Effect of loading and suction history on time dependent deformation of crushed granular aggregates

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Title:	Effect of loading and suction history on time dependent deformation of crushed granular aggregates
Author:	Romero Morales, Enrique Edgar; Alvarado de Menéndez, Clara Elena; Alonso Pérez de Agreda, Eduardo
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
Abstract:	The paper presents the results of an experimental investigation aimed at evaluating the time-dependent compressibility of a coarse crushed quartzitic slate, focusing on the effects of the previous loading and hydraulic history. Long-term and large diameter compression tests under oedometer conditions were performed at different relative humidity (total suctions) and vertical stresses but following different loading and hydraulic paths. A finding is that pre-compressing at increasing overconsolidation ratios or pre-soaking the crushed material at constant and elevated stresses leads to the progressive vanishing of long-term deformations.
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques -Rock mechanics -Mecànica de roques
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Document type:	Article - Published version Conference Object
Published by:	Springer
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