Article
Construction & Building Technology
Rosa Veropalumbo, Francesca Russo, Nunzio Viscione, Salvatore Antonio Biancardo, Cristina Oreto
Summary: This study investigates the volumetric and mechanical properties of hot bituminous mastics made up using plastic waste materials as filler. The optimal blending time for the mastics was found to be 10 minutes, and the best solutions were identified as 20% PW (HP02) and 5% LF plus 15% PW (HLP02). The shear modulus G* for mastics containing PW showed a distinct increase compared to traditional mastics, especially at higher temperatures.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Francesca Russo, Rosa Veropalumbo, Cristina Oreto, Salvatore Antonio Biancardo, Francesco Abbondati, Nunzio Viscione
Summary: The study investigated the physical-mechanical properties of cold and hot asphalt mastics made using JW waste as a filler, showing that mastics made with LF and JW filler exhibited better elastic behavior at high test temperatures. The cold mastics outperformed PC ones at all tested temperatures.
Article
Polymer Science
Marek Poschl, Shibulal Gopi Sathi, Radek Stocek
Summary: The curing process of 50/50 blends of natural rubber (NR) and two different halogenated rubbers with a combination of conventional accelerated sulfur (CV) and bismaleimide (MF3) at 170 degrees C showed a co-curing reaction via Diels-Alder reaction. The blends cured with CVMF3 exhibited higher network strength, swelling resistance, and mechanical properties compared to those cured with only the CV system.
Article
Polymer Science
Maria Vizcaino-Vergara, Leif Kari, Lewis B. Tunnicliffe, James J. C. Busfield
Summary: Filler reinforced rubber is widely used in engineering applications. A study on the effects of physical aging is crucial in accurately predicting its viscoelastic properties. The torsion pendulum is used to monitor the evolution of the storage and loss modulus of carbon black filled samples for four days. The results show the presence of physical aging and provide important data on the influence of physical aging on the viscoelastic properties of the material.
Article
Construction & Building Technology
Abbas Akbari, Ali Akbari, Ali Ghanbari, Saeid Hesami
Summary: The study investigated the effects of limestone and silica fillers on the fatigue life of bitumen, showing that the addition of fillers can reduce fatigue life and dissipated energy. Lime mastics have longer fatigue life than silica mastics due to an increase in cohesion energy. The initial dissipated energy (IDE) is a suitable criterion for predicting fatigue life of bitumen mastics.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Paria Khanmoradi, Amir Modarres
Summary: This study investigated the effect of cement kiln dust (CKD) as a waste filler on the properties of bituminous mastic compared to limestone powder (LSP) as a normal filler. The results showed that CKD filler exhibited higher elastic modulus and lower adhesion compared to LSP. The analysis of filler distribution indicated the highest homogeneity coefficient at an F/B ratio of 0.8. The SHRP and MSCR methods demonstrated that CKD had better rutting resistance than LSP.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Chemistry, Physical
Hubert Grzywacz, Piotr Jenczyk, Michal Milczarek, Marcin Michalowski, Dariusz M. Jarzabek
Summary: This study used AFM-NI and OP model to analyze the mechanical properties of PMMA thin films, finding high sensitivity to experimental parameters with clear differences between thin and thick films. A simple parameter, the ratio of hardness to viscosity, was proposed for evaluating resist suitability for NIL, suggesting that thinner PMMA films are more suitable.
Article
Chemistry, Multidisciplinary
Chunli Wu, Liding Li, Wensheng Wang, Zhengwei Gu
Summary: This study investigates the effects of nano-TiO2/CaCO3 on the viscoelastic behaviors of bitumen and bituminous mixtures. The experimental results demonstrate that incorporating nano-TiO2/CaCO3 can improve the temperature sensitivity of bitumen, enhance high-temperature resistance to rutting, and slightly improve low-temperature resistance to cracking.
Article
Construction & Building Technology
Mohammed Ziaur Rahaman, Hussain U. Bahia
Summary: Mineral fillers play a crucial role in the performance of asphalt mastic and mixtures. This study evaluates the effects of filler properties on the fatigue and bond strength of asphalt mastic. Various tests are conducted to assess the cracking behavior and interfacial bond strength of asphalt mastics containing different types of fillers. The results indicate that the properties of filler, such as fineness modulus, calcium oxide, and methylene blue value, significantly impact the fatigue and bond strength performance of the asphalt mastic.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Article
Polymer Science
Jusuf Ibrulj, Ejub Dzaferovic, Murco Obucina, Manja Kitek Kuzman
Summary: This research aims to determine the relaxation and creep modulus of 3D printed materials through experiments and numerical analysis. The study considered the temperature effect on relaxation modulus and used the finite volume method and DMA analysis. The experimental and numerical results showed a good agreement.
