harmful cooling medium, lower amount of asphalt binder required, easier specimen preparation with silicone rubber mold, and a more practical loading protocol. The precision of the 3-PBT in DSR is found to be satisfying, and the results correlate well with the BBR tests.
FRONTIERS IN MATERIALS
(2022)
Article
Chemistry, Physical
Chiara Tozzi, Davide Dalmazzo, Orazio Baglieri, Ezio Santagata
Summary: The paper discusses the experimental evaluation and modeling of physical hardening in asphalt binders. The results confirm the significant influence of hardening on the creep response of asphalt binders, which can be quantitatively assessed using appropriate rheological parameters and the loading time-conditioning time superposition principle. Two mechanical models were used to describe the physical hardening effects, and the improved model showed better prediction accuracy. The study highlights the practical implications by suggesting ranking criteria for the evaluation of asphalt binders.
Article
Geosciences, Multidisciplinary
Nurul Aliah Amirah Mazalan, Mohd Khairul Idham Mohd Satar, Azman Mohamed, Muhammad Naqiuddin Mohd Warid
Summary: This paper discusses the influence of asphaltene, one of the components of asphalt binder, on the rheological properties of asphalt binder and mastic. Adding 1% asphaltene can enhance viscosity, stiffness, and rutting resistance. Among the three types of asphalt binder, PG76 binder has the best rut-resistance performance. Increasing the asphaltene content is recommended for future research.
PHYSICS AND CHEMISTRY OF THE EARTH
(2023)
Article
Green & Sustainable Science & Technology
Jiandong Huang, Xin Li, G. Shiva Kumar, Yihao Deng, Minghui Gong, Niya Dong
Summary: The study shows that waste toner (WT) can be used as an asphalt modifier to improve the rheological properties of asphalt binders and enhance their performance, especially in high-temperature, intermediate temperature fracture, low-temperature cracking, and moisture sensitivity properties.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
Gohar Alam, Imran Hafeez, Ghulam Yaseen, Muhammad Ali Nasir, Azhar Hussain, Naveed Ahmad
Summary: This research study examined the aging potential in asphalt binder under specific environmental conditions by simulating field aging using a Thermal Cycler. Various additives were used to study their influence on the aging sensitivity of the binder. Results showed that aging increases oxidation and more oxygen content formation, and the amount of aging in the Thermal Cycler was equivalent to 28 days of aging in the standard laboratory method. Graphene nanoplatelets modified bitumen was found to effectively retard aging rate, while Sulphur and Methane Phosphorus Compound were more sensitive to thermo-oxidative aging.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Engineering, Environmental
Di Wang, Andrea Baliello, Lily Poulikakos, Kamilla Vasconcelos, Muhammad Rafiq Kakar, Gaspare Giancontieri, Emiliano Pasquini, Laurent Porot, Marjan Tusar, Chiara Riccardi, Marco Pasetto, Davide Lo Presti, Augusto Cannone Falchetto
Summary: Significant volumes of waste materials like plastics are generated annually worldwide, potentially impacting the environment. By using waste plastics as asphalt modifiers, paving material properties can be improved while reducing disposed waste. Plastic modifiers were found to increase complex shear modulus and softening point temperature of asphalt binder while decreasing penetration value.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Construction & Building Technology
Xiaolong Li, Junan Shen, Tianqing Ling, Fugen Yuan
Summary: This study explored the fatigue performance of porous asphalt mixtures produced with epoxy asphalt binders, and found that the use of epoxy asphalt binder can greatly improve the fatigue resistance of porous mixtures. The study also found that long-term aging decreases the fatigue life of porous mixtures, and that loading sequence has a significant influence on the damage accumulation of the mixtures.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2022)
Article
Construction & Building Technology
Seyed Reza Omranian, David Hernando, Ali Arab, Meor Othman Hamzah, Choong Kok Keong, Cedric Vuye, Wim Van den Bergh
Summary: This study validated the empirical approach proposed by Shalaby to model short-term aging of asphalt binders, showing that it can accurately predict the effects of aging duration and temperature on binder performance.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Environmental
Ashley F. Buss, Benjamin S. Claypool, Jonathan R. Higgins, Carlton Travis, Stacy Glidden
Summary: The study emphasizes the importance of low-temperature pavement performance in freezing areas in northern climates and the impact of recycled asphalt materials on pavement performance. Through laboratory testing and correlation studies, it was found that binders from different sources and blends with recycled asphalt can result in changes in the Delta T-c parameters.
JOURNAL OF COLD REGIONS ENGINEERING
(2021)
Article
Construction & Building Technology
Johannes Buechner, Michael P. Wistuba
Summary: In this article, creep properties of asphalt binders, asphalt mastics, and asphalt mixtures are tested and comparatively analyzed. The results show that the creep behavior of asphalt mixtures is significantly affected by the asphalt binder.
