05.1 - Graduação (UACSA)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2909
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Resultados da Pesquisa
Item Análise de viabilidade entre concretos dosados pelos métodos da ACCP/ACI e IPT/USP(2019-07-08) Nascimento, Lucas Costa do; Araújo, Fernanda Wanderley Correa; http://lattes.cnpq.br/7616387320307731; http://lattes.cnpq.br/7949189322240161The proper determination of the proportion of materials in the production of a concrete can imply a significant reduction of the final cost of work, since it is one of the materials most used in construction. The wide use in civil works indicates the need to rationalize the quantity of materials composing the mixture by determining an efficient feature that allows an adequate interconnection between the different physical properties required of a concrete with the lowest possible cost. This study presents a comparative analysis of physical and mechanical properties, material consumption and cost between two dosing methods: the one proposed by the Brazilian Portland Cement Association (ABCP), which is an adaptation of the ICA method, and the experimental method IPT / EPUSP. From initial parameters (concrete volume, compressive strength, cone trunk abatement and physical properties of cement and aggregates) and following the prescriptions and steps described by the methods, the respective traces were determined for the molding of a certain amount of ruptured specimens aged 14 and 28 days. With the obtained data, it was verified that both methods are able to provide concretes with the predefined physical properties. In terms of cost, the financial analysis of material consumption, based on the reference prices of the National System of Costs Survey and Civil Construction Indices (SINAPI / PE April-2019), verified a greater material saving by the IPT / EPUSP.Item Avaliação das propriedades mecânicas de um concreto não estrutural utilizando agregado de PET em substituição ao agregado miúdo(2019-02-01) Meireles, Hygor Alves; Galvão, Simone Perruci; http://lattes.cnpq.br/1523292800241605; http://lattes.cnpq.br/4436024273659412Item Classificação e quantificação dos resíduos de construção e demolição (RCD) e suas pontencialidades de reciclagem ou reutilização em cinco obras de edificação na cidade do Recife(2017-08-30) Amorim Júnior, Laelson de Andrade; Galvão, Simone Perruci; http://lattes.cnpq.br/1523292800241605; http://lattes.cnpq.br/7943300714310248The city of Recife, region with several natural landscapes and attractive for tourism, business and leisure, has been developing annually. In most of the neighborhoods, there are large buildings being erected, leading the academic community and the state to worry about the type of policy adopted for the disposal, reuse and recycling of solid waste generated in construction, in order to avoid the environmental impact. In the Northeast Region of Brazil alone, 24,310 t / day of construction and demolition waste (CDW) were collected. Good results have already been visualized by Brazilian researchers regarding the reuse of residues, especially those of class A, generated on site. This work has proposed to classify the different types of construction and demolition waste and to indicate different forms of reuse in construction works in the city of Recife. Five (5) works were evaluated, from four (4) companies, located in different districts of Recife. To obtain the desired data, an electronic questionnaire, google forms platform, was developed by the research group. The construction traditional system of reinforced concrete was the main visualized in the works analyzed, generating as main types of residues: ceramic bricks, mortars, plaster, concrete and wood. In this work, recycling practices were verified in one of the analyzed companies, where brick and tile residues were reprocessed and used as a small aggregate for making mortars and lean concrete. However, the vast