5 resultados para Produtos reciclados

em Repositório Institucional da Universidade Estadual de São Paulo - UNESP


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This work deals with the continuation of Scientific Initiation research initiated by Tamura (2012), which draws up a mixture of soil and recycled aggregate analysis for paving of low traffic volume roads using local materials from the Vale do Paraíba region. The main steps of the process were the soil and recycled aggregate characterization, along with grading tests and California Bearing Ratio (CBR) applied to the soil, the recycled aggregate and the mixture of soil and recycled aggregate; aiming their use as base and sub-base in paving urban roads. The results are discussed, emphasizing the mechanical behavior. The current results are compared with the results of IC Tamura research, taking decisions over this job to the final product best result. For a greater understanding of the work in general were described paving, its structure, its components and its physical behavior. It has been intended to emphasize the importance of the mixture of soil and recycled aggregate to meet the quality requirements and compliance with the specifications of current technical standards, in the context of durability, natural materials economy, decreases volume in landfills and cost reduction

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Considering the high competitiveness in the industrial chemical sector, demand forecast is a relevant factor for decision-making. There is a need for tools capable of assisting in the analysis and definition of the forecast. In that sense, the objective is to generate the chemical industry forecast using an advanced forecasting model and thus verify the accuracy of the method. Because it is time series with seasonality, the model of seasonal autoregressive integrated moving average - SARIMA generated reliable forecasts and acceding to the problem analyzed, thus enabling, through validation with real data improvements in the management and decision making of supply chain

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Two of the major problems caused by construction activity are the production of construction and demolition waste (CDW) and the exploitation of mineral resources, causing big impacts on the environment. Therefore, the recycling has been shown as an alternative to mitigate the harmful effects of waste on the urban environment and prevent the exploitation of new raw materials. This course work aims to study the behavior of recycled aggregates from Vale do Paraíba in concrete and mortar. Initially, it presents the definitions of recycled aggregates according to CONAMA Resolution No. 307/2002, the aggregate settings for concrete and mortar (such as the grain size, its origin and density, and the characterization parameters according to ABNT), and the definition of ACI method of concrete mix design. Afterwards, it presents the characterization of materials separated by assays. After that, it shows the theoretical concrete proportioning applying the ACI method and experimental concrete proportioning. Then, the analysis of results is performed to finally conclude that the materials provided can't be used to replace natural aggregates because they cannot have the same performance. With the studies, it could be observed that the recycled aggregate presents a great complexity and diversity in origin, therefore the form how the material should be handled requires great care

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O ramo da cosmetologia obteve um avanço nos últimos anos em relação à complexidade e à diversificação de produtos. A indústria passou a investir também em cosméticos para o tratamento da pele saudável, devido à preocupação dos consumidores em mantê-la em bom estado e retardar o envelhecimento precoce, aliado ao aumento do poder aquisitivo da população e da expectativa de vida. A busca pelos tratamentos estéticos reflete essa nova situação e também abre novos canais de relacionamento entre produtos cosméticos e consumidores, de modo que alguns produtos passam a oferecer tratamento profissional, e outros a manutenção dele no dia a dia.Foi desenvolvida uma linha de produtos os quais receberam o cunho de cosmecêuticos, termo que, apesar de não possuir uma definição legal, está sendo utilizado como apelo mercadológico pelas empresas para se referirem aos cosméticos que possuem ativos que oferecem maiores benefícios e maior eficácia no tratamento da pele. Os produtos da linha envolvem itens de uso profissional, como os produtos para a limpeza de pele profunda, e produtos home care que são fundamentais para o tratamento da pele no dia a dia; todos foram desenvolvidos a fim de promover os fatores fundamentais de uma pele saudável: limpeza, hidratação e fotoproteção.