ROAD MATERIALS AND PAVEMENT DESIGN
(2022)
Article
Construction & Building Technology
Haisheng Ren, Zhendong Qian, Weirong Huang, Huailong Li, Gang Liu
Summary: In this study, four types of waterborne epoxy asphalt emulsion mastics were prepared by adding Portland cement and limestone dust as mineral filler. The results show that WEA-cement mastics, especially anionic mastics, had excellent high-temperature deformation resistance, while non-chemical interaction between limestone dust and WEA resulted in a slight improvement in the high-temperature performance of WEA-limestone mastics. Furthermore, the rheological parameters of all four WEA mastics were significantly correlated with the F/WEA ratio, with a greater impact on WEA-limestone mastics.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Johannes Buechner, Dawid Rys, Stefan Trifunovic, Michael P. Wistuba
Summary: A novel relaxation test using a DSR is proposed to evaluate asphalt binder low temperature properties. Different rheometers from different manufacturers are used to analyze seven asphalt binders, and different material parameters are derived to evaluate and discriminate the binders. The test results of the three instruments are found to be identical. Results are compared to BBR testing and a linear correlation for the BBR characteristic m-value is identified.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Marjan Tusar, Muhammad Rafiq Kakar, Lily D. Poulikakos, Emiliano Pasquini, Andrea Baliello, Marco Pasetto, Laurent Porot, Di Wang, Augusto Cannone Falchetto, Davide Dalmazzo, Davide Lo Presti, Gaspare Giancontieri, Aikaterini Varveri, Rosa Veropalumbo, Nunzio Viscione, Kamilla Vasconcelos, Alan Carter
Summary: Inter-laboratory experiments were conducted to evaluate the impact of directly blending plastic waste into bitumen and to assess the properties of the blends using various testing methods. The experiments showed that the addition of plastic waste does not chemically alter the bitumen. The performance of the blends varied with temperature, with the bitumen and plastic waste behaving elastically at low temperatures and the bitumen becoming viscoelastic at higher temperatures. Furthermore, the blends with plastic waste exhibited better fatigue performance in terms of stress and fatigue life.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Construction & Building Technology
Chiara Riccardi, Di Wang, Michael P. Wistuba, Axel Walther
Summary: This study evaluated the effects of high content reclaimed asphalt pavement (RAP) on the mechanical properties of fibre reinforced asphalt mixtures (FRAM) and investigated the low temperature performance. The results showed that the addition of polyacrylonitrile fibres worsens the moisture susceptibility resistance but improves other mechanical properties.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Engineering, Environmental
Chiara Riccardi, Irune Indacoechea, Di Wang, Pedro Lastra-Gonz, Augusto Cannone Falchetto, Daniel Castro-Fresno
Summary: The effects of adding fibers and Reclaimed Asphalt Pavement (RAP) on the low temperature performances of open graded and dense asphalt mixtures were investigated. Two types of fibers were used: aramid and poly-olefins fibers for reinforced porous asphalt and polyacrylonitrile fibers for conventional dense asphalt. The addition of fibers showed no significant effects on the low temperature strength but improved failure temperature and crack propagation resistance. The combination of fibers and RAP in mixtures designed with higher binder content can also be beneficial, suggesting further research on mix design is needed.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Characterization & Testing
Di Wang, Andrea Baliello, Gustavo dos Santas Pinheiro, Lily D. Poulikakos, Marjan Tusar, Kamilla L. Vasconcelos, Muhammad Rafiq Kakar, Laurent Porot, Emiliano Pasquini, Gaspare Giancontieri, Chiara Riccardi, Marco Pasetto, Davide Lo Presti, Augusto Cannone Falchetto
Summary: This article investigates the effect of waste polyethylene (PE) on the rheological behavior of modified asphalt binders. Experimental tests were conducted using interlaboratory testing results. Statistical analysis is introduced to identify sensitive rheological parameters and determine thresholds. Results show that phase angle measured above 28 degrees C and 1.59 Hz can be used as a sensitive parameter to distinguish different rheological behaviors of PE modified binders.
JOURNAL OF TESTING AND EVALUATION
(2023)
Article
Construction & Building Technology
Johannes Buechner, Michael P. Wistuba, Sebastian Miesem, Michael Neliepp, Michael Dietzsch, Mario Sandor
Summary: In this study, three different rejuvenators were blended with a differently-aged penetration graded asphalt binder 50/70 and evaluated using various rheological test methods. The efficiency of the rejuvenators was assessed using characteristic temperatures and corresponding phase angles, and the required dosage of rejuvenator was determined. Different rejuvenators showed slight variations in performance, and linear blending laws could lead to inaccurate dosage calculation, especially for high dosages. It was found that the required dosage of rejuvenator differed in the high-temperature range compared to the intermediate temperature range. The blending lines of different rejuvenators were helpful in evaluating their effectiveness in the high-temperature range. Moreover, relaxation tests appeared to be suitable for assessing performance at low temperatures.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Green & Sustainable Science & Technology
Zhongcai Huang, Rong Lu, Zhiyu Fu, Jingxiao Li, Pengfei Li, Di Wang, Ben Wei, Weining Zhu, Zujian Wang, Xinyu Wang
Summary: This paper investigates the low-temperature viscoelastic properties of polymer-modified asphalt (PMA) using gray relational analysis based on a bending beam rheometer (BBR). The results show that there are contradictions when considering the low-temperature deformation capacity or the stress relaxation capacity of PMA alone. The modulus and relaxation capacity should be considered when selecting investigation indexes for the low-temperature viscoelastic properties of PMA.
