Expansive Soils
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Microstructural strength of four subtropical soils evaluated by rheometry: properties, difficulties and opportunities
ABSTRACT: The structural strength of soils has been extensively described by physical and mechanical properties evaluated on the mesoscale for different soils and management conditions. However, changes in the organization of the soil matrix at the microstructural level, which can be obtained by rheometry, are still seldom used in soil mechanics. Our aim was
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-04
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2. Clay Mineralogy of Brazilian Oxisols with Shrinkage Properties
ABSTRACT Shrinkage capacity (caráter retrátil in Portuguese) is a new diagnostic characteristic recently introduced in the Brazilian System of Soil Classification (SiBCS) to indicate shrink and swell properties observed in subtropical soils from highland plateaus in southern Brazil, specifically in Oxisols with brown colors. In soils located in road cuts e
Rev. Bras. Ciênc. Solo. Publicado em: 24/08/2017
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3. Rheological Parameters as Affected by Water Tension in Subtropical Soils
ABSTRACT Rheological parameters have been used to study the interaction between particles and the structural strength of soils subjected to mechanical stresses, in which soil composition and water content most strongly affect soil resistance to deformation. Our objective was to evaluate the effect of water tension on rheological parameters of soils with diff
Rev. Bras. Ciênc. Solo. Publicado em: 23/06/2016
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4. Planosols Developed in Different Geoenvironmental Conditions in Northeastern Brazil
ABSTRACT The semiarid region of northeastern Brazil has a large area occupied by Planosols, where in the State of Pernambuco these soils are mainly used for livestock farming and subsistence crops. The knowledge on these soils is limited, which compromises the understanding on their behavior, potentialities and limitations.This study aimed to analyze morphol
Rev. Bras. Ciênc. Solo. Publicado em: 2016
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5. Análise do comportamento mecânico de um solo expansivo da província petrolífera de Urucu-AM para fins de pavimentação / Analysis of mechanical behavior of an expansive soil from the oil province of Urucu-AM for paving
O estabelecimento de uma infra-estrutura de transporte é fundamental para o desenvolvimento da região denominada de província petrolífera de Urucu-AM. A construção desta infraestrutura esbarra em varias dificuldades entre elas a escassez de materiais adequados para a construção de bases e sub-bases de pavimentos e as condições climáticas adversas,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/10/2009
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6. Analysis of mechanical behavior of an expansive soil from the oil province of Urucu-AM for paving / Análise do comportamento mecânico de um solo expansivo da província petrolífera de Urucu-AM para fins de pavimentação
The establishment of transportation infrastructure is critical to the development of the Urucu- AM region, a newly developed oil exploration area in the Amazonas state. The construction of such infrastructure is challenging due to the lack of suitable materials for the construction pavement base and subbase courses and adverse weather conditions, with altern
Publicado em: 2009
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7. Soil quality in native forest and pasture eco-systems in the eastern Acre region of Western Amazon / Qualidade do solo em ecossistemas de mata nativa e pastagens na região leste do Acre, Amazônia Ocidental
The state of Acre is presently at the initial stage of converting its forests into pastures. Around 12% of its total area (19.200 km2) has been deforested. Out of this, approximately 81% (13.352 km2) have been utilized by several productive segments in Acre (farmers, land settlers, extractivists, riverine farmers and cattle producers), with extensive pasture
Publicado em: 2008
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8. Estudo do comportamento histerÃtico de uma argila expansiva nÃo-saturada
Este trabalho analisa a variaÃÃo da histerese, em relaÃÃo à profundidade, de um depÃsito de solo expansivo nÃo saturado situado prÃximo a cidade de Paulista, na regiÃo litorÃnea do nordeste do Brasil. O perfil do solo à constituÃdo de argila expansiva nÃo saturada resultante do processo de decomposiÃÃo fÃsico-quÃmica de argilito e de rocha c
Publicado em: 2008
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9. Estudo geotecnico de um solo superficial da cidade de Bragança Paulista, SP / Geotechnical study of the superficial soil at Bragança Paulista, SP
The survey has the objective to investigate the geotechnical behavior of a typical soil profile at Bragança Paulista city - São Paulo State - Brazil. This profile is classified by the pedology as Red Yellow Oxisoil. To achieve this aim were accomplished characterization geotechnical tests, triaxial tests and consolidation tests. In the characterization tes
Publicado em: 2006
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10. Comportamento geomacÃnico de solos colapsÃveis e expansivos em Petrolina-PE: cartas de suscetibilidade
This paper presents susceptibility charters of occurring expansive and collapsible soils, as well as the outcomes from edometric assays of soils in the municipality of Petrolina-PE, this municipality, which is in a rolling economic expansion, lies in the interior place for mid SÃo Francisco; a region characterized by a semi-arid climate with rain taking pla
Publicado em: 2003