dc.contributor | Santos Júnior, Olavo Francisco dos | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/3576316474096944 | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/1573496204231636 | |
dc.contributor | Danziger, Bernadete Ragoni | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/2006272256799450 | |
dc.contributor | Costa, Yuri Daniel Jatobá | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/6737841388506901 | |
dc.contributor | Severo, Ricardo Nascimento Flores | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/8346360266500368 | |
dc.creator | Lopes, Francisco Mateus Gomes | |
dc.date.accessioned | 2013-04-18 | |
dc.date.accessioned | 2014-12-17T14:48:13Z | |
dc.date.accessioned | 2022-10-06T12:18:51Z | |
dc.date.available | 2013-04-18 | |
dc.date.available | 2014-12-17T14:48:13Z | |
dc.date.available | 2022-10-06T12:18:51Z | |
dc.date.created | 2013-04-18 | |
dc.date.created | 2014-12-17T14:48:13Z | |
dc.date.issued | 2012-03-09 | |
dc.identifier | LOPES, Francisco Mateus Gomes. Evaluation of the mechanical behaviour of artificially cemented sand. 2012. 110 f. Dissertação (Mestrado em MECÂNICA DAS ESTRUTURAS, ESTRUTURAS DE CONCRETO E ALVENARIA E MATERIAIS E PROCESSOS CONSTRUTIVOS) - Universidade Federal do Rio Grande do Norte, Natal, 2012. | |
dc.identifier | https://repositorio.ufrn.br/jspui/handle/123456789/14840 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3949846 | |
dc.description.abstract | Soil improved with the addition of cement have been utilized as an alternative to the
construction of various types of geotechnical works, almost always present economic
and environmental advantages. This paper presents a study on the usage of cement
in the improvement of mechanical properties of sandy soils, characteristic of the
region of Natal, collected from its dunes. This research was made in order to analyze
the influence of cement content, voids, and also including water immersion
and confining pressure. Samples molded from cement-soil mixtures were tested for
unconfined compression tests and triaxial tests. The samples had the percentage of
cement mixed in 2.5%, 5% and 10% by weight. The cement agent used was the
Portland Cement of High Early strength(CPV-ARI), which promoted agility to the
experimental procedure for presenting a rapid gain in strenght. The void ratio used
ranged from 0.7 (more compact), 0,9 and 1,1(softer). The soil under study can be
considered as pure sand. In general, it can be stated that the larger the amount of
cement added to the sand studied is, the greater ultimate strength will be. Likewise,
as more compact the soil is, the less void ratio and more resistant it will be present.
The confining pressure tends to increase the resistance of the specimens. The
cementing adopted grades showed that the use of different criteria for failure did not
significantly alter the stress-strain parameters for the sand studied. The angle of
friction values were found within the typical range of medium and compact sands.
Cementing acted in the sand providing an intercepted cohesion which increased
enhancing the potential cementation. In triaxial compression tests, the sand with void
ratio is equal to 0.7 and showed the expected behavior for a compact sand while the
stress-strain behavior of the same sand with the void ratio of 0.9 tended to be
expected for the soft sand as well | |
dc.publisher | Universidade Federal do Rio Grande do Norte | |
dc.publisher | BR | |
dc.publisher | UFRN | |
dc.publisher | Programa de Pós-Graduação em Engenharia Civil | |
dc.publisher | MECÂNICA DAS ESTRUTURAS, ESTRUTURAS DE CONCRETO E ALVENARIA E MATERIAIS E PROCESSOS CONSTRUTIVOS | |
dc.rights | Acesso Aberto | |
dc.subject | Areia. Cimento. Comportamento tensão-deformação. Índice de
vazios. Resistência à compressão | |
dc.subject | Sand. Cement. Stress-strain behavior. Void ratio. Compressive strenght | |
dc.title | Estudo do comportamento mecânico de areias artificialmente cimentadas | |
dc.type | masterThesis | |