Article
Environmental Sciences
Laurence Hopkinson, Stanislav Ostapishin, Petra Kristova, Katy Hamilton, Corina Ciocan
Summary: This study provides a molecular and elemental analysis of GRP recovered from the marine environment, indicating that aged GRP in the marine environment can release micro (<5 mm) and macro plastic, as well as fragmented asbestiform-like silicate fibers.
MARINE POLLUTION BULLETIN
(2021)
Article
Materials Science, Composites
Jikang Li, Zheng Liu, Yajing Li, Yongzhong Zhao, Min Wang, Hongtao Wang, Xu Chen
Summary: Glass fiber reinforced plastic (GFRP) was fabricated by molding with phenolic resin as the matrix in this study. The distribution, tensile properties, creep performance, and damage mechanism of GFRP were systematically investigated. Results showed that horizontal specimens had better tensile properties, lower viscoelasticity, and excellent creep resistance. The fibers exhibited a 3D core-shell morphology with transverse isotropy. Load was carried by the fibers and damage was in the form of fiber fracture and pull-out in horizontal specimens. Random distribution and interweaving resulted in double fracture sections of fibers in vertical specimens. Load was carried by the interface and resin, and damage was in the form of fiber pull-out and interfacial debonding. The high viscoelasticity of the resin and weak interfacial bonding ability led to large creep deformation in vertical specimens. Additionally, the creep strain under different loads could be accurately predicted by Modified Time Hardening model.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Andry Rakhman, Kuncoro Diharjo, Wijang Wisnu Raharjo, Venty Suryanti, Sunarto Kaleg
Summary: Glass fiber reinforced plastic (GFRP) composites have the potential to replace metal components in vehicles due to their maintained mechanical properties and improved fire resistance. The addition of pumice-based active nano filler and commercial active filler enhances the fire resistance and strength of the GFRP composite. The use of sodium silicate (SS) and boric acid (BA) inhibits combustion, but excessive use can lower mechanical properties.
Article
Materials Science, Composites
Hongguang Wang, Lanjie Yang, Hao Wu
Summary: This study investigated the preparation and mechanical properties testing of epoxy-based flax and glass HFRP composites, finding that bending properties had a significant positive effect on hybrid composites.
POLYMER COMPOSITES
(2021)
Article
Engineering, Biomedical
Ting Zhao, Zilong Jiang, Yongcheng Ge, Haoyu Yin, Qi Yang, Ruozhu Li, Zheng Chen, Haibo Zhang, Xiaoqiu Liu
Summary: The mechanical properties, biosafety, and shearing bonding strength of glass fibers-reinforced polyether-ether-ketone (PEEK-GF) as post-core materials were investigated. The study found that the mechanical properties of PEEK-GF composites improved with increased glass fiber content. Evaluation of cytotoxicity, cell morphology, and cell growth confirmed the biosafety and biocompatibility of PEEK-GF composites. Furthermore, the PEEK-GF50 sample exhibited the highest shearing bonding strength after pretreatments. These results demonstrate the great potential of PEEK-GF composites as post-core materials.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Engineering, Mechanical
F. Gusella, M. Orlando
Summary: This paper presents a new analytical method considering rotation capacity to evaluate the load-carrying capacity of structural members. By using closed-form equations, the ultimate load and failure mode of an interior span of a multi-span moment resisting frame can be evaluated, and a retrofitting design procedure for structural strengthening is proposed. The accuracy of the method is checked through comparison with numerical results. It provides engineers with a useful tool for local strengthening of existing reinforced concrete buildings.
ENGINEERING FAILURE ANALYSIS
(2023)
Review
Materials Science, Composites
Majid Pourghayoumi, Ali Jamali, Amir Hossein Behravesh, Mohammad Mazdi, Seyyed Kaveh Hedayati, Hassan Moslemi Naeini
Summary: The mechanical properties of wood-plastic composites (WPCs) are reduced due to the use of wood particles, making their structural applications scarce. Embedding continuous fibers is considered the most effective method for increasing mechanical properties, although there are challenges in large-scale implementation. This study designed and implemented a modular die to embed continuous glass fibers into extruded WPC profiles, investigating the positioning of fiber rovings and evaluating the effect of fiber characteristics on the mechanical properties of WPCs. The results showed significant improvements in flexural strength for reinforced specimens compared to non-reinforced composites, with a non-catastrophic failure mode observed.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Limnology
Cecilia Martin, Charlotte A. Young, Letizia Valluzzi, Carlos M. Duarte
Summary: About 15 Tg of plastic enter the ocean each year, with the majority accumulating in marine sediments rather than floating on the surface. From 1950 to 2010, an estimated 170 Tg (25-900 Tg) of nonfibrous plastic has accumulated in marine sediments globally, confirming their role as a major sink for plastic.
