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Uma avaliação de Usabilidade da aplicação www.abc.ua.pt
Beatriz Sousa Santos; Paulo Dias; Hugo Pais; Jorge Pires; Luís Gouveia; Pedro do MarThis paper describes a usability evaluation of a Web application (www.abc.ua.pt) performed by students of an introductory course on Human-Computer Interaction in 2005/2006, at the University of Aveiro.This evaluation was based on heuristic evaluation, observation methods and a short questionaire applyed to users with different profiles. The methods and main results obtained are presented. ; Neste artigo descre...
Modeling of airport rigid pavement structure made of RCC and recycled cement co...
Cojocaru, Radu; Pais, Jorge C.; Andrei, Radu; Budesc, MihaiThis paper presents the results of the research undertaken by the authors in the frame of the postdoctoral program 4D-POSTDOC. After a short introduction on the actual status of structural design of airport pavements including geometrical and loading characteristics of complex loading gears, the modeling and the structural design of airport rigid pavements, constructed with conventional and various recycled mat...
Multi-cracks modeling in reflective cracking
Pais, Jorge C.; Minhoto, Manuel J. C.; Shatnawi, ShakirReflective cracking is a major concern for engineers facing the problem of road maintenance and rehabilitation. The problem appears due to the presence of cracks in the old pavement layers that propagate into the pavement overlay layer when traffic load passes over the cracks and due to the temperature variation. The stress concentration in the overlay just above the existing cracks is responsible for the appea...
Asphalt rubber interlayer benefits in minimizing reflective cracking of overlay...
Shatnawi, Shakir; Pais, Jorge C.; Minhoto, Manuel J. C.This paper provides an overview of the asphalt rubber interlayer benefits on reflective crack retardation in overlays over rigid pavements. These interlayers are known in California as asphalt rubber absorbing membrane interlayers (SAMI-R) or as asphalt rubber aggregate membrane interlayers (ARAM-I) chip seals. The paper focuses on the performance in terms of field project reviews, laboratory performance tests ...
Multi-cracks modeling in reflective cracking
Pais, Jorge C.; Minhoto, Manuel; Shatnawi, ShakirReflective cracking is a major concern for engineers facing the problem of road maintenance and rehabilitation. The problem appears due to the presence of cracks in the old pavement layers that propagate into the pavement overlay layer when traffic load passes over the cracks and due to the temperature variation. The stress concentration in the overlay just above the existing cracks is responsible for the appea...
Asphalt rubber interlayer benefits in minimizing reflective cracking of overlay...
Shatnawi, Shakir; Pais, Jorge C.; Minhoto, ManuelThis paper provides an overview of the asphalt rubber interlayer benefits on reflective crack retardation in overlays over rigid pavements. These interlayers are known in California as asphalt rubber absorbing membrane interlayers (SAMI-R) or as asphalt rubber aggregate membrane interlayers (ARAM-I) chip seals. The paper focuses on the performance in terms of field project reviews, laboratory performance tests ...
Resolução de sistemas de equações lineares em processamento paralelo
Pais, Jorge CarvalhoDissertação apresentada para obtenção do grau de Mestre em Engenharia Civil, na Faculdade de Engenharia da Universidade do Porto, sob a orientação do Prof. Doutor Raimundo Delgado
Asphalt rubber interlayer benefits on reflective crack retardation of flexible ...
Shatnawi, Shakir; Pais, Jorge C.; Minhoto, Manuel J. C.This paper provides an overview of the asphalt rubber interlayer benefits on reflective crack retardation in flexible pavement preservation and rehabilitation strategies. These interlayers are known in California as asphalt rubber absorbing membrane interlayers (SAMI-R) or as asphalt rubber aggregate membrane interlayers (ARAM-I) chip seals. These interlayers have been used successfully as part of cape seals an...
Influência do tipo de asfalto base no desempenho mecânico de misturas com asfal...
Thives, Liseane Padilha; Trichês, Glicério; Pereira, Paulo A. A.; Pais, Jorge C.Ensaios realizados em laboratório e as observações em campo de misturas com asfalto-borracha têm demonstrado que estas misturas apresentam um desempenho claramente superior ao das misturas convencionais. Isto ocorre porque a borracha utilizada para modificar o asfalto incorpora neste, suas componentes relativas à flexibilidade e contribuindo ainda para reduzir o envelhecimento do asfalto. A interação entre o as...
O tipo de modelação dos pneus dos veículos pesados na avaliação do desempenho d...
Vale, Aline C.; Pais, Jorge C.; Pereira, Paulo A. A.Os veículos pesados são os principais responsáveis pela degradação dos pavimentos rodoviários provocando principalmente fendilhamento por fadiga e deformações permanentes. Os pavimentos rodoviários são dimensionados para suportar o tráfego de projecto, o qual é composto por diferentes tipos de veículos com diferentes tipos de eixos e rodas, sendo a carga total do veículo função de vários factores. Alguns destes...
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