Mineralogical Laboratory Tests
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Geological - geotechnical characterization of different lithotypes in an underground mine
Abstract A mineralogical, geological and geotechnical characterization of several rock types (phyllite, dolomite, breccia and marl) from an underground mine site aimed, among other things, to identify its mineral composition and to provide parameters to support the understanding of rock mass behavior. For this purpose, it was possible to perform laboratory a
REM, Int. Eng. J.. Publicado em: 2021-01
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2. Análises de dosagens de concreto asfáltico do tipo Pré Misturado a Frio (PMF) utilizando Resíduos da Construção e Demolição de obras (RCD)
RESUMO Na construção civil, um problema ambiental recorrente é a geração e disposição de Resíduos de Construção e Demolição (RCD) de obras. A utilização do RCD como agregados na composição de concreto asfáltico, do tipo Pré Misturado a Frio (PMF), torna possível a execução de pavimentos rodoviários de baixo tráfego. Diante desses fatos
Matéria (Rio J.). Publicado em: 25/11/2019
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3. Caracterização de rejeitos de minério de ferro para uso em pavimentação / Characterization of iron ore tailings for use in paving
In this work it was carried out a series of laboratory tests towards chemical, mineralogical and geotechnical characterization of rejects from iron ore processing, for use in paving. Material sampling was done in specific points as they were generated during the beneficiation process along the cycle, in order to preserve their properties. The alternative app
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/06/2011
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4. INFLUÊNCIA DA MINERALOGIA NA ETAPA DE SEPARAÇÃO DA LAMA VERMELHA NO PROCESSO BAYER / INFLUÊNCIA DA MINERALOGIA NA ETAPA DE SEPARAÇÃO DA LAMA VERMELHA NO PROCESSO BAYER
A mineralogical characterization of several bauxites was undertaken in order in order to improve the quantification of all iron-bearing species occurring in the beneficiated ores and in the red mud obtained from the alkaline digestion tests carried out on laboratory scale. A correlation between the mineralogical composition and the settling rate of red mud w
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/05/2011
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5. Influência de variáveis de compactação na estrutura dos solos: caracterizações geotécnica, química, mineralógica e microestrutural / Influence of laboratory compaction variables in soils structure: geotechnical, chemical, mineralogical and microstructural characterizations
This research addressed the effect of laboratory methods of static and dynamic compaction on compaction parameters, mechanical strength and compressibility of three gneiss residual soils (two young and one mature soils) and two granite residual soils (one young and one mature soils) from the Minas Gerais State, Brazil. Disturbed soils samples were collected,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2010
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6. Colapsibilidade com sucção controlada de um solo coluvionar e laterítico de Campinas/SP / Collapsibility with controlled suction of a colluvial and lateritic soil from Campinas/SP
This study aims at investigating the collapsibility of coluvionar and lateritic soil by oedometer tests with controlled suction, performed in the laboratory, and by the interpretation of the soilimpregnated thin plates before and after the tests, so as to take into account the differences between natural and "after collapse" structures. The undisturbed soil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/05/2010
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7. AVALIAÇÃO DO TRANSPORTE DO HERBICIDA PARAQUAT EM SOLOS DO CAMPO EXPERIMENTAL DE BOM JARDIM, RJ / EVALUATION OF TRANSPORT OF HERBICIDE PARAQUAT IN SOILS OF EXPERIMENTAL FIELD OF BOM JARDIM, RJ
This paper presents results of a study, performed in the laboratory, on the mobility of the herbicide Paraquat, investigated from its percolation through soils samples withdrawn from the Experimental Field of Bom Jardim, RJ. It was determined the physical, chemical and mineralogical properties of samples collected in such manner to form a profile of ground l
Publicado em: 2008
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8. Curvas de retenção de agua de um solo coluvionar de Campinas obtidas mediante tecnicas de laboratorio e de campo / Soil water characteristic curve of a colluvial soil determined by techniques laboratory and field
This research focuses in to determine the relationship of moisture content (or degree of saturation) versus the value of the suction matrix, known as soil water characteristic curve (SWCC), to the soil surface layer of the Field Experimental of Soil Mechanics and Foundation of UNICAMP. This profile consists of colluvial, lateritic, porous, on condition unsat
Publicado em: 2008
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9. Estudo geolÃgico-geotÃcnico de uma encosta com problemas de instabilidade no MunicÃpio de Camaragibe - PE
The current work presents a study regarding the existing instability in the slope localized in the ascent of the Vale das Pedreiras, in the municipality of Camaragibe â PE. The principal objective of the research was to identify the causes and to undestand the mechanisms involved in the problem jointly with the realization of an analysis of the stability of
Publicado em: 2007
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10. Estudo de mycobacterium phlei (ATCC 11758) como agente agregante para hematita e quartzo
Several microorganisms have been studied in flotation, sedimentation and filtration processes for several minerals, with positive results. Studies show Mycobacterium phlei as flocculant agent and potential collector for hematite. The objective of this work is to study the influence of the addition of the bacteria Mycobacterium phlei (ATCC 11758) upon sedimen
Publicado em: 2007
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11. CARACTERÍSTICAS DE COMPRESSIBILIDADE DE UMA ARGILA MOLE DA ZONA INDUSTRIAL DE SANTA CRUZ, RIO DE JANEIRO / COMPRESSIBILITY CHARACTERISTICS OF A SOFT CLAY FROM THE SANTA CRUZ INDUSTRIAL ZONE, RIO DE JANEIRO
A large research work comprising extensive field and laboratory investigations on a soft clay deposit located in the Industrial Zone of Santa Cruz, Rio de Janeiro, RJ, is being developed at PUC-Rio since 2005. Occurrences of settlement of structures built in this region have been reported since the end of the decade of 1970. This work presents results of lab
Publicado em: 2006
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12. PHYSICAL, CHEMICAL, MINERALOGICAL AND MECHANICAL PROPERTIES OF A BASALTIC RESIDUAL SOIL PROFILE FROM A CUT IN THE NORTH-SOUTH RAILWAY IN THE STATE OF TOCANTINS / PROPRIEDADES FÍSICAS, QUÍMICAS, MINERALÓGICAS E MECÂNICAS DE UM PERFIL DE SOLO RESIDUAL BASÁLTICO LOCALIZADO EM UM CORTE DA FERROVIA NORTE-SUL, NO ESTADO DE TOCANTINS
Embora uma vasta área do Brasil esteja localizada em regiões que a formação de basalto se faz presente, são raros os estudos em perfis contendo solo e / ou rochas de caráter básico objetivando correlacionar características químicas e mineralógicas com características geotécnicas. A área do presente estudo localiza-se em um corte em solo na Ferro
Publicado em: 2005