A5082075176- Asphalt Pavement Performance Evaluation
- Infrastructure Maintenance and Monitoring
- Geotechnical Engineering and Underground Structures
- Geography and Environmental Studies
- Geotechnical Engineering and Soil Stabilization
- Transport Systems and Technology
- Recycled Aggregate Concrete Performance
- Innovative concrete reinforcement materials
- Geotechnical and construction materials studies
- Structural Behavior of Reinforced Concrete
- Grouting, Rheology, and Soil Mechanics
- Structural Engineering and Vibration Analysis
- Municipal Solid Waste Management
- Concrete Corrosion and Durability
- Environmental Sustainability and Education
- Smart Materials for Construction
- Structural Load-Bearing Analysis
- Materials Engineering and Processing
- Academic Research in Diverse Fields
- Drilling and Well Engineering
- Concrete and Cement Materials Research
- Soil and Unsaturated Flow
- Innovations in Concrete and Construction Materials
- Soil Geostatistics and Mapping
- Color Science and Applications
Universidade Federal de Juiz de Fora
2012-2023
Centro de Ensino Superior de Juiz de Fora
2022
Hospital Universitário - Universidade Federal de Juiz de Fora
2021
Universidade Federal de Viçosa
2021
Federal University of São João del-Rei
2021
Este trabalho tem por objetivo comparar, através de um programa experimental, misturas asfálticas dosadas método tradicional àquelas cujo proporcionamento dos agregados foi determinado pelo Método Bailey. O Bailey diferencia-se métodos atualmente utilizados por, além selecionar e avaliar a distribuição granulométrica agregados, se aproveitar da contribuição do esqueleto mineral sobre as características mecânicas das asfálticas. experimental comparou o desempenho duas maneiras diferentes...
The generation growing and diversified of Municipal Solid Waste is configured as an environmental problem, economic social deterioration, especially, by application inappropriate management them. Faced with this urban context, the research in development presents specific objective assessment quality life gatherers recyclable materials were active city Juiz de Fora, brazilian state Minas Gerais. In addition, is, still, recognition activity sorting performed "scavengers" order to maximize...
This paper presents models that correlate deflection basin parameters (DBP) with seed moduli, which are the input of backcalculation processes. The were obtained by means statistical analyses a set DBPs for different pavement structures. proposed equations showed potential and increased accuracy in estimation since these derived from DBP-based consider geometry. To evaluate effectiveness models, they applied to pavements located five regions Brazil, good approximation between values...
Accurately forecast performance and durability is a critical issue for improving the design of new existing pavements. The poor pavement increases traffic congestion, compromises safety, raises maintenance costs due to frequent repairs. resilient modulus one most unbound material property inputs in several current procedures. Recent studies have addressed problem prediction using different methods, including computational intelligence approaches. In this paper, hybrid intelligent system...
This was a study on the mechanical behavior of hot asphalt mixtures with regard to permanent deformation, considering static creep tests and parameters derived from Superpave compaction curve. For mixture production, mineral aggregates two types binder (CAP 50/70 AMP 60/85) were used. These designed using methodology compacted in content number gyrations according design. design condition, conventional CAP showed better workability lower deformation than 60/85 polymer binder. Furthermore,...
O presente trabalho apresenta a avaliação de uma metodologia alternativa para determinação do comportamento laterítico ou não dos solos tropicais graduação graúda e grau nocividade da fração argila destes solos. Inicialmente, três amostras foram analisadas acordo com os critérios normativos. Em seguida foi utilizada alternativa, baseada no ensaio adsorção azul metileno, avaliar o argila, na classificação MCT, determinar caráter solo que passa peneira nº 10 (2,0 mm). Os resultados mostraram...
A avaliação dos materiais utilizados na pavimentação envolve a execução de ensaios geotécnicos que contemplam diversos parâmetros. interpretação isolada cada um dificulta decisão utilização ou exclusão do material. Além disso, ainda hoje, muitos laboratórios geotecnia não possuem os equipamentos necessários o conhecimento técnico para realização da metodologia MCT (miniatura, compactado, tropical) e dessa forma, classificar solos tropicais. Nesse contexto, esse trabalho tem como objetivo...
ABSTRACT In the new Brazilian mechanistic-empirical design method of asphalt pavements, MeDiNa, characterization permanent deformation (PD) for selection soils and gravel is based on tests performed with at least 150,000 loading cycles each nine specimens indicated in DNIT standard. Despite providing information about material behavior under a wide range testing conditions, experimental program related to these PD characterizations time consuming it believed that can be optimized. This paper...
The seed moduli selected for backcalculation analysis of multilayer flexible pavement can have significant effects on the performance software and, sometimes, final solutions overlay designs. Therefore, this paper aims to analyze variability resilient (MR) obtained by programs, taking different as input data. To end, data from non-destructive structural evaluation (falling weight deflectometer [FWD]) were used in three regions Brazil. Thereafter, deflection basin values and inputted into two...
