Romildo Dias Tolêdo Filho
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View article: Comparative Analysis of Sisal–Cement Composite Properties After Chemical and Thermal Fiber Treatments
Comparative Analysis of Sisal–Cement Composite Properties After Chemical and Thermal Fiber Treatments Open
The use of sisal fibers to reinforce concrete and mortar enables the development of sustainable cement-based materials suitable for various construction elements. However, the high-water absorption of natural fibers can cause dimensional i…
View article: Mobiliário urbano e design colaborativo
Mobiliário urbano e design colaborativo Open
O mobiliário urbano tem papel multifacetado nas cidades contemporâneas, englobando aspectos como praticidade, estética, ergonomia, identidade local, interação social, abrigo, iluminação, segurança e conforto. Este artigo disserta sobre o p…
View article: CARACTERIZAÇÃO REOLÓGICAS E MECÂNICAS DE PASTAS DE CIMENTO MODIFICADAS COM PÓ DE BORRACHA DE PNEU
CARACTERIZAÇÃO REOLÓGICAS E MECÂNICAS DE PASTAS DE CIMENTO MODIFICADAS COM PÓ DE BORRACHA DE PNEU Open
Esta pesquisa apresenta um estudo da atuação do pó de borracha de pneu sobre as características reológicas e mecânicas de pastas de cimento, mediante a substituições volumétricas pelo agregado fino, sílica 120 mesh. As pastas foram caracte…
View article: Development and Validation of a Theoretical Model for Flexural Behavior in Timber-Concrete and Bamboo-Concrete Composite Beams
Development and Validation of a Theoretical Model for Flexural Behavior in Timber-Concrete and Bamboo-Concrete Composite Beams Open
The growing demand for sustainable construction has encouraged the use of composite beams combining timber or bamboo with concrete to optimize structural performance and reduce environmental impact. These hybrid systems, widely used in new…
View article: Flexural Behavior of Lightweight Sandwich Panels with Rice Husk Bio-Aggregate Concrete Core and Sisal Fiber-Reinforced Foamed Cementitious Faces
Flexural Behavior of Lightweight Sandwich Panels with Rice Husk Bio-Aggregate Concrete Core and Sisal Fiber-Reinforced Foamed Cementitious Faces Open
The development of sustainable and energy-efficient construction materials is crucial for mitigating the growing environmental impact of the building sector. This study introduces a new lightweight sandwich panel, featuring a core made of …
View article: Rheological and Environmental Implications of Recycled Concrete Powder as Filler in Concrete 3D Printing
Rheological and Environmental Implications of Recycled Concrete Powder as Filler in Concrete 3D Printing Open
3D printing with concrete has been accounted as a foremost strategy to mitigate low productivity, workforce shortage, and high waste generation in the construction industry. However, substantial environmental impacts related to high cement…
View article: Low-Carbon Bio-Concretes with Wood, Bamboo, and Rice Husk Aggregates: Life Cycle Assessment for Sustainable Wall Systems
Low-Carbon Bio-Concretes with Wood, Bamboo, and Rice Husk Aggregates: Life Cycle Assessment for Sustainable Wall Systems Open
This study evaluates the carbon footprint of three bio-concrete families—wood (WBC), bamboo (BBC), and rice husk (RHBC)—and their application in wall components (as blocks and as boards). A cradle-to-grave, carbon-focused Life Cycle Assess…
View article: Avanços na Abordagem Cirúrgica das Hérnias: Técnicas Minimamente Invasivas e o Futuro da Reparação com Biomateriais
Avanços na Abordagem Cirúrgica das Hérnias: Técnicas Minimamente Invasivas e o Futuro da Reparação com Biomateriais Open
Este artigo revisa a literatura atual sobre os avanços na abordagem cirúrgica das hérnias, com foco em técnicas minimamente invasivas e no uso de biomateriais na reparação. A seleção dos artigos foi realizada utilizando a base de dados Pub…
View article: Bamboo–PCM: Comparative Analysis of Phase Change Material-Impregnated Dendrocalamus giganteus Culm Behavior Exposed to Thermal Variation in Wind Tunnel Assay
Bamboo–PCM: Comparative Analysis of Phase Change Material-Impregnated Dendrocalamus giganteus Culm Behavior Exposed to Thermal Variation in Wind Tunnel Assay Open
The construction industry’s pursuit of eco-friendly materials has sparked interest in bamboo, a renewable resource with exceptional physical and mechanical properties. This study analyzed the integration of Dendrocalamus giganteus bamboo w…