Article
Construction & Building Technology
Tao Bai, Xuan Huang, Xiaotao Zheng, Hao Wang, Yingxiao Cheng, Bingyan Cui, Fang Xu, Bowen Mao, Yuanyuan Li
Summary: This study conducted dynamic modulus, dynamic resilience modulus, and creep compliance tests to characterize and quantify the effects of viscoelastic parameters of asphalt mixtures on the mechanical response of pavement structures. The results showed that stress magnitude significantly affected the evolution of master curves for parametric conversions from creep compliance and all mechanical responses increased with temperature. The study also demonstrated the importance of interlayer bonding for minimizing compressive/shear stresses and strains in pavement structures to mitigate failure, debonding, delamination, etc. Lastly, the use of modified asphalt mixtures was found critical to mitigate high compressive and shear strains under heavy traffic loading in high temperature climatic conditions.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Qian Zhang, Shankun Wang, Rongpei Lv, Jiaqi Wu, Hongxing Qi
Summary: This paper investigates the use of two types of dense polyurethane mixtures as a replacement for asphalt binder in pavement materials. The results show that the polyurethane mixtures exhibit better viscoelasticity and mechanical stability, providing an effective solution to the permanent deformation of asphalt mixtures at high temperatures.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Polymer Science
Ijaz Ali, Luqman Ali Shah, Tanzil Ur Rehman, Syed Faizan
Summary: This research focuses on the creep and creep-recovery measurements of the synthesized PVA-P(AAm/AMPS) IPN hydrogel to analyze its viscoelastic behavior. The microstructure and rheological properties of the IPN hydrogel are studied under different temperatures. It is found that the IPN hydrogel exhibits better rheological properties and recoverability at higher temperatures, making it suitable for various applications.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Construction & Building Technology
Qingyu Zhang, Jing Luo, Zhen Yang, Jia Wang, Yi Zhao, Yanjuan Zhang
Summary: This study investigated the use of steel slag powder (SSP) as an inorganic micro powder filler for asphalt mastic, instead of limestone powder (LSP). The results showed that adding SSP to asphalt binder enhanced the deformation resistance and fatigue life of the asphalt mastics. The complex shear modulus of the asphalt mastics increased significantly with the content of SSP. Using a combination of SSP and LSP as filler was an effective approach for utilizing steel slag in asphalt mixture.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
A. R. Dusane, P. Lenarda, M. Paggi
Summary: This study experimentally characterizes and computationally models the viscoelastic response of commercially available backsheet materials, proposing small-strain viscoelastic models based on Prony-series and Fractional Calculus. The models are validated with experimental data and show good predictability, aiding in the design and simulation of a more comprehensive digital-twin model of PV modules.
MECHANICS OF MATERIALS
(2023)
Article
Engineering, Civil
Giuseppe Crescenzo, Celine Villa, Roland Bremond, Valeria Vignali, Claudio Lantieri, Andrea Simone
Summary: Road markings visibility is assessed using the visibility level (VL), and several models have been developed to calculate visibility distance on the road by estimating the diameter of an 'equivalent' disc.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-TRANSPORT
(2022)
Article
Engineering, Industrial
Claudio Lantieri, Marco Costa, Valeria Vignali, Ennia Mariapaola Acerra, Pierclaudio Marchetti, Andrea Simone
Summary: The study found that flashing in-curb LED strips and beacons significantly increased yielding compliance and the distance at which pedestrians were detected by drivers when approaching a crosswalk at night.
Article
Chemistry, Physical
Giulio Dondi, Francesco Mazzotta, Claudio Lantieri, Federico Cuppi, Valeria Vignali, Celestino Sangiovanni
Summary: The use of CDM can be a suitable solution for the construction or rehabilitation of road pavements, helping to minimize waste production. Steel slag as aggregate in bituminous mixes has shown stability and increased stiffness in laboratory performance tests.
Article
Construction & Building Technology
Valeria Vignali, Ennia Mariapaola Acerra, Claudio Lantieri, Federica Di Vincenzo, Giorgio Piacentini, Stefano Pancaldi
Summary: The use of new technologies like I-BIM is revolutionizing the field of infrastructure design and construction, allowing for optimized and validated road projects that interact with the surrounding environment.
AUTOMATION IN CONSTRUCTION
(2021)
Article
Materials Science, Multidisciplinary
Navid Ghasemi, Ennia Mariapaola Acerra, Claudio Lantieri, Andrea Simone, Federico Rupi, Valeria Vignali
Summary: This study investigates the effectiveness of mid-block bicycle crossing elements through real road experiments, analyzing drivers' behavior. The results show that red colored pavement improves visibility of the crossing zone, while the overhead bicycle crossing sign restricts drivers' visual field.
Article
Materials Science, Multidisciplinary
Francesco Censorii, Luca Cotignoli, Valeria Vignali, Alberto Bartoli
Summary: In this study, the Envision framework is used to evaluate the sustainability and resilience of road projects in Italy. The authors have upgraded the framework to comply with the Italian regulatory framework for road infrastructures. The evaluation considers not only pavement analysis but also the complete project process.
