Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-07-20T22:04:58Z No. of bitstreams: 1 MarceloDeSouzaMarques_TESE.pdf: 37145342 bytes, checksum: eb13cda95cd905ff751d5965bb02d4ae (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-07-21T21:20:45Z (GMT) No. of bitstreams: 1 MarceloDeSouzaMarques_TESE.pdf: 37145342 bytes, checksum: eb13cda95cd905ff751d5965bb02d4ae (MD5) / Made available in DSpace on 2016-07-21T21:20:45Z (GMT). No. of bitstreams: 1 MarceloDeSouzaMarques_TESE.pdf: 37145342 bytes, checksum: eb13cda95cd905ff751d5965bb02d4ae (MD5) Previous issue date: 2016-02-23 / Obteve-se e estudou-se a viabilidade do uso de TPA ( Tecido Plano de Algod?o) tipo tela, para ensacamento, com gramatura de 216,8 g/cm2 em um comp?sito de matriz de resina poli?ster ortoft?lica cristal. O processo de obten??o do comp?sito foi testado em rela??o ao n?mero m?ximo de camadas que poderia ser utilizado, sem comprometer a sua processabilidade e a fabrica??o dos CPs em molde compressivo. Foram escolhidas e testadas cinco configura??es/formula??es, com 1, 4, 8, 10 e 12 camadas de tecido plano de algod?o - TPA. O TPA n?o foi submetido a tratamento qu?mico, passando apenas por um processo de lavagem mec?nica. O comp?sito em suas v?rias configura??es/formula??es foi caracterizado para a determina??o de suas principais propriedades f?sicas. As propriedades de maior viabilidade do comp?sito foram a resist?ncia a flex?o, aproximando-se da matriz e a resist?ncia ao impacto, com superioridade em rela??o a resina de poli?ster. Outra propriedade que demonstrou bom resultado em rela??o a outros comp?sitos foi a absor??o de ?gua. Analisando-se todas as propriedades determinadas as configura??es/formula??es com maior viabilidade foram a TA8 e TA10, por combinarem boa processabilidade e resist?ncia mec?nica mais elevada, com menor perda em rela??o a resina poli?ster matriz. O comp?sito apresentou comportamento mec?nico inferior ao da resina matriz para todas as formula??es estudadas, com exce??o da resist?ncia ao impacto. O MEV evidenciou uma boa ades?o entre as camadas de TPA e a resina poli?ster matriz, sem a presen?a de micro vazios na matriz confirmando o eficiente processo de fabrica??o dos corpos de prova para caracteriza??o. O comp?sito proposto apresentou viabilidade para a fabrica??o de estruturas com baixas solicita??es de esfor?os mec?nicos, e como foi demonstrado para a fabrica??o de prot?tipos solares. / He was obtained and studied the feasibility of using TPA (Tissue Cotton Plan) screen type, for bagging, with a weight of 207.9 g / m2 in a composite of orthophthalic crystal polyester resin matrix. The process for obtaining the composite was tested against the maximum number of layers that could be used without compromising the processability and manufacturing of CPs in compression mold. Five configurations / formulations were selected and tested at 1, 4, 8, 10 and 12 layers of cotton tissue - TPA. TPA was not subjected to chemical treatment, only by passing a mechanical washing process. The composite in its various configurations / formulations was characterized to determine its physical properties. The properties of the composite were higher viability resistance to bending, approaching the matrix and impact resistance, superiority in relation to the polyester resin. Another property that has shown good result compared to other composite has water absorption. Analyzing all the properties set the settings / formulations with higher viability were TA8 and TA10, by combining good processability and higher mechanical strength, with lower loss compared to polyester resin matrix. The composite showed lower mechanical behavior of the resin matrix for all the formulations studied except the impact resistance. The SEM showed a good adhesion between the layers of TPA and polyester resin matrix, without the presence of micro voids in the matrix confirming the efficient manufacturing process of the samples for characterization. The composite proposed proved to be viable for the fabrication of structures with low requests from mechanical stresses, and as demonstrated for the manufacture of solar and wind prototypes, and packaging, shelving, decorative items, crafts and shelves, with good visual appearance.

