Eduardo Júlio
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View article: Special Theme “Ultra‐thin shells built using prefabricated <scp>UHPC</scp> modules and stabilized by post‐tensioning”
Special Theme “Ultra‐thin shells built using prefabricated <span>UHPC</span> modules and stabilized by post‐tensioning” Open
View article: Development of eco ultra‐high performance concrete for the prefabrication of ultra‐thin concrete shells
Development of eco ultra‐high performance concrete for the prefabrication of ultra‐thin concrete shells Open
The present study focuses on the development of an eco‐UHPC to be used in a prefabrication company to produce ultra‐thin concrete shells. The composition targeted a strong (up to 50%) reduction of the Portland cement content, with a partia…
View article: Sustainable Approach for the Use of Construction and Demolition Waste as Recycled Aggregates in the Production of Concrete - Analysis, Mix Design and Construction Site Application
Sustainable Approach for the Use of Construction and Demolition Waste as Recycled Aggregates in the Production of Concrete - Analysis, Mix Design and Construction Site Application Open
View article: Investigating the Influence of SCMs on Mechanical Performance through Experimental Feret's Coefficients in Low-carbon Concrete
Investigating the Influence of SCMs on Mechanical Performance through Experimental Feret's Coefficients in Low-carbon Concrete Open
The focus on sustainable construction materials has prompted research into alternatives to reduce the carbon dioxide emissions associated with the production of Portland cement. Several studies have attempted to minimise the use of Portlan…
View article: Low cement concretes with ultra-high durability for innovative composite lightweight precast walls
Low cement concretes with ultra-high durability for innovative composite lightweight precast walls Open
The study herein presented was conducted with the aim of developing a new lightweight aggregates concrete (LWAC) and a new ultra-high durability concrete (UHDC), both with low cement content. These were specifically designed to meet the re…
View article: Mortars Produced with Recycled Aggregates from Construction and Demolition Waste – Analysis and Construction Site Application
Mortars Produced with Recycled Aggregates from Construction and Demolition Waste – Analysis and Construction Site Application Open
View article: 3d Printing Cementitious Mortars: Anisotropy Analysis of Compressive and Flexural Strengths
3d Printing Cementitious Mortars: Anisotropy Analysis of Compressive and Flexural Strengths Open
View article: VISION SYSTEM FOR MONITORING SEISMIC TESTS IN CONCRETE SHELLS
VISION SYSTEM FOR MONITORING SEISMIC TESTS IN CONCRETE SHELLS Open
Structural monitoring plays a crucial role in assessing damage and detecting potential faults. Vision systems provide real-time information about the behaviour and state of conservation of structures, enabling precise and efficient analysi…
View article: Reducing the environmental impact of the end-of-life of buildings depending on interrelated demolition strategies, transport distances and disposal scenarios
Reducing the environmental impact of the end-of-life of buildings depending on interrelated demolition strategies, transport distances and disposal scenarios Open
Construction and demolition waste (CDW) represents a high environmental impact. This is strongly related to the chosen alternatives for the disposal of these waste. In this paper, different strategies are analysed in order to achieve the m…
View article: A novel roughness parameter for more precise estimation of the shear strength of concrete-to-concrete interfaces
A novel roughness parameter for more precise estimation of the shear strength of concrete-to-concrete interfaces Open
Concrete-to-concrete interfaces are common in new reinforced concrete structures with different casting stages and or with precast members with cast-in-place parts, as well as in rehabilitation of existing reinforced concrete structures. T…
View article: A review on precast structural concrete walls and connections
A review on precast structural concrete walls and connections Open
Extreme events, with natural or manmade causes, such as floods, pandemics and wars, have recently brought the need to provide shelter and field hospitals in a very fast and affordable way. Prefabrication can play an relevant role in this c…
View article: Reinforcement detailing of connections between perpendicular hollow precast walls
Reinforcement detailing of connections between perpendicular hollow precast walls Open
The pre-wall system can be used in the construction of buildings, with multiple advantages in terms of production time and environmental impact. This type of walls is formed by two thin precast concrete panels, linked with steel trusses to…
View article: An Image-Based Framework for Measuring the Prestress Level in CFRP Laminates: Experimental Validation
An Image-Based Framework for Measuring the Prestress Level in CFRP Laminates: Experimental Validation Open
Image-based methods have been applied to support structural monitoring, product and material testing, and quality control. Lately, deep learning for compute vision is the trend, requiring large and labelled datasets for training and valida…
View article: Development and Characterization of Eco-Efficient Ultra-High Durability Concrete
Development and Characterization of Eco-Efficient Ultra-High Durability Concrete Open
Ultra-High-Performance Concrete (UHPC) is characterized by having an ultra-compact matrix resulting in ultra-high mechanical properties, low permeability to water and gases, and improved ductility provided by the addition of fibers. The pr…
View article: Synthesis of Polyvinyl Alcohol-Chitosan Composite Film using Nanocellulose from Coconut Fibers (Cocos nucifera)
Synthesis of Polyvinyl Alcohol-Chitosan Composite Film using Nanocellulose from Coconut Fibers (Cocos nucifera) Open
In this research, polyvinyl alcohol (PVA)-chitosan composite films were produced using nanocellulose from coconut fibers (Cocos nucifera) in an Indonesian plantation in order to enhance mechanical properties and biodegradability. The proce…
View article: Domain adversarial training for classification of cracking in images of concrete surfaces
Domain adversarial training for classification of cracking in images of concrete surfaces Open
The development of automatic methods to recognize cracks in surfaces of concrete has been under focus in recent years, firstly through computer vision methods and more recently focusing on convolutional neural networks that are delivering …
View article: Special Issue: Structural Concrete Material—New Trends for Eco-Efficiency and Performance
Special Issue: Structural Concrete Material—New Trends for Eco-Efficiency and Performance Open
During the last few years, structural concrete has experienced significant advances, stimulated by the demand for stricter requirements in terms of sustainability, durability and strength [...]