Article
Construction & Building Technology
Zhongcai Huang, Xianwu Ling, Di Wang, Pengfei Li, Huaquan Li, Xinyu Wang, Zujian Wang, Rong Wei, Weining Zhu, Augusto Cannone Falchetto
Summary: This study evaluates the high- and low-temperature rheological properties of a high-viscosity modified asphalt (HVMA) binder. The results show that the incorporation of high-viscosity modifiers reduces the unrecoverable creep compliance and increases the creep recovery rate of the asphalt binder. The study suggests using MSCR to evaluate high-temperature properties and dissipation energy ratio and m/S value for low-temperature properties in the evaluation of HVMA binders.
Article
Green & Sustainable Science & Technology
Teng Wang, Xianwu Ling, Jun Lin, Bing Xiang, Dongdong Yuan, Wentong Wang, Di Wang, Dedong Guo
Summary: It is found that blending behavior is the main factor affecting the actual and design performance of hot recycled asphalt mixtures. The component changes of asphalt mixtures were studied using thin-layer chromatography and flame ionization detection to understand the mechanism of asphalt aging and recycling. Based on the difference in recycled asphalt components, the hot recycled asphalt mixtures were optimized using the Marshall design method. The laboratory tests show that increasing the degree of blending improves the performance of hot recycled asphalt mixtures in terms of high-temperature stability, low-temperature crack resistance, water stability, and fatigue performance.
Article
Green & Sustainable Science & Technology
Teng Wang, Zhirong Chen, Jinlong Hong, Zhen Liao, Di Wang, Dongdong Yuan, Yufei Zhang, Augusto Cannone Falchetto
Summary: This study investigates the preparation and properties of a novel high-viscosity modified asphalt by mixing a new type of thermoplastic rubber with neat asphalt. The results show that adding the rubber improves the high temperature performance of the asphalt, and the modified asphalt with 6% to 11% rubber content has better comprehensive properties.
Article
Green & Sustainable Science & Technology
Guojing Huang, Jiupeng Zhang, Bing Hui, Hongfei Zhang, Yongsheng Guan, Fucheng Guo, Yan Li, Yinzhang He, Di Wang
Summary: High-modulus asphalt mixture (HMAM) is an effective material for enhancing the rutting resistance of asphalt pavement. This study investigates the modulus properties of different HMAMs and their correlation with rutting resistance. The results suggest that the dynamic modulus and frequency sensitivity of HMAMs play a significant role in the pavement's rutting resistance.
Article
Chemistry, Multidisciplinary
Meng Jia, Xianwu Ling, Shengbiao Yao, Di Wang, Augusto Cannone Falchetto, Dongdong Yuan, Luis Picado Santos
Summary: Using waste engine oil (WEO) as a partial replacement for petroleum-based asphalt binders can mitigate the environmental impact of waste WEO and reduce dependence on non-renewable asphalt resources. Adding organic rectorite (OREC) to WEO-modified asphalt improves storage stability and high-temperature stability, while slightly decreasing low-temperature cracking resistance and self-healing properties. A content of 2 wt% OREC results in superior high-temperature rutting resistance, low-temperature cracking resistance, and self-healing property compared to the base asphalt.
APPLIED SCIENCES-BASEL
(2023)
Article
Construction & Building Technology
Xiang Li, Dedong Guo, Meng Xu, Changyun Guo, Di Wang
Summary: This paper investigates the effect of using recycled engine oil bottoms (REOB) as a compatibilizer on the properties of styrene-butadiene-styrene-modified bitumen (SBS-PMB). The study focuses on the preparation method, properties, and micro-mechanism of composite modification of matrix bitumen with SBS and REOB. The research findings indicate that the addition of REOB improves the compatibility between SBS and bitumen, enhances high-temperature stability and rheological properties, and reduces the impact of aging.
Proceedings Paper
Construction & Building Technology
Wangyu Ma, Di Wang, Chen Chen, Qinrui Tang, Fan Gu
Summary: This study investigated the use of a convolutional neural network (CNN) to predict the cracking resistance of asphalt mixtures based on material properties and test setup parameters. The results showed that the method has the potential to reduce laboratory testing effort and can be applied in the mix design process.
AIRFIELD AND HIGHWAY PAVEMENTS 2023: INNOVATION AND SUSTAINABILITY IN AIRFIELD AND HIGHWAY PAVEMENTS TECHNOLOGY
(2023)