Article
Environmental Sciences
Margherita Pazzini, Leonardo Cameli, Claudio Lantieri, Valeria Vignali, Giulio Dondi, Thomas Jonsson
Summary: The negative effects of widespread car use, such as congestion, pollution, noise, and accidents, are impacting cities globally. Shared electric scooters and bicycles have the potential to promote sustainable transportation, but some local governments have not yet integrated them into their transportation systems. Unclear legislation makes it difficult to determine whether electric scooters should be classified as bicycles or vehicles. Additionally, predicting their impact on road traffic and interactions with pedestrians and cyclists is challenging. This study analyzed the speed and behavior of electric scooter drivers in Trondheim, Norway, to inform policies for their safe integration into cities.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Energy & Fuels
Roberto Battistini, Fabrizio Passarini, Rita Marrollo, Claudio Lantieri, Andrea Simone, Valeria Vignali
Summary: University campuses have a significant impact on hosting cities and territories, and sustainable policies are crucial in reducing this impact. This paper presents a carbon footprint methodology specifically designed for large universities, applied to the University of Bologna to assess its environmental impact. The study compares the carbon footprint in 2020 and 2018, highlighting changes in emissions sources.
Article
Green & Sustainable Science & Technology
Rachele Corticelli, Margherita Pazzini, Cecilia Mazzoli, Claudio Lantieri, Annarita Ferrante, Valeria Vignali
Summary: This study focuses on the Rimini Canal Port as a case study to address the increasing need for reducing emissions and environmental impact in urban areas. Through a historical-documental and urban regulations analysis, the main issues and potentials were identified and evaluated using a SWOT analysis. The involvement of stakeholders enabled a successful participatory co-design process, leading to the resolution of critical issues and the improvement of cycle/pedestrian paths and the flooding docks in the Canal Port area. The findings highlight the significant impact of soft mobility on urban regeneration projects.
Article
Chemistry, Multidisciplinary
Roberto Battistini, Alessandro Nalin, Andrea Simone, Claudio Lantieri, Valeria Vignali
Summary: Studying the attitudes and behaviors of university student cyclists can help improve urban cycling. This study used a comprehensive methodology including direct observation, GPS detection, GIS processing, and qualitative survey to evaluate the cycling habits of over 300 students from the University of Bologna. The findings provide insights into their cycling preferences and mobility patterns.
APPLIED SCIENCES-BASEL
(2022)
Article
Construction & Building Technology
Ennia Mariapaola Acerra, Gian Franco Daniel Busquet, Marco Parente, Margherita Marinelli, Valeria Vignali, Andrea Simone
Summary: The study demonstrates that the I-BIM approach is a powerful tool for optimizing and validating infrastructure design, allowing users to visualize how the infrastructure integrates into the real 3D environmental context.
Article
Green & Sustainable Science & Technology
Rachid Belaroussi, Margherita Pazzini, Israa Issa, Corinne Dionisio, Claudio Lantieri, Elena Diaz Gonzalez, Valeria Vignali, Sonia Adele
Summary: By engaging users early in the design process, the design of infrastructure for sustainable mobility can be improved. The study presents data collected from a virtual reality application evaluating user perception in an urban redevelopment context. The ratings of the article: 8 out of 10.
Article
Construction & Building Technology
Ennia Mariapaola Acerra, Murad Shoman, Hocine Imine, Claudia Brasile, Claudio Lantieri, Valeria Vignali
Summary: Cyclist safety is crucial due to the increasing use of bicycles as a means of transportation. This study highlights the critical points of infrastructure and interactions with different road users through visual tracking and a bicycle simulator. A comparison between real tests and simulations reveals objective differences in behavior and a low workload perception by cyclists.
Article
Construction & Building Technology
Margherita Pazzini, Leonardo Cameli, Claudio Lantieri, Valeria Vignali, Daniele Mingozzi, Giuseppe Crescenzo
Summary: BIM has greatly improved the design process and is now being applied to road infrastructure construction. The I-BIM methodology helps designers consider all aspects of the project, including sustainability, during construction and execution.
Article
Transportation
Federico Cuppi, Valeria Vignali, Claudio Lantieri, Luca Rapagna, Nicola Dimola, Tomaso Galasso
Summary: The European Rail Traffic Management System (ERTMS) aims to standardize railway signals in Europe and improve network performance. The High-Density European Traffic Management System (HD-ERTMS) has been developed as a solution to address congestion at railway nodes without changing current infrastructure. Introducing this new signalling system, such as in the case study of the Rome railway node, is expected to bring about significant benefits.
JOURNAL OF RAIL TRANSPORT PLANNING & MANAGEMENT
(2021)