Réponses mécaniques d'une suspension de bentonite activée

Abstract

ABSTRACT Bentonite is a complex clayey material used in civil engineering. Indeed the components and the formation modes are variable (hydrothermal or supergene). We propose to compare the filtration properties and the mechanical behaviour for a natural bentonite (from Uruguay, mineralogically well studied) and their two activated bentonites, one with laboratory test and the other from industrial process to analyse the effect of the cationic exchange. It must be distinguished natural and industrial bentonites. The responses are completely different, depending highly the applied treatment.