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2022)
Article
Chemistry, Physical
Pierre Rossi
Summary: This paper focuses on using numerical tools, such as finite element methods, to design eco-constructions using fiber reinforced concrete (FRC). It argues that these tools are more suitable than Eurocodes for predicting the cracking process and durability of FRC constructions at their service limit state. After analyzing existing finite element models for FRC cracking, a probabilistic model is described in detail, which provides precise information about crack openings up to 300 microns. An example is presented to demonstrate the use of this numerical model in optimizing an FRC track slab to reduce its carbon footprint. The study suggests that reducing the thickness is the best way to reduce the carbon footprint of this type of construction.
Article
Computer Science, Interdisciplinary Applications
Rongchao Jiang, Zhenchao Jin, Shukun Ci, Dawei Liu, Haixia Sun
Summary: The lightweight design of the control arm using carbon fiber-reinforced plastic (CFRP) can improve fuel economy and driving performance. A multilevel optimization method was proposed to optimize the CFRP control arm, including ply optimization and multiobjective reliability optimization. The results show that the optimized CFRP control arm has improved performance stability and reduced mass by 38.34%.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2022)
Article
Materials Science, Composites
Yang Hua, Fei Li, Ning Hu, Shao-Yun Fu
Summary: This study demonstrates that grafting graphene oxide (GO) coating onto glass fibers can greatly improve the frictional stability and reduce the friction coefficient parallel to the fiber alignment under low pressures in glass fiber reinforced polymer (GFRP) composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Construction & Building Technology
Fernanda Martins Cavalcante de Melo, Anna Cristina Araujo de Jesus Cruz, Leonardo Dantas de Souza Netto, Marcos Antonio de Souza Simplicio
Summary: The study found that the addition of hybrid fibers reduced the maximum bond strength of concrete, but had a positive influence on the ductility of concrete specimens with larger diameter bars.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Multidisciplinary Sciences
Tong Jiao, Chuhong Pu, Wenjing Xing, Tao Lv, Yuan Li, Huaping Wang, Jianping He
Summary: This study systematically characterized the properties of glass fiber-reinforced polymer-packaged optical fiber sensors, including dimension optimization, mechanical properties, strain/temperature sensing performance, fatigue resistance, and corrosion resistance. The experimental results showed that the GFRP-OF sensors have enhanced robustness, excellent strain and temperature sensing performance, and good fatigue properties.
Article
Materials Science, Characterization & Testing
Karthick Rasu, Anbumalar Veerabathiran
Summary: The accumulation of industrial waste is a significant environmental issue, leading to air and water pollution. Adding industrial waste to polymer composites improves their properties. This study investigates the mechanical, tribological, and water absorption behavior of sisal/glass fiber reinforced hybrid composites with industrial waste (red mud), with no prior research in this area. The results show that a composite with 30 wt% sisal fiber and 5 wt% red mud exhibits enhanced mechanical properties, minimal wear, and good water resistance, making it suitable for marine applications.
Article
Nanoscience & Nanotechnology
Lekha Rethi, Luke Lu, Van Tin Huynh, Yankuba B. Manga, Lekshmi Rethi, Chinmaya Mutalik, Chih-Hwa Chen, Er-Yuan Chuang
Summary: This study reported a bioactive glass fiber-reinforced plastic composite material with bioresorbable characteristics, serving as a bone-anchoring substitute with superior physicochemical characteristics for bone regeneration and restoration.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Construction & Building Technology
Carlos J. Slebi-Acevedo, Daniel Castro-Fresno, Pablo Pascual-Munoz, Pedro Lastra-Gonzalez
Summary: Porous asphalt mixtures are becoming an attractive alternative for pavement surface layers due to their benefits in noise reduction, safety, and environmental aspects. However, their durability is lower than dense graded asphalt mixtures, leading to the need for the incorporation of different types of binders and additives to improve performance. The study found that polymer modified binders can enhance the ravelling resistance of the mixture without compromising functional performance.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Construction & Building Technology
Pedro Lastra-Gonzalez, Esther Lizasoain-Arteaga, Daniel Castro-Fresno, Gerardo Flintsch
Summary: This study analyzed the feasibility of adding plastic waste to asphalt mixtures, showing significant reductions in economic and environmental impacts.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Laura Castanon-Jano, Daniel Castro-Fresno, Elena Blanco-Fernandez, Jaime Carpio-Garcia
Summary: This study introduces a low visual impact flexible system for slope protection, proposing mechanical union between membrane layers to reduce installation time and costs. Using multi-criteria decision analysis, the most appropriate component selection and linking method are determined to stimulate vegetation restoration.
