A5004801956- Natural Fiber Reinforced Composites
- Soil Management and Crop Yield
- Wood Treatment and Properties
- Agricultural and Food Sciences
- Innovations in Concrete and Construction Materials
- Material Properties and Applications
- biodegradable polymer synthesis and properties
- Advanced Cellulose Research Studies
- Microplastics and Plastic Pollution
- Bamboo properties and applications
- Concrete and Cement Materials Research
- Recycling and Waste Management Techniques
- Electrospun Nanofibers in Biomedical Applications
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Mechanical Systems and Engineering
- Architecture and Computational Design
- Textile materials and evaluations
- Geotechnical Engineering and Underground Structures
- Recycled Aggregate Concrete Performance
- Academic Research in Diverse Fields
- Geotechnical Engineering and Soil Stabilization
- Materials Engineering and Processing
- Innovative concrete reinforcement materials
- Polymer Science and PVC
- Tree Root and Stability Studies
Universidade Federal de Lavras
2022-2024
Centro Universitário de Lavras
2021
This study aimed to use the petiole residues of miriti partially replace pine wood and evaluate effects this incorporation on physical mechanical properties particleboards. Panels were produced with 0, 25, 50, 75% in partial replacement 12% urea-formaldehyde adhesive. The chemical-physical showed potential particleboard production as they similar those pinewood. For properties, panels classified low density. There was an increase compression ratio and, consequently, hygroscopicity . it...
Os oriented strand board (OSB) são um importante produto de madeira projetado, fabricado através da colagem partículas em camadas cruzadas, sendo amplamente aplicado construções, embalagens, decks, pisos, revestimentos paredes e até mesmo para fins suporte carga. Para a produção destes painéis, podemos utilizar biomassa agricultura, como resíduos atividade cafeeira. O objetivo desta pesquisa foi avaliar composição química café do pinus, bem as propriedades físicas mecânicas dos painéis...
O objetivo desta pesquisa foi avaliar o reforço de fibras bambu em compósitos poliméricos. Para tanto, da espécie (DENDROCALAMUS STRICTUS) processado moinho martelos e peneirado. Após a caracterização "in natura", os corpos prova foram conformados prensa partir dois tratamentos, 100% polipropileno 80% / 20% bambu, testados mecanicamente por dobra máquina ensaio universal. Os resultados das indicaram propriedades químicas compatíveis com valores publicados na literatura, além densidade...
RESUMO O presente trabalho tem como objetivo analisar o efeito de diferentes espécies madeiras e bambu (Pinus taeda, Cereus jamacaru Bambusa vulgaris) na hidratação matrizes cimentícias. Para tanto, os materiais lignocelulósicos foram moídos caracterizados antes depois tratamento em água quente. Posteriormente, da adição níveis (5, 10 33,3%) madeiras, pré-tratadas ou não, pastas cimento analisados a partir dos ensaios calorimetria isotérmica termogravimetria. Os resultados demonstraram que...
In view of the environmental impacts caused by construction and agroindustry industries, aim this work is to evaluate potential application coffee husk ash (CHA) as a filling element in cement pastes.For purpose, husks their ashes were characterized.Cement pastes, with water-to-cement ratio 0.4, then produced different amounts CHA (5, 10, 15, 20 25% BWOC), burned at 600°C for 3 h, characterized.The results showed that had high content alkalis.A reduction amount kinetics calcium hydroxide...
The production process of composites with recycled components, polymeric matrix and lignocellulosic reinforcement ensures social, environmental economic sustainability, making the final product an Eco-friendly material. This research focused on valorization innovation by utilizing commonly discarded materials, thereby paving way for future studies in this field. Specifically, study investigated effects replacing varying amounts straw wheat husk residues properties a low density polyethylene...
The objective of this study is to evaluate the characteristics polymeric composites containing different levels addition bean residue.To end, agricultural residues were first reduced particles and characterized "in natura" through tests for moisture content, bulk density, content extractives, lignin ash by thermogravimetry technique.Then, dried selected based on their granulometric fractions make low-density polyethylene (LDPE) with 0, 10, 20, 30 40% residues.The material waste hot-extruded...
The objective of this study is to evaluate the characteristics polymeric composites containing different levels addition bean residue.To end, agricultural residues were first reduced particles and characterized "in natura" through tests for moisture content, bulk density, content extractives, lignin ash by thermogravimetry technique.Then, dried selected based on their granulometric fractions make low-density polyethylene (LDPE) with 0, 10, 20, 30 40% residues.The material waste hot-extruded...
<title>Abstract</title> The objective of this study is to evaluate the characteristics polymeric composites containing different bean residue levels for polymer replacement. To end, agricultural residues were first reduced particles and characterized "in natura" through tests moisture content, bulk density, content extractives, lignin ash by thermogravimetry technique. Then, both materials dried selected based on their granulometric fractions make low-density polyethylene (LDPE) with...
Resumo Em busca de novos materiais a partir resíduos industriais, visando ao custo, à eficiência e redução do passivo ambiental, este trabalho teve como objetivo avaliar as características físicas, mecânicas, acústicas térmicas painéis sanduíche produzidos com lâminas Schizolobium amazonicum (paricá) núcleo caixa ovos feitos papelão coladas o adesivo fenol-formaldeído (FF) ureia-formaldeído (UF), intercalando-se estas ambos (FF+UF). Os foram avaliados por meio ensaios térmicos, acústicos,...
This work aimed to evaluate the physical-mechanical properties of Pinus oocarpa wood agglomerated panels produced with different levels (0 %, 25 50 75 % and 100 %) replacement bean residues. For this purpose, agricultural residue were reduced into particles their apparent density, extractives, lignin ash content these raw materials determined. Then, dried a 3 humidity granulometrically selected produce density 0,60 g/cm3. These bonded using 12 urea-formaldehyde adhesive, pressed, following...
Non-destructive techniques for characterizing materials in-service have been increasing in importance. Thus, it is relevant to assess the potential of non-destructive solid materials. This work aimed determine modulus elasticity Bertholletia excelsa wood using particle image velocimetry technique and ultrasound method compare results with conventional methodology. For this purpose, samples were made a circular saw. The evaluated sound propagation calculate equipment. Subsequently, they...
In order to reuse civil construction materials, research is carried out obtain an efficient recycled concrete, promoting sustainability. The objective of this work compare the compressive strengths concrete specimen, with conventional and aggregates, as well influence granulometry on strength physical properties aggregates. For purpose, aggregates from waste were incorporated into replacing part coarse Specimens made following replacement percentages: 0%, 5%, 10%, 15%, for multiple...
As embalagens à base de papel se destacam por ser um material abundante, atóxico, biodegradável e baixo custo comercialização em relação a outros materiais convencionais. Entretanto, o oferece baixa resistêcia ao vapor água, óleos gases, que pode tornar frágil as embalagens, impossibilitando seu uso para produtos perecíveis. Como alternativa, são utilizados biopolímeros recobrimento papéis, tais como derivados da celulose, amidos, quitosana ou quitina, proteínas (animal vegetal) lipídeos....