The procedures for design and reinforcement projects regarding flexible pavements available in Brazil are mostly based on empirical models developed from studies carried out specific localities, therefore, should only be used cases where equivalent climatic traffic conditions observed. national highway agencies partnership with universities research centers have been working to change this scenario through the development of a mechanistic-empirical method that is more compatible Brazilian...
RESUMO Este trabalho apresenta os resultados de uma pesquisa experimental que objetivou estudar o comportamento mecânico mistura betuminosa a frio sob efeitos cargas estáticas e repetidas. Após caracterização dos agregados do ligante empregados na pesquisa, efetuou-se mistura, partir da dosagem Marshall, obtendo teor projeto equivalente 8,5% emulsão. Nesse emulsão, moldaram-se várias amostras, foram submetidas aos ensaios módulo resiliência, resistência à tração por compressão diametral...
The interface bonding conditions between the pavement layers is one of main factors influencing performance structure. present paper analyzes effects on process overlay design in flexible pavements. data were collected by deflection testing using Falling Weight Deflectometer (FWD) and drilling cores. Simulations performed software BackMeDiNa, MeDiNa AEMC for three different layers. backcalculated moduli, thicknesses, cracked area fatigue damage compared under conditions. In most simulations,...
This study aimed to analyze the influence of different methodologies determine maximum specific gravity on Superpave mix design method. The comparative analysis focused volumetric parameters, choice particle size and, consequently, respective asphalt binder contents studied mixtures. Regarding particularities research, there were no significant differences in obtained using two adopted for determining gravity. From a practical point view, adoption any methods interfered little with results...
O presente artigo discorre sobre pesquisa acerca do uso de material alternativo, ambientalmente inerte, caso dos rejeitos industriais britados ardósia, fisicamente transformados em agregados, como integrantes das camadas granulares e revestimento um pavimento asfáltico. Trata-se uma solução viável, ponto vista técnico ambiental, para a reciclagem deste tipo pavimentos asfálticos, contribuindo mitigação impactos ambientais decorrentes da exploração ardósia - rocha ornamental na maior...
Com o avanço e desenvolvimento dos grandes centros urbanos, os serviços de tratamento água esgoto tem sido enorme importância para a qualidade vida da população. Porém, são geradas quantidades resíduos nos processos disposição final destes um grande problema as autarquias concessionárias. A pesquisa teve como objetivo precípuo realizar uma análise laboratorial desidratados estações (lodo ETA) Região Metropolitana Belo Horizonte – RMBH, visando sua utilização em camadas pavimentos. O estudo...
The goal of this study was to analyze the structural sensitivity a flexible pavement, whose asphalt layers underwent variations in its mechanical properties due binder content and mix design method Marshall Superpave. A variation ±0.5% within optimum contents used (service tolerance) considering possible permissible during mixture manufacturing process. values resilient modulus indirect tensile strength (Brazilian test) resulting mixtures were applied reference pavement structure analyzed by...
O presente artigo tem por objetivo apresentar o desempenho funcional, estrutural e de segurança viária uma pista em trecho rodoviário experimental, construído no Distrito Vargem Grande, município Papagaios, MG. pavimento foi com resíduos reciclados ardósia, material alternativo, ambientalmente inerte, empregado nas camadas reforço do subleito, sub-base, base revestimento, especial atenção para última, concreto asfáltico (CA), ser a camada mais nobre. da experimental teve como metodológica...
For a soil to be granulometrically stable, it must present low plasticity and granulometric composition that conforms with the limits regulated by standards. This article presents study of clay fraction activity three laterites from Triângulo Mineiro region, aiming use them in stabilized base. The experimental phase contained determination liquidity limit, plastic sand equivalent silica sesquioxide ratio, addition Methylene Blue spot test, linear shrinkage, MCT classification X-ray...
A verificação da deformação resiliente de camadas localizadas abaixo do revestimento é feita por meio ensaio triaxial carga repetida, um dos principais ensaios requeridos pelo Método Dimensionamento Nacional (MeDiNa), para obtenção Módulo Resiliência (MR) materiais pavimento. No Brasil, o está normalizado na norma DNIT 134/2018-ME. Algumas lacunas presentes deixam dúvidas durante a realização ensaio, acarretando em resultados que podem interferir no dimensionamento pavimento, especialmente...
Abstract This paper presents the results of an experimental research aimed at analyzing mechanical behavior a cold bituminous mixture under effects static and repeated loads. Initially, Marshall design was performed to determine contents according standard DNER (1994a). After obtaining contents, nine specimens were molded subjected following tests: resilient modulus, tensile strength by diametral compression, fatigue. The stability, independent from content used, surpassed minimum limit...