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2017-08-07T13:10:24Z No. of bitstreams: 1 R?GIA MARIA PETITTO.pdf: 3577833 bytes, checksum: 125f036f5ae5942ebbd9906d675670d3 (MD5) / Made available in DSpace on 2017-08-07T13:10:24Z (GMT). No. of bitstreams: 1 R?GIA MARIA PETITTO.pdf: 3577833 bytes, checksum: 125f036f5ae5942ebbd9906d675670d3 (MD5) Previous issue date: 2017-06-21 / The objective of this work was to characterize the recycled aggregates generated in the metropolitan region of Campinas and to test its application in the production of mortars for general use. From a qualitative approach, with an exploratory objective, the surveys of the current legislation and legal requirements imposed to solid waste management and the panorama of this management in the metropolitan region of Campinas were carried out. The six recycling plants for the disposal of construction waste (RCC) generated in the implanted municipalities were identified and, based on the data collected, a map with the geographic location of these plants was elaborated. After the sample collection, with a quantitative approach of applied nature and exploratory objective, analyzes of the physical characteristics were made (grain size composition, 75 ?m sieve material, water absorption, clay cladding content and friable materials, Specific mass and organic impurity) and chemical (soluble salts and organic matter content by fire loss) of these materials. All the analyzed aggregates presented satisfactory results in the granulometric composition and water absorption tests. Regarding the content of fine material (less than 75 ?m), clay content and friable materials and organic impurities, few samples could be accepted for use recommended by the Brazilian Association of Technical Standards (ABNT). The analysis of the soluble salts content would also make it impossible to accept the aggregate of some suppliers. With the replacement of natural aggregate by the recycled aggregates, mortars with a 1: 3 dash (cement: aggregate) were prepared, and 20 and 40% of the natural aggregate were replaced. The characteristics of the mortars in the fresh state (water retention, incorporated air content, mass density) and hardened (water absorption by capillarity, capillary coefficient, compressive strength, flexural tensile strength and apparent specific mass in the Hardened state). From the results obtained, the analytical Hierarchy Process (AHP) methodology showed the content of incorporation of the recycled aggregate in the production of general purpose mortars composed of cement and sand. For the application of this method, weights were assigned to punctuated criteria related to the physical and mechanical performance of mortars and environmental criteria related to the exhaustion of natural resources and transport distance. The best result was found in mortar with a 20% substitute content of mixed recycled aggregate by municipal unit from Campinas, but it is not possible to observe a tendency to obtain better results in mortars with lower substitution content, nor exclusively by mortars with mixed recycled aggregates. / O presente trabalho teve por objetivo caracterizar os agregados reciclados gerados na regi?o metropolitana de Campinas e testar sua aplica??o na produ??o de argamassas para uso geral. A partir de uma abordagem qualitativa, com objetivo explorat?rio, foram realizados os levantamentos da legisla??o vigente e exig?ncias legais impostas ? gest?o dos res?duos s?lidos e do panorama desta gest?o na regi?o metropolitana de Campinas. As seis usinas recicladoras para destina??o dos res?duos de constru??o civil (RCC) gerados nos munic?pios implantadas foram identificadas e, a partir dos dados coletados, elaborou-se um mapa com a localiza??o geogr?fica destas usinas. Ap?s a coleta de amostras, com abordagem quantitativa de natureza aplicada e objetivo explorat?rio, foram realizadas an?lises das caracter?sticas f?sicas (composi??o granulom?trica, teor de material passante na peneira de 75 ?m, absor??o de ?gua, teor de torr?es de argila e materiais fri?veis, massa espec?fica e impureza org?nica) e qu?micas (sais sol?veis e teor de mat?ria org?nica por perda ao fogo) destes materiais. Todos os agregados analisados apresentaram resultados satisfat?rios nos ensaios de composi??o granulom?trica e absor??o de ?gua. J? quanto ao teor de material fino (menor que 75 ?m), teor de torr?es de argila e materiais fri?veis e impurezas org?nicas, foram poucas as amostras que poderiam ser aceitas para o emprego recomendado pela Associa??o Brasileira de Normas T?cnicas (ABNT). A an?lise do teor de sais sol?veis tamb?m inviabilizaria a aceita??o do agregado de alguns fornecedores. Com a substitui??o de agregado natural pelos agregados reciclados foram preparadas argamassas com tra?o de 1:3 (cimento:agregado), e substitui??o de 20 e 40% do agregado natural. Foram determinadas as caracter?sticas das argamassas no estado fresco (reten??o de ?gua, teor de ar incorporado, densidade de massa) e endurecido (absor??o de ?gua por capilaridade, coeficiente de capilaridade, resist?ncia ? compress?o, resist?ncia ? tra??o na flex?o e massa especifica aparente no estado endurecido). A partir dos resultados obtidos verificou-se, por aplica??o do m?todo de avalia??o multicrit?rios, com a metodologia Analytic Hierarchy Process (AHP), o teor de incorpora??o do agregado reciclado na produ??o de argamassas de uso geral compostas por cimento e areia. Para a aplica??o deste m?todo foram atribu?dos pesos a crit?rios pontuados ligados ao desempenho f?sico e mec?nico das argamassas e crit?rios ambientais ligados ao esgotamento dos recursos naturais e dist?ncia de transporte. O melhor resultado foi encontrado na argamassa com teor de substitui??o de 20% de agregado reciclado misto da unidade municipal de Campinas, mas n?o ? poss?vel observar tend?ncia de obter melhores resultados em argamassas com menor teor de substitui??o, nem t?o pouco exclusivamente por argamassas com agregados reciclados mistos.