Soil Tensile Strength
Mostrando 13-21 de 21 artigos, teses e dissertações.
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13. ESTUDO DE ALVENARIAS E REVESTIMENTOS DE GESSO RECICLADO DESTINADO À HABITAÇÃO POPULAR / Study of masonry and Coatings made by Recycled plaster for low cost housing.
The generation of large quantities of solid waste is a great problem faced by urban areas. Like all building materials, the gypsum plaster is a generator of solid waste. The amount and inadequate waste disposal cause serious environmental, social and economical impacts. This requires the search for quick and effective solutions for its management, through th
Publicado em: 2008
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14. Influência das condições tridimensionais de tensão e fluxo na estabilidade de um talude em solo não saturado / Influência das condições tridimensionais de tensão e fluxo na estabilidade de um talude em solo não saturado
This research deals with the analysis of a slope failure that took place during the construction of a water gallery, located in Brasilia, DF. The failure occurred in July of 2005 and resulted in the death of one construction worker. The research focuses on the influence of unsaturated soil conditions and on the influence of the two-dimensional and three-dime
Publicado em: 2007
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15. Study of synthetic calcinated clay aggregates behavior for use in pavement asphalt for Manaus / Estudo do comportamento de agregado sintético de argila calcinada para uso em revestimentos asfálticos para Manaus
In regions as the City of Manaus, where the superficial stone material is scarce or is to be found only at long distances, and a thick clay superficial layer becomes present, the alternative for the manufacture of artificial aggregates, having the clay as raw material, it comes as alternative, beyond replacing the normally used granular material - the pebble
Publicado em: 2007
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16. Caraterização tecnológica de três solos residuais estabilizados quimicamente com vistas a aplicações em geotecnia rodoviária e ambiental / Technological characterization of three residual soils chemically stabilized for highway and environmental geotechnical applications
Nesta pesquisa se introduziu e se avaliou o potencial técnico de um estabilizante químico, o RBI Grade 81, na estabilização de três solos da Zona da Mata de Minas Gerais, Brasil, para aplicações em geotecnia rodoviária e em geotecnia ambiental. Os aspectos inovadores envolveram a caracterização de um produto com potencial de: (i) emprego na estabil
Publicado em: 2006
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17. SHEAR STRENGTH OF AN UNSATURATED COLLUVIUM SOIL FROM RIO DE JANEIRO, RJ / RESISTÊNCIA AO CISALHAMENTO DE UM SOLO COLUVIONAR NÃO SATURADO DO RIO DE JANEIRO, RJ
In this present work one searched to evaluate the characteristics of shear strength and the suction-moisture relation of a tropical mature soil found in experimental field II of PUC-Rio, located in the city of Rio de Janeiro. For the determination of the shear strength of this soil, direct shear test in submerged samples using conventional equipment and dire
Publicado em: 2005
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18. THE GULLY PROCESS STUDY NEXT TO THE ITUMBIARA HYDROELECTRIC COMPLEX - GO / ESTUDO DE UM PROCESSO DE VOÇOROCAMENTO PRÓXIMO A UHE DE ITUMBIARA - GO
This dissertation, developed within the context of the PRONEX Project of the Environmental Geotechnical Center of PUC-Rio and through a FURNAS-PUC-Rio Convenium, presents a contribution towards the identification and comprehension of mechanisms involved in erosion processes, considering its geological and geotechnical aspects as well as preventive repairing
Publicado em: 2003
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19. Indicadores de qualidade estrutural e trafegabilidade de latossolos e argissolos vermelhos. / Indicators of structural quality and trafficability of hapludox and hapludalf.
The soil, besides being one of the basic resources of the natural and agricultural ecosystems, has been considered a finite, fragile and no renewable resource. For this reason the maintenance of its quality has been acquiring great relevance in the last decades. Several soil physical quality indicators have been used with the intention of developing guides o
Publicado em: 2002
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20. Methods for Assessment of Biodegradability of Plastic Films in Soil †
Traditional and novel techniques were tested and compared for their usefulness in evaluating biodegrad-ability claims made for newly formulated “degradable” plastic film products. Photosensitized polyethylene (PE), starch-PE, extensively plasticized polyvinyl chloride (PVC), and polypropylene (PP) films were incorporated into aerobic soil. Biodegradation
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21. Microbial degradation of poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) in soils.
The microbial degradation of tensile test pieces made of poly(3-hydroxybutyrate) [P(3HB)] or a copolymer of 90% 3-hydroxybutyric acid and 10% 3-hydroxyvaleric acid was studied in soils incubated at a constant temperature of 15, 28, or 40 degrees C for up to 200 days. In addition, hydrolytic degradation in sterile buffer at temperatures ranging from 4 to 55 d