Thesis (M. Eng.)--Carleton University, 1999. / Includes bibliographical references (p. 164-166). Also available in electronic format on the Internet.

Thesis (M. Eng.)--Carleton University, 2000. / Includes bibliographical references (p. 152). Also available in electronic format on the Internet.

Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (p. 119-133) Also available in print.

Thesis (M.S.)--Mississippi State University. Department of Forest Products. / Title from title screen. Includes bibliographical references.

The GEPECON, Studies and Researches Concrete Group, has developed a researches collection about the concrete with mineral additions over the last 10 years. Starting from these papers we have decided to gather some projects data to be statistically analyzed. The present paper had the objective of studying the influence of the independent variables (water/binder relation, compression strength, type and content of mineral addition) on the dependent variables of microstructure and durability of the concrete through the micro-statistic tools. The variance analysis and the sim pie and multiple lineal regression were applied 50 that it was possible to determine which was the most significant independent variable for these concrete properties. Data were analyzed in five projects and later they were gathered by variables in order to accomplish the statistical analysis. In the general model, through the multiple lineal regression, the independent variables which has been exerted more influence on the dependent variables were the addition content and the compression strength, while for durability they were the content and the addition type. However, in the single models with the simple lineal regression, the most highlighted independent variables on the content of combined water and remainder calcium hydroxide were the content and the addition type; in the poresymmetry they were the compression strength and the water/binder relation, while for the dependent variables of the durability the water/binder relation and the compression strength were, respectively, the most significant ones. For the addition type, the most influent mixtures were the binary mixtures with CCA and CV, the ternary ones CCA-CV on the microstructure and CV-E on the durability. The most significant addition content was 25% for the microstructure and 70% for the durability. As it was already expected, starting from these analyzes has been emphasized the results of the sim pie lineal regression that showed a larger dispersion and lower significance in relation to the ones of the multiple lineal regression. / O Grupo de Estudos e Pesquisas em Concreto, 'GEPECON', desenvolveu um acervo de pesquisas, sobre concreto com adições minerais nos últimos 10 anos. De posse destes trabalhos, tomou-se a iniciativa em reunir dados de alguns projetos e analisá-Ios estatisticamente. O presente trabalho teve por objetivo estudar a influência das variáveis independentes (relação água/aglomerante, resistência à compressão, tipo e teor de adição mineral), nas variáveis dependentes da microestrutura e durabilidade do concreto através de ferramentas estatísticas. Foi utilizada análise de variância, regressão linear simples e múltipla para que se pudesse descobrir qual das variáveis independentes foi de maior significância para essas propriedades do concreto. Os dados foram analisados em cinco projetos e, posteriormente, reunidos por variáveis para realizar a análise estatística. No modelo geral, através da regressão linear múltipla, as variáveis . independentes que mais influenciaram as variáveis dependentes da microestrutura foram o teor de adição e a resistência à compressão e, para a durabilidade, o teor e o tipo de adição. Já nos modelos individuais, com a regressão linear simples, as variáveis independentes que mais se destacaram no teor de água combinada e hidróxido de cálcio remanescente foram o teor e o tipo de adição; na porosimetria, a resistência à compressão e a relação água/aglomerante e para as variáveis dependentes da durabilidade, a relação água/aglomerante e resistência à compressão, foram, nesta ordem, os mais significativos. Para o tipo de adição, as misturas binárias com CCA e CV, as ternárias CCA-CV na microestrutura e CV-E na durabilidade apresentaram maior influência. O teor de adição de maior significância foi 25% para a microestrutura e 70% para a durabilidade. Com base nessas análises, evidenciaram-se os resultados da . regressão linear simples que apresentaram uma maior dispersão e significância mais fraca do que os da regressão linear múltipla, o que já era esperado.

Historic towns and historic buildings are important witnesses of the past cultures and civilizations. Their sustainability and transfer to the next generations require continuous maintenance and repair interventions which should be compatible with their original construction techniques, details and materials. In order to define proper interventions to a historic building, it is necessary to understand how and from what it is built. Therefore, traditional construction materials, detailings and techniques should be well understood prior to any kind of intervention to a historic building. The objective of this study is, first of all, to provide a body of knowledge on traditional construction process and techniques / then, to store, structure, process, represent and share this knowledge in a systematic and controlled way by means of a web based GIS portal. In this respect, traditional timber framed houses of Tarakli in Sakarya has been chosen as the case study, on account of being one of the significant historical towns in our country where the tissue together with historical building is still conserved. For this study, among the applications of GIS technology, Web-based GIS has been determined as the most effective and functional tool in order to develop an online information portal for storing, displaying the collected raw data and sharing with other users as utilizable information.