View article: Automatic strength assessment of the virtually modelled concrete interfaces based on shadow-light images
Automatic strength assessment of the virtually modelled concrete interfaces based on shadow-light images Open
The interface between concrete layers cast at different ages is present both in new construction, e.g., precast beams with cast in place decks, and in rehabilitation, e.g., jacketing of existing beams and columns. The interface strength en…
View article: Benchmarking for Strain Evaluation in CFRP Laminates Using Computer Vision: Machine Learning versus Deep Learning
Benchmarking for Strain Evaluation in CFRP Laminates Using Computer Vision: Machine Learning versus Deep Learning Open
The strengthening of concrete structures with laminates of Carbon-Fiber-Reinforced Polymers (CFRP) is a widely adopted technique. retained The application is more effective if pre-stressed CFRP laminates are adopted. The measurement of the…
View article: Mechanical and durability performance of cementitious matrices with low cement and different additions
Mechanical and durability performance of cementitious matrices with low cement and different additions Open
Nowadays, the decarbonization of the concrete sector is a priority to counteract the global environmental harmful. Knowing that Portland cement is responsible for significant anthropogenic emissions worldwide, the optimization of cement do…
View article: Environmental Impacts and Benefits of the End-of-Life of Building Materials: Database to Support Decision Making and Contribute to Circularity
Environmental Impacts and Benefits of the End-of-Life of Building Materials: Database to Support Decision Making and Contribute to Circularity Open
This paper outlines a methodology for structuring a generic database of environmental impacts on the end-of-life phase of buildings, which can be used at the national level, in accordance with European standards. A number of different opti…
View article: Durability of mortar matrices of low-cement concrete with specific additions
Durability of mortar matrices of low-cement concrete with specific additions Open
The decarbonization of concrete sector is a priority to counteract the global environmental harmful. Knowing that Portland cement is responsible for huge anthropogenic emissions worldwide, the significant reduction of cement content in con…
View article: Design and Durability Assessment of Restoring Mortar for Concrete Heritage
Design and Durability Assessment of Restoring Mortar for Concrete Heritage Open
Interventions in concrete heritage deal with challenges related to conservation, and must be performed from an integrated restoration perspective. In addition to the material technical performance, the aesthetic compatibility between the r…
View article: Influence of Pozzolan, Slag and Recycled Aggregates on the Mechanical and Durability Properties of Low Cement Concrete
Influence of Pozzolan, Slag and Recycled Aggregates on the Mechanical and Durability Properties of Low Cement Concrete Open
The sustainability of the construction sector demands the reduction of CO2 emissions. The optimization of the amount of cement in concrete can be achieved either by partially replacing it by additions or by reducing the binder content. The…
View article: Enhanced Mechanical and Durability Performances of Low Cement Concrete with Natural Pozzolan Addition
Enhanced Mechanical and Durability Performances of Low Cement Concrete with Natural Pozzolan Addition Open
The decarbonization of concrete structures sector is a priority due to the world climate. Since Portland cement is responsible for approximately 7% of the anthropogenic emissions worldwide, it is decisive to partially replace it by product…
View article: Influence of Nano-SiO<sub>2</sub>, Nano-Al<sub>2</sub>O<sub>3</sub>, and Nano-ZnO Additions on Cementitious Matrixes with Different Powder and Steel Fibers Content
Influence of Nano-SiO<sub>2</sub>, Nano-Al<sub>2</sub>O<sub>3</sub>, and Nano-ZnO Additions on Cementitious Matrixes with Different Powder and Steel Fibers Content Open
In the study herein presented three types of nanoparticles, with different dosages, were used, namely nano-SiO2, nano-Al2O3 and nano-ZnO, which were combined with different concrete formulations. The main goal is to improve the eco-efficie…
View article: Durability and Time-Dependent Properties of Low-Cement Concrete
Durability and Time-Dependent Properties of Low-Cement Concrete Open
The sustainability concerns of concrete construction are focused both on the materials’ eco-efficiency and on the structures’ durability. The present work focuses on the characterization of low cement concrete (LCC), regarding time-depende…
View article: Analytical hybrid effect prediction and evolution of the tensile response of unidirectional hybrid fibre-reinforced polymers composites for civil engineering applications
Analytical hybrid effect prediction and evolution of the tensile response of unidirectional hybrid fibre-reinforced polymers composites for civil engineering applications Open
The performance of a progressive damage model in quantitative hybrid effect prediction of a comprehensive set of different 16 unidirectional interlayer (layer-by-layer) hybrid composites was assessed. Composites, produced by the hand lay-u…
View article: 3D finite element model for hybrid FRP-confined concrete in compression using modified CDPM
3D finite element model for hybrid FRP-confined concrete in compression using modified CDPM Open
View article: Mechanical performance of eco-efficient hollow clay bricks incorporating industrial nano-crystalline aluminium sludge
Mechanical performance of eco-efficient hollow clay bricks incorporating industrial nano-crystalline aluminium sludge Open
In this paper, mechanical properties of a new structural and eco-efficient hollow clay bricks are investigated. The principal goal was to recycle residual sludge from aluminium anodizing industries by incorporating it in the raw material o…