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Development of high performance concrete for use on Tennessee bridge decks and overlaysHamblin, Charles Herbert, January 2004 (has links) (PDF)
Thesis (M.S.)--University of Tennessee, Knoxville, 2004. / Title from title page screen (viewed Sept. 22, 2004). Thesis advisor: Edwin G. Burdette. Document formatted into pages (ix, 82 p. : ill. (some col.)). Vita. Includes bibliographical references (p. 62-68).
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An investigation into possible means of increasing the strength of lightweight high strength concrete /Edwards, Derek Oswald. January 1993 (has links)
Thesis (M. Phil.)--University of Hong Kong, 1993.
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Production and quality control of high performance concrete in Texas bridge structures /Myers, John Joseph, January 1998 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 1998. / Vita. Includes bibliographical references (leaves 529-539). Available also in a digital version from Dissertation Abstracts.
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Behavior of high-strength concrete plates under impact loading /Murtiadi, Suryawan, January 1999 (has links)
Thesis (M. Eng.), Memorial University of Newfoundland, 1999. / Bibliography: p. 137-142.
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Behaviour of high-strength concrete under biaxial loading conditions /Hussein, Amgad Ahmed. January 1998 (has links)
Thesis (Ph. D.), Memorial University of Newfoundland, 1998. / Bibliography: leaves 229-245.
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Bond characteristics of high strength concrete /Alavi-Fard, Mehdi, January 1999 (has links)
Thesis (Ph.D.)--Memorial University of Newfoundland, 1999. / Restricted until May 2002. Bibliography: p. 237-254.
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Prefabricated cage system for reinforcing concrete membersShamsai, Mohammad, January 2006 (has links)
Thesis (Ph. D.)--Ohio State University, 2006. / Title from first page of PDF file. Includes bibliographical references (p. 334-340).
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Effects of confinement and small axial load on flexural ductility of high-strength reinforced concrete beamsChau, Siu-lee. January 2005 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.
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Concreto de alta resistência: composição, propriedades e dimensionamento / High-strength concrete: composition, properties and designInês Santana da Silva 03 February 1995 (has links)
Concretos de alta resistência têm sido usados em estruturas, atualmente, em diversas partes do mundo. Entretanto, no Brasil, pouco se conhece sobre seu comportamento. Este trabalho fornece uma visão geral das aplicações, dos materiais empregados na produção, das propriedades mecânicas e do comportamento estrutural dos concretos de alta resistência. Resultados experimentais obtidos por alguns pesquisadores, para pilares com carga axial e para vigas sujeitas a flexão e a cisalhamento, são comparados com valores teóricos, calculados com procedimentos usuais relativos a concretos de resistência usual. Para os pilares, é inquestionável a necessidade do confinamento do núcleo de concreto, utilizando armadura de cintamento. Na flexão das vigas, as taxas mínimas para armadura longitudinal, sugeridas pelas normas para concretos usuais, não são suficientes; é importante ter valores maiores que esses. E para cisalhamento, as recomendações das normas são satisfatórias. / Nowadays, high-strength concrete has been used in structures all over the world. However, in Brazil, not much is known about its behavior. This work provides an overview of the applications, the materials employed in production, the mechanical properties, and the structural behavior of high-strength concrete. Experimental results obtained by several researchers, for columns under axial load and beams under flexure and shear, are confronted with theoretical values, computed by normal procedures relative to normal strength concrete. For columns, it is unquestionable the need of confinement of the concrete core by transverse reinforcement. In beams under flexure, the minimum rates for longitudinal reinforcement, suggested by the codes for usual concrete, are not enough; it is important to have values greater than those. And for shear, the codes requirements are satisfactories.
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Análise experimental de pilares de concreto de alto desempenho submetidos à compressão simples / Experimental analysis of high strength concrete columns (60 MPa) under axial compressionMarcos Vinícios Mendonça de Queiroga 30 March 1999 (has links)
O objetivo da pesquisa foi obter subsídios para o projeto de pilares de concreto de alta resistência, submetidos à compressão simples, com concreto de resistência média de 60 MPa. Este projeto faz parte de um plano mais amplo onde já se têm resultados experimentais que traduzem o comportamento de pilares moldados com concreto de resistência média à compressão de 80 MPa. Nestes constatou-se a participação isolada do núcleo de concreto definido pelo eixo da armadura transversal como seção resistente dos pilares. Na etapa experimental foram ensaiados pilares com seções transversais quadradas de 200 mm x 200 mm e retangulares de 150 mm x 300 mm. As alturas dos pilares correspondem a seis vezes a menor dimensão da seção transversal, portanto, 1200 mm e 900 mm, respectivamente. Nos modelos de seção quadrada, o valor médio das relações entre as forças últimas experimentais e as forças últimas teóricas, considerando a seção total de concreto, resultou igual a 0,82, indicando que a seção resistente não é a seção total. Por outro lado, a média das relações entre as forças últimas experimentais e as forças últimas teóricas, considerando apenas a área do núcleo limitada pelo eixo dos estribos, resultou igual a 1,21, o que mostra que a seção resistente pode ser considerada, no Estado Limite Último, como a seção do núcleo. / This research\'s aim is to obtain information for design of high strength concrete columns under concentrically loads with medium cylinder compressive strength of 60 MPa. This project belongs to a more extensive plan which already has experimental results that represent the behavior of columns performed with concrete with medium cylinder compressive strength of 80 MPa. In these models has been verified the independent participation of concrete core defined by the transversal reinforcement axis as resistant section near the ultimate load. In the experimental stage it was tested twelve columns with square (200 mm x 200 mm) and rectangular (150 mm x 300 mm) cross sections. The height of the columns corresponds to six times the smallest dimension of the cross section, 1,200 mm and 900 mm, respectively. The medium value of the ratios between the ultimate experimental force and the ultimate theoretical force, regarding the full concrete section, was 0.82, indicating that the resistant section is not the full section. On the other hand, the medium of ratios between the ultimate experimental force and the ultimate theoretical force, considering only the core area limited by the axis of the lateral reinforcement bars, was 1.21, what shows that the resistant section can be considered as the core section in the Ultimate Limit State.
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