AIN SHAMS ENGINEERING JOURNAL
(2021)
Article
Construction & Building Technology
Raquel Casado, Pedro Lastra-Gonzalez, Daniel Castro-Fresno, Lucia Miranda Perez
Summary: This paper introduces a promising technology to extend the durability of asphalt pavements by using porous aggregates as capsules containing rejuvenator to reverse the impacts of road ageing. The research demonstrates the effectiveness of this technology, showing that asphalt with capsules added exhibits less significant changes in properties over time compared to traditional methods.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2021)
Article
Chemistry, Physical
Pedro Lastra-Gonzalez, Jorge Rodriguez-Hernandez, Carlos Real-Gutierrez, Daniel Castro-Fresno, Angel Vega-Zamanillo
Summary: This study analyzed the dry addition of various polymer types in porous asphalt mixtures, demonstrating the advantages of dry addition method in improving mechanical performance, and suggesting it as a reasonable and feasible option.
Article
Engineering, Multidisciplinary
Jose Carlos Jimenez Fernandez, Laura Castanon-Jano, Alvaro Gaute Alonso, Elena Blanco-Fernandez, Juan Carlos Gonzalez Fernandez, Victor Centeno Gonzalez, Daniel Castro-Fresno, David Garcia-Sanchez
Summary: This study developed a numerical model combining Finite Element Modelling with Smooth Particle Hydrodynamics formulation to simulate the failure and sliding behavior of rock and soil slopes. An experimental test successfully reproduced the soil detachment and retention by the steel membrane.
AIN SHAMS ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Fouad Boukhelf, Nassim Sebaibi, Mohamed Boutouil, Adrian Yoris-Nobile, Elena Blanco-Fernandez, Daniel Castro-Fresno, Carlos Real-Gutierrez, Roger J. H. Herbert, Sam Greenhill, Bianca Reis, Joao N. Franco, Maria Teresa Borges, Isabel Sousa-Pinto, Pieter van der Linden, Oscar Babe Gomez, Hugo Sainz Meyer, Emanuel Almada, Rick Stafford, Valentin Danet, Jorge Lobo-Arteaga, Miriam Tuaty-Guerra, Alice E. Hall
Summary: This study focuses on the evolution monitoring of biomass colonization and mechanical properties of 3D printed eco-materials/mortars in the sea. The results show that using CEM III cementitious binders can lead to better biomass colonization and mechanical properties compared to geopolymer-based compositions. Therefore, CEM III should be preferred over geopolymer binders in 3D printed concrete for artificial reef applications.
Article
Construction & Building Technology
Adrian Yoris-Nobile, Esther Lizasoain-Arteaga, Carlos J. Slebi-Acevedo, Elena Blanco-Fernandez, Sara Alonso-Canon, Irune Indacoechea-Vega, Daniel Castro-Fresno
Summary: This paper compares the application of low-clinker cement and geopolymer mortars in 3D printing. The environmental impact is evaluated using LCA, and the most suitable dosages are selected through MCDM analysis. The results show that low-clinker cement mortars are superior in terms of environmental impact and material cost.
JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS
(2023)
Review
Engineering, Civil
Sara Alonso-Canon, Elena Blanco-Fernandez, Daniel Castro-Fresno, Adrian Yoris-Nobile, Laura Castanon-Jano
Summary: This article reviews the current limitations of 3D printing of concrete structures, particularly the challenges in incorporating reinforcements. It focuses on the methods employed for reinforcement, specifically through the use of fibers. The study analyzes the properties, lengths, and percentages of fibers in mixtures, and compares the test results between printed and molded materials. The findings highlight the improvements in test results achieved by incorporating fibers.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Construction & Building Technology
Adrian I. Yoris-Nobile, Carlos J. Slebi-Acevedo, Esther Lizasoain-Arteaga, Irune Indacoechea-Vega, Elena Blanco-Fernandez, Daniel Castro-Fresno, Alejandro Alonso-Estebanez, Sara Alonso-Canon, Carlos Real-Gutierrez, Fouad Boukhelf, Mohamed Boutouil, Nassim Sebaibi, Alice Hall, Sam Greenhill, Roger Herbert, Richard Stafford, Bianca Reis, Pieter van der Linden, Oscar Babe Gomez, Hugo Sainz Meyer, Joao N. Franco, Emanuel Almada, Maria Teresa Borges, Isabel Sousa-Pinto, Miriam Tuaty-Guerra, Jorge Lobo-Arteaga
Summary: The manufacture of artificial reefs by 3D printing is an important method for the recovery of damaged ecosystems. This study takes a multidisciplinary approach to analyze the materials, designs, and construction process of artificial reefs in order to understand their true impact on the environment. The results show that using cement mortars for 3D printing artificial reefs has better characteristics.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Physical
Mireia Ballester-Ramos, Helena Miera-Dominguez, Pedro Lastra-Gonzalez, Daniel Castro-Fresno
Summary: The properties of asphalt concrete mixtures were improved by introducing residual plastics as a substitute for virgin bitumen, which enhanced the sustainability of the mixtures. Experimental testing of different waste plastic materials and replacement percentages (15% and 25%) showed that introducing plastic materials increased the voids by approximately 5%. The mechanical performance of the experimental mixtures, particularly the resistance against plastic deformations, improved and even reached similar values to mixtures made with polymer-modified bitumen.
Article
Green & Sustainable Science & Technology
Valerio Carlos Andres-Valeri, Osvaldo Munoz-Caceres, Aitor C. Raposeiras, Daniel Castro-Fresno, Manuel Lagos-Varas, Diana Movilla-Quesada
Summary: The study demonstrates that cellulose ash and combustion soot can be feasible alternatives to traditional filler materials in porous asphalt mixtures, as they can improve the mechanical strength and characteristics of the mixtures while maintaining adequate infiltration capacities to meet international standards.
Article
Construction & Building Technology
Christopher DeLaFuente-Navarro, Pedro Lastra-Gonzalez, Miguel Angel Calzada-Perez, Daniel Castro-Fresno
Summary: Cold asphalt mixtures can be made more sustainable by adding magnetic aggregates and using magnetic induction to reduce curing time. Experimental results showed that using industrial by-products as magnetic aggregates shortened the curing time from days to hours without compromising the rheological and mechanical properties of the asphalt.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Engineering, Civil
Daniel Castro-Fresno, Helena Miera-Dominguez, Pedro Lastra-Gonzalez, Irune Indacoechea-Vega, Ronald van Loon, Gijsjan van Blokland
Summary: Road transportation is a major source of noise emissions that have a serious impact on human health. This study focused on developing a two-layer porous asphalt mixture that can reduce the noise generated between tires and roads by considering variables such as texture wavelength spectrum, acoustic absorption, flow resistivity, void content, thickness, and maximum aggregate size.
TRANSPORTATION RESEARCH RECORD
(2023)
Proceedings Paper
Engineering, Civil
F. Collazos Arias, J. C. Mas Bahillo, D. Castro-Fresno, J. Rodriguez-Hernandez, E. Blanco-Fernandez, L. Castanon-Jano, D. Garcia-Sanchez, I. Beltran Hernando
Summary: This communication discusses the latest experiences in slope and foundation drainage and runoff water management to enhance resilience in roadway infrastructures. Repair actions were taken to restore road safety and stability in Northern Spain after temporary rain and adverse weather conditions caused damage to road slopes. Heavy rains caused stone movements along the slopes as well as impressive waterfalls from karst caves, which were channeled into the Deva River through an innovative solution. The stabilization of slopes on the A-8 motorway was achieved through biological engineering. The effectiveness of these actions has been proven through a year of road operation, and the monitoring system used for full-scale tests is reliable for understanding force transmission mechanisms and future design purposes.
ADVANCES IN TRANSPORTATION GEOTECHNICS IV, VOL 3
(2022)