Orientadores: Ricardo de Lima Isaac, Dione Mari Morita / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo / Made available in DSpace on 2018-08-12T17:03:23Z (GMT). No. of bitstreams: 1 ChavezPorras_Alvaro_D.pdf: 6747403 bytes, checksum: 235eb042865cea1fce937156bb45c1d2 (MD5) Previous issue date: 2007 / Resumo: Diante da grande quantidade de resíduos sólidos gerados, incluídos os resíduos da construção e demolição - RCD, na cidade de Campinas e da precariedade do sistema de planejamento e gestão dos aterros sanitários de algumas áreas da região, investigou-se a viabilidade técnica, econômica e ambiental do uso de lodo desaguado de Estação de Tratamento de Água (ETA) e de agregado miúdo reciclado do entulho na fabricação de elementos de alvenaria tipo concreto. Tais elementos da construção civil foram testados segundo as normas técnicas pertinentes da Associação Brasileira de Normas Técnicas, tanto aquelas referentes às propriedades físico-mecânicas quanto àquelas ambientais, considerando-se os períodos de fabricação e pós-consumo, quando ele virar entulho. Os lodos e entulhos afetam grandemente os ecossistemas onde são lançados. Com eles, como fonte alternativa de matéria-prima, produziram-se elementos de alvenaria, estruturais e de vedação, em diferentes proporções, que foram avaliados nas dimensões, à compressão simples e à absorção de água; também, os materiais foram avaliados ambientalmente. Os resultados mostraram que a umidade do lodo influenciou significativamente na qualidade dos tijolos tipo solo-cimento, sendo possível sua confecção somente com teor de umidade abaixo de 50% de sólidos totais, ST. Nenhum tijolo produzido nas condições propostas atendeu simultaneamente aos requisitos das normas brasileira de qualidade - dimensões, absorção de água e resistência à compressão. Referente aos blocos tipo concreto não estruturais (vedação), com até 3% de lodo seco ou 1% de lodo úmido, agregado de entulho nas duas matrizes avaliadas (concreto e cerâmica) e 10% de cimento, poderiam servir de base para uma produção industrial, sendo destinados à infra-estrutura urbana, já que se obtém evidentes ganhos econômicos e ambientais (propondo-se o uso de um passivo ambiental), sem perda da qualidade técnica dos produtos. / Abstract: Given the large amount of solid waste generated in the city of Campinas, SP, Brazil and the precariousness of the system of landfills in the region, it is investigated the technical feasibility, economic and environmental use of dry sludge of station water treatment plant and aggregate debris recycled kid in the manufacture of bricks cement soil type and blocks of concrete type. Such components of the building have been tested according to the relevant technical standards of the Brazilian Association of Technical Standards, both those related to the physical-mechanical properties as those environmental, considering the periods of manufacturing and post-consumer. These wastes greatly affect the ecosystems where they are launched and today, will be increasingly seen as an alternative source of raw material. With these materials, structural components produced there and sealing in different traits, which were tested for compression simple, the absorption of water, and environmental dimensions. The results showed that the humidity of sludge significantly influence the quality of soil-cement bricks kind, and it is possible only with its confection moisture content below 50%. None brick produced in conditions studied attended both Brazilian standards of quality-size, absorption of water and resistance to compression. The tests showed that no structural blocks of concrete (seal), with up to 3% of dry sludge and 1% of wet sludge, debris aggregate of the two matrices evaluated (concrete and ceramic) and 10% of cement, could serve as the basis for a production industry, for urban infrastructure, as it has obvious economic and environmental gains (is itself making use of a huge environmental liabilities), without loss of technical quality of the products. / Doutorado / Saneamento e Ambiente / Doutor em Engenharia Civil

Our planet has been facing enormous challenges over the last century, caused by population growth, an ever-evolving industry, resulting in ever-increasing CO2 production, rising water levels, misuse of agricultural land and the extinction of animal species. This causes the destruction of the Biome. Architectural and urban tendencies in the construction of cities, which do not change even today, use the maximum area, materials that cannot be recycled, also have a large share in this. Insufficient use of renewable resources, modern agriculture, self-sufficiency, both housing and urban structures. The reason for not using these technologies is largely a political and commercial problem. The aim of this work is to examine the problems we face today and find meaningful solutions. Change existing architectural and urban trends. To create a self-sufficient structure in places where Biomes were destroyed and to create new ones accordingly. These places often have poor living conditions, such as high temperatures, lack of drinking water and overcrowding. With the help of simple rules of working with the landscape and the use of modern technology, create a new biosphere environment, change the climatic conditions in a given place and create suitable conditions for the life of both plant and animal communities. The structure should be inhabited by a certain number of people who will live in modules that will be fully self-sufficient, following the ISS model. Provide plenty of drinking water, food and energy. The structure should be created from plastic waste by new construction technologies, such as 3D printing using nanotechnology and carbon fiber. This should make it fully recyclable and renewable. The goal is to work with one structure and subsequently create another structure.