View article: Effect of temperature on the self-sensing behavior of carbon nanotubes/cement composites
Effect of temperature on the self-sensing behavior of carbon nanotubes/cement composites Open
View article: Sulfuric acid attack of mortars containing blended cements with sugarcane bagasse ash and limestone filler
Sulfuric acid attack of mortars containing blended cements with sugarcane bagasse ash and limestone filler Open
The present study evaluated the durability of mortars containing blended cements with sugarcane bagasse ash and limestone filler under sulfuric acid attack. Mortar packing density was predicted using the Compressible Packing Model, and tes…
View article: Mechanism of Tensile Load Sharing in Hybrid Reinforced Concrete Flexural Members
Mechanism of Tensile Load Sharing in Hybrid Reinforced Concrete Flexural Members Open
View article: Self-sensing cement composites for structural monitoring: Behaviour under cyclic loading
Self-sensing cement composites for structural monitoring: Behaviour under cyclic loading Open
The use of electrically conductive nanomaterials, such as carbon nanotubes (CNT), has been shown to transform cement-based composites into self-sensing cement composites (SSCC) with inherent monitoring capabilities. These composites detect…
View article: Induced Biomineralization with Pythium Aphanidermatum: A New Microorganism for the Self-Healing Effect in Cementitious Matrices
Induced Biomineralization with Pythium Aphanidermatum: A New Microorganism for the Self-Healing Effect in Cementitious Matrices Open
View article: How do ballast water, pitch angle, and tower material impact the optimization of a concrete semisubmersible floating offshore wind turbine?
How do ballast water, pitch angle, and tower material impact the optimization of a concrete semisubmersible floating offshore wind turbine? Open
Despite significant progress in floating offshore wind turbine (FOWT) technology , there are still several challenges, including the design of a cost-effective system. Considerable research has been dedicated to optimizing the floating pla…
View article: Physical-mechanical assessment to mortars including recycled concrete powder and metakaolin
Physical-mechanical assessment to mortars including recycled concrete powder and metakaolin Open
This study aims to evaluate the mechanical and physical properties of mortars incorporating recycled concrete powder (RCP) and metakaolin (MK), a widely utilized supplementary cementitious material (SCM). The mortars were partially replace…
View article: Effect of Natural Weathering on the Mechanical Strength of Bamboo Bio-Concrete
Effect of Natural Weathering on the Mechanical Strength of Bamboo Bio-Concrete Open
The search for solutions that reduce the environmental impact of construction has driven the development of new materials. Bio-concrete represents a significant advance, presenting itself as an alternative to traditional concrete. Recent s…
View article: Numerical Modeling of Cathodic Protection for Sustainable Cementitious Materials Incorporating Rice Husk Ash
Numerical Modeling of Cathodic Protection for Sustainable Cementitious Materials Incorporating Rice Husk Ash Open
View article: Properties of banana fibers extracted using equipment from the sisal agro-industry
Properties of banana fibers extracted using equipment from the sisal agro-industry Open
The industrial revolution altered the way resources are consumed, primarily increasing the intensity of extraction with a tendency to exhaust natural reserves. It is necessary to replace artificial materials and those derived from non-rene…
View article: POTENCIALIDADE DE APLICAÇÃO DE UHPC EM ESTRUTURAS MISTAS PARA GERAÇÃO DE ENERGIA EÓLICA
POTENCIALIDADE DE APLICAÇÃO DE UHPC EM ESTRUTURAS MISTAS PARA GERAÇÃO DE ENERGIA EÓLICA Open
O grande crescimento da demanda por energia renovável nos últimos anos tem representado um desafio à engenharia estrutural pela necessidade de estruturas maiores e mais esbeltas para aumento da capacidade de geração. Demandas de mercado te…
View article: Short Jute Fiber Reinforced Cement Mortar for Out-of-Plane Strengthening of Masonry Prisms
Short Jute Fiber Reinforced Cement Mortar for Out-of-Plane Strengthening of Masonry Prisms Open
