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- W114505566 abstract "DALLA ROSA, F. Mechanical Behaviour of a Cemented Soil Cured Under Stress In Triaxial Tests. 1998. Dissertation (M.Eng. in Geotechnics) – Graduate Course in Civil Engineering, UFRGS, Porto Alegre. The behavior of cemented structured soils is strongly influenced by the existing stress state during the addition of the cementation agent. The common procedures for laboratory sampling usually cause damage to the natural structure of the materials, hindering, many times, the identification of the real behavior in regard to deformability and stiffness properties. The simulation, in laboratory environment, of confining conditions during the cement structure formation turns to be a mandatory circumstance for the study of the material’s behavior. Inside this context, this work aims to evaluate the influence of the existing confining stress (stress cure) during the cement formation in the behavior of the material, through isotropic drained triaxial tests. Thus, it suggested in this study the usage of artificially cemented soil cured under stress, with parallel observation of the influence of the cement degree, as well the effects from the confining stress used during the shearing stage. It was also evaluated deformability and strength characteristics through behavior analyses of the materials. An assessment of the yield surfaces was carried on from soil cemented small deformation analysis. The evaluation of stress-dilatancy was developed based on the exam of relatively large deformation behavior. The results showed that the general behavior of this material was strongly influenced by the variation of the stress curing both at small strains and at relatively large strains. Key-words: Stress curing; Yielding of cemented soils; Stress-Dilatancy behaviour." @default.
- W114505566 created "2016-06-24" @default.
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- W114505566 date "2006-01-01" @default.
- W114505566 modified "2023-09-27" @default.
- W114505566 title "Comportamento mecânico de um solo cimentado curado sob tensão em ensaios triaxiais" @default.
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