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Study of collapsibility of a compacted soil in different degrees of compaction and moisture content

Grant number: 12/18147-5
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2012
Effective date (End): November 30, 2013
Field of knowledge:Engineering - Civil Engineering - Geotechnical Engineering
Principal researcher:Roger Augusto Rodrigues
Grantee:Fábio Visnadi Prado Soares
Home Institution: Faculdade de Engenharia (FE). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil


This work aims to study influence of compaction and moisture (or suction) on collapsibility of a sandy soil. After getting the compaction curve by a Standard Proctor Test and characterization data, the collapse will be tested under degrees of compaction and different moisture values. These values will be chosen according to soil conditions in the field. Oedometer tests without controlled suction carried out with collapse induction in three stress levels. Additional oedometer tests with controlled suction will be performed on compacted specimens with degree of compaction (where collapse is small), under the influence of different suction values. Soil-water retention curve tests complete the experimental program. This research is part of Research Project (Proc.: FAPESP 2011/09031-0), where laboratory and field tests are performed under concepts of the Unsaturated Soils Mechanics.

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