Characterization of Cemented Sand in Triaxial Compression
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 127, Issue 10
Abstract
This work aims at studying the stress-strain-strength behavior of an artificially cemented sandy soil produced through the addition of portland cement. An analysis of the mechanical behavior of the soil is performed from the interpretation of results from unconfined compression tests, drained triaxial compression tests with local strain measurements, and scanning electron microscopy, in which the influence of both the degree of cementation and the initial mean effective stress was investigated. For cemented sandy soils, it was concluded that the unconfined compression resistance is a direct measurement of the degree of cementation. Consequently, the triaxial shear strength can be expressed as a function of only two variables: (1) the internal shear angle of the nonstructured material; and (2) the unconfined compression resistance. In addition, a logarithmic formulation is adopted to express the relationship between static deformation moduli and axial strain amplitude in axisymmetric conditions. Data from other reported investigation programs give to the proposed correlations a broader acceptance to general geotechnical applications.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 127 • Issue 10 • October 2001
Pages: 857 - 868
History
Received: Jun 16, 1999
Published online: Oct 1, 2001
Published in print: Oct 2001
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