The retrofitting process contributes to the sustainability of the construction sector, since adopting measures to increase the lifespan of buildings reduces the need for new constructions. However, many of the materials used in this proces…
View article: A Comprehensive Experimental Study on the Physical Performance and Durability of Bamboo Bio-Concrete
A Comprehensive Experimental Study on the Physical Performance and Durability of Bamboo Bio-Concrete Open
In recent decades, the building sector has been moving toward promoting renewable raw materials to reduce greenhouse gas emissions associated with construction materials. One of the most valuable alternatives is the use of large-volume fra…
View article: A Comprehensive Approach for Designing Low Carbon Wood Bio-Concretes
A Comprehensive Approach for Designing Low Carbon Wood Bio-Concretes Open
This paper presents a method for designing low carbon bio-based building materials, also named bio-concretes, produced with wood wastes in shavings form (WS) and cementitious pastes. As the aggregates phase of bio-concretes is composed of …
View article: Shear behavior of hollow clay brick masonry wallet coated with short jute fiber reinforced mortar
Shear behavior of hollow clay brick masonry wallet coated with short jute fiber reinforced mortar Open
The objective of this study is to present a new method of reinforcing masonry using layers of mortar reinforced with short jute fibers. Mortars were produced with 0%, 2% and 3% jute fibers with cementitious matrices free of calcium hydroxi…
View article: Effect of hot water and corona discharge treatments on the bonding behavior of jute fibers in polyester matrix
Effect of hot water and corona discharge treatments on the bonding behavior of jute fibers in polyester matrix Open
The inherent polarity and hydrophilic nature of lignocellulosic fibers and the nonpolar characteristics of polyolefins create challenges in achieving good adhesion between the two materials. This study aimed to evaluate the effect of surfa…
View article: Experimental Investigation into the Evolution of Probabilistic Characteristics of Early-Age Concrete
Experimental Investigation into the Evolution of Probabilistic Characteristics of Early-Age Concrete Open
This paper presents original findings on the heterogeneity of the mechanical properties of concrete of an early age, dependent on the evolution of the hydration reaction. The properties investigated are the compressive strength, the Young’…
View article: Evaluating the Use of Recycled Brick Powder as a Partial Replacement for Portland Cement in Concrete
Evaluating the Use of Recycled Brick Powder as a Partial Replacement for Portland Cement in Concrete Open
Portland cement is one of the most used construction materials. However, its production represents between 5 and 7% of the total CO2 emissions. On the other hand, during construction and demolition activities, different wastes are produced…
View article: Study of Reinforced Concrete with the Addition of Pozzolanic against the Penetration of Chlorides through Electrochemical Impedance Spectroscopy
Study of Reinforced Concrete with the Addition of Pozzolanic against the Penetration of Chlorides through Electrochemical Impedance Spectroscopy Open
The present work analyzes the behavior in terms of corrosion resistance of three reinforced concrete formulations over a period of 1 year. The samples were subject to a monitoring methodology using the Electrochemical Impedance Spectroscop…
View article: Effect of Number of Layers on Tensile and Flexural Behavior of Cementitious Composites Reinforced with a New Sisal Fabric
Effect of Number of Layers on Tensile and Flexural Behavior of Cementitious Composites Reinforced with a New Sisal Fabric Open
The use of fabric in reinforcing cement-based materials expands their applications for various types of construction elements. Additionally, employing renewable sources of plant-based fabrics contributes to reducing the environmental impac…
View article: How Do Ballast Water, Pitch Angle, and Tower Material Impact the Optimization of a Concrete Semisubmersible Floating Offshore Wind Turbine?
How Do Ballast Water, Pitch Angle, and Tower Material Impact the Optimization of a Concrete Semisubmersible Floating Offshore Wind Turbine? Open